Abstract: A gliding edge profile for winter sports equipment, such as7 for example, skis, snowboards and sledges, includes two component parts connected at an angle to one another along their longitudinal edges. The component parts are made of different materials to suit their properties to the stress at hand and can be joined together by laser beam welding, electron-beam welding or plasma jet welding so as to hardened and/or tempered at least in the area of the welding seam.

Abstract: In a method of producing saw bands and saw blades with improved dimensional and setting stability, a supporting band (2) with 0.2 to 0.6% carbon, 0.5 to 6.0% chromium and up to 3.5% tungsten, molybdenum and vanadium—individually or in addition to one another—the remainder being iron, is welded to a cutting band (3) of a high-speed steel and the weld (4) is thereby adjusted to a ratio of its average width to the thickness of the band or blade of 0.30 to 0.9.

Abstract: The invention relates to a rotary evaporator for carrying out a processor-controlled distilling operation. A rotary flask (5), a condenser (8) and a distillate collector receptacle (10) of the rotary evaporator (1) are continually kept under vacuum.According to the invention, the automatically controlled supply of a sample solution to the rotary flask is accomplished by means of a metering receptacle adapted to have the sample solution supplied thereto from a supply container for temporary transitory storage therein prior to transfer of the solution to the vacuum system, or the rotary flask (5), respectively. For discharging the distillate from the distillate collector receptacle (14), an outlet valve associated therewith is operable to connect the collector receptacle to a vacuum conduit (26) for the discharge of the distillate. This provision offers the advantage of permitting substantially discharge of the distillate without requiring the vacuum system to be vented.