US296628A

US296628A - Machine for making barbed staples

Info

Publication number: US296628A
Authority: US
Publication date: 1884-04-08
Anticipated expiration: 1901-04-08

Description

2 Sheets-Sheet 1.

(No Model.)

G. RUMSEY. MACHINE FOR MAKING BARBED STAPLES.

No. 296,628; Patented A r; 8, 1884.

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(Na Model.) 2 Sheets-Sheet 2.

G. RUMSE .M'A GHINE FOR MAKING BARBED. STAPLES.

No. 296,628. Patented Apr. 8, 1884.

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GEORGE RUMSEY, or GRAND RAPIDS, MICHIGAN.

MACHINE FOR MAKING BARBED STAPLES.

SPECIFICATION forming part of Letters Patent No. 296,628, dated April 8, 1884. Application filed September 5, 1883. (No model.)

To all! whom it may concern:

Be it known that I, GEORGE RUMsnY. of Grand Rapids, in the county of Kent andState of Michigan, have invented new and useful Imprdvements in Machines for Making Barbed Staples; and I do hereby declare that the fo1- lci wing is a full and complete description there- The object of the aforesaid improvement in making staples is to cut from a reel of wire a certain length or blank, and bend the same into a staple, and at the same time serrate or barb the prongs thereof that they may hold firmly in the material into which they may be driven.

The construction of the mechanism and the arrangementand operation of the same for the above-specified purposes are as follows, whereof the annexed drawings are an illustration, in which-- Figure 1 shows a front elevation of the machine. Fig. 2 is a plan view. Fig. 3 is an end elevation. Figs. 4, 5, 6, 7, 8, and 9 are detached sections, to which reference will be made.

Like letters of reference refer to like parts in the several views.

On a suitable frame are the standards A, B, and (l, in which is journaled a main drivingshaft, D. Above said shaft, and parallel there with, is a shaft, E, journaled in the standards B and F, Fig. 1. 0n the end of the shaft Eis a wheel or disk, G, an enlarged detached View of which is shown in Fig. 4. In the side of the disk G is a recess, in which is fitted closely but detachable a pair of barbing plates or dies HI. Interposed'between said dies is abending slide, J, closely fitting but free to move radially between them. The barbing-dies are secured in the recess by the clamps K and K, Figs. 4 and 5. A detached view of one of the clamps is shown in Fig. 8, in which it will be seen that the clamp consists of a rib, L, provided with a narrow plate forming a back to the rib. The width of said back is equal to the thickness of the two barbing-dies and rib,

. as shown in Fig. 5, in which it willbe observed that the barbingdies and bending-slide do not fill the depth of the recess by so much as the thickness of the binding-plate M, placed on over the recess in a rabbet, that the plate may be flush with the side of the disk, and at the same time bind the clamps and dies firmly in the recess by means of screw-bolts inserted therein, as seen in the drawings. While the binding-plate M secures the clamps and the barbing-dies transversely in the recess, the said dies are bound edgewise therein by the set-screw N, inserted through the edge of the disk, to the clamp K, Fig. 4.. It will be obvious that on turning the setscrew in the proper directionit will force the clamp K and the barbing-dies hard against the farther side of the recess, and hold them securely and firmly therein without obstructing a free radial movement of the bending-slide J, interposed between the barbing-dies and clamps.

The bending-slide is retained between the barbing-dies and clamps by means of a stud, a, Fig. 4, projecting from the rib of the clamp K into a notch cut in the edge of the bendingslide, as shown in said Fig. i. A portion of the barbing-die H is represented as broken away, that the notch and pin may be seen. The binding-plate in said Fig. 4. is shown as removed, but in place in Fig. 5. It will be noticed in said Fig. 4- that the barbing-dies project beyond the periphery of the disk. In this position they are maintained by the setscrew 0, projected through the disk to a bar, P, on which the barbingdies stand, and thereby prevented from being forced radially inward, but which may be forced outward by the adjusting-screw O acting on the said bar. It will also be noticed that the bendingslide projects beyond the barbingdies; in this relation to the said .dies it is maintained by a spring, Q, passing upward through the bar P to the end of the bending-slide, and upon said spring the slide rests, and is thereby forced radially outward, for a purpose presently shown.

B is a disk corresponding to the disk G, and arranged in relation therewith, as shown in Figs 1 and 3. Said disk R is secured to the main shaft D, and is provided with harbingdies corresponding to the barbing-dies of the disk G, and co-operate therewith for barbing a staple, as hereinafter described. The barbing-dies iusaid disk B may be secured therein, substantially in the same way as are the barbingdies in the disk G, or they may be secured therein by any other suitable device and made adjustable by a set-screw and bar. In the disk B there is no bendingslide, but a firm base between the barbing-dies, so that the wire.

when the two disks revolve one upon the other the projecting end of the bending-slide of the disk G will pass between the barbing-dies of the disk R and impinge upon the base between them, which will force the bending-slide back into the disk that it may not project be yond the barbing-dies while barbing a staple. Further attention will be called to this part of the operation of the disks.

On the extreme end of the shaft D is an cecentric, U, Fig. 3, provided with an arm, V. To the end of the arm is connected one end of a link, W, whereas the opposite end is pivoted to a block, A, and the middle thereof is pivoted to a cutter-bar, B, for operating the cutter O. The cutter-bar is arranged to move in the guide or ways D. An enlarged detached view of the cutter is shown in Fig. 9.

The wire-cutting device is adapted to cut the wire diagonally across, to obtain a pointed end to the prongs of the staple. For that purpose the wire is run through a tube, E,Fig. 2. An enlarged detached view of the same is shown in Fig. 9, in which it will be observed that the end of thetubeis cut diagonally across, forming an inclined plane, to which the cutter is adjusted. It will be obvious that as the wire moves through the tube it will be cut off by the cutter as the cutter moves over the end of the tube at an a gle corresponding to that of the end of the tube or the inclined plane, which will give pointed ends to the prongs of the staple made therefrom.-

The wire is fed to the machine by thelever F, pivoted in the standard G by a link, I, The lever F is connected to a lever, H, pivoted in a standard, J. The inner end of the lever H extends to and terminates between the cheeks of the cam K, as shown in Fig. 2. Said cam is secured to the shaft D,and vibrates the lever H; also the feed-lever F, connected thereto by thelink I. On the end of the feedlever is a block, L,having a hole therein large enough to admit the wire 61 to pass freely through. In, said hole may be serrations or teeth pointing toward the cutter, so that as the lever vibrates horizontally the wire is cramped in the block, and by means of the inclined teeth,

the said wire is carried along in the direction of the arrow, but will slide over the wire when the lever moves in the opposite direction, as the hole in the block will then cease to cramp The stroke of the lever is of sufficient length to carry the wire far enough along for a stapleblank. That the wire may not move too easily, also to steady and give tension to the same, that it may be fed to the ma chine without bending or kinking, it is passed 'under the arm M, to which is hung a weight,

N, that the wire may draw with more or less resistance and consequent tension.

The two disks G and R are operated by the cog-wheels O and l? on the shafts D and E, power being applied to the shaft D. On said shafts D and E are respectively the fly or balance wheels Q and B.

Having described the several parts of the machine and the arrangement of the same, the practical operation thereof is as follows:

The wire of which the staples are to be made is taken from a reel and passed under the lever M, thence through the block L of the feed-lever, the vibration of which carries the wire forward through the tube E, thence in front of the bending-block it, across the notch in therein, as shown at a in Fig. 1. At this instant the wire is cut off by the timely movement of the cutter during the general movement of the machine. The wire or staple-blank thus cut off is caught by the end of the bending-slide, which at this moment is about to enter the notch m of the bendingblock. As the end of the slide passes through the notch a, the piece of wire or blank is bent thereby against the sides of the notch, forming a staple around the endof the slide, and at the same time carrying the staple along, bringing the prongs thereof between the barbing-dies of the upper and lower disks, thereby barbing both sides of the prongs of the staple. While the barbing is being done the bendingslide is pushed inward by its contact with the bottom between the barbing-dies of the lower disk, which releases the staple from the end of the slide, allowing it to drop into a receptacle under the machine. The resiliency of the spring 1 forces the slide again outward the instant the barbing is done and the barbing-dies have passed from each other. During the operation of bending and barbing the staple, the wire is again fed forward and a piece or blank cut off, which is immediately caught.

by the now projecting end of the bendingslide, and, as before, carried through the notch m, and bent and barbed, as in the former instance, and so on continuously, as the wire is fed to the machine. A blank is cut off, bent, and barbed during the revolving movement of the disks and the general operative action of the machine.

The opportune action of the cutter is effected by the eccentric U and arm V, above described. The throw of the eccentric may be so adjusted as to operate the cutter-bar and cutter to out different lengths of blanks as the size of the staples to be made may require, and which, as aforesaid, are cut diagonally across, making a point to the ends or prongs of the staple.

The further purpose above alluded to of the hinder or lever M is to confine the wire, so that it may not push back nor kink when the feed-block of the lever F moves back to take another grip on the wire to draw it forward to be operated on, as above set forth.

It may be proper to remark here that the blank for a staple when out off is retained momentarily in position against the bindingblock n until the bending-slide strikes it by a pressure-foot, (not shown in the drawings, as it forms no part of this invention,) and is similar to those used in all machines of this class, difi'ering from such only in being adapted to its place, and is operated by suitable mechanbetween said plates or dies, and retained therein by a. notch and pin and in a projected position for bendingastnple-blank byaspring, Q, substantially in the manner as described, I5 and for the purpose specified. v

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE RUMSEY.

\Vitnesses:

H. BAAGKES, J. H. BURRIDGE.