Apparatus for discharging material

Details Apparatus for discharging material Apparatus for discharging material

D - Textiles, Paper

21

F

92/17.4

D21F 1/02 (2006.01)

Patent

CA 1237310

APPARATUS FOR DISCHARGING MATERIAL Abstract of the Disclosure An apparatus is disclosed for discharging material through an elongate aperture in a substantially constant amount per unit length of said aperture. The apparatus comprises a screw discharging unit having an inlet end and including a screw housing with a casing wall and a screw rotatably mounted in the screw housing. The elongate aper- ture is provided in the casing wall and extends substan- tially parallel to the axis of rotation of said screw. The screw has a core and at least one screw blade extending around the core and having a predetermined pitch for feeding the material from said inlet end to the elongate aperture. The core and said casing wall define therebe- tween a space having an annular cross section area suc- cessively decreasing in the direction of feed of the screw.

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