| 摘要 |
1489409 Lamp holders VOSSLOH-WERKE GmbH 23 Dec 1974 [27 Dee 1973] 55635/74 Heading H2E A holder for a screw cap lamp comprises a housing, consisting of a cylindrical part 1 screwed to a base 2, part 1 and/or the base 2 being of metal or of plastics or ceramic material, a female thread 1a and a plastics or ceramic support block 3 with projections 5 on which the base of the lamp rests. a side contact blade 8 resting in and being rigidly supported by the wall of a shallow recess 16 in the inner wall of one of the projections 5 and a centre contact 11 being at the end of a resilient blade 12 and being supported by a spring 14. The spring 14, which may be a helical spring as shown or a leaf spring, is of a material such as steel which retains its elasticity under high thermal loading. |
