(under the class definition) Apparatus in which the pump is driven by a motor or a selectively disengageable drive means (i.e., clutch), the motor or clutch having means (e.g., valve, switch, brake, starter-circuit, lever, etc.) for controlling its operation and the pump having control means associated therewith (i.e., pump fluid valve or displacement varying means), there being provided positive actuation means for both the motor or clutch control means and the pump control means, said motor or clutch control means and said pump control means being interrelated in a manner which causes or requires positive actuation of the pump control means upon actuation of the motor or clutch control means to at least one of its operative controlling positions, or vice versa.
