hosted on condor3913
 Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info

End-of-Summer Fundraising Drive In Progress. Please visit our home page to see this and other announcements: https://www.mmdigest.com     Thank you. --Jody

MMD > Archives > September 2001 > 2001.09.28 > 05Prev  Next


Player Piano Tracking Mechanisms
By Bryant Stott

The tracker on my 1912 Henry F. Miller piano with the Miller player
action uses one finger on the left side.  Both the upper and lower
spools are moved to the left by a pneumatic until the left edge
contacts the finger.  As long as the left edge of the roll is in good
shape, it will follow the roll no matter how warped it may be.

Since both spools are driven left and right, there is no buckling of
the roll even during wide movements of the tracker system.  I have one
roll in particular that moves the tracker to just about the end of its
travel at the end of the roll, but the roll plays just fine.

The only problem I have encountered is with a roll that has not been
cut properly.  The holes remain uniformly un-centered for the duration
of the roll.  This has never happened on a vintage roll, just new ones
that had not been perforated correctly.  A replacement roll cured this
problem in all instances where it has happened.

The spring tension on the finger that feels the left edge of the roll
is so light that it will properly track rolls with a soft edge without
causing any new damage.  I have had this piano since 1969 and have not
noticed any edge deterioration on any of my rolls (other than that
which was originally present) from this tracking system.  I like the
idea of moving both the upper and lower spools instead of just the
upper spool.

Bryant S. Stott


(Message sent Thu 27 Sep 2001, 23:05:59 GMT, from time zone GMT-0400.)

Key Words in Subject:  Mechanisms, Piano, Player, Tracking

Home    Archives    Calendar    Gallery    Store    Links    Info   


Enter text below to search the MMD Website with Google



CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2022 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Pay via PayPal

No PayPal account required

                                     
Translate This Page