Abstract: A refrigerating appliance contains a housing that encloses an interior space. A shelf can be mounted at different heights on walls of the housing by brackets that are each joined to one of the walls in a manner that enables them to pivot about a first axis and joined to the shelf in a manner that enables them to pivot about a second axis that is offset with regard to the first axis.

Abstract: In a post-mix beverage dispenser system including beverage concentrate containers and a storage tank for the supply of diluent through an electromagnetically actuated valve, the beverage concentrate is provided to the mixing station in a series of individual pulsed portions by a reciprocating piston pump coupled to the containers for the beverage concentrate. An electromechanical control circuit is also provided for rhythmically opening and closing the electromagnetic valve for a pulsed supply of diluent in synchronism with the pulsed delivery of the beverage concentrate for providing a mixture of precise proportions.

Abstract: A carbonator tank in a post-mix beverage dispenser is provided with an electrically powered circulating pump. The pump is mounted in an opening in the bottom of the tank and includes a flow-through channel for dispensing carbonated liquid from the tank through the housing of the pump. The tank includes a cooling coil for forming an ice bank around the interior walls. The heat generated by the pump motor precludes the freezing of the carbonated water in the flow-through channel.

Abstract: An assembly, especially for a beverage-vending machine with a container for the storing, cooling and carbonating of water including two measuring electrodes arranged in the container at differing horizontal and vertical distances from an electrically conductive inner wall of the container connected to ground, one of these in the area of the ice layer under formation. The measuring electrodes obtain resistance values for the ice and/or water that arise between the electrode and the inner wall of the container. In order to cool the water independently from its physical-chemical composition, potentials corresponding to the resistances are derived and are supplied to a differential amplifier. Depending on a size comparison of the two resistance values, a cooling apparatus that affects the contents of the container is switched on or off.

Abstract: A beverage concentrate container includes an integrally connected piston pump as a concentrate dosing unit. The container and piston pump are insertable into rigid support within a beverage dispenser cabinet for mechanical interconnection with a drive mechanism for the pump. The container and pump combination (syrup package) are fabricated from materials which are disposable.

Abstract: A drive system for side-by-side piston pumps connected to beverage concentrate containers in a post-mix beverage dispenser system is described. An electric motor rotates a drive shaft in either a forward or reverse direction for the selective actuation of one or the other of the piston pumps. First and second hollow shafts are concentrically disposed around the drive shaft, one hollow shaft being mechanically coupled through a cam and lever arrangement to each of the piston pumps. Free-wheeling clutches are provided between the drive shaft and each of the respective hollow shafts such that one hollow shaft is coupled to rotate with the drive shaft in the forward direction of rotation of the drive shaft and the other hollow shaft is coupled to rotate with the drive shaft in the reverse direction of rotation of the drive shaft.

Abstract: An apparatus for cooling the contents of a vessel in which refrigerant is passed through pipelines placed as a coil alongside the outer wall of the vessel, the pipelines in the areas of the starting end and of the finishing end of the coil are fastened upon the vessel by clamping elements and laid under tensile stress alongside the vessel.

Abstract: A circuit configuration for regulating the filling and refilling of containers with liquids, such as a carbonator vessel, and comprises a liquid container and an electronic circuit for reading the liquid level in the container at a single level and generating a level signal corresponding to the liquid level sensed, and in the event the level falls below a predetermined level, causes a flow regulator controlled by a timer to provide a refilling with an overshoot so as to permit the liquid level to rise to a second predetermined level above the first predetermined level so that the volume of the head space and pressure within the container is held substantially constant.

Abstract: An electromagnetic assembly including an electromagnetic coil wound on a core of ferromagnetically conductive material. A temperature protection circuit includes a fuse which breaks when the electromagnetic assembly becomes overheated. The fuse is thermally coupled to pole pieces of the assembly and is in electrical circuit with the coil.

Abstract: Electromagnet system for influencing a dipper armature forms part of a closing unit. A solenoid coil with a U-shaped magnetic core for influencing a dipper armature is mounted on a cylindrical core and has on each end a flat pole piece, each of which is connected to the cylindrical core so as to be connected mechanically and conduct magnetically. The U-shaped magnetic flux element of the electromagnet system is mounted with its two pole pieces on support bars of the recipient housing. Stop lugs are mounted on the field spool and are locked in position with appropriately shaped parts of the recipient housing.

Abstract: Shut-off valve especially for pressurized carbonated liquids in automatic beverage dispensers or the like, with an expansion device connected thereto in the form of a hollow-cone-like diffusor, in which an expansion cone is arranged which can be adjusted in the axial direction and the taper of which corresponds at least approximately to the taper of the diffusor, characterized by the feature that the expansion device is arranged in the output of the valve and the expansion cone is provided with several holes which start from its conical surface and open into a central hole which starts from its base. .

Abstract: Apparatus for supplying water to a carbonator tank in a liquid dispensing system includes a water supply delivery control circuit which generates a periodic supply enabling signal of a relatively short duration when the water level in the tank falls below a predetermined level and an enabling signal of a comparatively longer duration when an initial filling of the tank is desired or a system reset switch is manually activated. Both periods are selected so as to prevent damage to the delivery pump, for example, due to an overload condition caused by an interruption of the water supply.

Abstract: A circulation pump system in a storage vessel for liquids, more particularly in a carbonizing tank of a beverage dispenser in which soda water, a mixture of CO.sub.2 gas and fresh water, is chilled and stored under pressure for withdrawal via an outlet connection. The circulation pump is mounted directly above the discharge port of the storage vessel so that the small amount of heat released by the circulation pump is utilized to keep the outlet opening free of ice.

Abstract: A method for roasting coffee beans in a roasting chamber, which includes depositing a quantity of coffee beans in the roasting chamber being small in proportion to the volume of the roasting chamber, directing a heatable air current through the roasting chamber substantially vertically from the bottom upward for rotating, upwardly whirling and circulating the coffee beans in a freely suspended state substantially untouched by each other and by the roasting chamber, and a device for carrying out the method.

Abstract: An apparatus for heating an air current, includes a heating coil being heated until it glows providing radiation in a given region, a device for conducting an air current past the heating coil, an electronic heating power control device connected to the heating coil, and a control sensor connected to the control device in the form of a light radiation sensitive circuit element disposed in the given region.

Abstract: A piston system is used as a pressure-independent flow-volume-regulating valve in which the piston divides the piston chamber into two sections which communicate with one another via a flow-throttling zone and, dependent upon pressures applied which are opposed on the piston by restoring forces, affects control orifices. The restoring force for the piston is guided over a compensating member for temperature-dependent expansions.

Abstract: A water-carbonation system having a pressurized tank which is preferably cooled, a water supply and a CO.sub.2 gas supply. The CO.sub.2 gas supply has a pressure-reducing valve assembly in the supply line. The valve of this assembly is maintained in a closed position by the gas pressure in the tank. However, when this pressure falls below a predetermined limit, the valve will move to an open position to vent the tank to the atmosphere. A signal may be used in conjunction with the valve to notify an operator of the drop in pressure. The valve may also be manually operated to vent the tank. This water-carbonation system can be used in beverage dispensers in which the carbonized water is mixed with beverage concentrates to prepare a beverage that is ready for consumption.

Abstract: A circuit for the control of a refrigeration circuit for at least two refrigeration areas such as the carbonated water supply and beverage concentrate chamber of a beverage dispenser. Priority cooling of one area is achieved by use of a combinational logic circuit in conjunction with refrigeration-requirement sensors so that the CO.sub.2 water supply will be cooled first regardless of a requirement for the cooling of the concentrate chamber.

Abstract: An easy to use system for connecting a bottle-type, gas containing pressurized vessel to a gas-withdrawal unit includes a valve assembly mounted on the pressurized vessel. A longitudinal axis of this valve assembly is substantially perpendicular to a longitudinal axis of the pressurized vessel resulting in an offset outlet design. The system also includes a housing with slotted links for guiding and holding the pressurized vessel as well as a centering device located in front of the gas-withdrawal unit for aiding alignment of an outlet of the valve assembly with an inlet port of the gas-withdrawal unit. A pivot lever is also provided to press and hold the outlet of the valve assembly gastight against the inlet port of the control unit.

Abstract: A roasting chamber for roasting green coffee beans with a heated air current flowing from a lower air inlet region to an upper air outlet region of the roasting chamber, includes a roasting-waste settling chamber disposed in the air outlet region, the settling chamber being in the form of a substantially horizontal annular receiving trough having a substantially vertical central air inlet opening formed therein, an air-permeable and coffee-waste particle-impermeable filter covering the receiving trough, and a supplemental cup-shaped trough disposed concentrically below the receiving trough, the cup-shaped trough having a larger diameter than the air inlet opening and having an edge region disposed at a distance from the receiving trough defining a radial air passage therebetween.