B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
B21B 17/00 (2006.01) B21B 31/08 (2006.01) B21D 5/12 (2006.01)
Patent
CA 2184208
A tube forming machine having at least two upper forming roll members in the breakdown section which may be selectively indexed into cooperative working relation with a lower forming roll member to produce different size tubes without the necessity of physically removing the upper forming roll member and replacing the same with another forming roll member of a different configuration.
Ruple Lewis H.
Taber Susan J.
Abbey Etna Machine Co.
Aeip Llc
Lesperance & Martineau S.e.n.c.
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