US72073A - Improved boot and shoe-heels - Google Patents

Description

PATENTEU, 72073 Lul-:0101867 @New let-teh' gieten uirnt @fficei ERASTUS NEWHA'LL; OF LYNN, ASSIGNOR TO HIMSELF AND JOHN R. MOFFITT, OF CHELSEA; MASSACHUSETTS.

Letters Patent No. 72,073, deted December 10, 18 67; antedatccl December 3, 1867.

MPROVED BGO'I AND SHOE-BEBES.`

TO ALL WIIOM l'l MAY CONOERN:

Be it known that I, EnAsrUs NEWHALL, of Lynn, in the county of Esse-x, and State of Massachusetts, have invented an Improvement in Boot and Shoe-Heels; and I do herebyfleelare that the following, taken in connection withv the drawings which accompany and form part of this specification, is a description of my invention, suiicient to enable those skilled in the art to practise it. i

This invention relates to that variety of boot or shoe-heels which are made in two parts, the lower or tread part ofwhich is made circular, and arranged to be turned around upon the upper or seat part, so that by proper adjustment of the tread it will be worn oii' uniformly all around.

My invention is confined to heels of the class named, when one or both parts are made of rubber or other yielding elastic vulcanized material o r compounds.; and it consists in constructing,r a heel, when ma'de of two `such parts, and of such material as before named, with a central circular hole or mortisc in one part, and a i'rcular eentre-pin or tenen on the other part, when the pin ismede of such a solid forni, either as a. frustum i of a cone or with a head or flange, as that by the shape ofthe pin or centre, and the corresponding shape of the hole which it enters, and the elasticity of one or both partshthe tread is held securely upon theseat without liability to fall oii therefrom, or to turn thereon under the action of ordinary wear, but so that the tread can be turned enthe seat by proper manipula-tion.

By preference I make the pin on the tread, and its hole in the scat, because if the reverse arrangement were adopted the enlarged part of the pin would in time wear ofi` to such an extent as to leave the tread loose upon its seat.

In the drawings there is represented at A., in vertical longitudinal section, a heel made in two parts, and embodying my invention.V At B the same is shown in yertical transverse section.

a is the tread, and Z1 the seat part of the heel. The pin c is shown as integral with the tread, and as its shape and the shape of the pin-hole are better illustrated byhdrawings than they can be by verbal description,

reference may he had to the drawingsfor an understanding ofthe shape whiehlprefer for the pin and itsV hole, it hoing understood, however, that the shape of the pin is not of the essence of my invention, to embody which it is necessary only that the end of the pin should `he the largest part thereof, so that either the pin has to be compressed or the hole enlarged, or in part both., in order te secure the tread to the seat. u

To facilitate tnc entrance ot' the pin into its hole, I sometimes cut a. small segment oil` from the large part of the pin. This allows the pin to be entered more readily, but the juncture ci' the V'parts may be effected without such cutting.

Irior to my invention, so far as I know, the union of Ythe rotating tread part of a heel with its seat has been accomplished by various kinds of metallic connections. By my invention the same object is accomplished by making usc of the elastic quality of the pin, or of the saine quality in the material which surrounds it, or preferably by the elastic quality in both parts.

I claim a heel made with a circular tread and :t eorresponding'seat, when one or both of the two parts are made of elastic material, and are united substantially as described. i

ERAS'IUS NEWHALL.

Witnesses:

J. I3. Gnosnr, F. GOULD.

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