Movable dam gate for regulating water in a navigable pass
AssigneeThe United States of America as represented by the Secretary of the Army
InventorByron K. McClellan
Life of this patent
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Abstract
A wicket gate for providing a dam in a navigable waterway is described. A cket gate is connected at one end to an axle which permits rotation of the wicket gate from a horizontal to a vertical position. The axle is supported on first and second carrier bearing, connected to a concrete sill within the navigable waterway. The wicket gate may be raised and lowered by a motor located within a gallery of the concrete sill. The motor is connected via a drive shaft to the axle of the wicket gate. This structure permits movement of the gate without props or other protrusions which could collect and hold debris.
Claims1
A movable dam gate comprising:
- a concrete sill supporting an axle for rotation, said sill having a dry gallery located there within for supporting a hydraulic motor and clutch assembly and said sill having a tapered recess along it top for supporting a wicket gate in a fixed position;
- a wicket gate further supported at one end of said axle, said axle being rotatable to position said wicket gate between vertical position and a horizontal position;
- a hydraulic motor and clutch assembly located in said dry gallery in said sill, having a drive shaft extending through said sill to said axle and having a brake connected, thereto for holding said wicket gate in a horizontal position and said clutch being a slip clutch which operates as a failsafe device such that when the wicket is struck and a predetermined amount of pressure is placed thereupon, said slip clutch will give and said wicket will deflect towards its horizontal position;
- and a gearbox connecting said drive shaft to said axle whereby said wicket gate may be positioned between a vertical and horizontal position by operation of said hydraulic motor and clutch assembly.
Dependencies are inferred from the claim text.