B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
294/13
B66C 1/46 (2006.01) B66C 1/56 (2006.01)
Patent
CA 1066741
Abstract of the Disclosure A center lifting device for lifting and transferring rolls of material, such as paper rolls and the like, having two parts, one inside the other, which can be moved over a limited distance in relation to each other and fitted partly into the hollow in the roll of material, whereby the upper end of the inner part can be attached to a lifting device and at the lower end of the outer part there is a gripping member, which expands and contract under the effect of the moving of the said parts, for attaching the center lifting device to the hollow in the roll of material and at its upper end there is a bolt device for preventing the inner part from rising in relation to the outer part, a driving member which has been fitted resiliently to the upper end of the outer part and can be forced axially downwards and which has a member which works in conjunction with the bolt device for releasing the bolt device from the inner part when the driving member is forced downwards, and a locking member, which has been fitted to retain the driving member at its lower position and which works in conjunction with the inner part in such a manner that the inner part releases the locking member from the driving member when the inner part moves upwards in relation to the outer part at the initial stage of the lift.
261602
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