Handling: hand and hoist-line implements – Spacing hoist bar or frame – Load gripping units
Patent
1981-08-27
1983-08-09
Cherry, Johnny D.
Handling: hand and hoist-line implements
Spacing hoist bar or frame
Load gripping units
294 87R, B66C 114
Patent
active
043974929
ABSTRACT:
A suspension or rig for simultaneously setting a plurality of roof trusses on a building framing. A plurality of spaced vertical cables are suspended from a pair of horizontally extending pipes and connected to a central portion of each top sloping side of each truss, making two suspensions for each truss. A pair of horizontally extending spaced parallel pipes have ends connected to the pair of pipes. Suspending apparatus lifted by a crane comprises four linkage elements connected to end portions of the last mentioned pair of horizontally extending spaced parallel pipes. The improvement comprises securely fastening each truss at a predetermined distance from its apex to assure a perfectly horizontal and co-planer base for all the trusses, also the addition of eyes near the base portion of the trusses, through which eyes a cable or rope is passed together with flexible cable or rope portions for holding the trusses securely together equi-distantly and in spaced parallel relationship.
REFERENCES:
patent: 1007663 (1911-11-01), Atterbury
patent: 1047954 (1912-12-01), Krohne
patent: 1291437 (1919-01-01), Desch
patent: 1762271 (1930-06-01), Hutchings
patent: 1846038 (1932-02-01), Owens
patent: 1970617 (1934-08-01), Morgan
patent: 2472500 (1949-06-01), Swanson
patent: 4269442 (1981-05-01), Craig
Cherry Johnny D.
Ruano William J.
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