| 摘要 |
This invention consists of a vertically disposed cup-shaped housing mounted on a shaft that is connected to the cam shaft of an internal combustion engine. The aforesaid cup-shaped housing contains a mechanism supporting plate in the upper portion thereof on which is mounted two opposed arms having electrical contacts on one end thereof and a breaker cam follower projecting outward from one side of each arm and in contact with flat surfaces interconnected by curved surfaces that are located on the periphery of a breaker cam that is mounted on the upper end of the aforesaid shaft. The aforesaid flat surfaces are in equal spaced relation around the breaker cam, and are not as long as the curved surfaces.
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