US271617A - Martlet van buren etheidge - Google Patents

Description

(No Model.)

M. V. B. BTHRIDGE.

SHOE HEBLING MAGHINE.

Patented Peb. 6, 1883.

'Unirse Sterns ArtNr erica vMARTIN VAN BUREN ETHRIDGE, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE ETHRIDGE HEELING MACHINE COMPANY, OF SAME PLACE,

SHOE-HEELING MACHINE.

SLDECIFICATON forming part of Letters Patent No. 271,617, dated February 6, 1883.

Appneanun filed November 29, 1882. (N0-model.)

To all 'whom it may concern:

Be it known that I, MARTIN VAN BUREN ETHRIDGE, of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improved Shoe-Heeling Machine, of which the adjustment ofthe shoe-last, and improvement in the metal heeling-plate and in the manner of releasing the heel.

A specilic description of the various im-v proved parts and their constructionjis as follows, with due reference tothe drawings forming a part of this specification, in which- Figure l is a view in perspective of a machine embodying my improvements, Fig. 2 beingalongitudinal centralse'ction ofthe same. Fig. 3 is a front elevation (enlarged scale) of portions of upper gate-head, frame, and releasing-levers, exhibiting the vertical position of the latter in the upward movement of the gate. Fig. 4 is a similar view illustrating the inclined position ot' the upper lever when the gate is moving downward. Fig. 5 combines a face plan and a longitudinal section ot` heelplate and connecting parts. Fig 6 indicates a longitudinal vertical section in part oflower gate-head, with sliding block, stop-pin, and foot-lever inelevation. Fig. 7 is a side elevation of the last-jack attachment for regulating the horizontal position of wooden shoe-last, with shoe thereon.

Referring to the letters, A A' are the upper and lower gate-heads, united by two guiderods, B B. The vertical movement of the gate is imparted through the rotation of the cam C within a strap, D, secured to the lower gatehead, A', said gate being sustained in its po;

sitions of rest through a properly-regulated friction of its parts.

On the upper and left side ot' the lower gatehead, A', is a sliding block, E, moving in a depressed bed in said gate, and operated through the action of the foot-lever F, to which it is attached by the stud and friction-roll Gr.

A counter-weight, H, is attached to the upper arm of the foot-lever, retaining the sliding block E in its normal position of rest until moved by foot-pressure up against the springcushioned stop-pin I, which retards the movement ot' said block E until the rotation ofthe cam O downward overcomes the resistance of the lifting-spring J and presses the stop-pin I to a level with the lower face ofthe sliding block E, which then moves forward until again retarded by the cam O. In the relative positions of the block and cam the stop-pin I is so arranged that the action of said block and cam is simultaneous in holding the stop-pin (see Fig. 6) until the continued rotation ot' the cam allows the sliding block to pass over the stoppin and assume its position beneath the cam, acting as a stop-motion, for which this device is intended, until the block is released by the foot ofthe operator, and is drawn back to its normal position b v the counter-weightH.

Forming an integral part of' the upper gatehead, A, is a projection, K, the face or under side of which is' provided with suitable guides, n n, or grooved to admit and suspend the adjustablemetal heel-plates M and M', the former of which has an inclined face, smoothly tinished to operate upon the face or top lift ot the heel, and is placed in the guides n it in a position that coincideswith the angle or pitch of the heel to be nailed.

VThe heel-block K is centrally bored to receive the sliding pin N, retained in a proper position by the pushing-spring O. Secured to the rear end of said pin by a grooved or dovetailed recess are the heel and shoe gaging levers P and P ',the latter of which is adjusted through the operation of the thumbscrew Q and sliding bar R, and limits the horizontal movement ofthe shoe or boot on the last-jack standard S. vThe vertical position or height of said standard is regulated by the adjustable index-point and scale T, secured to bed of fraaie.

Keyed to the front end of the sliding pin N are two releasing-levers, V and W, united by a toggle-joint and automatic in their action. The upper lever, W, operates against a projection, b, on the front face ot' the I'ramehead b' when the gate is moving upward, and releases the heel from the clamping-pins a a and heel-gage P after the completed operation of nailing the heel to the shoe. The back of the upper releasing-lever, W, has a diagonal-shaped recess to admit the projection b when said lever has reached its highest point. In thel movement ofthe gate downward the projection b enters into the recess C, and, pressing against the angular wall ot' the same, forces the lever b laterally from its perpendicular position and renders its function inoperative.

Attached to and forming a part of the lastjack standard S, through the medium of a thumb-screw, t, and slot t', is a rocker-lever, x, provided at its upper end with atogglepin, y, which enters the comb ot' the wooden last centrally near the heel. A spring, Z, is rigidly secured to the rocker-lever and is provided with a toe-rest traversing said spring, and is secured at any desirable point, governed in its position by the length or size of the last. The oliice of this spring Z is to insure a stable rest tor the last on the jack, and obviates any oscillation or movementof said last occasioned through undue enlargement of the toggle-pin hole in the comb of the last. The lower end of the rocker-lever wis oli'set and curved radially lrom its point oi' attachment and at right angles with its arm. A set or thumb screw, t, enables the operator to key77 the lever an in any desirable position against 'the base ot', the last-jack standard, changing the angle ofthe shoe or last to suit any variation of the toggle-pin hole in the same.

e e are counterbalancing-weights operating cnnjointly with the cam as auxiliary lifting devices.

In the operation of shoe-heeling the workman forces the sliding pin N with the thumb, (shown at u, Fig. 2,) and places the prepared heel-face upward between the clamping-pins a a and the heel-gage P, so that the exposed nail-heads rest in the depressions oi' the indented recess r in the heel-plate M', with the breast ofthe heel toward the operator. In this position the gate is moved by the combined action of cam and block downward upon the lasted shoe, which latter is gaged to a proper position by the devices T, and P', above described. The upward rotation ot' the cam against its strap D moves the gate upward, instantly a'ctuatil'ig the releasing-levers V and W' and disengagng the heel. At this moment the operator moves forward the last` jack and places the top lift upon the nails, which are left exposed to a length corresponding with the depth ot' the recess r in the heelplate M', the movement of the jack bringing the heel in a vertical line with the center of the angle heel-plate M, to receive on the downward movement of the gate the pressure of said angleplate on the top or face lift, l'orciug it, down on the nails and completing the operation of heeliug.

Having explained the operation of my improved machine, what I claim is 1. In an improved machine for nailingheels, a movable gaie provided with a block, K, hold ing an adjustable and reversible angle heelplate, M, and a recessed heel-plate, M', in combination with the heel and shoe gagiug levers l and l", operating substantially as and for the purpose set forth.

2. In combination with the adjustable heelplates M and M', the sliding pin N, the releasing-leversV and \V,operating the heel gaging lever P, and shoe or last gaging lever P', arranged as set forth.

3. In a heelmgmachine, the automatic releasing-lever V and diagonal recessed lever NV, operating in combination with the sliding spring-cushioned pin N, for the purpose set forth.

4. In combination with an adjustable lastjaclz, a lasting adjustment comprising the rocker-lever m, toggle-pin y, spring Z, and movable toe-rest Z', all substantially as described.

5. ln combination with the rocker lever x and movable toe-rest Z', the toggle-pin y, adjusta ble and operating in the comb ofa Wooden last, as and for the purpose specified.

6. The sliding block E, actuated by the lever F, and the spring-cushioned stop-pin I, in combination with the cam C, producing the downward movement of the gate, all as described.

MARTIN VAN BUREN ETHRIDGE.

Witnesses:

WM. H. MILLER, Jo'rHAM E. MUNROE.

IOO

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