Rotary tower crane for construction purposes with a distributor

Details Rotary tower crane for construction purposes with a distributor Rotary tower crane for construction purposes with a distributor

1978-03-10

1979-12-25

Sheridan, Robert G.

Traversing hoists

Overhead

Cable

137615, 212 58R, 212 66, B66C 2300, F16L 316

Patent

active

041801709

ABSTRACT:
A rotary tower crane for construction purposes comprising a non-rotating mast, a boom mounted at the head of the mast by a rotary connection so as to be swingable about the mast axis, a lifting device on the boom consisting of a hoisting rope which can be raised and lowered, and a distributor device for supplying and distributing concrete in the working area of the crane. The distributor device comprises a platform mounted on the mast below the rotary connection, an articulated distribution arm serving as a carrier structure for a concrete conveyor pipe formed in a plurality of sections connected together by ram-actuated connections, and having a rotatable mounting located on the platform. The platform is mounted on the mast by a ram-actuated rotational coupling so that the platform may be swung about an axis parallel to the axis of the crane mast to provide an operational field for the platform which is limited by the extent of swing of the platform on both sides of the crane mast.

REFERENCES:
patent: 3213575 (1965-10-01), Boczek
patent: 3459222 (1969-08-01), McElroy

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