US882556A - Last. - Google Patents

Description

- PATENTED MAR. 24, 1908.

A. G. PITZ. LAST. APPLICATION FILED JUNE 6, 1907.

UNITED STATES PATENT OFFICE.

LAST.

Applicatior filed June 6, 1907.

T all whom 'it may concern:

Be it known that I, Anos ("1. Frrz, a citizen of the United States, residing at Auburn, in the county of Androscoggin and State oi Maine, have iin'entcd new and useful improvements in Lasts, of which the following is a specification.

My invention relates to improvements in lasts.

Lasts used in connection with moderr shoe machinery must be very iirm to withstand the strain upon them. In some ol' the processes through which they pass in the. manufacture of shoes, great pressure is c.\' erted upon them, especially during the time they are supported on the jack or spindle. The tendency ol these asts when subjected to these strains is to s )lll} on horizontal lines of cleavage midway the top and bottom in line with the grain of the last and more particularly at a point at or Il(.t'lI\Vll(l0 the spindle impinges the thimblc, truss or wood of the last, as the case may be. \"arious means have been employed to resist this splitting tendency as for example, transverse trusses extending through the last trom side to side at a point adjacent the bottom of the spindle. These do not however accomplish the desired purpose. The strain even then comes all in substantially the same plane which is the plane of the truss.

My invention is designed to overcome this objection and consists in forming the spindle hole with lateral recesses and mounting therein Ushaped trusses, the vertical parts of which lie in said recesses, the bottom extending transversely across the spindle hole and the ends anchored in the last in such way that the strain of the spindle on the truss is supported at the top of the last instead of midway the top.

1 have illustrated in the drawings some ol the many forms in which my invention may be embodied.

In the drawings herewith aecon'ipanying and making part of this application, Figure 1 isa transverse sectional view of a last taken. through the spindle hole and showing one form ol' myimproved spindle support mounted therein; Fig. 2 is a similar view showing a dill'crent lorm' Fi is a side elevation u 7 h I I partly in section showing still another lorm oi my invention; Fig. l is a transverse. vertical sectional view taken through the spindle its use l claim:

another embodiment of hole showing still 5 is a horizontal my inuw vcmcnt and Fig.

Specification of Letters Patent.

Patented March 24, 1908.

Serial No. 377,534.

section of a portion of a last showing the lateral recesses in the spindle hole and the position of the truss therein.

Same letters of reference like parts. 7

In said drauings A represents the last, B the usual spind e hole. Mounted in the spindle hole is a U-shaped truss, a portion (3 extending across the bottom of the truss, the vertical portions D extending upwardly and lying in recesses E in thes 'iindle hole and the ends F anchored in the last.

in Fig. 1 the ends of the truss are shown turned over and taking into 'the top of the last, as seen at. (i. truss extend down the outsides of the last and are turned upwardly taking into the bottom, as seen at ll. in Fig. 3 the ends of the truss are turned to form eyelets near the top of the last, as seen at .l, and are further supported by pins Ql passing transversely through the last and through said eyelets. in Fig. 4 the ends are turned down to an acute angle with the sides, as seen at are caused to take into diagonally extending holes ll in the sides of the spindle hole. in this case the holes may be below the top of the lastas shown and when so constructe the truss is inserted in the spindle hole by pressing the upper ends together until they clear the upper end of the last, when they pass readily into the diagonal holes expanding as they enter. The truss may be used with or without a thimble .\l. In Figs. 1 and 2%, thimbles are shown, while in Figs. 2 and 4, no thimble is shown. \Vhen a thimble is used it may or may not have a bottom. \Vhcn the thimble has a bottom the spindle rests on the bottom ol' thcthimble which in turn rests upon the truss. \Vhen the thimrefer to ble is bottomless the spindle rests directly on the portion of the truss extending transversely across the spindle hole, as seen in Fig. i. The truss may rest directly upon the bottom of the spindle hole as shown in Fig. l, or it may be spaced apart from the bottom as seen in Fig. 2. it is noted that the sides ol the truss are llush with the walls of the spindle hole. it also noted that the portions of the truss shown in Fig. 2 which pass down on the outside of the last are countersunk, so as to he flush with the sides or the last.

Having thus described. my invention and l. The combination with a. last having a in Fig. 2 the ends of the K, and

seems spindie hole and verticai truss-receiving recesses therein, of a truss extending across the bottom of said hole, its sides extending upwardly and positioned in said recesses and its ends enehored in the last.

2. The combination with a last having a spindle hole and vertical truss-receiving recesses therein, of a truss extending across the bottom of said hole, its sides extending upwardly and positioned in said recesses and its ends anchored in the last near the top thereof.

3. The combination With a last having e spindle hole, vertical truss-reoeiving holes and diverging anchor holes therein, of a 15 truss extending eerossthe bottom of said spindle hole, its sides positioned in said recesses and its ends bent to conform to said anchor holes.

In testimony whereof I have signed my 20 name to this specification in presence of two subscribing Witnesses this fourth day of June,

AMOS e. F 'rz.

In presence of J OHN Aldonnnnn DAISY E. YOUNG.

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