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APPARATUS FOR GRIPPING AND LIFTING CONSTRUCTION CASTINGS
专利权人:
WALL, ERWIN
发明人:
WALL, ERWIN
申请号:
CA20102718785
公开号:
CA2718785(C)
申请日:
2010.10.25
申请国别(地区):
加拿大
年份:
2018
代理人:
摘要:
An apparatus for gripping and lifting objects such as construction castings has a T-shaped frame comprising elongate horizontal and vertical frame members. The vertical frame member is slidably received in one end of a hollow sleeve member which is connected to its upper end to a lifting means such as a loop or hook. A pair of articulated pivot arms are each connected at one end to the hollow sleeve member and at the other end to the horizontal frame member, with a joint being provided between the ends of each pivot arm. Carried at the ends of the horizontal frame member are a plurality of contact members which are adapted to contact and grip the sidewall of a construction casting. In use, the apparatus is placed over a construction casting with the horizontal frame member resting on the upper surface and with the contact elements in position facing the side wall of the casting. The apparatus is then lifted, for example by a backhoe or loader, which causes the sleeve member to slide upwardly along the vertica
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