B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/13
B21B 17/00 (2006.01) B21B 19/00 (2006.01) B21B 25/02 (2006.01)
Patent
CA 1164252
ABSTRACT OF THE DISCLOSURE In a rolling mill having a perforating head supported on a bar which is rotatable and longitudinally displaceable, the bar is supported on a carriage by way of a gripper fixed to the carriage and engaging a recess in the bar with sufficient radial play to allow rotation of the bar. The recess also affords axial clearance so that the rolling reaction on the perforating head dis- places the rear end of the bar into abutment with a planar end contact face of a rotating bearing. The abutment of the end of the bar against the contact face allows the bar to be ejected laterally without previous axial dis- engagement of the bar from the bearing.
378075
Johnson Douglas S. Q.c.
Vallourec
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