Safety device and for protecting electrical switches and the like, in particular to mean voltages

摘要

879,669. Mechanical switches without quick action; switch covers. BASSANI S.p.A. Aug. 11, 1958 [June 7, 1958], No. 25713/58. Class 38 (5). A safety switching device comprises pairs of fixed contacts 14, 26, connected respectively to feeder terminals 12 and to fuses F and pin-plug sockets 32, 30, and bridged by spring-urged rollers 16 on forks 18 mounted in recesses in a bar 22 pivoted at its ends 24 between the base 10 and a plate 36. Opening of a cover 40 integral with the bar 22, causes the rollers 16 to run up an inclined plane 28 of the contact 26 to the position 16SP1/SP where they are retained, so breaking the supply to the fuses and pin-plug sockets.