US1333981A - Adjustable shoe-last - Google Patents

Description

G. H. HURT.

ADJUSTABLE SHOE LAST.

APPLICATION FILED JULY 8,1919. 1

l ,333, 98 1 Patented Mar. 16, 1920.

2 SHEETSSHEET G. R. HURT.

ADJUSTABLE SHOE LAST.

APPLICATION FILED JULY 8, I919.

1,333,981 Patnted Mar. 16,1920.

2 SHEETS-SHEET 2.

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GRANVILLE It. HURT, OF GHA'NUTE, KANSAS.

ADJUSTABLE SHOE-LAST.

Specification of Letters Patent.

Patented Mar. 16, 19 20.

Application filed July 8, 1919. Serial No. 309,257.

1 '0 all zr/wm it may concern Be it knownthat I, GRAN Hour, a citizen of the United States, and a resident of Chanutc, in the county of. Neosho and State of Kansas, have invented certain new and useful improvements in Adjustable Shoe-Lasts, of which the Following is a specification.

My present invent-ion relates generally to shoe lasts and more particularly to an adjustable shoe last having provision for stretching, lengthening and toe-litting, my object being the provision or a construction providing for ready interchangeability to these functions, aswell as one including a novehsiniple andetfective heel'engaging anchoring means.

Vith these general objects, my invention resides in the details of construction, arrangement and operation to be now described with respect to the accompanying drawings, forming a part of. this specific-a tion and wherein i v i Figure '1 a side elevation of the com plete and preferred constriirction,

Fig. a rear elevation of the body portion of the last shown in Fig. l,

Fig. ,3 a vertical longitudinal section taken centrally through the rear portion of the body,

Fig. l is a detail face view of a portion otthe anchor bar guide plate,

, 5 is a oetail locking key removed,

Fig. 6 is a side elevation illustrating a diti'erent form of last body,

Fig. 7 is a rear elevation of the last body shown in Fig. 6.

8 is a side elevation of a modified forrnot toe piece for usewith the last body of Fig. 1,

Fig. 9 is an elevation of the heel removed, and

Fig. 10 18 a cross section through the anpiece chor bar looking toward its forward or inner end.

Referring now to these figures, and par ticularly to Figs. 1 to 5 inclusive, my inv peripective view of the and along, one corner thereof and having the eltect of flattening the corner as particularly seen in Fig. 10, the teeth being indicated at 18. it one end, as at it, in Fig.

3, the anchor bar is lettfull square and its 7 opposite end carries a heel engaging piece or substantially plane-convex shape as seen particularly in Fig. 1, the flat face of which is provided with cars 16 pivotally connected at 17 to the respective end of the anchor bar, and which pin is removable so that said end of the anchor bar may be extended through the opening 18 of a guidev plate 19. This opening 18 is shaped to coniforn: strictly to the beitore described shape of: the anchor bar so that the full squareopposite end of the anchor bar is prevented from pulling through the guide plate. The guide plate 19 is secured to the rear end of the body 10 of the last by fastening mem: here 20 as seen in Fig. 2, with its opening 18 alined with the bore 11 of the last body so that the latter receives the forward end of the anchor bar12 as previously. stated.

The rear end of the last body 10 is also provided with a vertical recess extending above the rear end of the. bore 11 so as to receive an angular locking key 21 therein against the front face of the guide plate .I

19. the lower sharpened edge of which key, as indicated at 22, being shift-able 1nto and V out of engagement with the teeth 13 ofthe anchor bar to lock the latter in adjusted position. This key, it will. be noted, is freely movable and the last need only he outer end and an engaging member 25 at I its. inner end in the form of a spherical enlargement' Intermediate the ends of its in- .clined lengthwise opening 26 the last body.

also has a spherical socket for an adjusting ball 27, the latter of which has a diametrical threaded opening engaged by the threads of the screw rod 23 which extends, through the ball opening and is by virtue of the'movable qualities of the latter, angularly adjustable to some extent with respect to the axis of the body opening 26.

nt its forward end the last body 10 is cut away to form longitudinally offset upper tively guided; by virtue downwardly facing bearing and lower shoulders 28 and 29, with an upwardly facing lengthwise bearing surface 30 between these shoulders, to receive the downwardly facing bearing surface of the upper rearward extension 31 of a toe piece comprising upper and lower * eetions 32 and 33, each internally recessed to cctiperate in the formation of a socket at for the reception of the spherical engaging ineinber at the forward end of the screw rod These upper and lower sections and are connected by approximately vertical screwbolts 35, the heads 36 of which are movable in vertical bores of the upper piece or section 32 under control of coil springs 3'7, the action of which is to normallyv hold the upper and lower sections of the toe piece snugly in connection with one another.

In the use this last it is obvious that the toe piece a whole can he adjusted by virtue of the screw rod so as to act a lengthener and that this toe piece, in its movement relative to the l'iody 10, is he coope bearing surfaces of the .t body as above describc-id dispocion which in relation to the other p avoids danger of the'pinching of the lining or inner portions of a shoe in which the l utilized. it is also obvious that the of the spherically enlar ed engap' (r her 25 of the screw rod 23 within i ing bore of the toe piece will tend to the upper and lmver ections o; t? i, with respect to one another the tension of springs 87 so as as a toe lifter within ashoe.

From Figs. 6 and 7 it will be, noted.

however, that my improved heel en ing o1 anchoringdevice is capable u .izatioii with an ordinary form of laterally stre" ing shoe last, of which the body is indicated at 10, and is split longitudi rally at 38 in Fig. 7, the rear anchor bar guide plate 19 being-in this form arranged to act a spring to normally hold the side sections oi the last body together and 1' for this purpose provided will.v 1 vertical i d rounded central )ortion 19 2 The toe lifting toe niece of the last as described in connection with F 1 to 3 inclusive, also capable of int"rcl"""' ole use with a solid toe piece 39 as s 8 which has a socket'i'or the rece the engaging ineiiiberof'the scr rod :23

and which has annpper rear e1; like the extension in rig. 1, p 'enting a coiiperate with the upwardly bearing surface 30,0f the last body. 1.0. This solid 1,ese,ee1

i also having a recess in its rear face extending vertically from the rear of said here, an anchor bar, the forward portionof which extends within said bore, having a square cross sectiond provided with a longitudinal series of teeth cut into and flattening one of itscorners, a plate secured to the rear of the last body across its bore and havin a guide opening conforming to the cross sectional. shape of the anchor bar, the inner end of said anchor bar being full square to prevent accidental withdrawal through the said guide opening, a heel piece at the outer end of the anchor bar, and an angular locking ineinbcr freely shiftable vertically inthe said recess of the last body along the inner surface of said plate and into and out of engagement with the teeth of the anchorbar inc uding a handle portion projecting outwz 'dly over the upper edge of the plate.

2. A shoe last comprisin a body having a lengthwise bore extending forwardly in is rear lower poi tion from its rear end and also having a recess in its rear face extend ing vertically from tl rear end of said bore, an anchor bar the forward portion of which extends within said bore, said bar being polygonal in cross section and having a longiof teeth, a guide plate removpiece being detachable. to permit of dlsassociation of the bar from the plate, after, the latter is removed, and a gravity latch ineinber movable vertitnlly in the recess of the last body forwardly of the said guide plate and freely shiftablc into and out of engagement with the teeth of the anchor bar.

In testimony whereof I aliix my signature.

GRANVILLE R. HURT.

y secured to the roar ofthc last body id anchor bar having nieansat its

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