Abstract: A valve for pressurized containers with a closing member which is movable toward a valve seat and engages thereon in a rest position or closing position is proposed. The valve includes a bushing which is fixedly inserted into the container and partly surrounds a sliding sleeve which at its upper end is provided with the valve seat and includes at its lower inner end a plurality of recesses. Connected to the bushing are a plurality of arms wherein each of the arms is guided through a respective one of the recesses. A rod which is disposed centrically and slidable within the bushing and the sliding sleeve and which on its upper end is provided with the closure member is in connection at its lower end with each of the arms so that upon downward movement of the sliding sleeve the arms are moved radially outwardly and the valve is opened.

Abstract: In a pressure vessel containing fluid or pasty product and equipped with a manually operable discharge valve spring-biased to a closed position, dispensing means for allowing a metered amount of said product to reach said discharge valve on operation thereof comprise a housing defining a metering chamber which is closed by a flexible diaphragm and can communicate with the discharge valve by way of a connecting passage. Further valve means disposed between the vessel interior and the metering chamber are adapted to be closed when the discharge valve is opened to expel the metering chamber contents and to be opened for replenishing the metering chamber when the discharge valve is closed.

Abstract: In the selection and dispensing of one of a plurality of recording discs stored in compartments in a juke-box, each of said discs bearing a different code, one of said discs is selected by depressing a key, whereupon the stored discs are scanned automatically and, on detection of the selected disc, a dispensing mechanism is actuated automatically.