Abstract: The invention relates to a method and an apparatus for producing a rod- or pipe-shaped intermediate product provided with an end face (106) from a semi-finished connecting element (102) made of metal, in particular an insertion end of a drill or chisel attached in an axially movable manner in the chuck of a hammer drill, the connecting element (100?) having at least one rotary entrainment surface (162, 164) and at least one locking depression (122, 124), the locking depression (122, 124) being preferably embodied as a locking groove, a semi-finished connecting element (102) being provided, the at least one rotary entrainment surface (162, 164) being formed in the semi-finished connecting element (102) by axially forcing the semi-finished connecting element (102) in the direction of the longitudinal axis (136) of the semi-finished connecting element (102) into a longitudinal die opening (204) of a die (202), or being embossed in the semi-finished connecting element (102) by radially applying at least one movab

Abstract: The invention relates to a method for producing a rod- or pipe-shaped connecting element (100, 100?) having an end face (106) from a semi-finished connecting element (102) made of metal, in particular of a drill or chisel insertion end which is secured in an axially movable manner in a chuck of a hammer drill, a semi-finished connecting element (102) is provided, characterized in that at least one radially movable forming body (206) guided in the recesses (204) of a die (202) for forming at least one longitudinal groove (122, 124) closed on both sides in the semi-finished connecting element (102) has a smaller longitudinal extension (LR) than a planned length (L) of the longitudinal groove (122, 124) and that the forming of the at least one longitudinal groove (122, 124) closed on both sides in the semi-finished connecting element (102) is performed by radially applying the at least one forming body (206) and by subsequently axially shifting the semi-finished connecting element (102) in a longitudinal die ope

Abstract: A support fitting is used for height-adjustable support of a substantially horizontally extending bearing and guiding track, for a camera trolley (dolly), and has a fitting body with an upper face, for directly or indirectly underpinning the track; and on a lower face lying opposite the upper face, receiving and/or fastening mechanism for fixing at least one support element, so the support fitting can be supported at a certain height with respect to a base. The fitting body can have at a stop member between the upper and lower face for connecting components that substantially extend below the contact surface (e.g. girders or sleepers). A number of variants are disclosed including one having a height-adjustable support for a substantially horizontally extending bearing and guiding track for supporting a camera trolley.

Abstract: A camera crane has a two-arm boom supported in swivel fashion by a support olumn whose height can be adjusted. Swivel-mounted to the first arm is a platform for a camera and, if so desired, a seat for a camera-man, and swivel-mounted to the second arm is a cage to receive balance weights. A parallel-guide apparatus provides for the parallel guidance of the platform and the cage when the boom is rotated. In order to provide a greater hoist area, the boom--whose first arm of length "a" supporting the platform in standard operation is longer than the second arm of length "b" supporting the cage in standard operation--is provided with an extension piece of length "c" serving to lengthen the second arm. The cage can be replaced at the end of the second boom arm, lengthened with the extension piece, by the platform, and the cage can be attached in place of the platform at the end of the first boom arm.