Traversing hoists – Overhead – Cable
Patent
1977-04-12
1979-01-02
Oresky, Lawrence J.
Traversing hoists
Overhead
Cable
180 948, 214 1P, B66C 2372
Patent
active
041323173
ABSTRACT:
This invention relates to load-lifting machinery and can find utility when applied to pipe laying cranes made use of in constructing large-diameter pipings. The pipe laying crane of the invention comprises the undercarriage carrying the framework with the engine and transmission, and mounted equipment. The mounted equipment incorporates the loading boom with a pipe hanger, the counterweight and the hoist which is connected to the loading boom and to the pipe hanger through a system of tackles. The undercarriage is made sectionalized i.e., it is composed of the two track bogies arranged on both sides of the framework, one of said bogies carrying the loading boom. The latter bogie is connected to the other bogie with a possibility of setting motion in the direction square with the frame axis for changing the track gauge of the undercarriage. Besides, the output unit of the transmission that imparts torque to the boom-carrying bogie, is made extensible. Such a pipe laying crane, while in working position (i.e., with the boom-carrying bogie extended), has a greater load-lifting capacity than the prior-art cranes of the same weight, whereas when in the position with the minimized track gauge between the bogies, the crane is transportable by rail or on trailers with its undercarriage in the assembled state.
REFERENCES:
patent: 2681231 (1954-06-01), Kandrocki
patent: 3565273 (1971-02-01), Hahn
patent: 3856149 (1974-12-01), Shaw
patent: 3945518 (1976-03-01), Inoue
Arendt Georgy A.
Burov Boris A.
Khaitovich Tsalel S.
Lipovich Alexandr L.
Pokrovsky Vladimir V.
Oresky Lawrence J.
Spetsialnoe Konstruktorskoe Bjuro Gazstroimashina
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