US90650A - Improved hand-nailer for lasting boots and shoes - Google Patents

Description

UNITED STATES PATEN'IMQEEIGII'..

WILLIAM E. FISCHER, OF BOSTON, MASSAOHSETTS, ASSIGNOR TO HIMSELF AND G. H. JOHNSTON, OF SAME PLAGE.

IMPROVED HAND-NAILER FOR LASTING BOOTS AND SHOES.

Specification forming part of Letters Patent No. 90,650, dated J une 1, 1869.

To all whom it may concern:

Beit known that I, WILLIAM E. FISCHER, of Boston, in the county of Suffolk, and State of Massachusetts,have inventedan Improved Hand-Nailer for Lasting Boot-s and Shoes, Ste.; and I do hereby declare that the following, taken in connection with the drawings, which accom pany and form part of this specitcation, is a description of my invention sufcient to en. ble those skilled in the art to practice it.

The invention relates particularly to the construction of machines for cutting and driving lasting-nails, in lasting the uppers of boots and shoes to their inner soles, preparatory to securing the outer sole to the vamp and inner sole.

Hand-peggers have been made to some extent in which by the. blow of the piston or driver a peg was out from a strip of peg-wood, and was driven by the same blow, and there have been of late devised hand-nailers, in

which from a band or ribbon of metal a naill is cut and driven at each blow of the piston or driver.

It will be seen, therefore, that myinvention is not broadly in a mechanism so organized as to automatically cut a fastening device from a blank and drive it by or at each descent of the driver. In my nailer, however, I use a peculiar nail-forming blank, and it is in the organization that feeds this blank into position for the action of the cutter, in the method of operation of the cutter, and in the arrangement of the driver, that my invention consists.

To the blank itself I wish it to be clearly understood I herein make no cla-im, as it is no part of the invention forming the subject of the present specification, my intention being to ask for a separate patent upon such blank. The drawings represent a nailer embodying the invention.

A shows the same in bottom view. B is an elevation of it. C is a vertical central. section of it, but showing the driver in elevation. D is a section on the line w x. c denotes a tube or cylinder, in which reciprocates a plunger or piston, b, at the bottom of which is a driver, c, which works through the bore of a nailtube, d, this tube also sliding in the tube or cylinder a, the point or nose cof the nail-tube being pressed against the edge to be nailed.

On one side of the tube or cylinder a, and fixed to the cylinder by a clamp or coupling, j', is a box, g, for containing thecoil, ribbon, or blank from which thenails are to be cut,this box having a swinging gate or plate, h, which forms the bottom thereof, but which by being swung around upon the pini opens the box for introduction of the blank. On one side of the box is an opening, k, through which the end of the blank passes or is led from the box between the lips of a guide, Z, and through a slit, m, into the nail-tube.

The nail-blank n is formed something like a comb-that is to say, itis composed of a series of tapering teeth, o, united by a top-piece, p, as seen at B, each tooth being the shank of a nail, the head of which is formed of the part to be cut oft' with the shank.

The blank is fed by the point or tooth q of a spring or spring-pawl, a", which, being'fast ened at its upper end to the cylinder a., extends down therefrom andA is bent around and has its point lying or pressing against the blank. The feed-spring is pressed outward by the action of one arm ot' a lever, s, whose other arm extends into a slot, t, in the shank ot' the nose-piece or nailtube d. When the cylinder c is pressed down the lever throws out the springr and draws back the blank, while when the cylinder is thrown up the spring is released from the lever, and by its recoil thrusts the end of the blank forward through the slit and into the nail-tube, Just below this slit a'cutter, u, is iixed on one side of the nail-tube, which is cut away, t-he upper or cutting edge .of the cutter lying in the plane of one side of the nail-tube bore, so that as the cylinder is pressed down the cutter enters between the tooth forced into the nailtube and the next adjacent tooth. The descent of the cylinder forces the cutter against the band of union at the top of the teeth and severs the end nail from the blank, the separated nail being thus n thereto, and then forces the lever s against the feed-spring or pawl, carrying back the pawl-tooth, and as the cutter is between the teeth of the blank, the blank is thereby held stationary, while the paWl-tooth slips back, the paWl-tooth thus coming into position against the blank to again feed the blank at its next forward movement.

The cylinder a and the driver-piston Z are both held up or in their respective normal positions by the stress ot' the spring u', the upper end of which bears against a flange on the piston, and its lower end against the top of the nail-driver tube, as seen at O.

The cutter u is made a little tapering and with its opposite edges dovetailing, and it sets in a correspondingly-tapering and dovetailing groove in the side of the nail-driver tube, and as the cutter-edge becomes dulled the cutter is removed, ground down a little, and again driven into its socket, bringing a new portion of the cutting-edge into position; or the edges of the cutter and the grooves may be made parallel, and the cutter be driven endwise as any acting portion of its cutting-.edge becomes dulled by severing the nails.

1. I claim the combination of a stationary cutter, a sliding nail blank holder, and a sliding nail-driver, when arranged to operate substantially as described.

2. I also claim a nail-cutter and driver in which the nail-blank is composed of a series of shank-forming teeth united at top, each tooth being severed from the blank, (to be driven,) substantially as described.

3. I also claim the feed-spring or pawl, operating to present the end of the nail-blank to the action of the cut-ter, substantially as described.

WM. E. FISCHER.

Witnesses:

J. B. CROSBY, FRANCIS GoULD.

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