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 > November 2013 > 2013.11.06 > 03Prev  Next


Strange Wire in Steamboat Pump Cradle
By John Phillips

Hello, everybody.  I have, I fervently hope, finished rebuilding the
steamboat pump out of my upright Steck Duo-Art.  The quarter-horsepower
electric motor that drives the pump has been given the 'OK' by a local
electrical firm, so I am ready to reinstall these items back into the
player, for a test run.

However, I decided to remove the two cradles that sit on the floor
of the piano, to de-rust the wood screws and to give the notches in the
cradles' tops some new bushing cloth.  These notches are where the
bottoms of the pump's two camshaft bearings fit.

The cradle at the bass end has an added feature; a piece of copper wire
that is attached to the iron frame of the piano and runs straight out
to the notch, passes through the notch and is secured by a wood screw to
the side of the cradle.  Is this an attempt to earth the iron frame to
the ironwork of the pump?  One would need to be confident of a good
contact between the wire and the bottom of the camshaft bearing.

In the case of my Steck this wouldn't have achieved much because the
240 volts 50 Hz supply comes into the piano via an ancient looking
length of figure-eight, two-core, plastic-coated flex.  There is no
earth lead.  I plan to rectify that in the very near future with
completely new three-core flex.

John Phillips - in Hobart, Tasmania


(Message sent Thu 7 Nov 2013, 00:05:35 GMT, from time zone GMT+1100.)

Key Words in Subject:  Cradle, Pump, Steamboat, Strange, Wire

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