US1091482A - Computing and printing machine. - Google Patents

Description

' F. M. CARROLL. COMPUTING AND PRINTING MACHINE.

APPLICATION FILED OCT. 26,1906.

Patented Mar. 31, 1914.

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P. M. CARROLL.

COMPUTING AND PRINTING MACHINE.

APPLICATION TILED OCT. 26, 1906.

Patented Mar. 31, 1914.

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APPLICATION FILED OCT. 26, 1906.

Patented Mar. 31, 1914.

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Patented Mar. 31, 1914.

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APPLICATION FILED OCT. 26, 1906.

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COMPUTING AND PRINTING MACHINE.

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F. M. CARROLL.

COMPUTING AND PRINTING MACHINE.

APPLICATION FILED 0OT.26, 1906. 1,091,482. Patented Mar. 31, 1914.

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F. M. CARROLL.

COMPUTING AND PRINTING MACHINE.

APPLICATION FILED OCT. 26, 1906.

' Patented Mar. 31, 1914.

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P. M. CARROLL.

COMPUTING AND PRINTING MACHINE.

APPLICATION FILED OCT. 26, 1906.

Patented Mar. 31, 1914.

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COMPUTING AND PRINTING MACHINE.

APPLICATION FILED OCT. 26, 1906.

Patented Mar. 31, 1914.

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P. M. CARROLL.

COMPUTING AND PRINTING MACHINE.

APPLICATION FILED 0012s, 1906.

1,091,482. Patented Mar.31, 1914.

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both classes.

' subtraction UNITED STATES PATENT OFFICE.

FRED MERCHANT CARROLL, OENEW HAVEN, CONNECTICUT, ASSIGNOR, BY MESNE 'ASSIGNMENTS,, TO THE WHITE ADDING MACHINE COMPANY, OF NEW HAVEN,

CONNECTICUT, A CORPORATION OF CONNECTICUT.

oo'I rUTING" AND PRINTING MACHINE.

Specification of Letters Patent.

Patented Mar. 31, 1914.

Application filed October '26, 1906. Serial No. 340,636.

- To all whom. it may concern:

Be it known that I, FRED M. CARROLL, a.

Machines, of which the following is a full,

clear, and exact description.v

My invention relates to computing andprinting machines, and has for its object to provide in such machines a new and improved mechanism for making printed records having distinguishing characteristics.

It further has for its object to provide means for changing the position of the ribbon whenever theadjustment of the machine is changed from addition position to osition, so that items of the two classes addition and subtraction) may be printed by portions of the ribbon having different colors or characteristics. Items of the two classes will, therefore, have distinguishing characteristics so as to be readlly identified upon the permanent record.

A further object of my invention is to provide means for printing items of two classes (addition and subtraction) not only in different colors but in conjunction with other distinguishing characteristlcs, such, for instance, as a distinguishing mark or marks placed adjacent to items of one or; This results not only in in creasing the distinguishing characteristics; when a two'c'olored ribbon is used, but alsoj enables distinguishing characteristics to be. readily impressed when a two colored rib-j the same.

bon is not available.

Afurther object of' my invention is to provide means for printing a sign indicat-j ing totals and to employ to some extent for the ribbon changing, the elements which are employed for bringing the total-distinguish- 1 ing mark into printing line. The printing of the addition and subtraction items in difl ferent colors is very desirable since it makes it unmistakable at a glance to which class any items belong, the difierence being even more conspicuous than if the subtracted. items were in the-same color as the other' for bringing the parts into proper relation -for total printing and other associated details. Fig. 9 is a plan view of segregated the usual business custom to use red for.

credits, and by the use of a'black and red ribbon, the permanent record of my machine can be'made to conform to this business custom.

The following is a description of an embodlmentof my invention as applied to the machine shown and described in Patent No. 789,409, granted the 9th of May, 1905, reference being bad to the accompanying drawings, 111 which parts shown and described in the patent above mentioned are referred to by the reference -numerals as are used in said patent.

In these drawings Figure 1 is a front elevation of a machine embodying my invention. Fig. 2 is a right-hand side elevation. Fig. 2 is a detail. Fig. 3 is a left-hand side elevation. Fig. 4 is a vertical section from front to rear of the machine. Fig. 4 is a plan view of a detail. Fig. 4 is a vertical section of parts shown in said detail and associated parts. Fig. 5 is a view of the spring-drum, controller, winding segment, and associated parts, looking from the right; Fig. 5 is a detail of the controller; Fig. 5" is a pivoted tripping plate on the controller; Fig. 5 is a section of the springdrum. Fig. 6 is a right-hand view ofthe distributing cam shaft and associated gearing. Fig. 6 is a plan view of the same. Fig. (i is a view of the item-segment cradleliftinlg mechanism. Fig. 6 is a view showing t erelation of the rack-bars, item-segment and accumulating wheels. Fig. 6 is a view of the right-hand cradle-lifting cam. Fig. 7 is a plan view of the accumulating wheel. Fig. 7 is a sectional view of two of said wheels. Fig. 7 is a side elevation of Fig. 7 is a plan view of the carrying wheels and certain cooperating parts. F igs; 7 7*, 7, 7?, 7, 7, 7 7 are certain details of the carrying mechanism. Figs. 7', 7", are details of the totalizing mechanism. Fig. 8 shows the relation of the totalizing key-operating levers and interlocks controlled thereby. Fig. 8* is a front view of an alining device operated by the totalizing key. Fig. 8 is a side elevation showing in detail the relations of the rack-bars and the totalizing-key rack-bar interlock. Fig. 8. is a detail showing means partsin their operative relations by which my invention is incorporated in the ,ma-

Fig. 9 is aldetail view of one por- Fig. 10 is a side elevation of the parts shown in Fig. 9. Fig. 10 shows a record made by the machine embodying m invention, dots being used to indicate a di ferent color from that indicated by the solid lines. Fig. 11 is a rear ,view of the typewheels, ribbon and certain associated parts segre ated from the rest of the machine.

Re erring more particularly to the drawings, (Figs. 9, 10, 11), 602,'1s a movable platen adapted to carry paper on which the record is to be made. 600 are numeral printing type members mounted side by side and rotatable about the same axis. A is a bichrome ribbon carried by projections A on two uprights B B, mova 1c in vertical bearings in the machine frame, and normally drawn into their lower posit on by the springs b. C C are two arms rigidly connected together with a rock shaft D and engaging the uprights B B carrying the ribbon. The rock shaft is normally held in retracted position by the springs Q is a projection upon the arm O, whlch 1s enga ed by the step E carried by a lmk F, which is pivoted to a disk G forming part of a rotating member G, preferably a type member, mounted on the same axis with the numeral-printing type members 600. This rotatable member G is moved by the lever H carried by the rock shaft I journaled in the frame and is normally held in its imtial position by the springs I. The rock shaft I has a depending arm J to the lower end of which is connected a link K. This link K has a downward projection L, which.

tion. In order that the parts may be nor-' mally held in addition position, I provide a spring N, which, tends to rotate the shaft until the shoulder P engages the stop 0, Fig. 9, which position corresponds to the ad ition-position. When the shaft N is rotated in the opposite direction until the shoulder P engages the stop O, the machine is adjusted for subtraction. This rotation of the shaft N is-brought about by the manual operation of the crank N mounted on said shaft and is limited by two stops 1:. 91.. When the shaft N is in one extreme position, the machine is adjusted for addition. When in the other extreme position, the machine is adjusted for subtraction. Whenever the crank is released, the adjustment of the parts is automatically changed from subtraction position to addition position. When it is in the addition position, the step E is lowered and the ribbon .A is drawn downward. When, however, the shaft is'turned so as to be in subtraction position, the pin M engages the projection L upon the link K and moves the link and the connecting parts, so that the step E is raised into engagement with the pro ection C lifting the same and the arms C C, and also the rlbbon so as to bring the lower portion of the ribbon into the printing line. The upper and lower portions of the ribbon being of different colors, the addition .and subtraction items will be printed in different colors as indicated by the dots in Fig. 10. The shaft N has a worm engaging a screw thread R in the stationary frame S, and as it rotates is' thereby moved longitudinally to a small extent. This movement shifts the lever T pivoted at It, so that its inner end shifts the rod 54 which in turn shifts the gear 503, whose position determines whether the machine shall operate for additionor for subtraction.

The link K is provided with an elongated slot '70, in which works a pin to on the upper end of the lever U. This lever U is moved by the spring-retracted totalizing key 863 and controls the total printing, as described in my prior atent.- The slotk is of such length that t e pin u on the upper end of the lever U does not'engage the outer end of the slot is, so as to move the link K until the totalizing key is near the end of its inward throw. At this time, engagement takes place and the link K is moved slightly, re

sulting in a slight movement of the type also has a distinguishing mark printed opposite it. This isof advantage in the machine, since in case bichrome ribbons are not available, the machine with an ordinary ribbon will distinguish between added and subtracted items. When a bichrome ribbon is used, it may be divided longitudinally into two parts, each part being of a different color.

Referring more particularly to the complete machine, there are a set of numeral 177, 2, 3, 47,, 5, 6, 7, 8 and 9 (Figs. 1, 2, 3 and 4), which I use in setting up the items. There are also two lower keys, the right hand one being a forward space-key and also serving as a zerokey, while the left hand one is a back space-key (see Fig. 1). There are also a totalizing-key T and other keys which it is unnecessary to mention.

Referring to the mechanism, 1 and 2 are the right and left outside members of the frame of the machine. 3 and 4 are the right and left inside members of the frame (Fig. 1). In the outside members 1 and '2 is mounted a driving shaft 5, having upon its right hand end a main driving gear 6, wit-h w ich engage the gears 7 and 8 for transmitting motion to different parts of the machine for various purposes to be hereinafter described. 7

The main driving shaft 5 carries upon its left hand end a spring casing or drum 9 containing a driving spring 10 and having upon a flange in its periphery two opposite notches 11-11, with which aprojection 12 on the controller 13 engages. The shaft of this controller has one end mounted in the left hand outside frame 2 and its other end is mounted in the left hand inner frame 4 and is normally held in contact with the drum by a spring 13 as hereinafter described. When the controller 13 is moved so as to withdraw the projection 12 from one of the notches 11 upon the spring drum, the

spring 10 causes the main shaft 5 to revolve,

until, the projection 12 engages with the other notch 11. A pin 14 (Figs. 3 and 5) upon the spring casing engages with a rearwardly projecting arm 15 upon the controller shaft at such a time as to positively force the projection 12 downward so as to cause it to engage with the next succeeding notch 11. The spring 10 within the casing has its outer end secured to the spring casing by a pin 10 at its inner end connected with an inwardly extending boss 10* upon the drum head 16. This drum head carries two pawls 17-17 which by means of springs 18 are caused to engage with notches 19-19 upon a movable ratchet wheel 20, also mounted upon the shaft 5. This movable ratchet wheel is formed with a gear 21, with which meshes a curved rack 22 (Figs. 3 and 5) mounted upon the shaft 23, which is journaled in the two outside members of the frame. The rack 22 is retracted to its normal position by a spring 24. The rack 22 is rigidly attached to the shaft 23 to the right hand end of which is connected an operating handle 26. The drum-head 16 has upon it ratchet teeth 16 engaged by a laterally projecting stud 27 on a pawl 27, which by a partial throw of the rack 22 prevents the drum-head from turning backward. It also carries two lugs 16, which upona complete throw of the curved rack 22 engage with the end of the pawl 27, to hold the drum-head in position. As soon as the curved rack 22 is released, it is at once retracted by the spring 24. After a complete revolution has been made, and the curved rack 22 has been retracted the next forward movement of the curved rack first causes one of the lugs 16? of the drum-head to engage andlift the tripping plate 28,

which is pivoted to the end of the curved arm 29 carried by the controller 13. vA furdistributing ther movement of the curved rack 22 resulting in a further movement of the lug 16 moves the controllerso as to release the projection 12 from the notch 11 of the spring drum, permitting the drum to revolve under the action of the. main spring. The tripping plate 28 is retracted by a spring 30 and the parts are so proportioned that as soon as the lug 16- has moved sufficiently tov cause the tripping plate to move the controller so as to release the projection 12 from the notch 11, the point of thetripping plate will escape the lug 16", so that it can not be again engaged thereby so as to again.

trip the controller until the handle 26 has main spring and cause the next lug 16" to engage the lower sides of the tripping plate 28 (see Figs. 3 and 5).

The gear 7 is rigidly mounted upon a shaft 31 journaled in the right hand inner frame and the right hand outer frame. Upon this shaft are also mounted two mutilated gears 32 and 33 and a complete gear 34 (Figs. 1, 2 and 6). The complete gear 34 meshes with the inner member of a straddle-gear 35 mounted upon the shaft 54 journaled in the inner frames 3 and 4. This gear straddles a cam disk 39. The outer member of the straddle gear 35 engages with a gear 38, which is mounted upon the cam disk 39, which is rigidly connected to another cam disk 40, .for the purpose hereinafter described. The left hand mutilated gear 32 transmits motion 'to a small gear 41, having a stop surface, and mounted upon the shaft 42, journaled in the right hand inner and 'outer frames. The right hand gear 33 engages with a gear 43 mounted upon its stud 44 carried by the right hand inner frame andhaving a stop surface 45. This gear 43 through a connection rod 45, rock shaft 47 and rod 48 transmits a reciprocating motion to a cradle 49 carrying the axially mounted item devices or circuits 50, as hereinafter described.

I tem segment mechanism.,-The item-segments 50, above referred to, Figs. 1 and 4, consist of a series of nine toothed segments axially mounted so as torevolve independentlyupon a shaft 51 of the cradle 49, which is carried at the extremities of the arms of the yoke 53. This yoke is mounted so as to be free to turn upon the shaft 54 carried by the two inner frame members. The itemsegments 50, mounted upon the shaft 51, have disk-like extensions cut away at 55 and 56, so as to each have two spokes connecting with the central bearing portion of the hub 57, Fig. 6. Through the openings 55 of the series of item-segments 50 passes a curved frame 58, supported at each extremity by circular end pieces which are rigidly mounted upon the shaft 51, the whole constituting a cradle for the item-segments.

The curved frame 58 carries two series of projections 58" and 58', which form grooves in which the inner surfaces of the rims of the several item-segments 50 bear and by which the item-segments are guided and held against lateral movement, so as not to come into too great frictional contact with one another. The circular end pieces of the cradle 49 also carry a universal locking bar or yoke 60 supported at each end by arms pivoted to the end pieces at 61. This u n1- versal locking bar carries a rod 62, wh1ch engages the teeth 63 on the inner periphery of each of the item-segments 50, the space 56 in the item-segments affording sufiicient room for the play of the said locking bar. The end 64 of this locking bar passes through a slot in the right hand circular end piece of the cradle 49, on which end is a friction roller 62*, Fig. 6 which is there engaged by the cam surface 65 of the left hand face of the cam disk 40, Figs. 6 6", and so actuated thereby as to be at times brought into engagement with the teeth 63 of the Itemsegments and disengaged therefrom, as Wlll be hereinafter described. The left hand circular disk of the cradle 49 is formed with a boss 66,- Figs. 3 and 6 to which is pivotally connected one end of a connecting link 48, above referred to.

' Mechanism f01' positioning the item-segments.-The item-segments50 each have a plain circumferential extension 67, upon the upper front portion of whose periphery is preferably a series of numerals from 0 to 9 i 1, 2, 3, 4:, 57,, 6, 7: 8 and 9, one of which is visible through a side opening in the face plate 67*, Figs. 4 and 6. On the lower back portion of the periphery of each item-segment, there is a blank space 68. The lower front peripheral portion of each item-segment carries a series of teeth 69, which engage with a corresponding number of teeth 70 upon the sliding item devices or rack-bars 71, Figs. 5, 6, 6 and 6, there being one sliding rack-bar for each item-segment. These sliding rackbars are supported in spacing notches 72 upon the cross pieces 73 and 74 supported by the inner frame, and are also guided and supported attheir upper edges by spacing notches 75 in the cross bar 76, likewise'connected to the inner frame members. Each of these rack-bars 71 is provided with a retracting spring 77, the forward end of which is connected to the forward end of the rackbar and the rear end of which is connected to a cross-bar 78, carried by the inner frame. Each of the rack-bars 71 carries-a pawl 79, which is normally held in depressed position, as shown by the spring 80, so as to engage against a stop surface or abutment 81 of a table 82. In the operation of the machine some or all of these pawls 79 are released by the movement of the keys allowing the rack-bar 71 to be drawn backward by their respective springs 77 until stopped by one of the series of vertically movable stops 110, Figs. 4 and 4", the roper one of which is brought into position y the manipulation of the numeral operating keys and the automatic action of the column-selecting devices, to be hereinafter described.

The operating keys of the machine, Fig. 1, may be divided into two groupsthe upper group, which corresponds to the numerals to be set up and are numbered 1, 4 2 17 ca 3 ,7, 4e 4 v, c 5 a, t 6 7 4: 7 77, cc 8 n and 9, and the lower group of keys, consisting of the" forward space key, the back space key, the totalizing key T and other keys. The forward space key serves also as the zero key. Each of the numeral key levers 100 is pivoted on a bar 101 mounted in the key frame 102, secured to the front of the main frame, Fig. 4. Each numeral key is provided with a downward projection 103, to which is pivoted the forward end of the connecting rod 104, the other end of the connecting rod being pivoted to the lug 105 upon a corresponding lifter, there being one connecting rod and lifter for each numeral key. These lifters each consist of a crossbar 107, supported by two pivots 108, to the inner frame and provided with a downwardly projecting lug 105, to which the connecting rod 104 is connected. The connecting rod 104 carries a sto 104 against which presses one end of a cofied spring 104 the other end engaging with an abutment 104 in such a manner that whenever a numeral key is depressed and released, the spring 104 returns it and the corresponding rod to normal position. Co-acting with the lifters are a plurality of series of vertically moving stops 110, there being for item setting purposes the same number of series of these stops as there are item-segments 50 and rackbars 71 and in addition, two series which are used in printing dates. There are nine stops 110 in each series, corresponding to the 4 1 ,7 C 2 77, 3 77 4 4: 7, C 5 77, t 6 ,7, 7, 877 and 9. There is for each series of stops 110 a sliding plate 111, having recesses 112, Figs. 4 and 4", through which the lower ends of these stops 110 pass, the downward movements being limited by the projections 110 on the stops. These plates 111 are pressed forward by springs 111 bearing against their rear ends and are each connected by a connecting rod 113 with the depending arm of one of a series of dogs 114, Figs. 4 and 4 mounted upon the shaft 115, journaled in a forward selector-shaft frame 116. The upper arms of the dogs 114 are in post tion to be successively engaged by the teeth 117 on the selector-shaft 118, carried by the selector-shaft frame 116, as shown in Fig. 4. When a tooth 117 on the selector-shaft 118 engages with the upper arm of one of the inner rame and servirgg dogsl 114 it moves it slightly downward, thereby forcing the lower end rearward and causing the corresponding sliding plate 111,

carrying the lower ends of the vertically movable stops 110, to move rearwardly that stop, so that its upper end rises abovethe plate or stop table 82 through holes 120 therein, which act as upper guides. The

stops 110 are each provided with a shoulder- 110, upon which normally rest pins 121, carried by a stop lock plate 122, pressed forward by a spring 122. This stop lock plate 122 has a notch 123 engaging with the upper ed of a cross bar 124, carried by the to prevent the forward movement of an stop lock plate 122 so long as it is in its depressedposition. This stop lock plate has its rear end mounted upon one end of the equalizer 125, Figs. 4, 4' and 4", and its forward end carried by one end of an equalizer 126, the lower arms of these equalizers being connected by an equalizer, rod 127, the purpose being to hold the stop lock plate 122 always parallel to the same plane. The springs 128 bearing against the lower ends of the rearequalizer tend to keep the stop lock plates depressed.

Whenever one of the stops 110 is forced upward by its lifter, the shoulder 110 engages with the pin 121 corresponding thereto and lifts the entire stop lock plate,so that all the other pins 121 are raised above projections 110* of the stops and also so that the stop lock plate is disengaged from the looking face of the cross-bar 124, as shown in Fig. 4. At the same time the upper face or projection 129 upon the stop lock plate engages with the corresponding awl 79 and moves it out of contact with t e abutment 81 on the edge of the table 82. This permits the corresponding rack-bar 71 to be moved rearwardly under the influence of its spring 77 until it engages with the stop 110, which has been elevated, as shown in dotted lines, Figs. 4 and 4". The rack-bar is thereby retraoted a distance corresponding to the numeral key depressed and the item-segment 50 meshing therewith is revolved a corresponding distance. I V

As above stated, the series of stops which is in position to be actuated by the lifters is determined by the position of the selectorshaft 118. Among the many advantages of this construction is the uniformity of action of all the numeral keys the touch and throw being substantially the same in all cases. After movement of the hand lever 26, Fi 2, which brings themachine to its norma position readyfor the setting up of an item on the item-segments 50, the selector-shaft 118 stands in a position repre-' sented. by a spot'upon the'traveling indicator 130, Figs. 1 and 4, consisting of a drum carr ing series of spots arranged in a spiral. T is osition is determined b 'a stationar in icator, s0-called 131,1 1 .and 2, w ich may be manually set up by a knob 132 through gears 132", 132", 133, 133,

to determine the column in which the first numeral is to be set up. This is accomplished by this knob and the cylinder 133, connected to the gear 133 and having spirally arranged depressions 134, adapted to take the nose 135, of any one of a series of stop members or dogs 136 movably mounted on a shaft 137, carried b the selectorshaft and so located that t eir rearward and downward ends 138 fall into the ath of corresponding teeth of the selector-s aft 118, Fig. 4, thus constituting a variable stop 7 for the selector-shaft. The spiral arrangeinent of the depression 134 on said drum allows the upper end of only one of these dogs to enter a depression at a time, and hence allows the lower end of only one of these dogs to come into the path of the tooth' of the selector-shaft at any given time. The normal position of this depressed stop 136 is therefore such as to interrupt the motion of the selector-shaft 118 which thus determines the initial position, or the position of the initial figure in the item. This is indicated to the eye by the traveling indicator 130,

which is geared to'the selector-shaft 118, by v the segmental-gear 139 and moves synchronously therewith. To disengage the selectorshaft 118 fromthe dog 136, which determines its initial position at the beginning of an operation of setting an item, I provide a yoke 140, loosely mounted on the shaft 137 and engaging rearward projections 142 on all the key-bars and also engaging a forward projection 143 on the'upper part of any do whose nose has entered one of the splral depressions of the stationary indicating drum 131. When the first key is depressed, this yoke throws the rearwardly projecting member of the depressed dog 136 out of engagement with'the tooth on the selector-shaft 118 allowing the selectorshaft to come under the control of an escapement consisting of a ratchet wheel 144 and pallet 145, Fig. 2, the latter consisting of two pivoted members and a restraining spring 145". The pallet is connected by a link 146 with a umversal yoke or bar 146 and pivoted at 1246 and connected to the escapement, which yoke or bar 146 is engaged and moved backward by the downward projections 103 on the numeral keys and also on the zero key. The universal bar is retracted by a spring 146. -Every backward sented by one tooth of the said ratchet 144,

it being impelled by actuating segmental skeleton gear-wheel 139, Fig. 3, mounted on a stud on the selector frame and meshing therewith, and a spring 139, one end of which is connected with said wheel, while the other is connected to a stationary partof the frame. The spring 139 is put under tension when the selector-shaft 118 is reset to its full limit of backward motion, as

hereinafter described. The resetting of the selector-shaft to its full limit is necessary to provide for any large number that might be desirable to set up on the item-segment 50. Provided, however, the numbers to be set up are small, the selector-shaft and its corresponding indicating-drum return automatically to the position previously determined by the stationary indicator-drum 133 and its stop-dogs 136. To avoid having to operate the spacing key through the intermediate positions between the extreme left position and the initial figure in the items to be set up, I provide on the right hand end of the selector-shaft 118 a separate and extra proj'ection 147, Fig. 2, not in the sliding rack series which raises a rearwardly projecting arm'148 on the hub 149, which in turn carries a fiat spring 150 so adjusted as to engage a projecting arm 151' on the pivoted releasing member 152 of the escapement pallet145, so that the extension 151 being thereby depressed, the fiat spring 150, put into tension by theturning of the hub 149, snaps into engagement'with the notch 152 on the extension 151 of the releasing member of the escapement pallet 145, Fig. 2, and holds it out of engagement with the ratchet wheel 144. The tension of the actuating spring 139, at the left, Fig. 3, revolves the selector-shaft 118 until it comes to a stop against the stop dog 136, whose nose is in a depression in the indicator drum. To prevent the escapement from working in resetting the selector, I utilize the same forward projection 151 on the releasing me1nber of the escapement. Under these conditions, of course, the selector-shaft 118 in being reset goes into its extreme left-hand position but the lug 147 at the right-hand end, Fig. 2 then comes into useful play. throwing down the spring catch or stop 150 into the path of the forward projection 151 and holding the releasing member 152 of the escapement out of engagement until the spring catch/is withdrawn upon the operation of a key, permitting the releasing member to again come into engagement with the ratchet-wheel.

In order to cause the releasing member 152 of the escapement to come into contact with the spring-catch 150, whose function it is to hold the releasing member 152 out of engagement with the ratchet-wheel, I pro-- vide a finger 160, Figs. 2, 2, projecting from r releasing member 152 to allow the spring detent 150 to fall into the notch 152, provided for it, thereby holding the releasing member 152 out of engagement with the ratchet 144.. The pivoted member 161 is provided with a spring 162 so as to yield and permit the tooth 160 to pass freely in a reverse direction.

Spacing 7vey.The right hand key of the lower bank constitutes a space key and is also the zero key, Figs. 1 and 2. Its lever 100 is mounted upon the same shaft 101 as that which carries the levers of the numeral keys and is connected by a link 100 with the lever 100, pivoted on; the shaft 153. The'lever 100 of this space key engages with the universal bar 146, the same as do the lovers of the numeral keys, and also with the swinging locking yoke 163, so as to prevent other keys being depressed when it is partially depressed and so as not to be capable of being depressed when other keys are partially depressed. It also has a forward projection the same as on the numeral keys which engages with the universal yoke 140, which serves to withdraw the dog 136, blocking the selector-shaft 118, the upper nose of which is within one of the recesses 134 inthe column-indicating drum, thereby performing all the spacing functions of a numeral key, though not acting on any stationary item devices.

Resetting stops before completion of 'a- 0- 2 cZe.The' arrangement of the parts as described allows for the immediate repositioning of the stop members 110, Fig. 4, of the rack-controlling devices immediately after the beginning of a cycle of the machine, whereby another iteinmay, in effect, be potentially set up on the stop members 110 before the rack-bars 71 have been reset, allowing for greater rapidity in operation, it being understood that the rack-bars 71 are reset at the very close of the cycle, it being necessary that they should be retained in the positions in which they were originally set up until reengaged by the item-segments near the end of the cycle. As before stated, this retention is accomplished by the pawls 210 engaging with the notches on their under surfaces. The resetting rod 196, Fig. 2, through the medium of its bell crank 193 when operated acts upon the devices for resettin the stop lock plates 122 and stops 110 as wel as for re ositioning the rac -bars 71, bringin the w ole into normal position ready fort e setting up of a new item. The

engaging arm of the bell crank 193 referred to enga ing both rock-shaft arm 192; which resets t e selector-shaft as heretofore described, and also engaging'the forward arm or the rack-bar resetting bell crank 200 which acting through the horizontal beam 202 and lever 204 throws the T-lever 206 and itshead 207; forward, carrying the rackbars 71 into position by its engagement with lugs 208. It is operated 'in the same manner by the lugs 201 upon the main driving gears, Fig. 2, engaging the lever 200, and the downward and rearward projecting lug 221 on the same bell crank 193, engaging the projection 220 on the right hand bracket of. the frame 215", which is normally operated by the curved arm 215 engaging with the lugs 201 upon the main driving gear 6 moving the lever 214 so as to release the stoplock members 122.

It will be seen that after a rack-bar 71 has been retracted by its spring and its pawl 79 rests against a stop 110, Fig. 4", the yoke 212 being released by the lug 213 on the spring drum at the beginning of a cycle of the machine, Fig. 5, will allow the spring-pressed detents 210 to enter the notches 209 upon the-bars 71, and at the same time the curved finger 215 engagin :1 lug 201 on the main driving gear will t row down the support- Y the several numeral keys will now raise into active position corresponding stops 110; but

they will not come into service until after the rack-bars 71 have been brought forward at the close of a cycle. When a stop 110 is raised, the upper and forward faces 129. of the stop lock plate 122, being in the same plane with the top of the table 82, over which the rack-bar pawls 79 pass, will then prevent the corresponding rack-bar pawl 79 fromengaging the abutment 81, andwhen released by the retraction of the T-lever 206 at the end of a cycle,.it will fall back against the stop 110-thus positioned, giving a new position to the corresponding item-segment 50. If the stop 110 so raised during the cycle of the machine should be in front of the corresponding pawl 79, the pawl in being brought forward by its rack-bar 71 will drag over the'top of the stop, which 7 will not at .all interfere with .its correct working. Thus .at the end of a cycle a second item may be 'wholly or artiall set up on the item-se ments 50, it being tiius possible to keep t e machine in constant rotation. Y

' Aocwnuatz'ng mechanism-After an item has been set up on the item-segments 50 a movement of the actuating crank arm 26 or the foot lever, as the case may be, releases the spring drum 9 from the control of the controller 13, communicating motion to the main driving gear 6 at the right of the machine to the distributer sleeve 31, Fi 6, 6, by a direct connection with the pinlon 7 at the right hand end, which is fixedly mounted upon this sleeve, and to a mutilated gear 33, rigidly mounted thereon and engaging a corresponding gear 43, having a stop face designed in its rotation to communicate an oscillatin motion to the cradle 49, which supports t e item-segments. A small mutilated gear 32 is also rigidly mounted on the distributing sleeve 31 and communicates with a stop-face pinion 41, which communicatin with another pinion revolves the carrying s aft 260 one complete revolution for every cycle of the machine. The distribut: ing sleeve 31 also carries a plain spur gear 34, meshing with an intermediate straddle gear 35 beneath it, having the cam 232 I ormed on its'inner face, which operates on .bars at the proper time. This straddle gear 35 is so formed as to have a clearance space for the outer cam disk 39, carried by the item segment shaft, upon which is mounted a driving gear 38, meshing with the outer member of the straddle gear 35 and through the means of the lifting cams 39 on ,its inside face communicating an upward and rearward motion to-the body of item-segmentsin case the operation is subtraction. A similar cam disk 40, fixedly mounted with it and having a cam surface 40, provides a similar motion to the body of item wheels 50 in case of addition. The connection between the cams 39? and 40*" and the friction rollers 390, Figs. 6 6", and a sliding abutment is formed by the upturned lower end 392 of an arm 393,Figs. 6, 6 9, 10, depending from the slidin shaft 54, upon which the item-segment yo e 53 is pivoted, said arm of being engaged y e abutment 392 on idl but being capable.

. engaging therewith and actuated by a shaft N Figs. 9 and 10. This shaft carries a worm R, which engages a screw thread in the frameand can be rotated by the handle N which rotation causes it to move longitudinally. Thisshifts the pinion 503, hereinafter described. The inner face of the broader of the two cam disks 39 and 40 mounted upon the item-segment shaft, has formed in it also a cam groove 65 in which operates a friction roller .62, mounted,on the outer end of the bar 64,- of the swinging yoke forlocking the item segments, as before referred to. This yoke 60, as before described, is supported by the outer flanges of the oscillating cradle and provided with a locking bar 62, adapted to engage the in ternal teeth in the apertures within the item-segments. These teeth are ten in number, corresponding to the figures O to 9 indicated on theperiphery of the item-segments. The throwing out of the controller 13,-Fig. 3, by the action of the hand lever 26, Fig. 2, sets in motion the main driving gear 6, which in turn revolves the dlstributer sleeve'31 and rotates through the. intermediate gears first the item-segment, lifting cam disks 39 and 40 by the means of their attached gear. The intermediate gear 35 by means of its cam 232 immediately throws down the rack-bar, locking yoke 230 into the teeth on the upper side of the rack-v bars 71, securely holding the rack-bars 71 in position until released by a further movement of the cam 232. At one and the same. time the'cam on the inner surface of the cam 40 and adjacent to the item-segments 50 throws its engaging yoke 60 into the internal'teeth 63 of the item-segments securing them in their set positions. These two yokes,

the item-segment yoke 60 and the rack-bar yoke 230, operate simultaneously and before the item-segments 50-are lifted out of engagement with the rack-bars 71 and remain in engagement until the item-segments again engage the rack-bars, thus insuring their return to the proper relative positions of the item-segments and the rack-bars. A further movement of the item- segment cams 39 and 40 results in a raising of the yoke 53 and cradle .49, supporting .the item-segments, together with the cams themselves. In the case of addition this is a direct and continuous movement due to .the cams 40' on the outside face of the. broadcam disk 40, resulting at once in a contact. of the teeth of said item-segments with the teeth of the accumulator wheels 300 of the accumulating mechanism. A further movement of the distributor sleeve 31 brings into engagement the teeth of the outer or right hand mutilated gear 33 with the teeth of its corresponding stop face pinion 43 in such a way as to give the stop face pinion 43 a rotary motion, continuing in this motion until one revolution is completed. This revolution throughthe means of the curved connecting rod 46, pivoted to the face of the pinion and having its lower end connected with an arm on the right-hand end of a rock-shaft 47, loosely sleeved on the center of the main driving shaft and carrying at its left hand end an arm connected by means of a curved link 48 with a stud 66 on the left hand end of the item-segment cradle 49, communicates an oscillatin or rocking motion to the cradle and t e item-segments. as a body. This brings into active engagement with the accumulator wheels 300 of any of the'itemsegments 50 which may have beenset up to represent anyone of the digits, resulting in a greater or less degree of movement of the accumulator wheels 300 so engaged. It

will be seen from the foregoing that in order to retain the accumulator wheels 300 in the position 'iven them by the forward move ment of the item segments, it is necessary to withdraw the item-segments 50 from their engaging position into an intermediate position between the accumulator wheels 300 and the rack-bars 71, where backward movement of the item segments may take place without effect either upon the accumulator wheels or. the rack-bars. This is accomplished by means of the same lifting cam 40" on the right hand side of the wider of the two cam disks, Whichare mounted upon the item segment shaft. As the motion of the gear 43 with the stop face is continuous after once started, it will be seen that this is rapid and continuous. After the completion of the revolution of the stop face gear 43, connected with the item segment cradle 49, a further motion of the cam 40 results, bringing the item-segments into engagement with the rack-bars in their original starting position and relation.

In the case of adjusting the machine for subtraction one turns the handle N at the left of the machine, Figs. 1 and 9, so as to produce a movement of the shaft and the shifter arm 393 to the right, which releases the cam beam 397 used in addition and fixes in stationary position the cam, beam 397' to be used in lifting the item-segments for subtraction. Now, a releasing of the main driving mechanism produces the same rotary effects on the gears 33, 43 and cams 39, 40, with the result, however, that the lifting motion first described in the case of addition is only partial-that is, the item-segments 50 are lifted only sufficiently to become disengaged from the rack-bars 71 where they are held until the completion of the forward rotation of the cradle 49, carrying with it the item segments 50. The cam 39 is so arranged that the continuation of its action then lifts the itenrsegments 50 into engagement with the accunuilator wheels 300 and holds them there while the segments are re versely rotated, with the effect that the accumulator wheels 300 are turned in the opposite direction from what they were in the case of addition, because they now engage with the item segments 50 during their backward movement. At the close of the movement of the stop-face gear 43, controlling the oscillation of the item segments in the case of subtraction, the cams let the item segments fall at bnce from engaging position with the accumulator wheels directly into the engagement with rack-bars to complete their movement.

304 is a justifier acting on the teeth of the wheels 300. It is actuated through the sprin connected lever 305 byv the cam 301 and a so the depending arm 308 Figs. 8*, 8". The accumulator wheels 300, Fig. 4 are furnished with fine teeth 309, which mesh with gear teeth on a set of indicating idler wheels 311, which show definitely the position of the accumulator teeth and by numbers upon their surfaces indicate the total of the items set up.

Carrying mechanism, (Figs. 4, 6, 6*, 7, to 7.)The smaller mutilated gear 32, mounted upon the distributer sleeve 31, engages the pinion 41, having a stop face and designed to make one revolution for each cycle of the machine. This pinion 41 is rigidly mounted upon a sleeve having toward its inner or left-hand end two adjacent pinions 500, 501, of which the right hand one, 500, engages a broad intermediate pinion 502 downward and to the rear of it, and the inner or left hand one, 501, engages in the case of addition with a small pinion 503 mounted upon the carrier shaft 260 and feathered thereto and having a recess 505 at its inner end designed to be engaged by a fork 395 on the upper end of the shifting arm 393, heretofore described, Figs. 6, 6*, 9. The intermediate pinion 502 in this series has a broader face than either the driving pinion 500, engaging therewith, or the driven pinion 503, so that the pinion 503 feathered upon the carrier shaft, may either engage directly with the driving pinion 501 or by use 'of the handle N at the left hand of the machine, used to shift from addition to subtraction, it may be disengaged from the driving pinion 501 and engage with the intermediate pinion 502. \Vhen in this position, it moves freely under the a tion of the intermediate gear 502 and without direct engagement with either of the two driving'pinions 500, 501 on the main sleeve. This arrangement provides for obtaining either a forward or backward revolution of the sliding pinion 508 and the carrier shaft,

which thus make one revolution for each cycle of the machine and at a time beginning at the close ofthe oscillating movement of the item wheel devices, the (iiIBCtlOll being determined by the adjustment for addition or subtraction.

\Vhat I- will here term the carryingwheels are a series of wheels 510 Fig. 7, loosely mounted on hubs 522, fixed upon a sleeve 511, fixed on the carrier shaft 260, and corresponding in number to the accumulator-wheels 300 and meshing therewith and having on their left-hand faces projecting pins 512, which as they are revolved, as in the case of addition, each engage with a nose on the upper and-forward end of a series of triggerplates 513, Figs. 7 to 7, whose downward and rearward end 513 is adapted to enter a notch 514 in a spring-actuated plate 515, having a reciprocating motion, and which I will here call a ram. The reduced portion of this ram 515 enters a hole 516 in the cross-frame 517 of the machine and is impelled out and forward by the compression spring 518. To the forward end of this ram is pivoted a plate 519, having at its extreme forward end a finger 520 and adjacent thereto and securely mountedupon it a segment of a gear 521, consisting of two teeth of like width and dimensions with the teeth of the carryingwheels 510. The carrying-wheels are loosely mounted upon the carrying-sleeve 511, by means of hubs 522, which are securely fixed to the sleeve and revolve with it. These hubs 522 have at different positions upon their peripheries teeth 523. The location of these teeth vary in position from the right to the left and vice versa, forming two spirals as the hub is revolved in relation to afixed point, the teeth on the first hub to the right being comparatively close together, the teeth on the second hub being somewhat farther apart and continuing in this way through the series until the teeth on the extreme left-hand hub, corresponding spirally to the teeth on the right-hand hub, are exactly in line. These spirals run in both directions from the right to left and left to right, as it is necessary for addition to turn the sleeve 511 and the hubs 522 in the opposite direction to that in which they are turned for subtraction. These spirals are partly shown in the drawings, Fig. 7. When a pin 512 on the carrying-wheels has engaged the upper and forward end of one of the triggers 513 sufficiently to release its rearward end 5l3 from the notch 514 of the ram-plate 515. the pressure of the spring 516 in the barrel forces the ram-plate forward against a restraining-bar, 524, which is hung in a swinging yoke 525, pivoted at 525 supported by the inner framework of the machine and having an outwardly projecting arm 526, carrying a roller 526 adapted to engage a cam 527 on a secondary

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