GB1295213A - - Google Patents

Abstract

1295213 Cam-operated switches R E SLOPA 21 April 197 [24 April 1970] 10530/71 Heading H1N An adjustable switch mechanism comprises a switch 10, a cam 34, an actuator 50 including a body 54 pivoted at 52 and carrying an element 56 adjustable in the longitudinal direction and carrying a cam follower 72 engaging cam 34, and apparatus for moving element 56 relative to body 54 to change the position of cam follower 72. The apparatus comprises a screw 58 threading into element 56 and turned by knob 84. Four cam, switch and actuator assemblies are mounted on a common support, Fig. 1 (not shown) and the cams 34 are mounted on a common shaft 24 driven by a pinion and gear from a driving shaft 29, Fig. 1, each cam 34 being coupled to shaft 24 by being urged by a spring 39, Fig. 1, against a block on the shaft carrying a pin 32, Fig. 1, which engages in one of holes 36 in each cam 34 thus allowing angular adjustment of each cam 34 which, together with the adjustment of cam follower 72 allows 360-degree angular adjustment. The mesh of the pinion and gear can be adjusted by a split 41, Fig. 2, (not shown) in each of two shaft bearings 22, Fig. 2, which split can be narrowed or widened by a screw 42, Fig. 2.