US108735A - Improvement in machines for making staples - Google Patents

Description

mains nifni'ris s'rngxn, on .'r'n'isin' cirv, Xi-:w .Tansini 'IMPROVEMENT'IN MACHINES r-onA MAKING STAPLES.

I Npceilt'ution forming pari of Letters Patent No. 108,735, dated Urteilen-1F70.

To all whom it may concern:

Be it known that l, Janes C'Ln'ris S'ijnin,

4of Jersey iity, in the county of Hudson and State of New Jersey, have invented anew and Improved Machine ibrhaking Staples, andI do hereby declare that the ibllowing is a full, clear, and exact description of the saine, reference being had to the accompanying draw,- ings,and'to the lettersrot reference marked thereon, making apart of this specification.

This inventionl rela-testo a new andl improved construction and combination of certain part-s, hereinafter shown and described,

whereby an eficicntmachinc is oliitained for the purpose of making staples.

The most essential feature of the invention consists of a rotary bender for bending the blanks as they are eut from the rod, and using in connection therewith cutters so constructed and arranged as to cut the rod -obliqnely and form sharp ends to admit of the staples being readily driven into the wood.

The invention also consists in the combination of a feed mechanism with the parts above named; and,further, in an improved construetion of detail parts, as hereinafter set forth,

whereby the efficiency of themachine is greatly enhanced.

In the accompanying sheets' of drawings',

.Figure 1, Sheet No. l, is a plan -or 'top view of my improved machine. Fig. 2, Sheet No. j

2, a transverse vertical section of the same, taken in the line a', Fig. 1. Fig. 3, Sheet No. 2, an endelevation of the same. Fig. 4, Sheet No. 1, a port-ionot the plan or top View, Fig. 1, with the cover of the cutters removed 'in order to vshow the latter clearly.. Fig. 5, Sheet No. 1, a detached view of a blank cut from the rod. Fig. 6, SheetiNo.1.,'a det-ached.

View of a staple.

Similar lettersot' reference indicate corresponding parts inthe several iigures.

The framing of the Amachine'consists of a top and bottom plate, A B, connected by i1p.

right posts a' and two upright standards, C C, in which are the bearings of a horizontal shaft, D, from which inotionis communicated to the several parts ofthe machine.

On the shaft I) there is keyed a wheel, E,

' which has an arm onprojectiomb, extending from its periphery, said arm and the upper 'part of the wheel working through a slot or opening in the. top plate, A, of the framing,

v,as shown clearly in Fig. 2.

F represents a cast-iron head, which is firmly secured to the top plate, A, and is provided with a recess extending its whole length te receive the cutters G lil-thc former, G, being stationary or fixed, and the latter, H, a sliding one, both cutters having an oblique cutting-edge, and one working direetl y over the .jother, as shown in Fig. 2.- The sliding cutter H 1s iitted into a stock, 0,' and secured therein, by a set-screw, d, as shownin Fig. l.. This arrangement admits of said cutter being adjusted to compensatefor wear. The iixed cutter G may also be adjusted for thev same purpose bymeans of set-screws e c', as shown in Fig. 1. Both cutters- (t H are kept down in proper place in the recess in the head F by sliding cutter H is operated by a. cam, I, on thez'shaft D, said cam acting aga-insta jointed arm or lever, J, to give the cutting motion, the return motion being given by a spring, K. (See Fig. 3.)

The staples are made from a rod or wireof 'a suitable thickness, said rod or wire being` fed through a tube, L, formed of two parts, g g', which are in line with eachother, a space being allowed between the adjoining ends ofthe two parts to leave a portion of the rod or wire exposed, so that it may be acted upon by t'wo vfeed-rollers, M M', which press against it 'at opposite sides. The feed-rollers are keyed .on the upper ends of upright shaftsNN,

which are connected by gears O O near their lower end s. The shaft-N hasaratchet-wheel, P, on its lower part into which pawls Q work, said p'awls being fitted in a lever, R, which is connected by a link, S, with a sliding rod, T, fitted in bearings h h on the bottom plate, B,

oil the framing of the `machine. A pendent lever, U,.engages at itslower y,end with the sliding rod T, and against this lever a carin. YV, on' the shaft D acts, said cam giving thev 'feed motion to the feed-rollers, the return motionbeing given by a spring, \V. A screw stop, ,'limits the movement ofthe'sliding rod -T in thedirection, (indicated by the arrow 1,)

while the movement of the sliding rod in .thev

oppositedirection (indicated by arrow 2,) is limited by a screw-stony', the latter, by its adjustment, controlling tlie feed movement of the rod or wire, and admitting of staples of greater or lesser length being made. The rod or wire, (indicated by the dotted lines in Figs. 1 and 4,) passes through the tube L, and the head F also passing through a socket in the latter, which leaves its `upper part, or rather an oblique half, exposed to the action of the upper cutter, H, which `is the slidingione. This will be understood by referring to Fig. 2. In one end of the headF there is inserted a steel plate, Jr, and asimilar steel plate, k, is inserted in a cast-iron head, X, on the top plate, A, of the framing. These steel plates k k may be tted in dovetails in the heads F and X, to admit of their ready removal and replacement by new ones, when required.

Y is a cast-iron stop secured on the top plate, A, by a set-screw, 1, and having a slot,

` m, made in its face side to receive theiobf quely-eut end of the rod or wire. This stop Y limits the feed movement of the rod orwire,

while the slot m prevent-s it from vturning while v being acted upon by the rotary bender E.

The operation is as follows: The cani Viirst acts against the lever U, and the feed-rollers M M :nove thc rod or wire along until its obliquely-cut end enters the slot m of the stop Y. The feed movement then ceases, and the sliding cutter His moved forwardunder the action of the cani I, and able-nk is cut from the rod or Wire. The projection b of the rotary bender them comes in contactwith the blank and bends the latter in' staple form between the fixed plates k k. i l

I would remark that the 'upright shaft N has a spring, Z, bearing. against its upper end to cause the feed-rollers M M to press sufficiently against the rod or wire'. Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is`- The combination of the feed-rollersM M', cutters Gr H, rotary bender E, fixed bearings l.: k', and the slotted stop Y, all constructed 'and arranged in the manner substantially as and for the purpose set forth.

JAMES C. STEAD.

Vitnesses:

Arlt. HAIGHT, G. M. ACKERMAN.

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