B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
92/17.7
B05D 7/00 (2006.01) D21F 1/00 (2006.01)
Patent
CA 1235932
ABSTRACT OF THE DISCLOSURE A helix of great length wherein the structure is filled with a filler and wherein the structure is produced by a practice in which the helix structure and filler material are caused to rotate about each other upstream of the point of convergence, while the helix retains its orientation, and the speed of advance of the helix and the speed at which the filler material and helix are rotated are so adjusted that the helix is advanced by one winding during each rotation. The filler material is a braided or woven tube or strip. A core preferably prevents the tube from collapsing.
500043
Fetherstonhaugh & Co.
Siteg Siebtechnik G.m.b.h.
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