Music Roll Tracking Systems
By Don Teach
Our store used to sell player pianos. At one time the only player
piano available was the Aeolian-made "Ivers and Pond", "Hardman",
"Duo-Art", etc. which were all basically the same player piano. The
QRS catalog featured long playing rolls that would tear up on rewind.
I solved that problem by altering the take up spool. I used to take
the flanges off and cut the take up spool on a table saw. This cut was
just a little so I could move the flanges closer together. The paper
tended to crawl left to right on the take up spool while the roll
played. On rewind this would cause a roll to tear.
I also made on occasion a different valve block so that the tracker
system would have no valves but only bleeds. This was patterned to
work like the Ampico and Duo-Art systems. They tend to move the roll
more smoothly. The above are just food for thought.
(Message sent Tue 27 Feb 2001, 15:06:14 GMT, from time zone GMT-0600.)