| 摘要 |
PURPOSE:To house dust raked up into a hopper by turning a rake operating along a screen by a guide set on an apron. CONSTITUTION:A vertically movable rope 7 and an opening/closing rope 8 are connected to a rake 1 having a top roller and a base roller 3 to enable the rake 1 to vertically move by a drum 10. A guide arm 11 is also provided for the back side of a screen 4 in such a way as to permit it to turn on a supporting point 11a. Since the rake 1 ascending along the screen 4 and the apron 13 pushes up the arm 11 by complement of the roller 3 with a coupler 12, the rake 1 turns on the point 11a and is guided toward above the hopper 6, and dust 5 is thereby dropped and housed into the hopper 6.
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