BEARING STRUCTURE OF LOAD-LIFTING CRANE Russian patent published in 1995 - IPC

Abstract RU 2031072 C1

FIELD: materials handling facilities. SUBSTANCE: bearing structure has longitudinal members 1 interconnected by ties 2 in form of spiral member. Members 1 are connected with ties 2 along longitudinal edges 3 by welding joints. Pitch and dimensions of cross section of spiral member can be either constant or variable in length. Axis of spiral member coils is center of its cross section which can be circular, tetragonal, triangular, octagonal or oval. EFFECT: enlarged operating capabilities. 3 cl, 10 dwg

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RU 2 031 072 C1

Authors

Rochev A.A.

Dates

1995-03-20Published

1989-12-11Filed