GB1433616A - Electrical switch - Google Patents

Abstract

1433616 Mechanical switches CARP FASTENER CO Ltd 5 Aug 1974 [6 Aug 1973] 37159/73 Heading H1N An electric switch comprises a conductive zig-zag member 31, Fig. 1, compressed between two stops 16, 29 in a housing frame 20, at least one of which stops 16 is conductive and the end 33 remote from the stop being engaged by an electrically insulating pivoted operating member 34 secured in the frame 20 and depressible to disengage the end 38, 39 of the coductive member 31 from its stop 29 and to make or break an electric circuit. In the embodiment shown the switch is of the normally closed type and the circuit is completed through stop 29, which comprises a pair of bent over lugs integral with the conductive housing frame 20 and engaged by a pair of lugs 38, 39 integral with the member 31 and bent over a nose 36 of the operating member 34. The housing comprises an insulating lining 10 having walls 11, 12, 13, 14 retained within a bent up metal housing bracket frame 20. The contact stop 16 comprises a strip inserted through slots in insulated housing walls 13, 14, Fig. 2, and retained endwise by bent up lugs 17, 18. The frame 20 has apertures 21 (24) for mounting purposes and the switch is stated to be suitable for mounting adjacent a vehicle brake lever for the operation of indicator lights when the lever is disengaged from the actuator 34. In a modification for a switch of the normally-off type the stop 29 is insulated and conductive lugs are bent up from the frame 20 in a position below the operating member nose 36.