Trash catching device

Details Trash catching device Trash catching device

1975-01-17

1976-08-24

Granger, Theodore A.

Liquid purification or separation

Structural installation

Flume stream type

210160, 210526, B01D 3314

Patent

active

039765733

ABSTRACT:
An endless screen extends around an upper roller, above the stream of a ditch or the like, and a lower roller, submerged in the stream. A cleaning brush engages the underside of the lower reach of the screen, the brush rotating in a direction opposite to the movement of the screen, while a roller or rod supports the screen just below the brush. The brush may be driven directly from a motor and speed reducer, with a belt drive to an upper pulley producing further speed reduction, or a speed reduction drive between the motor and the brush with a belt or chain drive to the upper roller may be utilized.
The lower roller for the screen has a fixed center surmounted by a plastic or rubber bushing about which a cylinder of the lower roller rotates.
A weir directs water onto the screen, the weir including a transverse partition mounted in the ditch and having a rectangular slot therein. A rectangular funnel occupies the slot, having a base member extending to the screen and side members extending to side plates mounted on bars of a frame, with the forwardly extending members inside the plates.

REFERENCES:
patent: 658196 (1900-09-01), Whitney
patent: 840973 (1907-01-01), Todd
patent: 1076483 (1913-10-01), Collar
patent: 1188340 (1916-06-01), Tark
patent: 1585461 (1916-05-01), Brackett
patent: 3802565 (1974-04-01), Hughes et al.

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