Handling: hand and hoist-line implements – Hoistline attached load supporting frame
Patent
1976-01-05
1977-08-30
Spar, Robert J.
Handling: hand and hoist-line implements
Hoistline attached load supporting frame
214 8, 214621, 294 81SF, B66C 118
Patent
active
040450716
ABSTRACT:
A system for transporting and storing long extrusions including a rack upon which a bundle of extrusions is stacked and a pick-up unit which engages the rack so that the stacked bundle of extrusions may be lifted. The rack includes a pair of spaced apart U-shaped frames each having a base and upwardly extending legs for receiving a stacked bundle of elongated extrusions. Each leg is formed of an outwardly opening channel whose base is provided with a vertically elongated slot near its upper end and with pins arranged within and extending transversely of the channel, one at the lower end of the slot and one at the upper end of the slot. Strapping is engaged around the lower pins and extended through the slots to span the space between the pair of legs of the frame to engage the upper portion of the bundle for securing the bundle within the frame. The upper ends of the legs of one frame telescopically fit into the base of a frame located above it for forming stacks of racked bundles. The pair of frames, together with their bundle, is lifted by engaging the upper pins with a lifting hoist or pick-up unit. The pick-up unit includes a plurality of elongated hollow beams telescoped together to form a composite beam assembly of adjustable working length and a pair of yokes, one mounted on each end of the composite beam assembly. An arm is pivotally mounted on each end of each yoke and the arms are biased or counterbalanced to pivot out of engagement with the rack pins. A pivotally mounted locking lever is associated with each arm and pivoting the lever overcomes the bias of each arm by a camming or abutting contact therewith to engage the arm with the upper rack pin to lock the pick-up unit arms to the rack. A spring-loaded safety bolt engages an aperture in the arm to further lock the arm in a rack engaging position.
REFERENCES:
patent: 3173556 (1965-03-01), Gaudriot et al.
patent: 3261637 (1966-07-01), Bopp et al.
patent: 3514146 (1970-05-01), Zweifel et al.
patent: 3537599 (1970-11-01), Jay
patent: 3559812 (1971-02-01), Wolf et al.
patent: 3727965 (1973-04-01), Cranston et al.
Acorn Building Components, Inc.
Spar Robert J.
Weaver Ross
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