| 摘要 |
541,264. Tumbler switches. TUCKER & CO., Ltd., J. H., and FUKE, F. C. Jan. 1, 1941, No. 41. [Class 38 (v)] A tumbler switch is fastened to a wall or other surface by screws which pass through two brackets 4 so that no stress is imposed ontheporcelain or like base 5. The brackets have projections 4b, 4c which embrace projecting portions of the base and are secured to the base by a bolt 6 which also passes through holes in members 7a secure to the switch bridge. Specification 539,323 is referred to. |
