Drive device for rotating hollow elements

Details Drive device for rotating hollow elements Drive device for rotating hollow elements

1999-05-17

2000-12-26

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Radially expansible or contractile

2425737, 242576, B65H 7524

Patent

active

061645877

ABSTRACT:
A drive device for rotating a hollow element (31) comprises at least three pads (32) movable between a first position where the hollow element (31) can be threaded onto the device (30) and a second position where each pad (32) is moved radially in relation to an axis of rotation of the device (30). The device (30) further comprises a mechanism (33) for actuating the pads (32) in such a way that when a hollow element (31) is on the device (30), each pad (32) is at an approximately equal distance from the axis of rotation of the device (30).

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patent: 5451010 (1995-09-01), Heuser

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