There two racks of pistons. At the extreme right you can just see the roll frame and governor
behind. The roll frame is hung under the keyboard. The 'Pistonola' 88-note piano was built
in 1973 when I had access to a lathe on board ship. It's a project I would never do again!
I have a 'Pistonola' of my own design. When I bought my piano it was not a player, so to do something different (I had heard of the Pistonola) I made my own, using two racks, each one offset .
The pistons are 1-1/2" diameter brass and have "O" rings for the seals. The pistons are Delrin. 20" water gage suction gives approximately 3.2 pounds force. I am thinking of featuring this in the AMICA magazine if they so desire, plus my perforator.
26 Feb 2000 14:40:15 -0800