Abstract: A device for the swiveling movement of a sheet is described. A stationary bearing part supports an articulated part in a swivelable manner. The articulated part supports the sheet and is movable about a substantially horizontal swivel axis. The sheet is accordingly movable between a lowered position and a raised position, the direction of this movement being determined by a vertical swiveling plane. Energy accumulators, e.g., pneumatic springs, serve as auxiliary lifting means for raising the sheet. These energy accumulators have two connection ends which are loaded in opposite directions and determine the effective direction of force of the energy accumulator. For the purpose of an advantageous arrangement of the device which economizes on space, it is proposed that the energy accumulator be arranged with its effective direction of force substantially transverse to the swiveling plane of the sheet. The two connection ends of the energy accumulator are constructed as three-dimensionally acting rolling joints.

Abstract: A connector which can separably couple a hollow first profiled member with a channeled second profiled member has an open-ended housing for a reciprocable clawed coupling member and an eccentric which is rotatable to move the coupling member between extended and retracted positions. The coupling member has a front projection which can be pushed by a disc of the eccentric to move the coupling member to extended position in which the claw or claws of the coupling member can enter a channel of the second profiled member. The coupling member further includes a rear projection which can be pushed by the disc to move the coupling member to the retracted position in which the claw or claws bear against an internal surface of the second profiled member and urge an outer side of the second profiled member against the adjacent end of the first profiled member. The rear projection is part of a looped rear end portion of the substantially plate like coupling member.

Abstract: A connector which can couple a first profiled member having an internal compartment behind a slotted wall with a tubular second profiled member has an open-ended housing which is installed in the second profiled member and a one-piece profiled plate-like coupling member in the housing. The coupling member has two integral prongs with mirror symmetrical claws at their free ends, and followers adjacent the claws. The housing has integral cams which can stagger the claws by way of the followers in response to longitudinal displacement of the coupling member in the housing as a result of rotation of an eccentric which normally extends into a window of but is depressible into the second profiled member to permit insertion or removal of the connector. The claws can be introduced through the slot in the wall of the first profiled member to be thereupon staggered by the followers in cooperation with the cams in response to rotation of the eccentric in a direction to move the claws toward the housing.

Abstract: A display counter wherein the upper portion of the case has several upwardly and forwardly sloping hollow supports for modules which pivotably mount one or more front panels each of which can be moved to a first position in which it overlies the customer side of the counter and a raised second position in which the internal space of the counter in accessible from the customer side. The modules include linear actuators which can pivot the front panel or panels between the first and second positions as well as to one or more intermediate positions. Each actuator is pivotally secured to a frame of the respective module at the lower end of the corresponding support and to a hinge for a front panel at the upper end of the support. The pintle of the hinge is mounted in the upper end portion of the corresponding frame.

Abstract: A display counter for use in supermarkets and like establishments for temporary storage, cooling and displaying of foodstuffs has a case with a hollow upper section having a pivotable front panel at the customer side and a horizontal counter top. The front panel can be pivoted by one or more fluid-operated motors with assistance from an attendant and through the medium of hinges which are mounted on forwardly extending arms of the skeleton frame of the upper section of the case. The top marginal portion of the front panel is held between discrete or integra rails of the hinges so that its exposed side is normally flush with the upper side of the counter top. One of the rails has a portion which extends rearwardly and overlies the adjacent portions of the arms and of the counter top to seal the interior of the case from the surrounding atmosphere when the front panel is held in its operative position at the customer side of the counter.