Water drive system for a center pivot irrigation unit or the lik

Details Water drive system for a center pivot irrigation unit or the lik Water drive system for a center pivot irrigation unit or the lik

1977-03-28

1978-11-28

Betts, Kenneth H.

Motor vehicles

Vehicle trains

Motorized trailer

188 827, B05B 312

Patent

active

041271815

ABSTRACT:
This is concerned with a water drive system for a center pivot irrigation system in which a string of pipe pivots in a circle or oscillates about a center pivot or upright with the pipe supported on towers at intervals and each tower being independently driven by a power mechanism which is operated by the pressure of the water in the string of pipe. It includes a mechanism to prevent one or more towers from rolling ahead on a downhill slope, a diaphragm valve arrangement for controlling the cycling of the drive, and an enlarged bellows or bladder for operating the water drive mechanism.

REFERENCES:
patent: 2893643 (1959-07-01), Gordon
patent: 2941727 (1960-06-01), Zybach
patent: 2974976 (1961-03-01), Lyall
patent: 2991763 (1961-07-01), Marette
patent: 3952768 (1976-04-01), Townsend
patent: 3952952 (1976-04-01), Townsend
patent: 3965924 (1976-06-01), Kennedy
patent: 4005729 (1977-02-01), Townsend

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