Device for automatic correction of tube length of brass wind instrument, has valve tuning slides with adjustable pipe sections whose length is changed upon operation of valves for actuating main pipe

摘要

The device (1) has main pipe (16), valve tuning slides with adjustable pipe sections (13), and valves (2a-2c) for actuating main pipe. A transmission mechanism is mounted on the brass wind instrument. The length of adjustable pipe sections is changed upon the operation of valves, respectively.