Classifying – separating – and assorting solids – Sifting – Elements
Patent
1980-05-05
1981-09-08
Cuchlinski, Jr., William A.
Classifying, separating, and assorting solids
Sifting
Elements
209403, B07B 154
Patent
active
042883202
ABSTRACT:
A plurality of weighted springy arms are formed integral with, and so as to extend laterally, to one or both sides of, a resilient mounting strip that is disposed beneath, and in contact with, the lower surface of the screen deck of a vibrating screen. The intended vibrating action of the vibrating screen induces an oscillating movement of the weighted springy arms to effect a rapping action of the weighted ends of the arms against the undersurface of the screen deck to loosen material which may have lodged in or plugged the screen openings and to unclog same.
The resilient strips disposed on the extreme sides of the screen need only have weighted springy arms on the side thereof towards the central portion of the screen deck if space on the other side of the strip does not permit proper disposition and action of such an arm; while the strips disposed in the central section of the vibrating screen have arms extending from both sides of the resilient strip.
The springy arms, are either cast in suitable rubber or plastic; with either integral weighted ends or with apertures disposed at their ends to receive suitably sized weights, formed from metal or other material of appropriate weight characteristics. Alternatively the arms may be cast about a springy metal leaf to impart appropriate and desired spring characteristics to the arm to facilitate the coaction of the arm and screen deck and unclogging of the screen apertures.
REFERENCES:
patent: 711133 (1902-10-01), Snyder
patent: 2014128 (1935-09-01), Deister et al.
patent: 3070230 (1962-12-01), Peterson
patent: 4122006 (1978-10-01), Christensen et al.
patent: 4169788 (1979-10-01), Grunbaum
Cuchlinski Jr. William A.
Litton Systems Inc.
Pollack Morris I.
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