US461392A - Jack for sole-leveling machines - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

O. K. PURDY. JACK FOR SOLE LBVELING MACHINES.

No. 461,392. Patented Oct. 13, 1891.

aww 9 W (No Model.) 2 Sheets-Sheet 2. O. K. PURDY.

JACK I'OR SOLE LBVELING MACHINES.

Patented Oct. 13, 1891.

To all whom it may concern:

UNITED STATES PATENT OFFICE.

OSCAR K. PURDY, OF LYNN, MASSACHUSETTS, ASSIGNOR TO THE TRIPP GIANT LEVELLER COMPANY, OF PORTLAND, MAINE.

JACK FOR SOLE-LEVELING MACHINES.

SPECIFICATION forming part of Letters Patent No. 461,392, dated October 13, 1891. Application filed September 19, I890. Serial No. 365,540 (No modal.)

Be it known that I, OSCAR K. PURDY, a subject of the Queen of Great Britain, residing at Lynn,county of Essex, State of Massachusetts, have invented an Improvement in Machines for Beating Out or Leveling Soles, of which the following description, in connecliOn with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention has for its object more especially to improve that class of beatingout or sole-leveling machines represented in United States called the Little Giant.

The machine referred to has a pivoted spindle provided as its upper end with an iron last, on which is placed the boot or shoe the sole of which is to be beaten out or leveled, and a pivoted head having at its lower enda metallic form, the under side of which is molded or shaped to correspond with the shlape it is desired to give to the face of the so e.

My improvements are aimed more especially to providing the said machine with a jack whereby the shoe while yet on the regular last, may be applied to the machine and the last he jacked quickly, so that'the sole of the shoe maybe beaten out or leveled. To do this, the spindle of the machine has a head at its upper end, which is grooved for the reception of carriages containing one a toerest, and another a heel-holder, and another a last-holding pin. The carriages holding the toe-rest and the heel-holder are provided with means whereby they may be simultaneously adjusted one toward the other. The toe-rest.- and the heel-holder are each made vertically adjustable. The carriage having the last-holding pin has combined with it means for moving the said carriage'toward the carriage having the heel-holder, whereby the last may be firmly jacked prior to the action of the usual form or forming-plate on the sole.

Figure 1, in side elevation, partially broken out, shows part of a spindle provided with a head having carriages applied thereto to constitutea jack; Fig. 2, a partial section taken below the dotted line as m, Fig. 1; Fig. 3, a de- Letters Patent No. 296,480, and

tached View of the carriage having the lastholding pin; Fig. 4, a partial right-hand end view; Fig. 5,a cross-section of the toe-restin the dotted line as; and Fig. 6 represents my invention as applied to one well-known form of leveling machineviz.,' that shown in United States Letters Patent No. 296,486.

Referring to the drawings, the fra me-work A, the rock-shafts l3 and E the arms (Z and (Z connected, respectively, to the said rockshafts and having, respectively. sectional gears (Z and (1 engaged and actuated by worms c 03 fast on an operating-shaft Z, having a bevel-gear Y, engaged and rotated by a bevel-gear X on a rotating shaft B, and the spindle-7L and form 0 are and may be all as in the said patent. Herein, however, instead of the last shown in said patent as mounted upon the upper end of said spindle I have provided the spindle with a head a, which, as represented, is connected to a flanged part h of the spindle by suitable set-screws h extended through. cars a, of the head and abutting against the flange h. The head a is represented as grooved longitudinally for a sufficient distance to receive within it the carriages band 0, the foot of each carriage being preferably of dovetail shape to fit a correspondingly shaped groove in the head. Each carriage has screw-threads to engage the threads of a right and left threaded screw d, having a collar which rests in a suitable bearing d, so that when the said screw is r0- tated by the handle (1 it will not be moved longitudinally, but will cause the carriages b and c to be simultaneously moved toward and from each other to thus adapt them to the length of last or size of boot or shoe to be acted upon.

The carriage 1) receives Within it, as represented, the threaded shank of a-rod b, in the top of which is seated a toe-rest b the said toe-rest being preferably of ball shape at its lower end to enter a ball-shaped seat in the rod 1), thus enabling the toe-rest to tip somewhat to adapt itself to the requirements of the upper of the shoe on the last Z. The rod 1) receives upon it a nut 19 made as a wheel, which rests upon the 7 upper end of the carriage b, rotation of the said nut in one or the other direction raising or lowering the rod,

the rotation of the rod being, however, restrained during such movement of the nut by means of a pin or projection 2, (shown in Fig. 5,) which enters a longitudinal slot 3 in the rod.

The carriage 0 receives within it the shank c of the heel-holder c concaved at its inner side to substantially fit the heel endof the last and the upper to thereon, a representing the sole attached to the said upper, which sole is to be beaten out or leveled, as provided for in the said patent, it being understood that a presser or form carried by an arm of a rock shaft will at the proper time be caused to act upon the sole and beat out orlevel the same, as provided for in the said patent. The shank c of the heel-holder c is vertically adjustable it. the carriage c and is held in adjusted position by the screw 0 extended through the carriage, its inner end bearing against the shank c.

The head receives and supports a carriage e, having a post 6', the shank ofwhich is screw-threaded and engaged bya nut 6 Whereby the said post may be raised and lowered, as described, of the barb. The post 6 has a concaved seat in which is entered the spherical lower end t of the last-supporting pin a (represented by dotted lines in Fig. 1,) which pin enters the usual hole in the last. The

lower end of the carriage e is cut away, asat 6, to surround loosely the scre\v d,so'that the latter does not in its rotation move the carriage e. The carriage 6 receives through it a rod f, to the left-hand end of which is pinned at '7 a lever f, having a cam projection f which is adapted to work upon or against a surface 8, forming part of the carriage c, the movement of the said lever in one or the other direction horizontally about its fulcrum 7 causing the rod f to be moved longitudinally. WVhen the lever is in the position, Fig. 2, the rod fwill be drawn to the left, Fig. 1, to thus cause the carriage e and the pin 6 to be moved toward the carriage c to firmly bring up or seat the heel end of the last and the upper thereon closely into the heel-holder c preparatory to the action of the form or forming plate referred to but not.

shown, upon the sole of the last. I have shown the rod fas surrounded, each side the carriage e, by springs gg, the outer end of spring g abutting against a pin 10, while the lefthand end of spring g abuts against the carriage 0. These springs avoid shocks and permit a certain amount of yield to the carriage, according to variations in thickness of the upper. The sole form to act upon the sole u being fully shown in the said patent, renders it unnecessary to show the same in the accompanying drawings. It will be understood that the post or spindle h will be rocked or moved substantially in accordance with the patent referred to. The spring 9 in practice is the stronger. The spring 9 serves the purpose of quickly moving the carriage e away from the carriage 0 when the lever f is turned over to the left or in the position opposite to that shown in Fig. 2. Vhen the lever f is-turned into the position, Fig. 2, to jack the last and shoe thereon, the toe of thelastis more firmly seated in the toe-rest.

' Owing to the rod f, which is extended through the carriage c, it will be understood that the carriage c will be moved with the carriage 0; but the carriage e, by the level-f and spring g, may be moved a slight distance independently of the carriage c for jacking purposes.

I claim- 1. Thelongitudinally-groovedhead, the iongitudinally-movable carriages b 0, adapted to slide on the said head and provided with screw-threads, and'the right and left threaded screw d to engage and move the said carriages simultaneously in opposite directions, combined with the threaded rod 1), having-a seat in its upper end, the-toerest having a ball-like shank and seated loosely in the said rod, the nut b pin 2, and aheel-holder carried by another of said carriages, to operate substantially as described.

2. The head,the carriage amounted thereon, and a toe-rest, combined with the post e, having a concaved seat in its upper end and a slotted screw-threaded shank, and a nut rotatable thereon to adjust it vertically, and with the last-holding pin e seated in the concave seat of the said post, to operate substantially as described.

The head a, a toe rest, the carriage c, having the heel-holder c and the carriage e, having the post and last holding-pin, combined with the rod f, extended through said carriage e, and the cam-leverf, pivoted to one end of said rod, to operate substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

I OSCAR K. PURDY. \Vitnesses:

GEo. W. GREGORY,

EMMA J. BENNETT.

Images