US334604A - Morton - Google Patents

Description

(No-Model.) 2 Sheets-'Sheet 1. E. s. MORTON.v v WIRE NAIL MACHINE.

Patented Jan. 19, .1886.,

. Ehm- A OWN@ lill..

(No Model.) 2 Sheets-Sheet 2.

' Re. MORTON.

i WIRE NAIL MACHINE.

No. 334,604. Patented Jan. 19, 1886..

Wn-N ESSES:

Fige.

UNITED STATES PATENT OFFICE.

EPHRAIM S. MORTON, OF PLYMOUTH, ASSIGNOR OF ONE-HALF TO SAMUEL LORING, OF DUXBURY, MASSACHUSETTS;

WIRE-NAIL MACHINE..

SPECIFICATION forming part. of Letters Patent No. 334,604, dated January 19, 1886.

Application filed November 6, 1884. Serial No. 147,279. (No model.)

To all whom it may concern:

Be it known that I, EPHRAIM S. MoRToN, of Plymouth, in the county of Plymouth and State of Massachusetts, have invented certain Improvements in Wire- Nail Machines, of

-which the following is a specification.

This invention relates to machines whereby headed wire nails or rivets may be formed from a continuous length of wire by the co- [o operation of feeding mechanism which moves the wire forwardintermittently, gripping-dies that alternately grasp and release the wire,

y cutters which sever the wire at a point near the gripping-dies, and thus detach each nail.

and a header or hammer that upsets the end of the wire against the gripping-dies, thus forming the head of the nail detached by the next operation of the cutters.

The invention consists in making the gripzo ping-dies adjustable toward and from the cutters and header, and providing means for positively holding said dies in any position to which they may be adjusted. I am thus en` abled to vary the size ofthe head formed by the header, the distance of the gripping-dies from the cutters, determining the amount of wire left projecting from the gripping-dies to be upset into a head, as l will now proceed to describe.

3o Of the accompanying drawings, forming a part of this specification, Figure l represents a top view of a nail-machine provided with my improvements. Fig. 2 represents a longitudinal section of the same on line x x, Fig.

55 1. Fig. 3 represents an enlarged top view of the portion of the .machine to which my present invent-ion relates. Fig. 4 represents a top View of the lower gripping-die. Fig. 5 represents a bottom view of the upper gripping- 4o die. Fig. 6 represents a modification.

The same letters of reference indicate the same parts in all the figures.

In the drawings. A represents the supporting frame or bed of the machine.

a b represent the gripping-dies,which grasp the nail wire t' while it is being headed. The lower die, a, is capable of moving horizontally toward and from the cutters g g and header h, hereinafter described, said die a restingloosel y 5o on ahorizontal seat, c.

cl d represent adjusting-screws,which work in tapped sockets in a lug, d,on the bed A and bear against the rear side of the lower die. By turning said screws in one direction they are caused to force the die a (with the upper die, which rests in recesses formed for it in the upper surface of the lower die) forwa-rd toward the cutters g g, while by turning the screws d d in the opposite direction they permit the gripping-dies a b to be moved 6o backwardly or away from the cutters. The dies a b are positively held at any point to which they may be thus adj usted by any suit able means-as, for example, by `wedges e e, inserted between the sides of the lower die, ci, and two ixed lugs,f f, on the bed A, as shown in Fig. 3; or, if preferred, by a setscrew, c', working in a tapped socket in one of said lugs and bearing against one side of the lower die, a, so as to press the other side of 7o said die against the other lug f, as shown in Fig. 6. The upper die, b, rests loosely on the lower die, so that it exerts no pressure on the wire between said dies, excepting when pressed downwardly by a cam, c', arranged over it on 75 a rockshaft,f, which is journaled in the lugs ff, and has an Varm or lever, g', at one end, which is pressed upwardly by a Spring, lz', against a cam, il', on the driving-shaftj, hereinaftcr described. The cam c' depresses the 80 arm g, and thus causes the cam e to press the upper die downwardly once during each rotation of the drivingfshaft.

g g represent the dies or cutters which sever the wire (or, as l prefer, nearly sever it) and form the usual beveled points of the nails. The cutters g g are secured to slides Z Z,which are fitted to slide in guides crosswise of the. bed a. The slides Z lare reciprocated so as to alternately approach and recede from each 9o other by levers m m, pivoted at 'n n to the bed A, and cams o o on the driving` shaft j, the shorter arms of said levers being engaged with the slide Z, as shown in Fig. l, while their longer arms have studs which engage with the cams o.

h represents the header, which upsets the end of the wire after the separation of a nail therefrom, and thus forms the head of the next nail. The header is a hammer attached 10o 4 to a slide, s, which is adapted to reciprocate in a longitudinal guide-groove in the bed A, and is reciprocated by means of a cam, u,which is continuously rotated by the driving-shaft, and alternately draws back and releases the slide s, by engaging with a, shoulder, s', thereon, and a spring, j, which bears against the rear end of the slide s and forces it forward when it is released by the cam.

The wire from which the nails are made is fed forward intermittently through the gripping-dies by means of any suitable feeding device. It will be seen that by moving the gripping-dies forward toward the cutters I shorten the metal left projecting from the gripping dies after the severing of cach nail, and thus decrease the size of the heads formed by theaction of the header. It' desired, the gripping-dies may be thus moved to the point where the wire is severed by the cutting-dies, so that no heads will be formed on the nails.

The time of the various operations of the machine is as follows: Suppose a nail to have been severed, and the cutting-dies to have separated, leaving a short end of wire projecting from the gripping-dies. The header now advances toward the grippingdies, and the uppergripping-die isat the same time pressed downwardly by the cam c', so that the wireis firmly held while the header is upsetting the projecting end of the wire and forming the head. The header now retires, the cam c releases the upper gripping-jaw` and the feeding device moves the wire along. Ncxtthe cutting dies approach the wire, act on it, forming the point of the nail last headed, and severing it (or, as I prefer, nearly severing it) from the wire, it being found advisable not toallow the cutting-dies to actually meet each other, on ac count of the mutual injuryto their edges from such contact; hence they are caused to leave a. thin neck connecting the nail with the wire. The cutters then separate, and the header again advances, the partially-sevcred nail being knocked oti from the wire by a clearer, r, which strikes the nail before the header reaches it. Said clearer is preferably an elastic strip of metal secured at one end to the bed A, under the slide s, its other end being bent upwardly and projecting forward over the nail last formed. The advancing header strikes an incline on the clearer and dcpresses the end of it, which projects over the nail, causing said end to detach the nail, the header then passing over the clearer and forming the next head, as before. \Vheu the header retires, the clearer springs upwardly to its former p0- sition. The detached nails drop through an aperture in the bed into a receptacle below.

I do not in this application claim any of the features shown and described herein which are claimed in thejoint application of Samuel Loring and myself for patent for wire-nail machine, iilcd March 3, ltSSet, Serial No. 122,821., excepting the matter hereinafter claimed.

I claim- 1. In a wire-nail machine, the combination, with the header, of gripping dies, through which the wire is projected, cutters for severing the wire in front of the gripping dies, and means for adjusting said dies toward and from the cutters, so as to regulate the amount ot' metal between them, substantially as described.

2. In a wire-nail machine, the combination, with the header, of the gripping-dies through which the wire is projected, cutters for severing the wire in front of the grippingdies, and means for adjusting the gripping-dies toward or away from the cutters, so as to regulate the amount of metal between them, and a device for securing thediesin theiradj usted position, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 4th day of November, 1884.

EPHRAJM S. NORTON.

W'ituesses:

W. E. ROGERS, H. C. RoGERs.

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