Contact breaker for IC engine distributor - has cam lever controlled by engine vacuum to move contact on pivot

摘要

The contact breaker points consist of a fixed point and a movable point which rotates about vertical pivot (2). The movable point is carried on arm (1) which is supported by a spring (7). The assembly is covered by a cone (12) which is pressed into place by a horizontal cam (8) on a lever (9) pivoted about a vertical pin (10). Movement of the cam lever causes the movable contact breaker point to slide vertically downwards..