Abstract: In a self-propelled elevator for essentially the transport of persons with a cabin (11) to which at least one drive (14) is assigned, the at least one drive (14) engages with a linear guide (8), directly or indirectly, via at least one drive element (13) for linear driving of the cabin.

Abstract: An elevator car (1) includes, a support frame (8) of a cable-driven elevator system without a machine room, with a compact driving pulley driving machine (7), combine with a brake, integrated in this car (1) and/or its support frame (8). This is to provide an elevator car which can be preassembled outside of an elevator shaft as a unit ready to be installed, with as many functional parts as possible. To this end, the elevator car (1) has the following feathers: the driving machine (7) is equipped with a permanent magnet-excited synchronous motor as the driving source; the operating electronics of the driving machine and the control electronics required for the operation of the entire elevator system from a common, interactive functional unit in the form of an electronic central unit (10); and the electronic central unit (10) is permanently connected to the elevator car and/or its support frame.

Abstract: A cable winch hoisting device for theatrical stages, whereby a plurality of elongated, rod-like holding girders are suspended on cables, and these holding girders are adjustable in height by varying the free cable length between the cable suspension and the holding girder, which determines the position of the respective holding girder. The holding girders are adjustable in height between two end positions without any mutual interference in the clearance spaces which do not overlap with one another and are provided for the holding girders. At least two cables which are uniformly adjustable by the same cable-operating device act on the holding girders and are distributed over the length of the girders. The cable-operating devices are each electrically driven cable drums. The cables acting on the same holding girder can be wound up side by side onto the cable drum of the respective cable-operating device with the same change in free cable length, which determines the position of the holding girder.

Abstract: The invention relates to an elevator car (1) comprising especially, a support frame (8) of a cable-driven elevator system without a machine room, with a compact driving pulley driving machine (7), combined with a brake, integrated in this car (1) and/or its support frame (8). The aim of the invention is to provide an elevator car of this type which can be preassembled outside of an elevator shaft as a unit ready to be installed, with as many functional parts as possible. To this end, the inventive elevator car (1) is characterised by the following features: the driving machine (7) is equipped with a permanent magnet-excited synchronous motor as the driving source; the operating electronics of the driving machine and the control electronics required for the operation of the entire elevator system form a common, interactive functional unit in the form of an electronic central unit (10); and the electronic central unit (10) is permanently connected to the elevator car and/or its support frame.

Abstract: A cable winch hoisting device for theatrical stages, whereby a plurality of elongated, rod-like holding girders are suspended on cables, and these holding girders are adjustable in height by varying the free cable length between the cable suspension and the holding girder, which determines the position of the respective holding girder. The holding girders are adjustable in height between two end positions without any mutual interference in the clearance spaces which do not overlap with one another and are provided for the holding girders. At least two cables which are uniformly adjustable by the same cable-operating device act on the holding girders and are distributed over the length of the girders. The cable-operating devices are each electrically driven cable drums. The cables acting on the same holding girder can be wound up side by side onto the cable drum of the respective cable-operating device with the same change in free cable length, which determines the position of the holding girder.

Abstract: A regulator circuit for controlling the cooling and heating power for automotive vehicles, wherein signals proportional to the external temperature, the internal temperature of the vehicle, and the desired temperature are applied to an input amplifier, the output signal of this amplifier being applied as the desired value to the heating system. This output signal is also fed to a second amplifier which is furthermore supplied with the signal proportional to the external temperature. The output signal of this second amplifier serves as the desired value for the cooling system. By means of this arrangement, excessive cooling at the transition point between heating and cooling, as well as oscillation around this transition point, can be prevented. An economical reheat operation is made possible for dehumidifying the air by appropriate selection of resistor values such that the heating system and the cooling system are in simultaneous operation.