Handling: hand and hoist-line implements – Grapple – Expanding
Patent
1976-09-17
1977-11-08
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Expanding
B66C 146
Patent
active
040572790
ABSTRACT:
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. The lower end of the outer part has a gripping member thereon, which expands and contracts under the effect of relative movement of the parts, for attaching the center lifting device to the hollow in the roll of material. The upper end of the outer part has a bolt device for preventing the inner part from rising in relation to the outer part. A driving member is fitted resiliently to the upper end of the outer part and can be forced axially downwards and 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.
REFERENCES:
patent: 819359 (1906-05-01), Markland
patent: 1720732 (1929-07-01), Jongedyk
patent: 2701736 (1955-02-01), Heppenstall
patent: 3088769 (1963-05-01), Richardson
patent: 3892437 (1975-07-01), Markinen
Cherry Johnny D.
Eslinger Lewis H.
Oy Finnlines Ltd.
LandOfFree
Center lifting device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Center lifting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Center lifting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-226665