B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
209/148
B07B 1/28 (2006.01) B07B 1/42 (2006.01) B07B 1/46 (2006.01) B07B 1/48 (2006.01)
Patent
CA 1327957
Abstract The present invention relates to a screening apparatus that comprises at least two frame systems that can move relative to each other, with grate bars that are associated with each system, said grate bars alternating with each other by pairs and being connected by flexible screen elements that are secured to them, that bridge the gap between said grate bars, and which are tightened and slackened by means of a relative movement of the two systems, this movement being brought about by an eccentric shaft that is supported exclusively on the two systems and rotated by a driving system. According to the present invention, this system has been improved in that the eccentric shaft is arranged at one end of the two systems, and these are connected to each other at the other end or at a distance from this by means of an element, such as a connecting rod or rubber blocks,that ensures an essentially linear relative movement of the two systems towards each other. It is preferred that the cited distance corresponds to that distance that separates the pole of acceleration of the vibratory systems from the eccentric shaft.
610284
Fetherstonhaugh & Co.
Ife Industrie-Einrichtungen Fertigungs-Aktiengesellschaft
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