1. Pedal.
2. Pedal connection.
3. Exhauster (one only shown).
4. Reservoir; high tension (low-tension reservoir not shown.)
5. Exhaust trunk.
6. Exhaust tube to motor.
7. Air space above primary valves.
8. Secondary valves.
9. Striking pneumatic.
10. Connection from pneumatic to action of piano.
11. Piano action.
12. Pneumatic motor.
13. Trackerboard (music roll passes over trackerboard).
概要
解説Pneumatic piano.png
Sectional illustration of player piano interior action
日付
原典
Regulation and Repair of Piano and Player Mechanism together with Tuning as Science and Art
{{Information |Description=Sectional illustration of player piano interior action |Source=Regulation and Repair of Piano and Player Mechanism together with Tuning as Science and Art |Date=1909 |Author=William Braid White |Permission=Copyright 1909 by Edwa