US252525A - Shoe-maker s jack - Google Patents

Description

clamped together.

UNITEn STATES PATENT OFFICE.

FRANK SGHIPPER AND LUKE DOBEL, OF AURORA, INDIANA.

SHOE- MAKERS JACK.

SPECIFICATION forming part of Letters Patent No. 252,525, dated January 17, 1882.

Application filed September 24, 1881. (No model.)

To all whom it may concern Beit known that we, FRANK SoHIPPER and LUKE DOBEL, of the city of Aurora, in the county of Dearborn and State of Indiana, have invented certain newand useful Improvements in Shoe-Makers Jacks, of which the following is a specification.

The object of this invention is to provide a device which is adjustable, so as to bring the article held thereon to any desired position, that the operator may conveniently perform all the different operations of lasting, and also of sewing, pegging, or nailing on the soles, heeling, trimming, burnishing, and finishing, thus completing the article without necessitating its removal from the time it is put on until it is finished. This object is accomplished by the means illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of our improved device, except the cylindrical cross-head, which is shown in axial section. Fig. 2 is a vertical transverse section taken in line a m of Fig. 1.

Thejack and cross-head are supported by a hinged base consisting of a stationary part, A,and asemi-rotating part, 0, journaled upon a bolt, B. The stationary part is secured to a table or bench by screws passing through its circular foot, and has projecting from its top, upon one side, a plate or disk, A, which is centrally perforated to receive the journal-bolt B, which passes through it, the piece G, and a circular cap, D, and has a thumb-nut, B, on its screw-threaded end, by which the parts are The circular part of piece 0 is cast with a central depression to reduce friction and to leave a space for the spurs c a a, the first being cast upon piece 0 and the latter upon piece A. The purpose of the spurs is to limit the movement of piece (3, stopping its shaft in a horizontal position when it is turned down upon either side. The upper end of pieceAconforms to the peripheries of pieces 0 D, and has a depression to receive a spur which projects from the edge of piece D to prevent the cap from turning when the screw is turned to clamp or loosen piece 0. The abutting faces of pieces A GDareplaned or turned off smooth. The shaft of piece (3 is bored from the top to a transverse perforation above the disk part to receive the journal of cross-head E, which passes through the perforation, and

is screw-threaded at its lower end to receive out 6, by which the cross-head is held in place. The cross-head E is bored to receive the shaft of heelsupporting piece F, which passes through it and has upoii one end the gooseneck Gr, upon which is fitted the toe-piece E. This is adjustable to adapt the device to be used for allsizes of boots and shoes. The parts are secured together by a nut, f, upon the end of the shaft. In the upper slotted end of the heel-support is journaled a piece, I, which has projecting from its upper side the customary last-pin, i. To the side of this piece is secured a spring, J, the lower end of which bears against the upright shaft, and is kept in place by a screw which passesinto the shaft through the bifurcated end of the'spring.

The upper end of piece 0, the end of piece .E, and the interior of thumb-nut B are counby placing a block under the bend in the piece F when the device is in the position shown in the drawings; but ordinarily the cross-head is rotated upon its shaft to a position at right angles to that shown in Fig. 1, and shaft of piece 0 turned down until spur c rests upon spur a, when the jack-head is rotated a quarter of a revolution. This brings the lower end of the heel-support upon the table or bench.

It will be seen that a boot secured upon our jack may be readily turned so as. to present any side to the operator, and hence need not be removed until it is entirely finished.

Having thus described our invention, what we claim is-- 1. In a shoe-makers jack, the combination, substantially as specified, of a hinged supporting-stand and a jack-supporting head, as E, C, E, F, Gr, and H, arranged to operate as speciadapted to receive th'elast-supporting parts and fled.

swiveled to turn in the supporting-stand with a. the last-supporting parts fitted to turn in piece E, as set forth.

2. In a shoe-makers jack, the combination, Witnesses:

' substantially as hereinbefore set forth, of sta-' GEO. RENNER,

tionary parts A A B D and the movable parts DAVID B. BEATY.

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