Land irrigation system and method

摘要

A land irrigation system is illustrated in which an elongated sprinkler line continuously travels in a direction transverse to its length along the length dimension of a stationary water main and is continuously supplied with water from upstanding hydrants spaced along the length of the water main. A driven tractor moves along the water main at substantially the same rate as the sprinkler line and a plurality of elongated water carrying pipe connector devices each have one end portion connected to the sprinkler line and their other end portions movable into position for automatic connection to and disconnection from successive hydrants along the main, to permit substantially continuous movement of the tractor along the water main and movement of the respective water carrying connecting size devices into position for connection to the hydrants. Improved hydrant coupling and water valve activating mechanism carried on the water pipe connector devices cooperate with improved hydrant and water valve structure to facilitate connection with and disconnection from the hydrants to maintain continuous water pressure to the sprinkler line.