Other

Spetsialnoe Konstruktorskoe Bjuro Gazstroimashina

Georgy A Arendt

Sergei I Kuchuk-Yatsenko

Vasily A Sakharnov

Mikhail R Unigovsky

Evgeny V Rulevsky

Isaak Y Nemirovsky

Vasily T Ivanov

Boris A Burov

Tsalel S Khaitovich

Galina L Vainshtein

Alexandr L Lipovich

Julian K Konovalov

Vladimir G Chirskov

Vladimir V Pokrovsky

Evgeny I Romanov

Alexandr B Kheinis

A welding bulge removing apparatus comprises a ring-shaped carrier adapted to be placed by means of rollers on welded pipes at the weld bulge, and being provided with a circumferential guideway and gear rim. It also comprises motor-operated carriages each having a driving gear wheel and support rollers. Mounted on the carriages are milling cutter units movable to and from the weld bulge. The gear wheel and the support rollers are brought respectively into engagement with the gear rim and the circumferential carrier.

Apparatus for removing a welding bulge from resistance welded pipes

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.

Pipe laying crane

Growing community of inventors

Moscow, Russia

Georgy A Arendt