FIELD: materials handling equipment. SUBSTANCE: boom mechanism 1 is installed on gantry 4 furnished with running wheels 5 and outriggers 6. Gantry 4 is made for folding in travelling position and is provided with additional wheels mounted on support posts 7 and 8 and on outriggers 6 by means of hydraulic suspensions. Gentry running wheels 5 and additional wheels 18 and 19 on outriggers 6 are installed for movement in relatively perpendicular directions. EFFECT: enlarged operating capabilities. 4 cl, 3 dwg
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Authors
Dates
1997-07-10—Published
1994-09-01—Filed