Abstract: The invention relates to a method for the operation of a pipe organ, with at least one of the valves being provided as a valve actuated in multiple ways which can be controlled to open at least on the basis of two different note demands. In accordance with the invention, on a note demand on a valve actuated in multiple ways which is already open due to another note demand, the valve actuated in multiple ways is closed for an interruption time period and then opened again. The invention further relates to a method for the operation of a pipe organ, wherein information input at the console is transmitted via a data bus to remote receiver units which are connected to valves and/or stop pallets for their control, with the receiver units determining individually from the information transmitted whether, and if so, which of the valves and/or stop pallets connected to the respective receiver unit are to be opened or closed.

Abstract: A hollow tubular device to assist patients during speech therapy a main body portion of a tubular configuration having a hollow interior with an interior surface and having an exterior surface, the main body portion being formed of a plastic material; a pair of parallel end caps at each end of the main body portion, the end caps being circular in shape with a thickness essentially the same thickness as the side wall; and an centrally disposed aperture extending through each end cap.

Abstract: The valve member of a solenoid operated valve adapted to be mounted within the windchest of a pipe organ for opening and closing an aperture leading to a pipe is provided with a circular projection on one surface thereof adapted to project into the circular aperture with minimal clearance to reduce the amount of air flow through the aperture should the main portion of the valve member separate slightly from the seat surrounding the aperture as a result of bounce during a valve closing operation.