Fluid handling – With casing – support – protector or static constructional... – Vehicle
Patent
1975-11-11
1977-04-12
Cohan, Alan
Fluid handling
With casing, support, protector or static constructional...
Vehicle
239212, B05B 1510
Patent
active
040169022
ABSTRACT:
An agricultural sprinkler, irrigation system, having wheel-mounted, sprinkler-carrying, pipe sections coupled together end-to-end with a centrally located mover unit to form a sidewise movable, elongate, water supply pipeline rotatable about its longitudinal axis is powered by drive means mounted on the mover unit and controllable from an end of the pipeline by mechanism which includes means for transmitting rectilinear movement of a rotating member as rectilinear movement of a non-rotating member and an assembly of switches controlled by such movement-transmitting means and, in turn, controlling operation of the drive means. The movement-transmitting means preferably comprises a flanged sleeve, encircling the pipeline adjacent to the drive means for axial rotation therewith and movable back and forth along the pipeline, as the rotating member, and a reciprocable, rectilinear bar arranged to actuate the switches and having an antifriction end confronting and abutting against the flange of the sleeve as the non-rotating member. Movement of the rotating sleeve toward the non-rotatable bar by increments that are predetermined by desired operation of the drive means is accomplished at an end of the pipeline by pulling a preferably flexible control line that extends to such end from connection with means for moving the sleeve toward the bar. Resilient means are provided for returning the bar and sleeve, and means are provided at the control end of the pipeline for holding the flexible control line in any given operating position.
REFERENCES:
patent: 3800820 (1974-04-01), Trunnell
patent: 3811617 (1974-05-01), Cornelius
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