US418145A - Staple-making machine - Google Patents

Description

(No Model.) 4 Sheets-Sheet 11.

11. H. TAYLOR. STAPLE MAKING MACHINE.

No. 418,145. Patented D60. 24, 1889.

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E. H. TAYLOR. STAPLE MAKING MACHINE.

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E. H. TAYLOR. STAPLE MAKING MACHINE.

Patented Dec. 24, 1889.

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B. H. TAYLOR. STAPLE MAKING MACHINE.

No. 418,145. Patented Dec. 24, 1889 E 12. N wikqess as. I

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UNITED STATES. PATENT OFFICE.

EUGENE I-I. TAYLOR, OF LYNN, ASSIGNoR TO THE AMERICAN SHoE TIP ooMPANY, OF BOSTON, MASSACHUSETTS.

STAPLE-MAKING MAGHIN E.

SPECIFICATION forming part of Letters Patent No. 418,145, dated December 24., 1889.

Application filed January 9, 1889. Serial No. 295,837. (No model.)

To all whom it may concern: Throughout the accompanying drawings Be it known that I, EUGENE H. TAYLOR, of like letters of reference indicate like parts. Lynn, county of Essex, State of Massachu- A is the bed of the machine, which may setts, have invented certain new and useful be of any desired shape, but which is shown 5 Improvements in Machines for Making Staas a rectangular box within and upon which pics for AttachingButtons, of which the folthe mechanism is supported. lowing is a specification, reference being had B is the main shaft, which is mounted in to the drawings accompanying and forming" bearings in the bed, (see Fig. 1,) and which a part hereof, in which carries at one end a driving-pulley O, which, IO Figure 1 is a plan view of my machine. by means of shipper mechanism D of well- Fig. 2 is a side elevation. Fig. 3 is avortical known construction, may be made fast or longitudinal section through the center of the loose on the driving-shaft. At the other end machine. Fig. 1 is ahorizontal section through of the driving-shaft a cam-wheel E is secured, the front of the machine, showing the die, as which reciprocates the lever F, which is piv- I 5 also the blocks which press the sides of the oted to a stud G, projecting from the bed or fastener. Fig. 5 is a vertical section on line frame A. The otherend of the lever F is y, Fig. 1, showing an elevation of the sideslotted, as shown, Fig. 1, to receive a stud in pressing or prong-forming dies. Fig. 6 is a the end of a link H, the other end of said vertical section on line 2, Fig. 1, showing an link being connected by a slotted connection 2o elevation of the stationary cutting-dies. Fig. with the end of the arm I, which is pivoted 7 is a cross-section of the frame in which one on a vertical shaft J. The arm I has on either of the stationary cutters is set, showing the side thereof ashort arm or projection K, upon clearer whichdischargesthewaste pieces from which are pivoted the pawls L L. These the machine. Fig.8 is a cross-section on line pawls engage with the. teeth of the ratchet- 25 .20 0c Fig. 9,showing the projection which cowheel M, fast on the shaft J. The shaft J is operates with the movingdie to form the 0011- set in aprojection from the bed or frame of cave neck of the fastener or staple. Fig. 9is the machine and carries a feed-roll N, (see a section on line y y, Fig. 8. Fig. 10 is a Fig. 2,) which has a peripheral projection front elevation of the movable cutters and somewhat roughened or corrugated, which 00- 8o 30 former-die. Fig. 11 is a horizontal sect-ion, operates withacorrespondingrecessorgroove enlarged, of one of the dies which shapes the in the periphery of the companion feed-roll prongs of the fasteners. Figs. 12 and 13 are N, and acts to seize the flat wire and feed it respectively a side elevation and section of a forward. On the upper end of the shaft J is fastenersuch as my machine is designed to secured a gear P, which meshes with a corre- 3 5 make when fitted with dies of the form shown spondin g gear P on the upper end of the verin the accompanying drawings. tical shaft J, and operates to revolve the The object of myinvention is the construcshaft J and so to cause the companion feedtion of a machine for making staples or fast roll N to operate. eners for use in attaching buttons to leather As will be clear, the reciprocation of the 40 or similar material; and it consists of the aparm I will cause an intermittent movement paratus, hereinafter described, embodying of the feed -rolls, and the length of their mechanism for feeding the flat wire from movement may be. controlled by means of which the staple is made into the machine the slotted connections of the link H with for cutting the wire so fed in into lengths or the arm I and the lever F. iefore the wire 45 sections each sufficient for one staple, for reaches the feed-rolls it passes through the bending the section of wire into the staple vertical and horizontal strengthening-rolls R shape-that is, with prongs substantially par- R. After the wire passes through the feed allel to each other-and for dieing up a porrolls it enters a narrow channel or guideway, tion of the back or bow of the staple, so as to (shown at'a, Fig. 4,) and passing through this 50 make it concave in cross -section, all as will guideway projects across the space (shown be hereinafter more fully described. near the center of Fig. 4) directly in front of are actuated as hereinafter described.

these cutters h h move forward they pass parallel prongs, as shown in Fig. 12.

the male die 7), its forward end being received in a recess, (shown at (Z, Fig. 4.) The for ward end of the wire, when in this position, is ready to be cut, and as the ends of the prongs are rounded, as shown at c, Fig. 13, the cutters are adapted to cut a section from the wire with rounded ends. This is effected by the stationary cutters f f, which have a round notch or concavity cut from them, as shown at 9, Fig. 6, corresponding to the round required for the end of the staple-prong, and which co operates with correspondinglyrounded reciprocating cutters h h, whfih between the stationary cutters f f, cutting off the section of wire and carryingit forward between the stationary cutters until its ends approach the blocks 70 7c. The blocks bk being nearer together than the stationary cutters ff, the section of wire is bent and carried forward between them by the die I), which continues to move forward after the moving cutters h 71/ have stopped. The die I) corresponds in shape to the interior shape of the fastener or staple, and serves as amold around which thefastener or staple isbentand shaped, the sides of said die being straight and parallel to each other, and the pressing-faces of the side-pressing blocks k k being also straight throughout and parallel to each other, thus forming fasteners or staples with straight The die 6 continues its forward movement, carrying the center of the section of wire into a recess (shown at Z, Fig. 4) in block m. At the same time the blocks 70 7a are moved up sidewise that is, caused to approach each otherby mechanism which will be hereinafter described, thus pressing those portions of the wire which form the prongs of the fastener against the sides of the die I). The tip of the die I) is concave in vertical section, and the bottom of the recess Z is provided with a projection at a, Fig.9, havinga convex end, so that the pressure of the forward end of the die I) in the recess Z and against the projection curves the arch or neck of the staple, making it concave in cross-section, as shown at 13, Figs. 12 and 13. The moving die I) then recedes and allows the formed fastener to drop out of the machine or to be pushed out by the clearing devices hereinafter described. The stationary cutters f f consist of plates having four round notches in their edges, so that if the cutters become worn or dull the cutterblocks maybe shifted or turned over, so as to bring new cutters into position. As these cutters are readily movable by removing the cutter-plates b and removing the screws which secure the cutters to their plates, (see Fig. 6,) other cutters adapted to produce different-shaped prongs or fasteners of a different size may be readily substituted for them. In the same manner the pressing-blocks 76 k, which are secured in place by screws, as

shown, may be readily removed and others substituted, and the same is true of the movable cutters h h and the die 17. The sidepressing blocks 1c which form the prongs of the staple, are provided with pins (1 which project into holes in the blocks 70 70 which carry the blocks k 70, said pins being indexpins to assist in setting the blocks 70 70' in position.

The mechanism for operating the die I) is as follows: A throw-cam q is fast on the shaft B, (see Figs. 1 and 3,) and this cam works in a slotted rod or bar r, having a friction-roll s, journaled in the slot directly in front of the cam q. The bar 4' is enlarged, as shown at r,

, Fig. 3, and is slotted horizontally at the enlarged part to accommodate the shaft B, which passes through it. The forward end of the rod or bar 1" slides in a groove or way in the stationary sl'lpporting-piece A, which is fast to the frame of the machine and carries a rod 15, which projects longitudinally into an aperture in the bar r, formed to receive it. In front of the rod t in the forward end of the bar 0" the shank or rearward projection ll" of the die I) is set, the die being. allowed to extend forward in front of the end of the bar 1'. The rear end of the rod t is screwed into the bar 4", and is provided with a head or nut by which the rod 25 may be screwed inwardly or outwardly to adjust the die I), as desired. In the rear of the throw-cam q a rod u is set in the bar 4" and projects through a hole in the rear of the frame A. The rear end of the rod u'is provided with a nut, and between this nut and the frame A a spiral spring '0 encircles the rod. As the cam q revolves, it acts against the friction-roll s and forces the bar 0 and the operating-die b forward a distance equal to the throw of the cam, while as the cam revolves past its point of greatest throw the spring Q), which has been compressed by moving the bar r forward, acts to draw the bar 1" back, thus drawing back the die 6 and keeping the roll .9 pressed against the periphery of the cam g. It is clear that by this mechanism the die will be reciprocated. An additional cam for operating this device is provided for greatersafety. It consists of a cam a (shown in dotted lines, Fig. 3,) cut in the face of the cam-wheel q. A cam-stud 5 set in the bar 0, engages with a cam a and would operate the die in case the throw-cam q or spring 1) should fail to work.

The moving cutters h h are set in blocks to 20, which, for purposes of lateral adjustment, are in turn mounted in slotted blocks a (t the latter being set on the forward end of, bars 1) 12 which are arranged to slide in grooves cut in the frame part A on either side of and parallel with the die-bar r. The bars Z) b project backwardly to the main shaft, their rear ends being enlarged and slotted to receive said shaft. On the main shaft are set two cam-wheels c 0 (see Fig. 1,) and on the faces of these wheels, next the said bars bf 6 are cut cams which engage with studs 0 (1 set on the said bars, and which cause the bars a C62 and the cutters h 7t to reciprocate as the shaft revolves. The bars a, a are provided at (1' (1 Fig. 1, with a nut and screw, for purposes of adjustment.

For the purpose of moving the blocks 70 7c sidewise to press the prongs of the staple into position, I provide the rods or bars g g which at their rear ends are enlarged and slotted, to receive the main shaft, in the same way as are the rods 1) b and which are provided with cam-studsffi, Whichengage with cam-slots cut in the faces of the cam-wheels 0 0 (see Fig. 1,) which act to reciprocate the said rods or bars g 9 The rods 9' g are also provided with a nut-and-screw device at h h forpurposes of adjustment, and their forward 'ends slide in slots or ways out in the forward part of the frame. (See Fig. 1.) The links j'j constitute a pair of half-toggles connecting at one end with the forward ends of the rods g g and at the other end by a similar socket-joint connection to blocks k M, which carry the blocks 7c 70. (See Fig. 4.) The blocks 70 k are arranged to slide at right angles to the rods g g in grooves or ways crosswise of the machine. It will be clear that as the rods 9 g are forced forward by their cams the blocks 10 k and 7c 76' will be forced inwardly by means of the half-toggle links j j and will press the prongs of the staple or fastener closely against the sides of the die b, and that at each revolution of the main shaft a fastener will be formed.

When the cutters h 72 cut a section of wire from the continuous piece sufficient to form a fastener, there is a small piece of waste which is cut out, and which is, when out, in the space d, Fig. 4. This waste piece is allowed to drop out of the space cl clear of the machine. To insure the dropping of the waste pieces in case they should stick, I provide a rod f, Fig. 7, having a bent and flattened lower end, which is reciprocated in the space cl by means of the vertically-reciprocating rod 9 towhich the upperend of the rod f is pivoted, and which acts to clear the space 61. For the purpose of clearingeach fastener from the machine as it is formed in case it should stick in the die, I have provided the following device: I pivot a lever of the shape shown, Fig. 3, to a lug on the rear portion of the stationary plate A which is secured on top of the part A of the frame. The rear end of this lever is connected by a pivoted link b to aprojection c on the slide-rod r. The other end of the levera is provided with an open slot or U-shaped notch d3, which receives a stud f which may be provided with an antifriction roll, if desired, said stud f being set in a short rod g (see Fig. 7,) which slides vertically in an aperture made to receive it in the block 72 which is secured on the frame of the machine. This rod 9 operates the clearer f, as previously explained. The forward end of the lever a has a downward projection 9' which is forked at its lower end, as shown, Fig. 7, so that as the forward end of the lever a is forced downwardly the forked end of the projection j will move down onto the die I), striking a fastener which. might stick to the die and throwing it downwardly clear of the machine. On the front of the projection j a finger Z is pivoted, as shown, Fig. 3, so as to hang downwardly in front of the projection 7' A spring behind the finger keeps its lower end against the face of the die or die-holder. Said lower end of the finger is provided with two small-projections, as shown, which pass the opening of the recess Zas the finger Z is forced downwardly, and

thus come in contact with a fastener which might stick in the recess and force the fastener downwardly out of the machine. It will be clear that as the die rod or bar 1' is reciprocated the lever a will be rocked on its pivot, and the forward end of the lever will reciprocate in substantially a vertical line, clearing by positive action any fastener which may stick in either the die 1) or in the recess Z.

The recessed or female die m, which co-operates with the forward end of the male die I) to form the arched neck of the fastener or staple, is constructed as shown in Figs. 8 and 9. It consists of an oblong block of metal, as there shown, which has a concavity or slot- Z cut in the face thereof, the Width of which equals the width of the arched neck of the staple. Midway of this recess the die is slotted crosswise to receive the piece h which piece isprovided centrally, where it crosses the slot Z, with a convex projection 0. left in the central portion of the piece h and the co-operation of this convex projection a with the concave tip of the male die 1) produces a concavity in the middle or top of the neck of the fastener, as already described, and as shown atp, Figs. 12 and 13. It will be clear that a cross-section of the slot or recess Z of the female die through the projection a will be substantially of the shape of the neck of thefast-ener. For retaining and adjusting the piece If in the die m, I provide on either side thereof screws j, (see Fig. 8,) the heads of which bear on shoulders at either end of the piece 71 and thus serve to retain and adjust the piece 71 in position in the die.

As above stated, the side-pressing blocks k move inward toward the male die and act to press the prongs of the staple against the same. In this way a staple with parallel prongs or with the prongs set in a given position may be accurately obtained. If a fe male die be used with rigid sides, the prongs of the staple are apt to spread after it leaves the dies, owing to the spring of the metal, and thus a staple with accurately-set prongs cannot be produced with certainty. For many purposes, as where the staples are to be driven by machinery, it is desirable that their prongs should be accurately set in position relatively to each other and to the neck or crown of the staple.

What I claim is- IIO 1. In a staple-making machine, the combination, with a reciprocating male die having straight parallel sides, of a pair of side-pressing blocks having a movement toward and from each other and from the said male die, the pressing-faces of the said side-pressing blocks being straight throughout and parallel to each and to the sides of said male die, substantially as set forth.

2. In a staple-making machine, the combination, with a reciprocating inale die having parallel opposite sides and a projecting tip, of a female die having a recess to receive said tip, and a pair of side-pressing blocks reciprocating toward and from each other and the said male die and having pressingfaces which are straight throughout and parallel to each other and to the straight sides of the said male die, substantially as set forth.

3. Astaple-making machine having a male die of the shape of the interior of a staple, said die having a concavity on the tip or for- 'ward portion thereof, and a co-operating recessed die having a convex projection in the recess thereof, whereby by the co-operation of said concave and convex portions a staple having a portion of its neck concaved may be produced, substantially as described and shown.

4. In a staple-making machine, the combination,with a male die, arecessed or female die, and a pair of side-pressing blocks, of a pair of stationary and a pair of movable cutters, said stationary cutters being. located behind the side-pressing blocks and said movable cutters being located on either side of said male die and having av movement parallel therewith, substantially as shown and described.

5. I11 a staple-making machine having a male die and a co-operating female die, the

combination therewith of the rod- 1", which actuates the male die, the lever a pivoted to and the pivoted finger Z for the purposes and substantially as shown and described.

'7. In a staple-making machine, the combination, with the male and female co-operating dies, of the rod 0 and its actuating-cam, the link b the lever a pivoted to a stationary part. of the machine, the vertical rod 9 engaging with the forward end of said lever,

and the c'learerf connected with said vertical rod, for the purposes and substantially as shown and described.

8. In a staple-making. machine having a male die and a co-operating recessed or female die, the combination therewith of the blocks U, which carry the side-pressing blocks 70 7c, the half-togglesjj engaging at one end with said'blocks 70 k and at the other with the reciprocating rods g 9 and said rods g g and their actuating-can1s,substantially as shown and described.

9. In a staple-making machine, the combination of the male and female co-operating dies, the rod 1' and its actuating-cam, the stationary cutters f f the moving cutters h h, their actuating-rods Z2 1) and their cams, the pressing-blocks 7c 70, their half-toggles jj and actuating-rods g g and their cams, substantially as shown and described.

EUGENE H. TAYLOR. WVitnesses:

WM. A. MAcLEoD, ROBERT WALLACE.

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