Material or article handling – Land vehicle or boat tilting and lifting devices
Patent
1979-03-26
1981-09-22
Blix, Trygve M.
Material or article handling
Land vehicle or boat tilting and lifting devices
212177, 212189, 414756, 414764, 294 74, B66C 120, B66C 2378
Patent
active
042907314
ABSTRACT:
An apparatus for righting or picking up overturned vehicles is provided. In the illustrated embodiment, the apparatus is a truck-mounted turntable able to rotate in either direction supporting a first pair of parallel frame members which are moved through a range of angularly elevated positions by hydraulic jacks. The first parallel frame members support a second pair of parallel frame members which are also deflected relative to the first pair by hydraulic jacks. A third pair of parallel frame members telescope inside the second pair, and they are extended by hydraulic jacks. The third pair terminates at a transverse frame member which is pin-connected to a pair of legs when the apparatus is extended to obtain support. The extended apparatus includes, at multiple locations, cable winches having spools with a cable wound thereabout. The cables are able to be extended and retracted and connect to slings adapted to be passed beneath an overturned vehicle such as a tractor-trailer rig. The slings are lifted to raise the overturned vehicle, and, through the use of a winch at each end of each sling, the overturned equipment can then be elevated and turned erect.
REFERENCES:
patent: 2426284 (1947-08-01), Peterson
patent: 2622540 (1952-12-01), Stewart et al.
patent: 3622025 (1971-11-01), Petersen
patent: 3640413 (1972-02-01), Klein
patent: 3848751 (1974-11-01), Holland, Sr.
patent: 3874532 (1975-04-01), Metailler
patent: 4002242 (1977-01-01), Eriksson
Blix Trygve M.
Siemens Terrance L.
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