Abstract: The present invention relates to an improved arrangement for transferring heavy workpieces from a transport or storage position to at least one machining position or reverse. According to the invention this is achieved by means of a pair of arms (13) which are telescoptically extendable for bridging the distance between the positions and by means of support apparatus (14, 15) which, in the fully or partly extended position for the arms (13), engage and support the arms adjacent their outer ends.

Abstract: The invention relates to a clamping device, especially for clamping work tables, fixtures etc. to a base such as the machine table in a machine tool, comprising a holding means (2) having an enlarged head (4) and clamping means (8) which in the clamping position engage the head (4) of the holding means (2) and a clamping mechanism (7) which in its normal condition acts with its full clamping force against the clamping means but which unloads the clamping means when a disengagement force is applied thereto. In accordance with the invention the clamping means consist of clamping hooks (7) which are pivotable between a clamping position, in which they engage the head (4) of the holding means (2), and a disengagement position, in which they completely disengage the head of the holding means, during simultaneous movement thereof in a direction opposite the clamping direction, and reverse.