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2 043 293

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C1

(51)

IPC

(21) (22)

Application

92002153/11, 1992-10-26

(22)

Actual filing date

1992-10-26

(45)

Published

1995-09-10

(72)

Inventor

Boldyrev R.N.Denisov A.S.Zlotnik M.I.Krupitskij S.M.Matveev V.V.Parfenov V.V.

(73)

Holder

Matveev Vasilij Vilenovich

SELF-PROPELLED LOADING-UNLOADING CRANE Russian patent published in 1995 - IPC

Abstract RU 2043293 C1

FIELD: mechanical engineering. SUBSTANCE: self-propelled crane has casing and rotary crane horizontal frame mounted on casing. Frame has four independent supports, each having hydraulic cylinder, stem and piston. Prior to operating the crane, frame is positioned in horizontal plane on three supports, with one of supports made in the form of a group of individual supports which are in fluid communication one with the other. Cylinders of hydraulic supports of groups of supports are locked by hydraulic locks. During operation of crane all supports are disintegrated and each is retained by respective hydraulic lock. Working cavities of cylinders are in fluid communication with body of auxiliary rotary slide valve, which has slit. It allows various combinations of three-support system to be constructed. EFFECT: wider operational capabilities and enhanced reliability in operation. 2 cl, 4 dwg

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RU 2 043 293 C1

Authors

Boldyrev R.N.

Denisov A.S.

Zlotnik M.I.

Krupitskij S.M.

Matveev V.V.

Parfenov V.V.

Dates

1995-09-10—Published

1992-10-26—Filed

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