GB190914052A - Improvements in Apparatus for Opening and Closing Electric Switches and Turning On and Off Gas Lights at Definite Times. - Google Patents

Abstract

14,052. Mehne, J. G. June 15. Actuating valves and cocks.-An electric time switch for turning lights on and off at hours varying automatically according to the change of seasons throughout the year, stated to be applicable also in connexion with gas lighting, is constructed with a lever adapted to be set against a spring, latched, and released from the latch, so as to move quickly, the setting and releasing being effected by one and the same pin or cam surface. The disk a, Fig. 2, which rotates once in twenty-four hours, carries cams h, i, which have a yearly rotation about their eccentric pivot i. Arms f, loosely pivoted at g, and carrying pins e are thus altered in position relative to the disk according to the slow rotation of the cams. To operate the switch, the pins revolve with the twenty-fourhours disk. The forward pin c, Fig. 4, strikes a release lever k and allows a lever n to be operated by a strained spring m. It then passes on and actuates the lever n directly in the reverse direction until the lever is again caught by the fall of the release lever k. The to-and-fro movement of the lever n is transmitted through a toothed sector p and pinion q to a switch (not shown). On the axis of the pinion q is a toothed disk s co-operating with a spring latch u oscillated by a pin x on the lever n, in order to stop the motion at the successive definite points.