B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
209/100
B07B 1/28 (2006.01) B07B 1/42 (2006.01) B07B 1/46 (2006.01) B07B 13/16 (2006.01) B65G 65/44 (2006.01)
Patent
CA 1147297
P2242. 8-P ABSTRACT OF THE DISCLOSURE The disclosure relates to a combination feeder and sifter for particulate material. The apparatus includes a vertically elongated hopper for holding a bulk supply of the particulate material. A vibratory unit is positioned below the hopper and is movable independently thereof. An upper panel of the vibratory unit constitutes a bottom-forming panel of the hopper and is in direct contact with the bulk supply of particu- late material. The bottom-forming panel has an adjustable feed rate device thereon which, when the vibratory mechanism is in operation, provides for a controlled rate of flow of particulate material from the hopper onto a vibrating sifting screen supported directly underneath the panel. The configuration and arrangement of the supply hopper and the bottom-forming panel are such that the mass of particulate material affecting the operation of the vibratory panel approximates that of an imaginary conical pile of the material. The apparatus permits a single vibratory drive unit to carry out both feeding and sifting operations simultane- ously.
368772
Haight Ehrick K.
Osler Hoskin & Harcourt Llp
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