GB589885A - Improvements relating to mountings for electrical contacts - Google Patents

Abstract

589,885. Electro-magnetic switches; contacts. CARPENTER, R. E. H. March 6, 1945, No. 5593. [Class 38 (v)] In a relay wherein two or more contacts 30, 31 move into engagement with a corresponding number of "fixed" or "passive" contacts 38, 39, self-alignment of contacts is secured by contacts 38, 39, Figs. 2 and 3, being mounted on a bar 41 which pivots about axis 42 and is frictionally gripped between two ears 43, 44, a spring 46 pressing the bar against the lower ear 44. The invention is shown applied to a relay as described in Specification 559,047 with passive contacts on both sides of the armature contacts. The ears 43, 44 are fixed to a spring member 45, the upper arm of which frictionally engages its adjustable support 48 for damping purposes as in Specification 484,472. In Fig. 6, four passive contacts are mounted in pairs on bars 57 which are frictionally pivoted to a bar 40 by pins 59 and spring members 58. The bar 40 is frictionally pivoted to a plate 48 by a pin 61 and a spring member 60. In Fig. 7, three passive contacts 62 are mounted on an insulating disc 63, pivoted within a gimbal ring 65 on screws 64; the gimbal ring being pivoted at 68 to a bracket 69. According to the Provisional Specification the disc 63 may be carried by a non-rotating ball joint.