Metal wind instrument e.g. trumpet, has device operable with printing unit for simultaneous shifting of both change-over valves for connecting mouth pipe and sonic unit with rotary valve

摘要

The instrument has a change-over valve (8) provided between a sonic unit and a rotary valve of a valve engine, so that the valve (8) connects the sonic unit with an opening of the rotary valve of the valve engine either in a radial level or in another radial level. A device is operable with a printing unit for simultaneous shifting of both change-over valves for connecting mouth pipe (1) and the sonic unit with the rotary valve.