Wicket dam and lifting jack

Details Wicket dam and lifting jack Wicket dam and lifting jack

1994-02-22

1995-07-18

Ricci, John A.

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

405101, 405108, E02B 740

Patent

active

054335558

ABSTRACT:
The arrangement includes a downstream jack pivotably mounted about an axis in the floor of the dam and a rotating abutment member carried by the wicket for receiving an end of a jack piston rod. The jack is restored to an end angular orientation when the piston rod is moved away from the abutment member. This end angular orientation is determined by the axis joining the end upright position of the abutment member and the end down position of the abutment member. The piston rod of the jack and the abutment member are provided with a coupler for ensuring their engagement. The jack body is fitted with a sealing apparatus pivotably mounted about the same axis in the floor of the dam and out of which the jack body is easily removable.

REFERENCES:
patent: 419287 (1890-01-01), Scaife
patent: 983937 (1911-02-01), Schildhauer
patent: 2335327 (1943-11-01), Wellons
patent: 3718002 (1971-07-01), Aubert
patent: 3775983 (1973-12-01), Aubert
patent: 4073147 (1978-02-01), Nomura
patent: 4352592 (1982-10-01), Aubert
patent: 5178490 (1993-01-01), Snowberger et al.
patent: 5199812 (1993-04-01), McClellan
patent: 5222834 (1993-06-01), Schultz
Lecture given on Nov. 4, 1980 by Aubert entitled "New Process of Foundation in River Bed Application at Denouval Dam".
Article entitled "New River Bed Foundation Method Application to Denouval Barrage" by Aubert, 1982.

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