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 > March 2004 > 2004.03.08 > 05Prev  Next


Quality of Pneumatic Cloth & Hoses
By Tim Gautreaux

I recently dismantled a Standard Player action I had repaired in 1970.
The gray cloth was still good on the pneumatics, though slightly stiff.

Coincidentally I recently used a piece of cloth manufactured in 1990
(natural black rubber over cotton) to recover a hammer rail pneumatic
and discovered that the pneumatic would not hold a vacuum well at all.
I removed the cloth and found that it was full of pin holes, many
pinholes.  I recovered it with old gray cloth and it held fine.  (Next
month I'll put new cloth on it, when the material comes in the mail.)

I guess it's been said before, but pneumatic cloth varies from shipment
to shipment; age and sometimes even manufacturer have little to do with
quality since the stuff is made in such small batches and the formulas
vary and techniques of manufacturing vary as well.  The best you can do
is hold a new batch up to a bright light and if enough pin holes show
up, send it back.  As of this writing I'd trust the dull gray cloth
pretty well.

As for tubing, the 1970 job was a Welte with several different types
in it.  The clear tubing was rock hard, the gray split at the nipples
and hardened wherever oil had touched it.  Some of the thin black
tubing had collapsed at tight bends and the standard black neoprene
was tubing in good shape.

Tim Gautreaux
Hammond, Louisiana


(Message sent Mon 8 Mar 2004, 17:46:31 GMT, from time zone GMT-0600.)

Key Words in Subject:  Cloth, Hoses, Pneumatic, Quality

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