Gripper mechanism for tension reel mandrel and the like

B - Operations – Transporting – 21 – C

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242/63.2

B21C 47/06 (2006.01) B21C 1/14 (2006.01) B21C 47/32 (2006.01) B65H 19/28 (2006.01) B65H 75/28 (2006.01)

Patent

CA 1139728

GRIPPER MECHANISM FOR TENSION REEL MANDREL AND THE LIKE ABSTRACT OF THE DISCLOSURE A reel with an expandable mandrel support device for coiling material such as flat rolled steel strip or strips, the reel mandrel having a gripper mechanism for effectively securing each leading end to the reel mandrel which mechanism has numerous cam action gripper bars that singularly can increase gripping force as the tension in the strip strands clamped by one or more cams is developed by the reel; a positioning wedge assembly for these gripper bars constructed to first position and hold immovable, in an operative position, except for movement due to tension buildup, and secondly to positively and quickly release all gripper bars from the strand ends and hence from the reel mandrel when the coils formed by the reel mandrel are to be removed.

366933

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