发明授权
US3963270A Apparatus for lifting up and carrying concrete poles 失效
用于提升和承载混凝土柱的装置

Apparatus for lifting up and carrying concrete poles
摘要:
This invention relates to an apparatus for lifting up and carrying concrete poles characterized by comprising beams to be lifted up by a crane or the like, cylinders which are respectively provided under each beam at certain intervals and which section has a downward C-shape and further which inner surface is formed into a taper same as that of a pole so that the cylinders can lift up the pole by adhereing to the pole at determined positions, and a safety confirmation equipment to confirm the adhered condition; and the object of the invention is to lift up and carry long tapered concrete poles safely, surely and efficiently.
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