.~ Control including clock, retarder or programmer
(under subclass 698) Apparatus, controlled (1) by a time measuring or period establishing device or (2) by a device providing a sequence of events set to occur at predetermined intervals or terminating a single operation in a fixed position to restart an additional cycle, which cycle is more complex than a mere starting or stopping of a single device.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type,
35+, for expansible chamber motors having independently operated timer, delay pattern or cyclic control means.