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 > January 2006 > 2006.01.26 > 04Prev  Next


Converting Vacuum Pump to Pressure Pump
By Brian Thornton

Carl,  If the kind of vacuum pump you are speaking of is a suction
box type that is normally used to electrify player pianos, I would
strongly advise against it.  The main problem is that the exhaust from
the impeller, which would be your pressure port, is passed through
the motor armature.  This is intended as a cooling measure.  The air
pressure that is produced has a good deal of heat which can be damaging
to pipes and chests.

I have a RAM orchestrion conversion that I am reconditioning for
a client.  It has an accordion that was running off the exhaust end of
the suction box.  The heat from that hot air melted the wax which holds
the accordion reeds on -- a veritable mess.

The blower unit that PPCo has available does not pass the air pressure
though the motor, which eliminates this problem, and it can be run on
a rheostat.

Brian Thornton - Short Mountain Music Works
Woodbury, Tennessee, USA
http://www.shortmountainmusic.com/


(Message sent Thu 26 Jan 2006, 18:08:54 GMT, from time zone GMT-0600.)

Key Words in Subject:  Converting, Pressure, Pump, Vacuum

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