Traversing hoists – With haul-in line
Patent
1983-02-16
1985-10-01
Blix, Trygve M.
Traversing hoists
With haul-in line
212146, 212205, 212209, 212218, 294 811, 60468, 60494, 254361, 254273, 242 7553, B66C 1306, B66C 502
Patent
active
045440700
ABSTRACT:
An apparatus for controlling sway and pendulous motion of suspended loads is disclosed which is particularly suited for embodiment in association with a mobile crane or similar hoist system. The arrangement includes stabilizing cables attached to a load lifting structure or spreader of the crane. The stabilizing cable is reeled and unreeled as the load lifting structure is moved up and down, respectively. The reel for the stabilizing cable is connected to a hydraulic motor which is driven by a pressurized fluid source when the load lifting structure is raised to reel in the stabilizing cable reducing and abating any pendulous motion. Upon unreeling of the stabilizing cable and lowering of the load lifting structure, the fluid flow through the hydraulic motor is reversed and directed through bypass circuitry around the hydraulic motor. The bypass circuitry includes a fluid flow restrictor to hydraulically dampen the hydraulic motor during unreeling of the stabilizing cable, thereby allowing the cable to remain taut to effectively abate and/or eliminate the pendulous motion of the load lifting structure and attached load.
REFERENCES:
patent: 2008687 (1935-07-01), Dean
patent: 2082473 (1937-06-01), Tyler
patent: 2249947 (1941-07-01), Doe
patent: 2425496 (1947-08-01), Tyler
patent: 2447441 (1948-08-01), Tweedale
patent: 2654382 (1953-10-01), Ball et al.
patent: 2654383 (1953-10-01), Hopkins
patent: 2802337 (1957-08-01), Bunch
patent: 3378158 (1968-04-01), Lopez
patent: 3532324 (1970-10-01), Crittenden
patent: 3945504 (1976-03-01), Wright
patent: 4279347 (1981-07-01), Appleman
patent: 4358020 (1982-11-01), Thiele
Blix Trygve M.
Johnson R. B.
Mi-Jack Products Inc.
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