Abstract:
There is disclosed herein a tyre stud structure comprising a body portion for insertion in a vehicle tyre and a stud pin mounted in the body for limited axial movement in the radial direction with respect to the tyre. Means are provided for resiliently urging the pin outwardly, and in a modification, the outwardly projecting portion of the pin has a sleeve positioned thereover.
Abstract:
A method for making a roller for hot and cold rolling by placing at least the radial inner portion of a hard metal ring in a mold cavity, heating the mold cavity and the hard metal ring and casting therearound, at least at the inner part of the radial sides of the inner ring, an annular hub of ferrous alloy. After casting, the hub and the hard metal ring are cooled, the hub shrinking more than the hard metal ring so as to exert compression forces thereagainst to hold the same in place.
Abstract:
A roller for hot and cold rolling is made by taking a hard metal ring, the cross-section of which decreases radially outwardly, and casting around the inside and at least the inner part of the radial sides thereof an annular hub of ferro alloy. After casting, the hub and the hard metal ring are cooled, the hub shrinking more than the hard metal ring so as to exert compressive forces thereagainst to hold the same in place.