Gravity safety switch

作者: Benjamin F Hughes

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摘要: A gravity operated switch includes a movable electrically conductive member in housing. The bridges pair of fixed spaced electrical contacts. When the housing is tilted moves off or out contact with contacts to open an associated electric circuit. has particular utility tractors and other machines stop operation when machine unsafe operating position. switches control flow fuel engines machines, ignition, engine components.

参考文章(5)
Burleigh David Samuel, Theft-prevention devices for vehicles ,(1965)
Marshall H. Murray, Automobile switch structure ,(1950)
William Lee, Lee Albert C, Signal for automobiles ,(1934)