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2 212 374

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IPC

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Application

2001129818/28, 2001-11-08

(24)

Start date

2001-11-08

(22)

Actual filing date

2001-11-08

(45)

Published

2003-09-20

(72)

Inventor

Indenbaum A.I.Lunden E.E.Merkin K.V.

(73)

Holder

Indenbaum Anatolij IosifovichLunden Evgenij EfimovichMerkin Karl Vul'Fovich

BUTT JOINING OF METAL STRUCTURES, PARTICULARLY, TOWER SECTIONS OF TOWER CRANES Russian patent published in 2003 - IPC

Abstract RU 2212374 C2

FIELD: mechanical engineering. SUBSTANCE: invention relates to tower cranes and it is designed use in butt joints of chords of crane tower. Proposed butt joint includes chords of sections to be connected, each being made outer and inner eyes secured on ends of chords, and connecting members fitted in holes of eyes. Connecting members are made with beveled surfaces arranged for interaction. Connecting members are interfastened by special device. Outer surfaces of connecting members and surfaces of eye holes in contact with connecting members are arranged in parallel and are made straight-line. EFFECT: improved reliability of butt joint. 5 cl, 11 dwg

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RU 2 212 374 C2

Authors

Indenbaum A.I.

Lunden E.E.

Merkin K.V.

Dates

2003-09-20—Published

2001-11-08—Filed

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