Improvements in Organ Controlling Devices for Combined Mechanical Pianoforte Players and Organs.

摘要

23,777. Rowley, J. April 26, 1912. Piano-players; wind instruments.-In an organ combined with a piano-player, the swellshutter is adjusted by a screwdevice mounted adjacent to the control - board of the player. A screw C is mounted in a bracket D on the trackerbox, and is connected by a bell-crank A, link G, cranked spindle H, and link J to the swell - shutter K. According to the direction of rotation of the screw C, the swell-shutter K is opened or closed to vary the loudness of the sound produced by the organ.