Abstract: A flash butt welding facility exhibits a housing (1) and a slide (2) linearly displaceable in the former. Respectively one clamping system is installed in the housing (1) and in the slide (2), by means of which profiled workpieces, e.g. rails (5a, 5b), can be retained and positioned. A device for displacing the clamping systems, especially for compressing profiled workpieces (e.g. rails), comprises at least one press cylinder (11) arranged above the workpiece clamping axis (17) and acting in the longitudinal direction and at least one lever (8) rotatably connected to the slide (2) in the force application point (9). The press cylinder (11) is connected to one end of the lever (8). The center of the lever (8) is articulated (7a) to the housing by way of a pull rod (6a). The pressing force produced above the rail clamping axis (17) is made to be effective in the clamping axis in this way.

Abstract: A collapsible table comprises table leaf and leg elements, the table leaf elements being either hinged to one another or to table leg elements. This non-detachable connection of the elements permits the table to collapse in an accordian-like manner into a small space, and to be loaded and transported on a chassis. The assembled table can be prevented from collapsing by a displaceable retaining bolt located at the abutting joints of two table leaf elements. By hinging the elements, tables with a random table surface size can be obtained, while being assembled, disassembled and stored in a simple manner.

Abstract: A table, especially a club table with a top surface having a central planch or surface portion which is movable with respect to the surrounding table top between a position in which it is flush with the surrounding table top and a position in which it is elevated above the surrounding surface. The central surface portion is supported and moved by a motor and a hoisting mechanism centrally disposed in the table, the region around the hoisting mechanism having storage shelves which are exposed when the planch is moved above the surrounding table top. Three embodiments of drive mechanisms are disclosed.