Concrete aggregate collecting apparatus

Details Concrete aggregate collecting apparatus Concrete aggregate collecting apparatus

1990-12-18

1992-01-21

Hajec, Donald T.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Sorting special items or sorting by methods and apparatus...

209239, 209240, 209270, 209288, 209369, 209379, 366 18, 366 60, 366601, B07B 122, B07B 150

Patent

active

050825534

ABSTRACT:
An aggregate collecting apparatus. A meter which measures the gross weight of the rotary drum is linked to the speed change gear for the rotary drum in such a manner as to be operationally connectable therewith so that the speed of rotation of the drum can be varied in accordance with variations in the amount of sludge charged in the drum. The upstream and downstream edges of a trommel in the rotary drum are intermittently twisted in each of opposite directions so that gravel clogging the trommel is automatically removed.

REFERENCES:
patent: 2315281 (1943-03-01), Smith
patent: 2942731 (1960-06-01), Soldini
patent: 4127478 (1978-11-01), Miller
patent: 4435081 (1984-03-01), Del Fabbro
patent: 4543180 (1985-09-01), Riker
patent: 4636304 (1987-01-01), Hoppe

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