Improvements in or relating to means for securing renewable wearing parts to the soles and heels of boots and shoes

Abstract

Abstract 170,868. Nixon, A. April 22, 1920. Screw sockets for attaching renewable wearing-treads to the soles and heels of boots and shoes, are made in the form of a spike and provided with circumferential projections d of buttress-tooth or undercut shape for resisting withdrawal, and with longitudinal recesses or projections c, or are made of rectangular or other cross-section, for preventing rotation. The projections d may extend to the cylindrical portion a and the recesses &c. c partly to the tapered portion b. Instead of having a cylindrical portion, the spike may be of even or varying taper throughout. It may be driven in directly or into a prepared hole.

Inventors

No inventors recorded.

Bibliographic Details