Load-engaging device for hoisting concrete building elements

B - Operations – Transporting – 66 – C

Patent

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Details

B66C 1/66 (2006.01)

Patent

CA 2145645

A load-engaging element (1) comprises a body having a protruding arm (7) for turning the body (6) in a hemispherical recess (4) in a concrete building element (5), said arm (7) having an abutment surface (8) abutting firmly against the surface (9) of the concrete element (5), when the latter is being hoisted. The body (6) is adapted to receive the head (2) of a lifting bolt (2,3) by means of a cut-out (11), through which the head (2) may be inserted in and removed from the slot (10). The end link (17) of a chain (16) is placed in the central slot (12) and retained by the bolt (14). When the concrete element (5) is being lifted, the pull in the chain (16) will exert a turning moment on the body (6), causing the abutment surface (8) on the arm (7) to be pressed against the surface (9) of the concrete element (5), so that the body (6) cannot inadvertently be released from the load-engaging device (1).

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