US1101144A - Machine for making butttons. - Google Patents

Description

P. PAVLIK.

MACHINE FOR MAKING BUTTONS.

APPLICATION FILED JUNE 10, 1912.

Patented June 23, 1914 4 SHEETSSHEET 1.

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P. PAVLIK.

MACHINE FOR MAKING BUTTONS.

APPLICATION FILED JUNE 10, 1912.

1,101, 144. Patented June 23, 1914.

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P. PAVLIK.

MAGHINE FOR MAKING BUTTONS. APPLICATION FILED JUNE 10, 1912. 1,101, 14: 1:. Patented June 23, 1914.

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P. PAVLIK.

MACHINE FOR MAKING BUTTONS.

APPLICATION FILED JUNE 10, 1912.

Patented June 23, 1914.

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COLUMBIA PLANMIAPH CO-IWASHINIITON, B c.

PAUL PAVLIK, OF NEW YORK, N. Y.

MACHINE FOR MAKING BUTTONS.

Specification of Letters Patent.

Patented June 23, 1914.

Application filed June 10, 1912. Serial No. 702,684.

To all whom it may concern:

Be it known that I, PAUL PAVLIK, a subject of the King of Hungary, and a resident of the borough of Manhattan, in the city, county, and State of New York, having.

declared my intention of becoming a citizen of the United States, have invented certain new and useful Improvements in Machines for Making Buttons, of which the following is a specification.

The object of my invention is to afford an apparatus in which the operations of drilling thread holes and forming fish-eyes away in parts; Fig. 2, a side elevation of the same, also partly broken away; Fig. 3, is an end elevation; Fig. 4, is a side elevation of the blank forwarding and retracting mechanism with the blank holder advanced; Fig. 5, is a sectional elevation showing the blank holder retracted; Fig. 6, is a sectional elevation of the parts in the position shown in Fig. 4; Fig. 6 is a detail view of the chuck holder detent; Fig. 6 is a detail view of the rear deflector; Fig. 7 shows a front view of the blank holder, &c.; Fig. 8, is a sectional elevation taken upon plane of line 8-8, Fig. 1, but on a larger scale; Fig. 9, is a sectional elevation of the fish-eye cutter; Fig. 10, a sectional elevation upon plane of line 1010, Fig. 9; Fig. 11, a central longitudinal sectional elevation of the thread hole drilling mechanism, partly broken away;

Fig. 12, is a sectional elevation upon plane of line 12-12, Fig. 11; Fig. 13, is a view illustrating the use of a hand lever for effecting the reciprocation of the feed spindle, &c.; Fig. 14., is a sectional elevation taken upon plane of line 14114, Fig. 4, looking toward the rear of the cross head; Fig. 15, is a front view of one of the drill chucks.

B, represents the bed of the apparatus upon which the parts are mounted in proper relation to each other.

The apparatus as a whole comprises three devices which cooperate in unison in attainmgthe result desired, namely, the simultaneous treatment of two button blanks whereby one is pierced to form the thread holes, and the other grooved to form the fisheye.

F, is the feed mechanism; D, the thread hole drilling mechanism extending in longitudinal alinement therewith, and E, the fisheye cutting mechanism extending at right angles to the other two. The hole drilling device, and the fish-eye cutter are positioned stationary with relation to each other and to the feed mechanism F, which presents the blanks successively to the other two, and hence is reciprocatory in character.

The blank holder H, consists essentially of a cross head upon which are mounted two chucks h, in axial parallelism with each other and with the longitudinal axis of the spindle a, upon which the cross head H, is rigidly mounted. Each chuck it, is formed with expanding jaws which are contracted when seated in the cross head, in which position they are held normally by springs h, interposed between the cross head and a collar 7%, on the shank of the chuck, the rear extremity of which shank protrudes at the back of the cross head to form a contact h for engagement with the releasing stop 1", under conditions hereinafter described. An intermittent reciprocatory and rotary motion is imparted to the spindle a, by suitable mechanical exped'ients- Thus in the con trivance shown in the drawings a rock lever 0, is used to reciprocate the spindle a, and the latter is caused to make a quarter turn upon its longitudinal axis at each advance and retraction of the spindle by means of cams a, a, thereon contacting with stationary deflectors f, f, with the result that the cross head H, is correspondingly rotated one quarter of a circle, so that each chuck it, temporarily and successively assumes four positions during each revolution of the spindle a.

The rock lever c, is fulcrumed on a bridge bracket Z), between the standard Z), 6, extending upward from the common base B, said standard being formed with the bearings b 6 supporting the spindle a, and with the brackets 6 5 upon which the sta tionary deflectors f, f, are mounted, and also with the bracket 6, upon which the stationary detent f, is mounted. The lever is of the second order, the work being between the fulcrum and the power, and hence is formed with an annular yoke 0, carrying pins 0 c engaging with holes formed for their reception in the sleeve (6, upon the spindle a, as will be seen more particularly by reference to Fig. 8, in which it will also be seen that the lever o, is fulcrumed on the bridge bracket 5, in such manner as to admit of a slight degree of play to compensate for the movement of the spindle (1,, upon its longitudinal axis.

The sleeve (4 being loose upon the spindle a, except as held against rotation therewith by the pins 0 of the yoke 0, is confined between shoulders a, w, on said spindle, the shoulders a (1?, in the present case consisting of the abutting ends of the cam sleeves a, a, which latter are rigidly secured to the spindle a. The lever c, is rocked to effect the reciprocation of the spindle longitudinally, either manually by means of a handle 0 pivotally connected therewith as shown in Fig. 13, or automatically by means of a cam and connections as shown in Figs. 1 and 2 of the drawings, in which G represents a disk cam on one end of a transverse shaft 9, mounted in bearings on the standard 5 upon the base 13, the other end of said transverse shaft g, carrying a miter gear 9, which meshes with a pinion 9 on the driving shaft 9 also mounted in bearings on the standard Z), and provided with the driving pulley g", as shown in Fig. 1.

The face of cam G, is formed with the thrust groove 9*", into which protrudes a roller 9, (shown in dotted lines in Fig. 1,) mounted upon the slide 9 supported in guides 7), l), on the standard The slide 9 is pivotally connected with the rock lever 0, by a coupling link L, which is adjustable in length to regulate the relation of the parts with accuracy, and particularly with relation to the forward thrust of the spindle a, for the purpose of governing the depth of the fish-eye cut in the blanks by fish-eyecutting mechanism. The concentric portion 1, of the thrust groove represents the period when the spindle a, and cross head H, are advanced and presenting the button blanks to the action of the hole-drilling and fish-eye cutting mechanism, while the concentric portion il, of said groove 9*", represented the retracted position of the spindle a, and head H, during which period a finished blank is discharged and a fresh blank substituted therefor, hereinafter more fully set forth. The intermediate or eccentric portions 3, 3, of the groove represent the forward and retractile thrusts of the spindle a, as imparted thereto through the medium of the slide 9 link L, rock lever c, and sleeve o The cam sleeves a, a, are each formed with diametrically opposed cam surfaces 1,4, and with recesses 5, and the cam surfaces and recesses on one cam sleeve break joints or are intermediate with relation to those 0 in either direction either one or the other of the cam surfaces 4, will encounter one or the other of the stationary deflectors j", f, causing the spindle to rotate upon its longitudinal axis until the said deflector enters the recess 5, on that side of the spindle, thereby holding the spindle against further rotation until it is moved longitudinally in the opposite direction, when the operation is repeated on the other side of the actuating sleeve (4 the spindle making a quarter turn at each longitudinal thrust, of which there are thus four to each complete revolution of the spindle.

The spindle a, is shown at the end of the forward or working thrust in Figs 1, 2, 4 and 6, and at the end of the retractile thrust in Fig. 5. When the spindle is retracted the cross head H, is always in a horizontal position whereas when the spindle is advanced the head is always in a vertical position although reversed alternately at each half revolution of the spindle. Thus obviously the chucks h, alternate in position, not only as related to the drilling and grooving tools, but also as related to the releasing trip 1 which may consist of the head of a screw engaging with a threaded boss 12*, on one side of the standard 7), a lock nut 1", being used to set the adjustment so that when the spindle is retracted the inner end contact 71 of one of the clutches 7L, will impinge against said stop r, ui'iseating the clutch jaws against the resistance of the spring h, and allowing the jaws to expand and release the button. The outer concentric portion 2, of the cam groove g, is timed to allow of this release and the insertion of. another blank in lieu of the one discharged before the beginning of the advance movement of the spindle a, upon which advance the removal of the contact 71 from the stop 1, allows the spring h, to re-seat the clutch jaws and clamp the new blank in position for presentation first to the fish-eye cutter c, and then to the drills (Z, (Z.

- The cross head 71, is held in the advanced vertical position, not only by reason of the engagement of the forward deflector f, with a recess 5, in the forward cam sleeve (4, but also by a detent f, on the bracket Z), which enters a notch It, one of which is formed in each end of the cross head at the rear side thereof as shown in Fig. 14. Thus the cross head is centralized and supported laterally during the operation of the cutters.

The fish-eye cutter e, is secured to the end of a rotatable spindle i, mounted in bearings z", i, on a carriage I, which is adjustable laterally on the bed B, for the purpose of,

regulating the position of the cutter 6, with relation to the advanced position of the under chuck h, in the cross head H, thereby gaging the depth of v the fish-eye groove formed in the button blank. The carriage I, rests between parallel ways b, 6*, on the base B, which preserve its longitudinal alinement at right angles to the feed mechanism F, and drilling mechanism D. It is clamped to the bed B, by a bolt 6 passing through a transverse slot 2', in the floor of the carriage I, (see Figs. 9 and 10) said slot affording ample lateral adjustment for the fish-eye cutter 6. This lateral adjustment of the spindle z, and fish-eye cutter e, is pri marily intended to compensate for differences in the diameters of the cutters e, which may be used. The accurate adjustment of depth of fisheye cut is efi'ected through the medium of the link L, by means of which the forward thrust of the spindle may be regulated so as to present more or less of the thickness of the blank in the upper chuck h, to the action of the cutter c. When the spindle a, is reciprocated manually, as by a hand lever 0 as indicated in Fig. 13, the forward thrust of the spindle is limited and regulated by an adjustable stop 1*, which may consist of a set screw engaging the threaded boss 72 and secured in the prescribed position by a lock nut 7 as shown in said Fig. 13,a bearing 0 on the lever 0 (or on the rock lever c, if preferred) contacting with said stop 9, to limit the degree of penetration of the fish-eye cutter e, into the button blank as before mentioned. This regulation of the depth of the fish-eye groove by the adjustment of the cutter in button machinery enables me to produce buttons having fish-eyes of uniform depth and appearance.

The longitudinal adjustment of the spindle z, in its bearings 71, 2", is effected by a bearing screw 2' engaging a thread formed in a bracket arm 2' at the rear of the carriage I, said set screw 1?, being provided with a jam nut 2', to lock it in the prescribed position. The end of the set screw 2' impinges against a hardened bearing "5 (Fig. 9) inserted in the end of the spindle, and constitutes a back rest therefor. The spindle is held against longitudinal movement in the opposite direction by a collar 71,

resting against the inner side of the front bearing 2', said collar 2'", forming part of a sleeve 2' on which is a coiled spring i interposed between the collar 2', and the pulley 2'". The collar 2'", is secured to thev spindle i, by a set screw i and the pulley i, by a set screw 2' When it is desired to effect the longitudinal adjustment of the spin- 3 spindles (Z (Z dle i, the set screw i is loosened, and the bearing screw i advanced or retracted as desired, the spring i holding the collar i against the bearing '5, but permitting and compensating for the longitudinal movement of the spindle 2'. When the desired adjustment is efi'ected the set screw 2' is again tightened, thereby again locking the spindle against longitudinal movement in either direction. The bearings 2", i, are provided with the usual bushings, and means for lubrication; and the spindle is rotated by a belt applied to the pulley The hole drilling device D, as before stated, is in alinement vertically with the longitudinal axis of the feed mechanism, the drills d, being focused toward the center of the upper chuck 72,, when the cross head H, is in the vertical position so that when the spindle a, is advanced, the button blank in said upper chuck will be pierced with the requisite thread holes. The drills, as heretofore, are steel wires, chisel-sharpened at their cutting ends, their opposite extremities or shanks being inserted and clamped in chuck jaws d, d, on rotatable These spindles d d consist each of an outer tube 0Z mounted in bearings in standards 6 6 on a frame 6 attached to the base B. Each outer tube (Z3, is provided with a driving pulley (Z and a collar 65 the hub of the pulley and the collar d abutting against the rear stand- .'EI.ICl b and holding the spindle against longitudinal movement. The forward end of each outer tube 64 is flared or beveled outward to contact with conoidal chuck jaws cl, and close them when the inner tubes (1, (of which the jaws d, form a part) is drawn inward by means of the hand nut 6Z7, which engages the threaded rear end of said inner or clutch tube cl.

The drill spindles (P, are driven by preference by means of a belt common to all contacting with the several pulleys (Z It will be seen that the drill spindles converge so that the drills (Z, are concentrated, their outer ends being supported in a perforated bushing (Z mounted in the forward bracket arm 6 on the standard 6 of the frame 7). The drill point supporting bushing (Z is detachable, being held in place by a set screw (Z and different oint supporting bushings (Z are used according to the desired relative arrangement and number of the holes to be drilled in the button blank. An adjustable intermediate support al is provided for the drills between the point supporting bush- (Z10, not only guides and sustains the drill wires, preventing their sagging, but it also performs the function of a spreader or spacer to compensate for differences in the point-bushings (Z used on the forward end of the bracket 6.

By my construction and arrangement of parts the drills (Z, may be quickly and conveniently inserted or withdrawn from the chucks (Z, when the cross head H, is in the horizontal position without unshipping or disturbing any of the parts,it being then simply necessary to open or close the jaws (Z, by means of the hand nuts (Z at the rear of the spindles (Z Furthermore the hollow construction of the latter admits of the use of long drill wires which may be sharpened many times before they are too short for use; and it also facilitates the insertion and adjustment of the drill into position for use.

The operation of the apparatus is as follows. The parts being in the positions shown in Figs. 1 and 2 with the cross head H, thrust forward and in vertical position see also Figs. at, 6 and 7) the rotation of the cam G, causes the roller 9, to enter one of the eccentric portions 3, of the cam groove retracting the slide 9 and through the coupling link L, rocking the lever c. This causes the sleeve (1 to retract the spindle a, withdrawing the forward cam sleeve 65-, from the forward stationary deflector f, and the lower notch hf, in the cross head away from the detent f, and also bringing the cam surface of the rear cam sleeve a, into contact with the other stationary deflector f, on the rear bracket 5 As a. result of this last named contact the deflector f, enters a notch 5, in the cam sleeve (1., at the completion of a quarter revolution of the spindle a, upon its longitudinal axis, thereby bringing the cross head into the horizontal position, with the contact lbs, of the chuck it, (carrying the button blank which has just been drilled with thread holes) into engagement with the trip 1", by which action the clutch jaws are unseated and expand to release the blank. \Vhile the roller 9, is in the outer concentric portion 2, of the cam G, a fresh blank is substituted for that discharged, to be in turn clamped by the aws under the action of the spring h, when the contact 71?, leaves the trip a", after the roller g, encounters the other eccentric portion 3, of the cam groove thereby acting through the slide link L, rock lever c, and sleeve ra to forward the spindle 0. During the forward movement of the spindle a, the rear cam sleeve a", clears the stationary deflector f, and the cam surface on the forward cam sleeve (4, encounters the forward deflector f, causing the spindle a, to again make a quarter revolution upon its longitudinal axis by the time said forward deflector f, has entered the recess 5, on that side of the cam sleeve a, and again returning the parts to the relative positions shown in Figs. 1, 2, l, 6 and 7, except that the cross head has been reversed in position vertically, the chuck it, carrying the blank from the fisheye cutter 6, being now on top and said blank being presented to the drills (Z, for piercing, while the fresh blank is being subjected to the action of the fislreye cutter e. As the cam-sleeves a, a, are duplex in character and each bi-laterally symmetrical, it is obvious that upon the next revolution of the cam G, the operation above described will be repeated, and so on continuously as long as fresh blanks are substituted for those discharged automatically as set forth.

lVhere it is desired to operate the feed manually the cam G, is dispensed with or the link L, disconnected from the rock lever 0, and the hand lever 0 pivotally connected therewith as hereinbefore set forth. Otherwise the operation is the same as heretofore described, the hand lever 0 being a substitute for the cam slide g. In either case the operation of the eye-cutting mechanism E, and of the hole drilling mechanism D, is the same and continuous,the work, i. 0., the button blanks, being advanced and fed to the tools, which are relatively speaking stationary in position. At the same time the apparatus is adapted for special hand work when desired, where extra care and finish are requisite in the production of finer grades of goods.

W hat I claim as my invention and desire to secure by Letters Patent is,

1. In apparatus of the character designated, the combination of horizontally disposed fish-eye cuttingmechanism and threadhole drilling mechanism positioned at right angles with relation to each other, and operative at different levels, a cross head, blank chucks mounted upon said cross head, a horizontal spindle on which said cross head is mounted, the longitudinal axis of said spindle being midway between the longitudinal axes of the said cutting and drilling mech anisms, means for turning and reciprocating said spindle, and means for opening said chuck alternately when the cross head is in the intermediate horizontal position, comprising cam surfaces upon the spindle, stationary deflectors with which said cams contact, a loose sleeve on said spindle, and a rock lever engaging said sleeve, whereby the reciprocation of the spindle causes its rotation, as and for the purpose set forth.

2. In apparatus of the character designated, the combination of horizontally disposed fish-eye cutting mechanism and threadhole drilling mechanism positioned at right angles with relation to the other, and operative at different levels. a cross head. blank chucks mounted upon said cross head, a horizontal spindle on which said cross head is mounted, the longitudinal axis of said spindle being midway between the longitudinal axes of the said cutting and drilling mechanisms, means for turning and reciprocating said spindle, means for opening said chucks alternately when the cross head is in the intermediate horizontal position, comprising oppositely disposed cams on said spindle, stationary deflectors with which said cams contact, a loose sleeve on said spindle interposed between said cams, and arock lever engaging said sleeve, whereby the reciprocation of the spindle causes its rotation, step by step, as and for the purpose set forth.

8. In apparatus of the character designated, the combination of horizontally disposed fish-eye cutting mechanism and threadhole drilling mechanism positioned at right angles with relation to each other, and operative at different levels, a cross head, blank chucks mounted upon said cross head, a horizontal spindle on which said cross head is mounted, the longitudinal axis of said spindle being midway between the longitudinal axes of the said cutting and drilling mechanisms, means for turning and reciprocating said spindle, and means for opening said chucks alternately when the cross head is in the intermediate horizontal position, comprising oppositely disposed cams on said spindle, stationary deflectors with which said cams contact, a loose sleeve on said spindle interposed between said cams, a rock lever engaging said sleeve, a slide pivotally connected with said rock lever, and a cam arranged to automatically reciprocate said slide, as and for the purpose set forth.

4. In apparatus of the character designated, the combination of horizontally disposed fish-eye cutting mechanism and threadhole drilling mechanism positioned at right angles with relation to each other, and operative at different levels, a cross head, blank chucks mounted upon said cross head, a horizontal spindle on which said cross head is mounted, the longitudinal axis of said spindle being midway between the longitudinal axes of the said cutting and drilling mechanisms, means for turning and reciprocating said spindle, and means for opening said chucks alternately when the cross head is in the intermediate horizontal position, com prising oppositely disposed cams on said spindle, stationary deflectors with which said cams contact, a loose sleeve on said spindle interposed between said cams, a rock lever engaging said sleeve, a slide pivotally connected wit-h said rock lever, an adjustable link interposed between said rock lever and said slide, and a cam arranged to automatically reciprocate said slide, as and for the purpose set forth.

5. In apparatus of the character designated, the combination of the horizontally disposed fish-eye cutting mechanism and thread-hole drilling mechanism positioned at right angles to each other and operative at difierent levels, a cross head formed with notches if, 7L blank chucks mounted upon said cross head, a horizontal spindle upon which said cross head is mounted, the longitudinal axis of said spindle being midway between the longitudinal axes of said cutting and drilling mechanisms, means for turning and reciprocating said spindle, and a stationary detent f, engaging the said notches 7t, 72/, in the cross head, as and for the purpose set forth.

PAUL PAVLIK,

Witnesses:

Gno. WM. MIA'rT, LILLIA MIATT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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