Motors: expansible chamber type – Cyclically operable – With throttle valve or distributor throttle adjustment
Patent
1974-12-05
1976-06-29
Maslousky, Paul E.
Motors: expansible chamber type
Cyclically operable
With throttle valve or distributor throttle adjustment
91352, 91448, F01B 2506
Patent
active
039658007
ABSTRACT:
An automatic irrigation controller apparatus having a cam follower operated bank of pilot valves for operating selected pilot operated water valves throughout a watering or irrigation system is provided with a water powered means for receiving water under pressure from a source thereof and a member driven in a predetermined manner by the force of such water for driving a cam means to operate said cam followers via power transmission means between the water driven member and a cam shaft mounting said cam. A water piston is mounted in a cylinder with associated water valve means for selectively connecting the cylinder to a source of water under pressure and to a vent to provide a reciprocal movement for the piston, a return stroke for the piston being accomplished through the provision of a spring. A reciprocal piston movement is translated through a power transmission means including a drive ratchet wheel connected to the piston and a driven ratchet wheel connected to the cam shaft. An escapement mechanism is provided with a ring gear mounted about an engagement with a plurality of planetary gears mounted by a carrier about a sun gear driven by an input shaft of the apparatus connected to the cam shaft. Differences in the speed of rotation of the input shaft and the escapement means ring gear cause movement of the carrier which is connected to a valve restricting means for restricting the flow of water to the cylinder to regulate the speed of the water motor and rotation of the apparatus input shaft to that determined by the escapement mechanism.
REFERENCES:
patent: 95838 (1869-10-01), Root
patent: 329525 (1885-11-01), Abrams et al.
patent: 465014 (1891-12-01), Brazelle
patent: 500749 (1893-07-01), Werden
patent: 3236157 (1966-02-01), Lovell et al.
Maslousky Paul E.
The Toro Company
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