B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 51/00 (2006.01) B01D 29/11 (2006.01) B01D 33/067 (2006.01) B07B 1/18 (2006.01) D21D 5/16 (2006.01)
Patent
CA 2117077
2117077 9304797 PCTABS00020 A method of manufacturing a screening drum for the screening of fibre material. A plane rectangular plate (1) is provided on its front side with a great number of parallel grooves (2) extending over the entire plate. A number of supporting strips (3) are welded on the front side of the plate across the grooves (2). The plate is slotted (4) from the rear side directly in front of the grooves. The plate finally is bent to a drum, its front side facing outward and the slots (4) extending substantially axially.
Ab Knutsilplatar
Fetherstonhaugh & Co.
LandOfFree
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