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US 3,942,328 AGranted
Automatic canal gate
OwnerMills E. Bungerinventor
Life of this patent
Estimating the term…
Abstract
A pivotal canal gate, mounted in a predetermined size canal, opens and closes by a controllable weight movable in response to a float-switch mechanism for maintaining a predetermined level in the downstream side of the gate in the canal; water passing under the gate is directed into a dead-water pool breaking up the velocity of the flowing water, providing a control pool for maintaining a constant head over a discharge weir providing a predetermined quantity of water into the downstream canal.
Claims6
Gate apparatus for automatically regulating water flow into distribution canals and the like, comprising:
- a. a rectangular canal section having upright walls, a generally horizontal, flat bottom and having inlet and outlet ends;
- b. a low-height dam at the inlet end and a low-height dam at the outlet end providing a dead-water pool therebetween;
- c. a gate means pivotally mounted on a shaft supported by said upright walls, and positioned to close against said bottom in said pool;
- d. extension means depending from said gate inclusive of a carriage having weights for moving toward and away from the gate balancing the same in relation to inlet water against the gate means;
- e. means for moving said carriage;
- f. adjustable float-switch means arranged closely adjacent said gate means on the downstream side of said gate means, operable by the depth of water in the downstream side of said gate means, and connected with and operating said means for moving said carriage;
- and
- g. said gate means including a rearwardly curved lower portion terminating at a discharge lip for directing incoming water under said gate means and into said dead-water pool for reducing the gross velocity thereof.
5 more elements
Dependencies are inferred from the claim text.