US269841A - Lasting-machine - Google Patents

Description

4 Shuts-Sheet 1-.

(No Model.)

M. R. ETHRIDGE. LASTING MAGHINB.

Patented Jan. 2, 1883-.

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- M. R. ETHRIDGE.

LASTING MACHINE.

Patented Jan. 2, 1883.

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(No Model.)

M. R. ETHRIDGE.

LASTI'NG MACHINE.

Patented Jan. 2, 1883.

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LASTING MACHINE.

Patented Jan. 2, 1883.

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UNITE STATES ATE T rrrcn,

MARTIN R. ETHRIDGE, OF LYNN, MASSACHUSETTS.

LASTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 269,841, dated January 2, 1853.

Application filed August 14, 1882. (No model.)

To all whom it may concern Be it known that I, lVIARTIN R. ETHRIDGE, of Lynn, in the county of Essex, of the State of Massachusetts, have invented a new and useful Improvement in Machinery for Lasting Boots or Shoes; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figure 1 is a top view, Fig. 2 a side elevation, Fig. 3 a longitudinal section, and Fig. 4 a-transverse section, of a machine embodying my invention. The remaining figures, 5, 6, 7, 8,,and 9, are hereinafter described.

The invention consists in the details of construction hereinafter pointed out.

In the drawings, A denotes the frame of the machine, it being provided with two posts, B O, for the support of a last with an upper upon it. Each of these posts slides vertically in a guide or standard. D, and rests upon a rotary circular-shaped cam, E, extending into the standard and underneath the lower end of lar inclined portion of the cam. In Fig. 1

each cam E is partly represented in dotted lines. 111 Fig. 2 one cam is shown in elevation and in frontot one standard, and with the foot of the post B resting on it, (the said cam,) and the other cam is shown as in rear of its standard. Each cam is adisk inclined on its top in a circular path, it being pivoted at its center to the base of the standard, so as to be readil y revoluble thereon by hand in order to raise or lower the part resting on its annular incline. The base part a of each standard is slotted, as shown at J), to receive one or more clamp-screws, c, which go down through the slot and are screwed into the base (I of the frame. A top view of one of the standards, with its base and clamp-screw, is shown in Fig. 5. On revolving the cam the standard can be forced upward or lowered, as occasion may require, and by means of the slot and clamp-screw of its base the standard may be adjusted either toward or away from the other standard, as may be required.

Pivoted to the frame A are two levers, F F, having their longer arms connected with a pedal, G, in order that when the pedal is depressed by the foot of an attendant the shortproach each other. Each lever has projecting.

from its upperarm an arched piece, H whichis grooved to receive a chain, I, which embraces.

the two arched pieces in their grooves and goes between two grooved guide-rollers, e c, and at its ends is fastened to the periphery of a wheel, f. The said wheel fis supported by a standard, g, and there is fixed to the wheel a gear, 72, that engages with the teeth of a sec toral lever, i, pivoted to the standards. This lever carries a stop-lever pawl, k, that works into the teeth of a stationary ratchet-wheel, l, fixed on the stationary fulcrum of the lever, all being arranged as represented. On mo"- ing the lever in the right direction the wheel f may be revolved so as to cause the chain I to be wound upon it, andin consequence thereof to force inward. the arched pieces H and the upper arms of the levers F F, the pawlleverand the stationary ratchctwheel serving, as may be required, to hold the said levers from moving in contrary directions.

Fastened to each of the upper arms of the levers F (such arm being T- shaped, as shown in Fig. 3) are three jaws, m n 0, whose officc is to turn the upper down upon the insole on the last. The two jaws m 0 are to be attached to the upper part of the arm by means which will admit of their being adjusted to difi'erent distances from the intermediate jaw, 12, as the size of the last may require, the said jaw a being permanently fixed to the lever F.

Secured upon the jaws m n 0 are adjustable gages p, which determine the proper position of the outer sole to the last, the upper and insolo on the upper being lasted. The outer sole, laid between these gages, and in the clamps to be described, will, when thejaws are moved in, be brought by the gages to its proper position for be ng tacked or nailed to the laps of the upper and to the insole.

Within each set of the jaws at no is another set of jaws, p q 1', which are provided with clamps s, to extend from them, as represented. Fig. 6 is a nearly horizontal section taken lengthwise of thejaws m, a, and 0 and their auxiliaryjawsp, q, and r. from which it will be seen that each of the jaws p, q, and r is supported spiral springs, t, supported by and extending into a screwm, screwed into the next adjacent outerjaw. This screw serves to vary the pressure of the spring against the jaw as circumstances may require. The springs t are placed against the stop-slidess, and alsoother springs t may be arranged to bear against the auxiliary jaws at other points, as shown, giving these jaws a firm but yielding pressure.

Each clamp s has the shape shown, so as to fit over the upper and hold it firmly in place, and such clamp may be provided with a small gravitating toothed pawl, 41, (see Figs. 7, 8, and 9,) the first of such figures beiiig a top view, the'second a bottom view, and the third a longitudinal section, of'the clamp and its pawl. The pawl is arranged within and pro jet-ts down through the clamp, and is pivoted to it. As the jaw carrying the clamp moves inward the pawl catches the leather of the upper and aids the clamp in forcing it forward, the clamp subsequently extending over and holding the lap of the upper down upon the insole. On thejaw recedii'ig from the leather the pawl will readily pass out of it, being carried off with the clamp and jaw.

Held to the ends of arched pieces 11 and an arm extending from post B is a slide, L, to which is attached an adjustable fork, K, adapted for holding the heel of the boot or shoe.

To last an upper by the machine, the last, with the upper on it, is to be placed bottom upward upon the tops of the posts B O, with the heel part of the upper within the adjustingiork K projecting from the slide L, supported by the post. The prongs ofthe said fork should be adapted to the slide, so as to be adjustable toward or from each other as the size of the shoe may require, and the slide is to he so applied to the post as to bemovahle toward and away from the other part. On moving the slide toward the opposite post and up to the heel part of the upper the upper and last can be adjusted in position for the jaws to act against the upper. Next, both sets of jaws are to be caused simultaneously to approach the upper and last. In so doing they will stretch the upper firmly on the last, and the outer jaws will crowd it down upon the insole, the clamps being forced over and upon the laps, so as to hold them firmly down. After tacking down the lap at the toe and heel and paring down the laps, where necessary, at the bends thereof, the attendant is to lay the outer sole between the gages and to force down the pedal, so as to bring the outer sole and insole and last into their correct relative positions. Having done this, he is to drive nails through the outer sole, the laps, and into or through the insole. The shoe thus lasted and prepared is next to be removed from the machine. and further treatcd,as herein before mentioned.

In the said machine I claim as my invention as follows:

1. In a lasting-machine, the combination of the inner sets of jaws and their clamps with the outer sets ofjaws and their sole-gages, such inner jaws having stop-slides and being applied to the outer ones, the latter having mechanism for forcing them inward, and the springs for supporting the iunerjaws, all being to operate substantially as set forth.

2. In a lasting-machine, the combination of the posts B (J and the fork K, adjustable as described, with the inner and outer sets ofjaws, provided with clamps and sole-gages, mechanism for operating the said jaws, the inner jaws having stop-slides, and the springs for supportingsuchjaws, substantially as set forth.

3. In a lasting-machine, the combination of the toothed pawl 'v with each of the jaw-clamps s, such pawl being applied to the clamp in inanner and to operate substantially as set forth.

4. In a lasting-machine, the combination of the sliding posts B C with the adj ust-able standards D and the rotary cams E thereof, arranged with such posts, as set forth.

MARTIN ,l-t. EIHRIDGE.

Witnesses:

1t. El. EDDY, E. B. PRATT.

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