B - Operations – Transporting – 21 – F
Patent
B - Operations, Transporting
21
F
25/115, 140/27,
B21F 27/10 (2006.01) B21F 27/00 (2006.01) B28B 19/00 (2006.01) F16L 58/06 (2006.01)
Patent
CA 1049898
Abstract of the Invention A welded wire mesh strip employed to reinforce a concrete pipe coating has its longitudinal wires deformed to an extent that increases progressiv?l? across the strip. The coating is applied to the pipe by rotation of the pipe while moving it past a concrete spraying station and simultaneously winding the reinforcing strip onto the concrete to become embedded therein. The non-uniform deformation of the longitudinal wires enables the strip to accommodate to the frustoconical shape that the exposed concrete temporarily assumes at the spraying station.
236268
de Kok Johannes A.
Nijs Marc
Vanassche Frits
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