B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
B66C 1/54 (2006.01)
Patent
CA 2088539
Prior lifting probes are heavy and awkward to manipulate and operate, and require that the paper roll be destroyed if the probe is jammed in the core of the roll. The present invention allows the main body of the device to be removed if the probe jams to have access to the core, and release the load automatically when the load is set down. It provides an apparatus for lifting objects having a vertically oriented, hollow cylindrical core comprising a) means for connecting a hook or other lifting device; b) a face plate provided with a horizontal aperture; c) a body secured to the face plate having a threaded passageway extending vertically therethrough for receiving a threaded rod; d) linkage means connecting the hook-connecting means to the face plate; e) a hollow sleeve dimensioned to be inserted into the core and comprising at the lower end thereof a plurality of jaw segments forming a diametrically expandable lower end; f) a transverse flange attached to the end of said sleeve having a diameter greater than that of the core; g) a latch assembly attached to the trans- verse flange and provided with a horizontally extending bolt biased to extend into the aperture in the face plate and handle means for releasably retracting the bolt means; h) a rod extending through the sleeve threadably received by the threaded body at the upper end thereof and having at the lower end thereof an outwardly tapered end; and i) spring means biasing the rod downwardly in the sleeve.
Margiottiello John
Oyen Wiggs Green & Mutala Llp
LandOfFree
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