US381098A - Dayton ball - Google Patents

Description

D BALL y (No Model.)

LAST.. f i;

'mmm-@Mp8 A17, 18885v i UNITED STATES DAYTON BALL, oE ALBANY, N EvvYoBx.v f"

LAST. l

SPBCIFICATON forming part of Letters Patent No. Y381,098,'dated'April 17, lees..`

Application filed December 8, 1887. SerialNo. 257,284. i (No model.) Y i i To aZZ whom, it may concern:

Be it known that LIDAYTON BALL, of the i cityr and county of Albany, in the State of New York,r'have invented new and useful Improve-Y ments in Lasts and their Supports, of which p the following isa full and exact description,

reference beinghad to the accompanying drawings, which form `part of this specification, and

' in which- ,Y

Figure lis a side elevation of a last containing my improvements, with the heel portion shown in vertical section.

v cient strength to awooden last to constantly endure the exceeding pressure to which it is subjected in a machine for mechanically at'- taching heels to shoes, and I attain this object by themeans herein shown and described.

As represented in the drawings, A designates the last, which may be of any, preferred has a cylindrical bore. sleeve is fitted to bear against the inner face form andof any required size. Said'last is made of wood, and is provided with a metallic heel-plate, B, which should be of sufficient strength and thickness to prevent it frombecoming perforated by the nails used for heeling shoes thereon. Said heel-plate is finished to conform to the usualfshapefof the heel of the last, and is secured to its place by means of screws or other suitable fastenings.

C is a metallic sleeve inserted in the cone of the last. Said sleeve is coniformin shape and The larger end of said of the heel-plate, and thereby a greater bearing-surface is obtained, to .resist the tendency of .inj uringsaid heel-plate while under pressure, than is possible when a cylindrical sleeve is used.

D is a coniformy metallic stud, that is also inserted in the cone of the last at a short dis# tance from the sleeve C. Preferably the axes of said stud and the sleeve C are arranged parallel with each other.` t stud and yof the sleeve"- G is slightly greater than the ldepth of the cone of the last, so that the smaller ends of the stud and sleeve will proj ectslightly above the surface a of the cone; thereby the wood of the last is protected against `the compressive power exerted by the heeling-machine, the pressure of thelatter being entirely borne 4by the sleeve Gand stud D.

Fig. 2 isa like view Y, of mylastixed on the jack of a heeling-ma-H The length of saidl E is Vthe jack, which is ittedronthe jackspindle F of the heeling-m'achiue, sothatthe- .head e of said jack will kbe aboutconcentric with said jack-spi ndle. Said jack is provided with a single pin, e', which fits the boreof the The pin e should be arranged in the head e, so

PATENT that it will be eccentric to the center oflthe jack-spindle F to such a degree that the center of the latterwill `be about midway vbetween the centers of theV sleeve C and studD.' By v this arrangement thestress of the pressure exerted by the heeling-machine in the operation of heeling shoes on these lasts Willbeequally diameter. at their inner ends .than at their outer ends I avoid any liability of their weardistributed on the `headof the jack, and there# ing loose and droppingout ofplacewhile in use.

I claim as my inventi`on-'- -l. A last provided with a metallic heelplate, in combination with a co'niform sleeve land a coniform stud, as herein described, both ,isleevfeand stud beingfmade of metal and hav-,1 ling a slightly kgreater length than the depth of the cone of thelast, said heel-ydate,sleeve,A

andstud all being made independentlyof each other, andthe sleeve and stud being inserted Y.

in said last, so that the larger end of each will have a separate bearing against the inner face of said heel-plate, as and for Vthe purpose yherein specified. v t

2. The combination, with a-las't'provided with a metallic heelplate and havinga metallic sleeve and a metallic stud inserted separately in the cone ofsaid last, the inner ends of bothy sleeve'and stud having, a separate bearing against the` inner facer of said heelf plate, and the outer ends of' both projecting slightly from the upper face of the cone-of the lla'at,. of a jack provided with a single-pin which is fitted to the bore of the sleeve of the last, but is of linsufcient length to bear against the heel-plate, saidpi-n being arranged eccentrically to the center of the jackispin-V die, on which said jack is tted, asandfor thel IOOj DAYroNI BALL.

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