Rotary screen appliance

Details Rotary screen appliance Rotary screen appliance

1977-04-26

1980-01-22

Lutter, Frank W.

Classifying, separating, and assorting solids

Sifting

Drum sifters

209382, 209407, 209413, B07B 124, B07B 154

Patent

active

041849442

ABSTRACT:
A rotary screen appliance for the sifting of sand at a construction site is fittable directly to the mouth of a motorized driving device such as a cement mixer. A dismantable screen cage is connected to an armature preferably having three guide arms. A fastening portion is slidably attached to each guide arm and extends at an acute angle therefrom such that the fastening portions may engage the mouth of a cement mixer and thereby lock the screen cage thereto. Rotation of the cement mixer causes rotation of the screen cage. A device for rapping on the screen cage and thereby shaking it as it rotates is also provided.

REFERENCES:
patent: 928965 (1909-07-01), Hanna
patent: 1756835 (1930-04-01), Sackett
patent: 3002623 (1961-10-01), Fontaine
patent: 3208593 (1965-09-01), Dietert
patent: 3835955 (1974-09-01), Harkness

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