US2399914A - Package filling machine - Google Patents

Description

May 7, 1946. c. DOERING ETAL PACKAGE FILLING MACHINE Filed March 18, 1940 6 Sheets-Sheet 1 nu 8 3 O aw m M" OQI INVENTORS. CH4 RL E S DOERING.

HENRY H. DOERING. BERT J.SKOGLUND. ERIC WAN RSOM BYGX ' AT ORNEY.

May 7, 1946 c. DOERING ET-AL" 2,399,914 PACKAGE FILLING MACHINE I V Filed March 1a, 1940 s Sheets-Sheet 4 INVENTORS.

50 CHARLES DOERING.

HENRY H. DOERING. BERT J. SKOGLUND.

-E :c WANDER ON.

BY 4M7 ATTORNEY May 7, 1946. c. DOERING ETAL I PACKAGE FILLING MACHINE Filed March 18, 1940 6 Sheets-Sheet s INVENTORS. CHARLES DOERING. HENRY H. D 0ERIN6. BERT J. SKOGLUND. BY ERIC W.A ERSON.

7 ATTORNEY. v

Patented May 7, 1946 PACKAGE FILLING momma Charles Doering, Henry H. Doering, Bert J. Skoglund, and Eric W. Anderson, Chicago, 111.; said Skoglund and said Anderson assignors to- Charles Doering and Henry H. Doering, both of Chicago, Ill.

Application March 18, 1940, Serial No. 324,469 -29 Claims. (01. 226-107) This invention relates to receptacle filling machines and more particularly to combined meas-- uring and container filling machines for viscous substances, although certain features thereof may be employed with equal advantage forother purposes. 1

It contemplates more especially the provision of improved means for filling packages with viscous substances such as pasteurized cheese, freshly churned butter, bread spreads, shortening compositions and similar plastic substances to effeet the confinement of pre-measured amounts in containers with utmost sanitation and without entailing much time, labor or expense.

Heretofore it has been the practice to largely depend upon hand filling of boxes or other containers with plastic substances such as freshly pasteurized cheese and similar edible substances. This involves appreciable manual labor, time, and

.is not conducive to the desired sanitation which is a requisite with edible products, While machines have heretofore been proposed for filling packages with plastic substances, yet these have not proven entirely satisfactory for the purpose in that viscous substances are rendered more dense responsive to pressure and are otherwise impaired both from an appearance as well as texture standpoint when subjected to handling in a manner that is not conducive to uniform or sanitary treatment. i

It is imperative, therefore, that edible sub-- stances such as butter, lard, cheese, oleomar- Still another object is to provide improved combined means for filling receptacles with premeasured quantities of viscous substances to confine such with uniform density and without impairment to the composition thereof.

A further object is to provide improved combined means for filling receptacles with premeasured quantities of edible viscous substances at a predetermined density without requiring skilled supervision, handling, or entailing much time.

' -A still further object is to provide a carton filling device that discharges edible viscous substance in premeasured quantities within the confines of containers at a predetermined density and vation of the machine shown in Figure-'1.

Figure 3 is a sectional plan-view through the main feeding piston and secondary control pisgarine, shortening compositions, and similar plastics be subjected to uniform handling in order to control their density and to avoid any impair tirely satisfactory nor uniform in packed weight orappearance. unless these variables are eliminated during packaging.

One object of the present invention is tosimpliiy the construction and improve the operation of machines of the character mentioned. v

' Another object is to provide improved means for effecting the premeasured filling of boxes. or other receptacles with viscou substance to effeet the confinement thereof with utmost sani-' tation and without entailing any appreciable time or labor.

ton substantially along line III-III of Figure 2.

Figure 4 is a sectional view of a control ratchet taken substantially along line IVIV of Figure 1. Figure 5 is a rear side view in elevation of-the machine shown in Figures 1 and'2.

Figure 6 is an enlarged. end view in elevation of the machine shown in Figures 1, 2 and 5.

Figure '7 is a sectional view of a cam mecha sm taken substantially along line VlI'-.VII of Flgure5. Figure 8 is a sectional view of the pistons taken substantially along line VIII-VIII of Figure 6.

"Figure 9 is a sectional view of a rackv engaging pawl taken substantially along line IX-lX of Figure 8.

- Figure 10 is a sectional view of a control ratchet takenfsubstantially along line XX oi. Flgureil.

Figure 11 is a sectional view of a box guide ad- J'ustment device taken substantially along linev mechanism taken substantially along line XIII- XIII of Figure 5.

Figure 14 is a detail view of the cylinder adjustment stop for the primary piston shown in Figures 2 and 5.

Figure 15 is a perspective view of the discharge valve element.

Figure 16 is a fragmentary side view in elevation of one end of the control piston showing the cap attachment therefor.

Figure 1'? is a sectional view of a cam element taken substantially along line XVII-XVII of Figure 6.

Figure 18 is a sectional view of the pc conveyor taken substantially along line 7" XVIlIof Figure 2.

The structure selected for illustration comprises a frame it constructed from an suitable material such as angle iron to present a substantially rectangular unit supported at the desired elevation by forward and rearward corner standards ii and i2. The frame ill supports, in this instance, a secondary frame 81 in superposed relation therewith. To this end, forward and rearward corner super-standards l8 and i9 extend upwardly from the frame iii to sustain the secondary frame I! with its flat top surface 2% in a horizontal plane parallel to the frame it for mounting instrumentalities to be hereinafter described. A pair of confronting angle bars 2i and 22 serving as guide rails are horizontally disposed in adjustable spaced relation beneath the flat top surface at, and each are provided with upwardl inclined extensions 23 and 24%, respectively, that serve as gravity feed rails for containers, boxes or receptacles 2a which slide down to the horizontal guide rails Ei-EZ.

The latter rails 2 l-22 are spaced to receive an endless conveyor belt 26 therebetween, the con- Veyor belt 26 extending between end rollers 2i and 28 mounted on shafts a t-3d ioumalled in bearing brackets 39 and 32, respectiveiy. The bearing brackets 3i$2 are bolted or otherwise secured to the frame. iii to supp t the rollers 2l28 with their endless conveyor belt 26 in the plane of the guide rails 25-22 to urge the boxes -25 forwardly. As shown, the horizontal guide rails Zl-22 are mounted on lugs 33-3 2! (Figure 11) that have oppositely threaded and aligned bores 35-456 to receive correspondingly threaded rods 3? and 38 therethrough (Figure 2) for effecting the approach and separation of the guide rails 2 i22.

A crank 39 is fixed to the rod 3? to impart rota tion thereto so that the rails 29-22 may be adjustably spaced relative to the conveyor 25 to accommodate boxes 28 of varying length. So that the guide rails 2i22 will be uniformly spaced by imparting corresponding rotation to the corresponding rods 31-38 responsive to the crank 39, the rod 38 isprovided with a sprocket wheel ll beyond the standard it on the extremity opposite to the mounted crank 39. Another sprocket wheel 40 is fixed to the extending extremity of the rod 31 (Figure 11) to receives, sprocket chain 42 in meshing engagement with the sprocket wheels 40--4l so that rotation of the crank arm 89 will cause the rails 2 i--22 to approach or separe provided on the forward bearing brackets 3| to maintain the conveyor belt 26 at the proper tension and compensate for stretch therein. The conveyor belt 25 is appreciably narrower than the normal separation of the guide rails 2i-22 (Figure 11) so that containers of different lengths can be supported therein. This permits the feeding of the receptacles or containers 25 of varying length on the conveyor 26 in predetermined timed relation with the feeding mechanism in that the timing is responsive to the filling of the container which is controlled by the adjustments in the feeding cylinder as will appear more fully hereinafter. So that the foremost receptacle or container 25 will be held stationary in predetermined filling position relative to the moving belt 26 which frictionally glides thereunder, an indexing mechanism 44 is disposed in substantially vertical alignment with the foremost receptacle or container 25.

The indexing mechanism [i i comprises, in this instance, a pair of confronting brackets 56 and 46 mounted on the frame iii by means of threaded studs 41. r The brackets 35- 36 support a stud shaft 48 that is iournalled therebetween to rotatively support a cylindrical member t9 having end plates 56 and 5| through which the stud shaft 48 projects. As shown, the end plates '5il 5i are provided with a plurality of circumferentially spaced teeth 5253 that are disposed in the path of the foremost receptacle or container 25 to serve as a stop therefor. The teeth 52-53 serve to present a stop to the foremost container or receptacle 25 which is held in vertical registry with the filling mechanism as will appear more fully hereinafter.

In order that the indexing mechanism it may be synchronized with the feeding mechanism, a tpothed plate 54 is mounted on the stud shaft i8 proximate to the bracket 56 (Figure 18). The toothed plate b t is comparatively smaller than the end plates 5il-5i and is provided with a plurality of circumferentlally spaced teeth 55 disposed oppositely to the teeth 5'25t of the plates 5i! and 5!. The bracket plate 56 is provided with an offset upward extension 56 which is apertured as at 5? in alignment with the teeth 55 on the plate 54% to guide a vertical rod 58 that is reciprocally mounted therein.

The reciprocally mounted rod 58 is elevate by a suitable timing mechanism to be hereinafter described to permit the cylindrical member 9 to rotate responsive to the friction imparted thereto by the endless conveyor belt 26. The surface of the cylindrical member 39 is serrated or suitably knurled to provide a roughened surface confronting the underside of the conveyor belt 26 so that there will be no idling or free slippage of the member 49 relative to the belt 26 unless the rod or indexing trip 58 is in its extreme downward position in engagement with one of the teeth 55 on the plate 55. Whenever the vertical trip 58 is elevated, the cylindrical member 89 is rotated re" sponsive to the friction imparted thereto by the linear movement of the conveyor belt 2b 30 that the foremost receptacle or container 25 may be carried away with the belt 26 after being filled with a premeasured quantity of contents.

The substance with which the box or container 25 is to be filled is received, in this instance, by a suitable cylindrical feeding housing communicating with a suitable source of substance supply such as a processing machine for conversion into the desired commodity possessed of the proper characteristics. In the case of cheese, a f eding housing it will communicate with the pasteurization chamber of a machine to which the hopper 59 is connected in any suitable manner (not shown) housing a is provided, in this instance, with a helical feeding worm 80 whose housing and hearing bracket 6i receives the worm shaft 62 journalled thereth'rough for rotary support. The worm shaft 82 supports a sprocket wheel 63 for rotation therewith. To this end, the worm shaft 52 projects from the housing 59 so that the sprocket. wheel 63 is externally carried thereon for rotation therewith.

As shown, the feeding housing 59 is supported around the peripheral edge thereof proximate to the bearing bracket 6| by means of a flanged circular bracket 84 which embraces the feeding housing 58. The supportingbracket 64 is supfor communication therewith. The

' care for filling two different sizes of containers plied with flanges 65 to enable attachment to a cross beam 66 fixed to the'underside of the super.

frame 11. The feeding housing 59 is provided with a rectangular orifice 61 that communicates H has a flat wall plate H reciprocally mounted and guided in the confronting grooves III of the supporting bracket 64 for registry of its inta'ke orifice 12 with the orifices 61-48 of the feeding 3 Ilunay be predetermined with'out anye'xtreme or receptacles 25. For instance, the lower recess 81 roughly determines the position of the u p r limit stop II for a five pound content. in containers II, while the upperrecess 88 will roughly determine the position thereof for a two pound content in containers 2!. The accurate weight for this rough adjustment has been efi'ected and is determined by the position of the upper limit stop-rod 80 that has a fine adjusting thread 8i thereon to slightly vary the position one way or dispensing chamber 'II is provided with a rectangular opening I! for registry with an elongated -discharge housing 80 that is flanged as at 9 I'for attachment thereto by means of a retainer frame 82. The retainer frame 92 is attached by any suitable fastening expedient such as threaded studs 93 which threadedly engage corresponding apertures provided in the bottom II of the measuring and dispensing cylinder II. The

housing 59. The measuring and dispensing cylinder II has its orifice 12 proximate to the lower end 11 thereof (Figure 8). A piston ll is fixed to a piston rod 15 that is guided in an axial bore 16 provided ina top cover plate 'II serving. as a complement of the vertical measuring and dis-.

pensing chamber ll. As shown, the lower extremity of the measuring and dispensing cylinder H is inclined inwardly as at I8 fora'depth commensurate with the aligned orifices il-88'l2 to serve as a lower limit stop for the piston 14.

The upward limit stop for the piston '14 comprises a disc I9 that comprises part of an upwardly extending rod which is threaded as at 8| for adiustable mounting in a cylindrical tubular member 82. The tubular member 82 projects through an upstanding boss 88 integrally or otherwise formed with the top closure plate 11 of the cylinder II to receive a threaded stud ll therethrough. The threaded stud 84 engages the tubular member .82 and is provided with a lock nut 85 engaging the upper extremity thereof to maintain the threaded upper limit stop rod 80 in its desired position responsive to the rotation thereof in one direction or another by manipulating the knurled finger knob 86 fixed to the upper extremity thereof. It will be apparent, therefore,

- housing bracket 84.

A cam follower wheel III is iournalled on a pin that a fine adjustment of the upper limit stop disc 19 may be effected through the medium of the threaded rod I and its lock nut 05 which retains the adjustment against accidental displacement.

In order to of the threaded stud or set screw 84 so that two predetermined positions of the upward limit stop provide predetermined positions-for the upper limit stop guide 82,1; plurality of re- I cesses 81 and 8|, in this instance two, are provided in the exterior surface thereof (Figure 14) to receive the corresponding y. shaped extremity lower end of the discharge housing 90 terminates, in this instance, in a substantially cylindrical end portion which is somewhat larger in diameter than the width of the discharge housing to present a substantially circular cross-section.

A discharge opening is provided in the lower end of the cylindrical end portion 94 of the discharge housing 80 for controlled passage of the substances therethrough by a correspondingly. shaped closure plate 96 therefor. The closure plate 98 has a curvature corresponding with that of the cylindrical end portion 94. The arcuately curved closure plate 96 is disposed interiorly of the cylindrical end portion 84 and intermittently rotates relative to the discharge opening 95 to control the passage of the substances thcrethrough as such is extruded under the pressure of the piston ll.

As shown. the arcuate closure'plate l6 (Figures 8 and 15) is provided with circular and memhers I] and u, and the latter has a crank a atlever III is pivoted intermediate the extremities thereof as at III to the retainer frame ii. A

bracket Ill is mounted by studs ill and II. to a flange I" supported by or constituting a part of aplate Ill fixed to the substance conveyor Ill fixed to the upper extremity of thel'ever II! for displacement along an irregular cam groove 1 ll formed in the bracket Ill. It will be observed that'with the vertical reciprocation and displace-.

ment of the piston ll that is accomplished in part during the corresponding displacement of' the. cylinder II, the discharge housing II will deseend therewith so that the cam follower wheel ill willpass through and alongtheirregular'cam groove I II to intermittently. rotate the arcuate closure I. of the correspondingly shaped discharge orifice II for operation in timed relation with and responsive" to the descent of the measuring and dispensing cylinder II. To this end.

the cues dispensing cvlinderli and its discharge x will appear more fully hereinafter.

As shown, the indexing mechanism rod 58 extends upwardly to project through a guide plate II2 (Figure 6). The plate II2 is supported by the top end plate 11 of the measuring and dispensing cylinder] I. To this end a wing nut II3 threadedly engages a stud (not shown) that retains the guide plate H2 in horizontal extending position to confront the ofi'set extension 55 of the bracket 46 so that the indexing rod 50 may reciprocate therebetween. A spring II4 envelope the rod 58 beneath the top guide plate H2 and it is maintained in the desired position by a collar IIG fixed to the rod extremity above the guide plate II2 which moves with the cylinder II. As a result, the indexing rod 58 will be normally urged downwardly through the influence of the spring- H4 in the path of the teeth 55 on the wheel 54 to retain the tooth wheels 50-5I against rotation responsive to the linear movement of .the conveyor belt 20. Thereafter, the receptacles or containers 25 will be maintained stationary until the measuring and dispensing cylinder II has discharged its contents in its lowermost position and has ascended to its upper extreme position coincident with elevating the rod 50 momentarily above the teeth 55 on the wheel 54 and only for a sufiicient distance to disengage the toothed wheel 54. This upper extreme position of the .cylinder II is only retained for a moment and just long enough for the cam groove I58 that actuates the cylinder moving lever I67, to pass its high point and come to rest just past the latters center which will return the cylinder II downwardly for a small distance to its initial charging position (Figure 8) thereby lifting the rod '58 up and down to disengage one tooth 55 and engage the next succeeding tooth 55 on the plate 54.

The spring II4 (Figure 5) is placed under compression as the rod 58 returns with the cylinder II to its extreme upward charging position (Figure 8) After the cylinder II is filled to a predetermined extent with the substance from the feed housing 59, the cylinder II descends to its lower extreme position so that the next tooth 55 of the plate 54 will be engaged by the rod 58 to again stop plates 505I and retain the containers or receptacles 25 against further movement or displacement with the conveyor belt 25. As a result,

pensing cylinder II is positioned with its discharge housing-immediately above and proximate to the foremost container or receptacle 25 simultaneous with resetting the closure plate to open the orifice and 1111 the container with a. messpiston rod I20.

content, and other factors. density of the substances would render impossible ured quantity of contents extruded therethrouzh under pressure of the piston it.

When the foremost container 25 is filled with the entire contents of the cylinder I I, the cylinder II and piston 14 together with the discharge housing 90 ascends to its upper limit and simultaneously permits the release of the filled receptacle or container 25 to make room for the succeeding package or'container 25 to be moved to the filling station in the foremost position constituting the filling station immediately below and in vertical alignment with the discharge orifice 95 under the urge of the conveyor belt 26. This cycle of operation is repeated through instrumentalities that will presently be described.

Rotation of the helical worm or conveyor with its axial shaft52 responsive to the rotation of the sprocket wheel 63 that, in turn, is operated by the power source to be hereinafter described, feeds the substances through the orifice 6'! that is in alignment with the throat 68 communicating with the entrant orifice 12 of the measuring and discharge cylinder II. The passage of the substances into the cylinder 'II serves to raise the piston I4 until it reaches its upper pro-set adjustable stop I9. When the cylinder II has been filled to this extent, the excess substances being conveyed along the worm 60, is displaced into a reserve cylinder I I1 (Figures 3 and 8) that constitutes the density control for the substance which is subjected to a uniform pressure.

The density of the substances would otherwise vary depending upon the pressure, the moisture Variations in the the accurate measuring and discharge of a predetermined uniform quantity into the receptacles or containers 25. The density, control cylinder III is, in this instance, formed integral with the feeding housing support bracket 54! and extends rearwardly in a direction opposite to the primary discharge orifice 61. Y

The feeding housing 59 is provided with an orifice II8 that communicates with the density control cylinder II'I fitted with a piston H9 that is anchored to a rod I20. The'piston rod IE0 is reciprocally mounted through a bore I2I of a cylinder cap I22 that serves to close the density control cylinder I".

It will be observed that the cross-sectional area of the cylinder housing III together with its commensurate entrant orifice I I8 is substantially larger than the primary discharge orifice 6? disposed diametrically opposite thereto. Thus the 55 total substance pressure built up within the cylinder housing I" together with the pressure of the excess substances in the density control cylinder III is transmitted to the piston II9 that displaces the piston rod through the cylinder cap I22 against the urge of a coil spring I23 which envelope the externally projecting portion of the The piston rod I20 projects through an axially bored collar I24 that is free on the piston rod I20 and normally urged by the spring I22 in the direction of another collar I24 fixed tothe rod I20 for displacement therewith relative to the cylinder end cap I22. The spring I23 envelops therod I20 between the free collar I24 and a stop I25 axially bored as at I23 to serve as a spaced piston rod guide in conjunction with the cylinder cap I22. The spring I23 is compressed during the outward movement of the piston I I0 and rod I20, and serves to return these parts to initial position after the contents of the cylinder 50 is sufficiently discharged to release the pressure therein and displace any excess sub-V stance from the cylinder housing 1.

I33. The vertical trip arm I32 is suitably aper- I tured to enable tilting relative to the stud I29 so that the urge of the spring I3I will cause the trip I33 to pivot in a clockwise direction about a pin I34 that pivotally connects the right angular trip I33 to the vertical plate I28.

A horizontal arm I35 of the trip member I33 is provided with a series of upstanding serrations or teeth I36, in this instance three, that cooperates with a pawl I31 that depends from the horizontal rod I31 anchored in thelower extremity" operation. The vertical rod I38 is rotatively journalled in a tube or guide sleeve I39 which is integrally or otherwise attached to a bracket plate I39 to enable'the fixed attachment thereof to the top plate 20 of the superposed frame I1 (Figure 8). The tiltable right-angular trip I33 permits the teeth I35 to ride past the pawl I31 on the return movement of the plunger rod I20.

The vertical rod I38 terminates upwardly in a trip I II having an engaging stud I4I' projecting radially through a hub I42 thereof. The trip MI and its hub I42 are oscillatably mounted relative to the stationary guide sleeve or tube I39 through the medium of a coil spring I42. interposed therebetween to rotatively urge the trip I4I with its hub M2 in a clockwise direction (viewed from Figure The trip MI and its hub I42 has an extension Hi3 which is oscillatably limited in its movement by confronting adjustable studs I44- I34 that are mounted in confronting upstanding arms I45 and I45 (Figure 10) anchored as at I36 to the upper extremity of the vertical tube or guide sleeve I39.

The studs I44--I44' enable the rotary adjustment of the trip I4I on the top extremity of the rod I38 for limiting actuation of the trip lever extremity I41 to swing into and out of engagement with a trunnion I48 carried by a clutch element I49. The clutch element I49 is pivotally mounted as at I50 to the external housing I5I of a peripherally toothed clutch element I52. The peripheral toothed clutch member I52 is attached through its hub sleeve to. a shaft I53 which is rotatively driven by any suitable power instrumentalities to be hereinafter described. 1

As shown, the pivotal clutch element I49 has a pawl I54 that meshes with the peripheral teeth on the. clutch element I52 to impart corresponding rotary movement to the clutch housing I5I. A

spring I55 cooperates with a pin I58.formed on the-other extremity I58 of the clutch element I49 lodging the spring I55 in an annular aperture I59 formed on the external clutch housing I5I. It

will be apparent, therefore, that the counter-.

clockwise rotation of the clutch element I52 will impart corresponding directional rotation to the clutch housing I5I for one revolution whenever the trip MI is rotarily displaced responsive to corresponding movement of the pawl I3'I (Figure 9).

This movement is translated through the rod I38 which is actuated when the teeth or serrations I36 on the trip I33 are linearly displaced with the piston rod I20 (Figure 8) This occurs whenever the conveyor 59 has filled the cylinder II to its desired extentand displaces the piston HQ with the excess substances to impart correspondin displacement to the trip I33.

n short, the lever arm I69 can be freely oscillated when the cylinder II i empty which occurs at the end of each cycle of operations, since the.

clutch shown in Figure 4 is a one-turn type well known in its use on punch press machines and the like. This type of clutch is disengaged when all the instrumentalitieshave returned to their initial position in readiness for the next cycle of operation. The pawl I54 is fixed to the arm I49 which has .9. lug I 49 in the path of the trip IN, the latter having its nose or pointed extremity I41 normally disposed in the path of the lug I43 by virtue of the spring I42. As'the shaft I53 rotates with the clutch element I52 in a counterclockwise direction (viewed from Figure 4), the engagement of the pawl I54 with any one of the ratchet teeth on the clutch element I52 responsive to the urge of the spring I (Figure 4) the clutch housing I5I will rotate with the clutch element I52 for one full revolution. Because the nose Ifl'l of the trip I is again displaced by the spring I42 in the path of the lugl48 before the I clutch housing I5I rotates one revolution, the pawl I 54 is disengaged from the clutch element I52 and the clutch housing I5I with its tubular shaft IE2 is brought to an abrupt stop as the lug I48 hits the shoulder MI on the trip MI.

Thereafter, it is necessary to rotarily displace the trip ItI about its mounting shaft I38 against the urge of the spring I42, thereby permitting the pawl I54 to become reengaged with the ratchet teeth I52 to repeat the one-turn revolution of the shaft I62. This is accomplished by the excess chamber II I (Figure 8) being filled sufiiciently for the trip I33 to be moved to the 1 right with the collar I24 and the rod I20 (Figure 8) so that the first tooth I36 thereon will displace the pawl I31, thereby rotating the shaft I38 to effect the removal of the trip I4I from the path of the pawl lug I48. Thereupon, the clutch rotates past the trip I4I which immediately returns to its ini'tial position under the influence of the spring I42, this occurring before the lug I48 again reaches the extremity I41 of the trip I4I. After the contents of the cylinder 'II has been emptied, the pressure of the substance in the feeding housing 59 is less than the force of compression in the spring I23 which returns the pis ton I I9 to empty the excess cylinder I I1.

'This insures the dependable operation of the instrumentalities that are driven by the shaft I53. The shaft I53 is joumalled in bearing brackets I60 and. I6I mounted to the top 20 of the superimposed frame I! (Figure 1) to serve as a support for theshaft I53 and the operating instrumentalities connected therewith. As shown, the external clutch-housing I5I has a tubular shaft I52 extending therefrom to enable the shaft I53 that projects therethrough (Figure 7) to support instrumentalities that are to be rotated with the shaft I62. The cams I63 and IE4 are mounted, on the tubular shaft I62 to cooperate with cam follower rollers I65 and I66 rotatively mounted on lever cranks I61 and I68, respectively.

It is to be noted thatthe cam follower roller I 65 rides in a lateral cam groove I69 provided in the lateral wall of the cam I63. The crank levers I61 and I68 terminate in tubular bearings I16 and Ill that receive the shaft I12 therethrough for mounting in bearing brackets I13 and I14 (Figure 1). The bearing brackets I13 and I14 are attached tothe top plate 26 of the super frame I1. These bearing brackets I13I14 carry a rod I12 which pivotally supports the levers I61I68 for timed oscillatory movement responsive to the rotation of the cams I 63I64. It will be observed that the crank lever I61 is pivotally mounted at its forward extremity to a pin I15 carried by a depending link I16 having a furcated extremity I11 provided for that purpose.-

The lower extremity of the depending link I16 is pivoted as at I18 to a bracket I19 integrally or otherwise attached to the top closure plate 11 of the measuring and dispensing cylinder H to effect the ascent and descent thereof in the confronting groove 16'. The lever crank I68, on the other hand, has a rounded extremity I66 which is shaped to project into and engage the slotted shoulder I8I provided on the piston rod 15 to effect the ascent and descent thereof in timed relation with the displacement of cylinder 1|. To this end, the piston rod 15 is reciprocally guided in the bearing I82 fixed to the top extremity of a substantially U-shaped guard housing 'I63 that is anchored to a shoulder I84 integrallyor otherwise formed on the cylinder top closure plate 11, the guard I63 being held stationary relative t the the lever I61 is interrupted just as the high point cylinder 1| to preclude any possible injury to the attendant who may be called upon to manipulate the adjusting nuts 85-66.

In order to release the clutch elements I69-I52 after the cylinder H has been actuated to its lowermost position and recedes to its filling position just below the maximum ascent thereof and constituting the initial position thereof, the crank lever I61 is provided with an adjustable link rod I85 which is pivotally connected thereto as at I86. The link rod I85 threadedly engages the complemental tubular member I81 that is pivotally connected to a pin I88 which extends through spaced furcations I89 provided on the trip I33.

It should be noted that the pin I88 projects through a stub rod I85 that freely telescopes within the lower end of the sleeve I61 for yieldable connection thereto through the medium of a tension coil spring I89. The tension spring I89 is confined in the sleeve I81 with-the lower end of the spring I39 anchored to the stub rod I85 and the upper end thereof fixed to a crosspin I88 which extends diametrically through the sleeve I81 below the bottom end of the rod I85 (Figure 8). When the lever I61 pivots in a clockwise direction (viewed from Figure 8) to elevate the cylinder II and the latter is momentari y lifted above its initial starting position to disengage the indexing rod 58 from the toothed wheel 54, the spring I89"will yield to'impart tension therein and thereafter assume its normal length upon the return of the cylinder H to its initial filling or charging position (Figure 8) where it is held until filled with a predetermined volume of substance.

of the cam groove I69 traverses beyond the cam follower I65. This occurs coincident with the arrival of and engagement by the trip lever trunnion I 48 with the trip Ill-I41 to disengage the clutch housing I5I from the clutch element I52 to bring the cylinder H to an abrupt stop. The clutch trip I4II51 is in this tripping position shortly after the filled or charged cylinder 1| starts to move downwardly responsive to the filling of the excess density control cylinder I1 which again'rotates the trip I4II 61 from the path of the trip lever trunnion I66. Thereupon, the clutch element I52 and clutch housing I 5I are engaged for one full revolution. This downward movement of the fully charged cylinder 1| responsive to the lever I61 that is displaced by the rotation of the cam I69 serves to pivotally displace the trip arm I35 in a counterclockwise direction (viewed from Figure 8) between the initial upward filling position of the cylinder 1I and the lowermost discharge position thereof to free the pawl I31 from the serrations or teeth I36 on the trip arm I35 thereby permitting the return of the clutch trip IM to its initial position responsive to the urge of the spring M2 (Figure 4), and the trip I 'tI in this position effects the disengagement of the clutch element I49 from the clutch element I52. This completes a cycle of operation forfilling a single container 25, and another cycle starts immediately in that the substance feed worm 62 rotates continuously to again fill the cylinder 1i and the density control cylinder I I1.

tacle or container 25 in an automatic cycle of operations until all of the substances have been fed through the housing 59 into the cylinder II for filling the receptacles or containers 25.

The excess substance that enters the density control cylinder H1 is returned to the feeding housing 59 through the urge of the spring I23. This occurs when the cylinder II is empty or partially unfilled while substances are being supplied thereto from the feeding housing 59, and

during this time the pressure in the feeding housing 59 is less than that exerted by the spring I23. The clutch shaft I53 and the feed worm 62 are all operated from a, common source of power such as an electric motor I96 that is attached to a speed reducer I9I having its housing formed integral with a bracket I92. The bracket I92 is fixed to the top plate 26 of the super frame l1 to rotate a shaft I93 responsive to the energization of the electric motor I96. The speed reducer shaft I93 has a pair of sprockets I I94 and I95 fixed thereon for meshing engagement with sprocket chains I96 and I91, respectively.

The sprocket chain I96 meshes with a sprocket wheel I98 fixed to the shaft 36 (Figure 2) that rotates the conveyor drum or pulley 28 to impart linear movement to the endless conveyor belt 26. The sprocket chain I91 meshes with a sprocket The return or counterclockwise movement of wheel I99 carried by a sleeve 266 integrally ure 1).

formed with the clutch element I52 (Figures 4, '1, and 10). Consequently, the clutch element I52 will .be continuously rotated at constant speed relative to the clutch element I49 pivotal- 62 to impart constant rotation thereto for feeding the substance fromthe source of supply as above described. The clutch element I 52 with its sleeve 200 is fixed to the stub shaft I53 for rotation therewith. The sprocket i99 has its hub fixed to the clutch element sleeve 200 while the clutch housing II has its sleeve I62 journalled on the stub shaft I53 to rotate relative thereto 2 or therewith through the clutch element I52 and the housing I'5I when interengaged by the clutching member I49. The cams I62 and I63 are fixed to the clutch housing sleeveI62 to rotate therewith through the operation of the clutching member I 49 in connecting the stub shaft I53 therewith. 7 It will be observed; therefore, that all of the instrumentalitiesare operatively connected for actuation responsive to the rotation of the electric motor I90.

In order to maintain the substances at the proper temperature, a cylinder jacket205 envelops the substance feeding housing 59 to present a chamber 206 that receives a'temperature COD-r trolling fluid such as hot water. That portion of the feeding housing 59 that is confined by the-supporting bracket 64 is also maintained at the proper temperature by means of a jacket 20?! (Figure 13) which is disposed therearound to provide a chamber 200. A similar jacket 209 -is provided around the major portion of the measuring. and dispensing cylinder "H to provide a water chamber 2I0.

The chambers 206, 206 and 2H) are interconnected through hoses 2H and M2 (Figures 1 and 13) that communicate with tubular nipples '2i3-2I4 and 2I5-2I6 provided in the jackets 205, 201 and 209 to communicate with the chamhers 206, 200 and H0; A tubular nipple 2I1 projects from the lower part of chamber 200 to enable connection of the flexible hose 2I8 to the discharge port of a circulating pump 2I9 mounted on the top plate 20 of the super frame I1 (Fig- Another hose 220 extends from the upper nipple 22I of chamber 2I0 to any convenient drain such as a receiver (not shown) for recirculation through another hose 222 connected to the intake port of the circulating pump 2I9 for: communication with any source of hot water such as a supply heater tank (not shown). The pump 2I9 has-a sprocket 223 rotatively convey the substances such as plastic cheese through the feeding housing 59 from a I suitable source of supply. The sprocket 63 is driven by a chain i 202 that meshes with a sprocket wheel 20I'which idler sprocket 203 to mesh with a sprocket wheel 63 fixed to the extremity of: the conveyor shaft is continuously driven by the clutch'shaftfl53; The clutch shaft I53 isin turn driv'nby the sprocket I99 fixed to the sleeve '200coristituifmg part of the clutch element I52 fixed totheshaft I53. A chain I91 connects the sprocket I99 with the sprocket I95 carried by the reduction gear shaft I93. ,;The reduction gear shaft tea is driven by the motor. I90 through a train of i internal gears (not shown). The substances will,

thereupon, pass through the rectangular discharge orifices 61-68-12 to elevate the piston 14 within the measuring and dispensing, cylinder It I should be assumed that the'stop 19 is presethfor Z any selected quantity of plastic substance that 1i until it reaches the limit of thestop'19.

is to constitute a single charge for the containers or boxes 25.

The piston rod 15 is operatively connected to the lever arm I68 which, in-turn; is pivoted to I the shaft I12 mounted in the bearing bracket I62 (Figure 1'1).

I14. The lever arm I68 is free to oscillate relong as theactuatorcam I64 (Figures 7. and 17) is removed from the path thereof in its initial stationary. position with the lobe of .the cam I64 substantially above the mounting shaft This is determined by the tubular shaft I62 which is clutch operated (Figu're 4) after the cylinder 1! is filled with the nected tothe sprocket chain I91 to impart rotation thereto so that continuous pumping of the the conveyor feed screw 60 through the medium of th haft 52 and itssprocket wheel 63 to consubstance to be packaged and the excess cylinder II'I is partially charged to move the trip arm I33 with its teeth I36 against the pawl I31. This rotates the shaft I38 (Figures 4 and 9) to rotatively displace the trip MI from the path of the pawl I58 and its lug M6,.thereby allowing the pawl I54 to engage the ratchet teeth on the clutch element I52 that continuously rotates with the shaft I53.

Thereupon, the clutch housing 'I5-I with its tubular shaft I62 and the cams 164469 are rotated one revolution to actuate the levers I60 and I61 through the downward phase of a complete oscillation according to the shape and timing position of the cams I60 and I59 on the shaft I62. It should be noted that as the lever arm I61 reaches its extreme downward displacement with the cylinder 1| in its lowest position, the rod I--IB1 is only slightly displaced downwardly owing to'its proximity to the lever pivot I12 to pivotally depress the angle trip I33 in a counterclockwise direction (viewed from Figure 8) so that the teeth I36 would be clear of the pawl I31 and permit the latter to easily return to its initial position under the influence of the.

spring I42 (Figure 4). I

When the cylinder 1| has been filled through the rotation of the conveyor feed screw 60, the excess causesthe density control piston II9 to recede within the cylinder II1 against the urge of the spring I23. Thereupon, the upstanding plate I28 is moved therewith to correspondingly displace the trip arm I35 with its teeth I36 in the path of the pawl I31. This displacement causes the partial rotation of the detent I31 to Thereupon, the piston I4 and measuring cylinder II are displaced downwardly so that the dispensing housing 90 and its cylindrical extremity 84 will closely approach the open top of the container 25 disposed at the filling station. During the downward movement of the dispensing housing 90, the lever I02 is displaced therewith so that the cam follower I09 will follow the cam groove III to rotate the dispenser closure 96 in timed relation with the piston 14 so that the container 25 at the filling station will be charged with a predetermined quantity of substances.

The containers 25 are lined with suitable sheet material depending upon the dictates of commercial practice and at the moment that the container 25 disposed at the filling station is completely charged with the substances, the measuring cylinder II ascends upwardly to momentarily elevate the indexing rod 58 (Figure 6) and permit the ratchet wheel 54 to rotate with the cylinder 49 in frictional contact with the endless belt conveyor 26. The endless belt conveyor 26 is continually driven and when the indexing rod 56 is in engagement with the ratchet wheel 54, the belt 25 slips over the periphery of the drum 40. When the trip rod 58 is momentarily elevated as described herein, the cylindrical drum 49 will rotate to permit the container 25 at the filling station to be delivered to its desired destination responsive to the endless conveyor belt 26 in that the teeth 52-53 of the end plates 50-5I will rotate with the drum 49 to permit the delivery of the filled container 25.

Thereupon, the succeeding container 25 is carried by the endless conveyor belt 26 to the filling station with, the next succeeding teeth 52 53 on the drum end plates 50-5I again disposed in the path of the succeeding container 25 to maintain such in registry with the dispensing housing 90 at the filling station. As the container 25 at the filling station is filled, the timed actuation of the various instrumentalities described permits the ascent of the piston 14 so that the excess substances conveyed into the control cylinder I H is discharged therefrom intothe feeding housing 59 by the piston IIO which is actuated under the urge of the spring I23, thereby returning the parts to their initial position in readiness for a repeat cycle of operation in that the clutch-trip spring I42 will return the trip I to its' initial position to disengage the clutch housing I5I with its pawl I54 from the clutch element I52 so that the actuating levers I6'I-I68 are rendered inactive while the measuring and dispensing cylinder H is again being filled.

More specifically, the cylinder II is initially at its charging position (Figure 8) when the clutch housing I5I has been disengaged from the clutch element I52 and this charging position of the cylinder II is maintained until filled with the substances forced therein from the feed housing 59 by the continuously rotating worm 60. The charging of the cylinder II serves to elevate the piston I4 therein until it reaches the adjustable limit stop 19 which is pre-set to allow a predetermined quantity of substances to be introduced in the cylinder II commensurate with the-size of the containers 25 to be filled. The piston rod is fixed to and moves upwardly with the cylinder piston I4.

The lever I65 is raised with the piston rod 15 in that the cam follower I65 thereon is out of engagement with the cam I64 which has its high point'disposed on the opposite side of its mounting shaft I62 (Figure 7) when the clutch housing I5l is disengaged from the clutch element I5ii. When the cylinder II is filled with the substance supplied thereto by the worm in the housing 59, there can be no further introduction of substances therein. Continued rotation of the feed worm 50 effects the feeding of the substances into the control cylinder or excess substance chamber II! to displace the piston II9 with its rod I20 toward the right (viewed from Figure 8). The bracket supporting collar I24 fixed to the piston rod I20 will be correspondingly displaced with the bracket I33 to move the spring sustaining collar I24 therewith and compress the spring I23.

When sufiicient excess substances have been introduced into the control cylinder III to displace the piston rod I20 a distance sufficient to carry the collar I24 and its attached bracket I33 so that its teeth I36 engage the pawl I31, the vertical shaft I38 is rotarily displaced to move the trip I M with its pointed extremity I41 from the path of the clutch pawl lug I48, thereby disengaging the trip I II therefrom and permitting the clutch spring I55 to efiect engagement between the pawl I54 and the teeth of the clutch element I52 (Figure 4) that-continuously rotates with the shaft I53. Consequently, the clutch housing I5I will rotate with the clutch element I52 to correspondingly rotate the sleeve shaft I62 (Figure 2) and cause the cams I63-I84 to rotate therewith.

The cam I63 has its cam groove I69 in engagement with the cam follower I55 to depress the lever I51 (Figure 8), thereby lowering the cylinder H with its dispensing housing 30 to the foremost container 25 which is at the filling station. This downward movement of the cylinder II causes the cam follower I 09 on the discharge closure plate operating lever I02 (Figure 12), to follow the irregular cam groove I I I formed in the bracket I04. The passage of the cam follower I09 along the cam groove ill effects the rotation of the arcuate closure plate I06 to assume a position out of registry with the discharge orifice 05 at which time the cam I54 effects engagement with the cam follower I58 on the lever I68 to depress the cylinder piston I4. This displaces the piston 14 within the cylinder II to extrude the substances through the discharge orifice 95 for deposit in the foremost container 25 supported by the conveyor belt 26 at the filling station.

With the discharge of the substances from the cylinder II, the clutch housing shaft I62 continues to rotate with the cam I-I64 to actuate the levers IBI-IBB so that the cylinder II and its piston 14 are returned to their initial extreme upward position. In the course of the upward displacement of the cylinder I I, however, the cam I63 effects the momentary elevation thereof slightly above its initial upward charging position to impart corresponding movement to the indexing rod.58 which disengages the engaged tooth 55 and instantly returns to engage the next succeeding tooth 55 on the indexing plate 54. This the trip "I disposed in the path of the pawl spring ill. The springlll' is tree to eifect the return oi the trip Ill with its shaft Ill owing 'tothedepressionoithebrackctarmltiina means iorfeeding substances into said adjustable measuring chamber, piston means in said chamber for discharging the substances from said measuring chamber. an excess substance chamber w nter-clockwi dir ction (vi w d from Figur communicggng with szsidmileediililimnbizans, and 8) against the urge oi the contracting spring means in d excess an ce c r responm, Thi occurs hil th lev r .lfl mov s-d w sive to excess substances introduced by said feedvw n- 11 t eflect th d t of th cylin e 1| ing means after filling said measuring chamber andglso t a l r t t downwardly displageg for controlling the operation of said chamber disthe rod its that is operatively connected to the ch r ing m an bracket I33. Thus, the counter-clockwise deprest lv vluah r fil g gge, f combilasion or the bracket I33 (Figure 8) occurs responi n a measuring 0 0 means sive to the rod I85 after the clutch housing pawl feeding substaiifzs into izshaid mbiisurin f ham i a V I N with its mg I rotates with the clutch elemeans r disc 8 8 e 511 911688 r0111 58 n [5: beyond t trip I, thereby again pleel5 chamber, means for lowering said chamber to the ing t et in t t of the pawl 54 befgre container to befilled during the operation of said it and the clutch housing iii completes a full discharging a aand means responsive to fillrevehluem ilg sxaidhchagibelr fol -i controliinghthe operation consequent] the clutch housing I5| with its 0 S5 0 am 9W ligand 80 r in meanstubular sha'it r sleeve ii! that carries the cams 5. In a container filling machi the combinaiGl-itl therewith, can rotate only for a single tion with a measuring ch m f means revolution which actuates the instrumentalities feedlngtsubgliiafies g izand effects their return to their initial position means 8 s11 ances mm 5911 to start the next cycle of operation after the igi fi gghgxi ngextendin fa an cylinder Ii is filled and the control cylinder or 1 mm ca mg w measur g c m er, the excess substance chamber I I1 is again charged means r lowering said chamber to the container to provide for the,connection between the clutch be filled l the operaiioniof a E e housing [5i and the clutch element I52. All durmeans an means 3 g Sal m this time the h ft 53 eontinuously t t chamber for controlling the operation of said So that the worm so in the reed housing 59 will g g is gfi h g 13 b. always be ready to feed substances first to the a 11 a n r g mac ne, e com 1- cylinder II and thereafter to the control cylinder nation with a chamber 0: means for or excess substance chamber The power ieedingsubstances into said measuring chamber, Source comprising, in this instance, the electric means for discharging the substances from said motel-1", is in continuous operation except chamber, a discharge housing extending from when its master control switch (not shown) is and communicating with said measuring chamshut fi to bring n mstmmentahties to a stop; her, means for lowering said chamber and dis- It will appear th refore that a very precise charge housing proximate to the container to be accurate and dependable container filling mafilled during the P P of 551d discharging chine has been provided that is automatic and 40. means, and means responsive to filling said chamis sumcienfly'flexible in adjustment so that ber for controlling the operation of said chamgreat variety of weights in diilferently sized vber lowering and discharging means. miners 25 may be uma various changes 7. In a container filling machine, the combimay be made in the embddiment f the invention nation with a measuring chamber, of means for herein specifically described the departing feeding substances into said measuring chamber, fro the invention or sacrificing any of the means for discharging the substances from said vantages features th f and nothing here chamber, a discharge housing extending from in shall be construed as limitations of the mum I and communicating with said measuring chammon. its concept or structural embodiment as to ber, means for lowering and chamber and disbhe whole 'm part thereof t defined charge housing proximate to the container to be m the appended clam filled during the operation of said discharging we claim: 1 means, means responsive to filling said chamber ma wnmnerflmngmachmqthe cbmbmk for controlling the operation of said chamber tion with a measuring chamber 0! means or lowering and discharging means, and a control feeding substanes into said measuring chamber valve operatively connected to the lower open a substance excess control chamber communicat: end of, said discharge m mg with said mm chamber means for my 8. In a container filling machine, the combinacharm the Woes from 'said measuring tion with a measuring chamber, of means for chamber and mam responsive toflmng said com feeding substances into said measuring chamber,

trol chaxhber for meeting the operation of said no means for discharging the substances from said memg 1 bet-Mam a chamber, a discharge housing extending from a 2 In a cdntainer mung machine the ombma and communicating with said measuring chama ber, means for lowering said chamber and dis-' with mews means for charge housing proximate to the container to feeding substances said measuring e be filled during the operation of said dischargmem the 3mm and ing means, means responsive to filllng said chamchaplberexcess substance chamber comm ber jor controlling the operation of said chamcatinglwith Bald feeding 5nd means in her lowering, and dischargi'ng means, a control said excess substame W" to the valve operatively connected tothe Ioweropen end excess Substances .intmduced d 109m!!! of said discharge housing, andv means for openmeans after filling said measuring cham f ing said control valve when saidnormally closed contmmng e Operation 01 said chamber discharge housing approaches the lower end oi charging means. its travel proximate-to the container to be filled.

3; In a container filling machine, the combina- 9. In a container filling machine, the combination withan adjustable in chamber, of '75 tion with a measuring chamber, oi'means for feeding substances into said measuring chamber, means for discharging the substances from said chamber, a discharge housing extending from and communicating with said measuring chamber, means for lowering said chamber and discharge housing proximate to the container to be filled during the operation of said discharging means, means responsive to filling said chamber for controlling the operation of said chamber lowering and discharging means, a control valve operatively connected to the lower open end of said discharge housing, and cam means responsive to the descent of said measuring chamber and discharge housing for opening said control valve when said normally closed discharge housing approaches the lower end of its travel proximate to the container to be filled.

10. In a container filling machine, the combination with a measuring chamber, of means for feeding substances into said measuring chamber, meansfor discharging the substances from said chamber, a discharge housing extending from and communicating with said measuring chamber, means for lowering said chamber and discharge housing proximate to the container to be filled during the operation of said discharging means, means for receiving the excess substances responsive to filling said chamber for controlling the operation of said chamber lowering and discharging means, a control valve operatively connected to the lower open end of said discharge housing, and cam means responsive to the descent of said measuring chamber and discharge housing for opening said control valve when said normally closed discharge housing approaches the lower end of its travel proximate to the con- I tainer to be filled.

11. In a container filling machine, the combination with an adjustable measuring chamber,

' of means for feeding substances into said adjustable measuring chamber, piston means in said eratively connected to the lower open end. of n said discharge'housingand cam means responsive to the descent of said measuring chamber and discharge housing for opening said control valve when said normally closed discharge housing approaches the lower end of its travel proximate to the container to be filled.

12. In a container filling machine, the combination with an adjustable measuring chamber,

of means for feeding substances into said adjustable measuring chamber, piston means in said chamber for discharging the substances from said chamber, a discharge housing extending from and communicating with said measuring chamber, means for lowering said chamber and discharge housing proximate to the container to be filled during the operation of said discharging means, pressure means communicating'with said feeding means for receiving the excess substances responsive to filling said chamber for 7 controlling the operation of said chamber lowering and dischargingmeans, a control valve operatively connected to the lower open end of said asaacie to the descent of said measuring chamber and discharge housing for opening said control valve when said normally closed discharge housing approaches the lower end of its travel proximate to the container to be filled.

13. In a container filling machine, the combination with an adjustable measuring chamber, of means for feeding substances into said adjustable measuring chamber, piston means in said chamber for discharging the substances from said chamber, a discharge housing extending from and communicating with said measuring cham-' ber, means for lowering-said chamber and dis charge housing proximate to the container to 14. In a container filling machine, the combi-,

nation with a measuring chamber, of means for feeding substances into said measuring chamber, a piston in said measuring chamber, a piston rod for guiding said piston, an adjustable stop in said chamber to limit the displacement of said piston responsive to feeding substances into said measuring chamber, a supplemental chamber communicating with said feeding means for receiving the excess substance after said piston has reached its displacement controlled by said adjustable stop, and means for displacing said piston and measuring chamber to discharge the substances into a container disposed in the path thereof.

, 15. In a container filling machine, the combination with a measuring chamber, of means for uring chamber to discharge the substances into a container disposed in the path thereof, and a discharge control valve operatively connected to said -measuring chamber.

16. In a container filling machine, the combination with a measuring chamber, of means for feeding substances into said measuring chamber, a piston in said measuring chamber, a piston rod for guiding said piston, an adjustable stop ,in said chamber to limit the displacement of said piston responsive to feeding substances into said measuring chamber, a supplemental chamber communicating with said feeding means for receiving the excess substance after said piston has reached its displacement controlled by said adjustable stop, means for displacing said piston o and measuring chamber to, discharge the substances into a container disposed in the path thereof, a discharge control valve operatively connected to said measuring chamber, and means responsive to the displacement of said measuring discharge housing, and cam means responsive 1 chamber to operate said control valve.

17. In a container filling machine, the combination with a measurin chamber, of means for feeding substances into said measuring chamber,

a container disposed in the path thereof, a discharge control valve operatively connected to said measuring chamber, means responsive to the displacement of said measuring chamber to operate said control valve, and means responsive to filling said measuring chamber for controlling the operation of said piston and chamber displacing means.

18. In a container filling machine, the combination with a measuring chamber, of means for feeding substances into said measuring chamber, a piston in said measuring chamber, a piston rod for guiding said piston, an adjustable stop in said chamber. to limit the displacement oi said piston responsive to feeding substances into said measuring chamber, a supplemental chamber communicating with said feeding means for receiving the excess substance after said piston has reached its displacement controlled by said adjustable stop, means for displacing said piston and measuring chamber to discharge the substances into a container disposed in the path thereof, a discharge control valve operatively connected tosaid measuring chamber, means responsive to the displacement of said measuring chamber to operate said control valve, and means responsive to the excess substance in said supplemental chamber for controlling the operation of said piston and chamber displacing means.

19. In a container filling machine, the combination with a measuring chamber, of a piston in said measuring chamber for limiting the introduction into and eilfecting the discharge of substances from said measuring chamber, adjustable means associated with said measuring chamber to serve as a stop for said piston in admitting substances into said measuring chamber, a supplemental chamber communicating with said feeding means for receiving the excess substance after said piston has reached its displacement controlled by said adjustable stop, and means responsive to filling of said measuring chamber for operating said piston to discharge the substances from said measuring chamber.

20. In a container filling machine, the combination with a measuring chamber, of a piston in said measuring chamber for limiting the introduction into and effecting the discharge of substances from said measuring chamber, adjustable means associated with said measuring chamber to serve as a stop 'for said piston in admitting substances into said measuring chamber, another chamber communicating with said measuring chamber for receiving the excess substances after said measuring chamber is lined, and means responsive to filling of said excess substance chamber for operating said piston to discharge the substances from said measuring chamber.

CHARLES DOERING. HENRY DOERING. BERT J. BKOGLUND. ERIC W. ANDERSON.

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