B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
209/95
B07B 1/00 (2006.01) B07B 1/52 (2006.01)
Patent
CA 1120436
ABSTRACT This invention relates to an apparatus for separating fine material from coarse material. The screens at present in use in the mining industry usually are so-called shaking screens. They comprise a screen-cloth, which is subjected to a vibration movement. This type of screen, however, has a very high noise level and also is exposed to heavy wear owing to the vibrations, to which the screen parts are subjected. The present invention provides apparatus of the kind referred to above, in which the noise level and the mechanical wear are substantially lower than in conventional screens. The apparatus according to the invention includes a perforated stationary screen-cloth supported by support members which are interconnected to a closed chain in such a manner that the support members can be moved along an endless path, and means for rotating the portions of the support members abutting the screen-cloth in the direction opposed to the direction of movement of the support members along the path.
323872
Linden-Alimak Ab
Macrae & Co.
LandOfFree
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