Roller bearing hot box sensor

摘要

A roller bearing hot box sensor utilizing a metallic temperature sensitive elongated wire element. The wire element contracts at temperatures in the range of about 125 DEG F. to about 225 DEG F. so that when the contraction movement of the wire is attached to a connector means that operates a firing pin. Movement of the wire element initiates an electrical battery or other power source and thereby transmits electrical current to a signaling device, that gives a signal.