Rake movement speed control

Details Rake movement speed control Rake movement speed control

1986-04-21

1988-02-16

Fisher, Richard V.

Liquid purification or separation

Processes

Separating

210159, 210415, 55296, B01D 2904

Patent

active

047253665

ABSTRACT:
The present invention relates to a raking apparatus which has at least an upper section and a rake section rotatably coupled to the upper section for rotatable movement from a first position spaced from the bar screen to a second position for removing debris from the bar screen. The rake section moves from the first position to the second position under the influence of a counterweight or other biasing force. A shock absorber placed between the rake section and the upper section controls the forward motion of the rake section to prevent damage to the rake apparatus from uncontrolled forward movement of the rake section from the first position to the second position.

REFERENCES:
patent: 2128347 (1938-08-01), Briggs
patent: 3358837 (1969-12-01), Tillett et al.
patent: 3482698 (1969-12-01), stnas
patent: 3591006 (1971-07-01), Daferner
patent: 4265750 (1981-05-01), Meonier
Manual for Installation, Operating, and Maintenance Instructions for Jeffrey Cantenary Bar Screen with Shaft Mounted Reducer, issued Dec., 1985 including Sections I, II, III and IV, No. 241169.
Modern Industries Inc., "Modern Motion Controls", Erie, Penn., Sep. 1980.

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