FLOW CONTROL DEVICE FOR AN IRRIGATION DITCH

摘要

FLOW CONTROL DEVICE FOR AN IRRIGATION DITCH A device for controlling the flow of water between an irrigation ditch and an adjacent field. A conduit having a first end opening into the irrigation ditch and a second end opening into the field to be irrigated. The cover is pivotally attached to the first end of the conduit by means of a "J"-shaped hinge. A handle is provided on the exterior of the cover and can be engaged by a manually-held instrument to pivot the cover to a position above the conduit where it will rest due to the configuration of the hinge part. The conduit is positioned relative to the irrigation ditch such that the first end is recessed inwardly of one side wall of the ditch and extends below the bottom wall of the ditch. This invention relates to a device for controlling the flow of water between an irrigation ditch and an adjacent field. Many prior art devices for controlling water flow between an irrigation ditch and an adjacent field include external means for actuating cover plates or valves usually in the form of linkages or other protrusions which extend above the ground surface or along the side walls of the irrigation ditch thereby interfering with machinery traversing the banks of the ditch or machinery used to clear and plow the ditch. Illustrative of such devices are U.S. Patent No. 1,612,467 to Meyers, dated December 18, 1926, entitled HEAD GATE FOR IRRIGATION PURPOSES, U.S. Patent No. 2,854,813 to Fisher, dated October 7, 1958, entitled IRRIGATION DITCH VALVE and U.S. Patent No. 2,688,461 to Simpson, dated December 7, 1954, entitled VALVE FOR IRRIGATION SIPHON CONDUITS.