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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Authors
Dates
1995-03-20—Published
1989-12-11—Filed