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
MMD > Archives > October 1999 > 1999.10.23 > 10Prev  Next


Pressure vs. Suction Player Systems
By Andrew Barrett

Hello.  There has been some talk going around about player pipe organs.
I have two things to contribute.  First, I read a book on the organ
that showed different pipe organ actions and included some drawings
of pipe organ actions.

There were two of note: the vacuum action, and the pressure action.
Because they worked the same as the vacuum and pressure band organ
valves (the only difference being valves at the back ends of the
keyboard opened the tubing) I wondered why someone didn't split the
tubing and insert T's, and hook shorter lengths of tubing from there
to the tracker bar.  Has anyone ever tried this?

Second, I've read in the Encyclopedia of Automatic Musical Instruments
about certain models of Aeolian Orchestrelle using pressure and a roll
box.  I've never heard of a reed organ using pressure!

Hope to hear from you soon,

Andrew Barrett

 [ A vacuum system is convenient for music rolls because the paper
 [ is sucked into contact with the tracker bar.  Some cardboard book
 [ systems operate with pressure, but a grooved roller is usually
 [ needed to keep the music in contact with the tracker bar.  Putting
 [ the tracker bar inside a pressurized box is a solution, but it's
 [ inconvenient...  -- Robbie


(Message sent Sat 23 Oct 1999, 23:34:26 GMT, from time zone GMT-0700.)

Key Words in Subject:  Player, Pressure, Suction, Systems, vs

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 1995-2024 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

Please Support Publication of the MMD with your Generous Donation

Pay via PayPal

No PayPal account required

                                     
Translate This Page