Improvements in or relating to electric switches
Реферат: 889,553. Snap-action switches. GENERAL ELECTRIC CO. Ltd. June 30, 1959 [June 30, 1958], No. 22415/59. Class 38 (5). The resilient side walls 2 and 3 of a switch base 1 provides snap-action by virtue of cusplike troughs 29 and 30 formed in each side wall to co-operate with projections 28 on the dolly 16. Slits 34 are provided between the walls 2 and 3 and the bottom of the base 1 to increase the flexibility of the walls. A fixed contact 6 and a contact blade 8 are located in slots 4 at each end of the base 1 and retained therein by an insulating plate 17 clamped by a cover 18 having lugs 19 which are bent under projections 20 at each corner of the base 1. The cover 18 and plate 17 also retain the dolly trunnions 15 in recesses 14. A cam portion 24 of dolly 16 engages blade 8 to open the contacts in one position of the switch and the limits of movement of the dolly 16 are defined by abutment edges 26 and 27 engaging the plate 17.
Improvements in and relating to lever operated electric switches
Номер патента: GB466745A. Автор: . Владелец: PARSONS C H Ltd. Дата публикации: 1937-05-31.