| 摘要 |
PCT No. PCT/AU96/00106 Sec. 371 Date Aug. 27, 1997 Sec. 102(e) Date Aug. 27, 1997 PCT Filed Feb. 28, 1996 PCT Pub. No. WO96/26794 PCT Pub. Date Sep. 6, 1996A screening device including a screen includes a first side for presentation to a body of material to be screened and a second side. A plurality of elongate screen openings are formed in the screen extending between the first and second sides thereof. A plurality of tines mounted on support means disposed on the second side of the screen. Each tine is movable along a cyclical path at least part of which includes one of the elongate screen openings whereby the tine is receivable in and movable along the elongate screen opening. The tine extends beyond the first side of the screen for at least part of the movement thereof along the screen opening. The screening device may be incorporated in various machines including a recovery head for an underground mining apparatus.
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