US173517A - Improvement in bars for making horseshoes - Google Patents

Description

UNITED `STATES PATENT OFFICE.

THOMAS THISTLEWOOD, OF SPARTA, WISCONSIN, ASSIGNOR OF ONE-HALF HIS RIGHT TO L. M. NEWBURY, OF SAME PLACE.

IMPROVEMENT4 IN BARS FOR MKING'HORSESHOES.

Specicat-ion forming part of Letters Patent No. 173,517, dated February 15, 18,76; application filed February 7, 1874.

To all whom it may concern y Beit known 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 a .specification My invention consists of an improved method of making horseshoe-iron, for the purpose of making shoes with selfsharpening calks therefrom.

My improved bar of horseshoe-iron is made' as follows: take two bars of iron, C and D, Fig. 2, and place between them a bar of steel, E, and then roll them all together at Weldingheat so as to form a single bar having an iron sides of the calks wears away by use faster than the harder steel center, or point ofthe calk 5 also, the' nail-holes and the shoe itself are stronger and less liable to wear or break on account of the greater strength and hardness of the steel. In cutting old shoes thus made, to t a smaller foot, the steel will always form the point of the new ealk, which will be self-sharpening.

Iam aware that compound bars of horseshoeiron have been made in several Ways by rolling bars of iron and steel together, but I believe it is new to make a bar of horseshoeiron by rolling a single bar of steel between two bars of iron, as above described; and also new to make self-sharpening shoes-or calks therefrom.

Having thus described and limited my invention, I clailni A bar ofhorseshoe-iromlavingn steel center between two iron surfaces, substantially as set forth. v

v p THOMAS THISTLEWOOD.

Witnesses:

WM. H. BLYTON,

E. H. CANFIELD.

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