FIELD: handling engineering. SUBSTANCE: lower belt of each support is made in the form of a link which one end is connected to a beam by a horizontal hinge. The other end of the link is made for connection with a frame in a working position and positioning the longitudinal axis of the beam along the line passing through the center of the articulated joint of the link and the beam and the point of intersection of longitudinal axes of the beam and a jack which lie in one vertical plane. EFFECT: improved structure. 4 dwg
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SELF-PROPELLED JIG CRANE | 2012 |
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SU1777587A3 |
Authors
Dates
1994-02-15—Published
1990-12-13—Filed