Elecro-mechanical programmer/timer

摘要

The present invention provides an electro-mechanical programmer/timer having a plurality of switches actuated by a rotating program cam with each of the switches tracking a separate cam track on the cam. The program cam is indexed by a pawl which engages ratchet teeth on the program cam. The pawl is oscillated by engagement with a sub-interval cam driven by a motor drive. At least one of the switches following the program cam is a single-pole double-throw switch with the center blade thereof actuated by a cam follower lever operated by a separate track on the sub-interval cam.