STOPWATCH-TIMER ASSEMBLY WITH IMPROVED STOPWATCH CONTACT MECHANISM

摘要

A combination of a hand-held timer, including an actuator for initiating operation of the timer, and a switch which is closed on operation of the actuator. The switch is connected by means of a metallic pawl through a flexible conductor, to a remote electrically operated device and acts to control operation of the remote device upon operation of the timer. In a modified form of the invention, an annular insulative element with a conductive layer electrically connected to the timing device is rigidly fixed to the exterior of the stopwatch casing. Upon depression of a metallic plunger, an electrical circuit is completed and consequently a time interval is measured.