Pile driver with adjustable pile holder - has two curved shells, one rotatable inside other with scale showing angular displacement

摘要

The pile driver has two sliding shell elements with the same radius of curvature, one element being fastened to the ram guide. The second element is rotatable inside the first and includes a hinge (8) so that one side can swing about an axis parallel to the longitudinal axis of the shell elements. The second element includes a pile holder (9, 10) the end surface of the first element carrying an angular scale along which a pointer (14) on the second element moves. The second element can be locked in a desired position.