Tract-tailored control means and method for center-pivot irrigat

Details Tract-tailored control means and method for center-pivot irrigat Tract-tailored control means and method for center-pivot irrigat

1976-11-19

1977-12-20

Cohan, Alan

Fluid handling

With casing, support, protector or static constructional...

Vehicle

239177, 239DIG1, B05B 312

Patent

active

040635694

ABSTRACT:
Sprinkler irrigation apparatus of the general type comprising a center-pivot site for the land tract to be irrigated, a generally horizontal water distributing conduit having sprinklers and also underlying traction supports therealong. The outermost underlying support through hydraulic or electric drive means has substantially constant-speed, but driven intermittently for an average-speed as determined by an arbitrarily settable percentage-on timer means. A primary-timer and a secondary-timer (and perhaps a tertiary-timer, etc.), each being arbitrarily set for different percentage-on values, alternatively exclusively control the outermost support drive means according to tract-tailored automatic switching means dictated by peculiarities of the particular land tract to be irrigated from a single center-pivot apparatus.

REFERENCES:
patent: 3608826 (1971-09-01), Reinke

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