USRE7476E - Improvement in horseshoes - Google Patents

Description

T. THLSTLEWOOD. Assiguor of one-half interest to L. M. NEWBURY.

nonsnsnom- No. 7,476. Reissued Jan1.23,1877.

fnasq 'miowm N UNITED STATES PATENT OFFICE.

THOMAS THISTLEWOOD, or SPARTA, WISCONSIN, IASISIGNO'R OF oNnHALF INTEREST TO LYMAN M. NEWBURY, OF SAME PLACE.

IMPROVEMENT m HORSESHOEIS.

Specification forming part of Letters Patent No; 173,517, dated February 15, 1876; reissue No. 7,4 76, dated January 23, 1877-; application filed June 24, 1876.

To all whom it may concern:

Bevi'tknowu that I, THOMAS THISTLEWOOD, of Sparta, in the county of Monroe and State of Wisconsin, have invented a new and useful Improvement in Horseshoes, of which the following is aspecification:

My improved horseshoe is made from a compound bar having a continuous layer of steel welded to continuous layers of iron,'the bar being constructed substantially as follows:

Take two'bars of iron, 0 and E, Figure 1, and place between them abar of steel, 1), and then roll them all together at welding-heat, so

' as to form a single bar having a continuous layer of steel running the whole length of the new or compound bar thus made. This compound bar is rolled to the proper size for makiug horseshoes, or what is known" in the trade as horseshoe-iron. Then the horseshoesn-re made in the usual way from this compound bar.

When the shoe is completed, the points of the caiks consist-of steel, as seen at A, Fig. 2.

These calks are'selt' sharpening, because the softer iron at the sides of the calks wears away by use faster than the harder steel center or point of the clalk; also, the nail-holes and the shoe itself are stronger. and-less liable to wear or break, on account 'ot' the greater strength and hardness ot'the steel. l

In cutting old shoes made from such compound bar to fit a smaller foot, the steel will always form the point of the new calk, which will be self-sharpening.

I am aware that compound bars of steel and iron have'been made in several ways by rolling bars of iron and steel together for other purposes; but I believe that a horseshoe made from a compound bar composed of two bars of iron with a continuous layer of steel interposed THOMAS rnlsrhnwoon.

Witnesses M. HANSON, J OSEPH WANLAP.

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