The Talking Machine Forum — For All Antique Phonographs & Recordings

It is currently Tue Oct 23, 2018 2:16 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 8 posts ] 
Author Message
 Post subject: Help needed to flatten a cast Victor turntable. Possible???
PostPosted: Mon Aug 27, 2018 10:04 am 
Offline
Victor Monarch Special
Stop for a visit when in Oregon.
Joined: Tue Feb 10, 2009 12:25 pm
Posts: 5692
Location: Albany, Oregon
I have a cast iron 10" Victor turntable that is warped. It is not a spindle problem. Is it possible to correct a warped cast iron turntable?

Thanks, Jerry Blais


Top
 Profile  
 
 Post subject: Re: Help needed to flatten a cast Victor turntable. Possibl
PostPosted: Mon Aug 27, 2018 10:09 am 
Offline
Auxetophone
User avatar
TMF Administrator
Joined: Wed Jan 14, 2009 6:01 am
Posts: 2465
Location: Ferndale, MI
I would imagine the process would involve heating the turntable and hammering it until it is flat. As you know, cast iron is brittle when cold, so it would likely crack with force! Time to break out the blacksmith apron and arm muscles!
Brandon


Top
 Profile  
 
 Post subject: Re: Help needed to flatten a cast Victor turntable. Possibl
PostPosted: Mon Aug 27, 2018 10:54 am 
Offline
Victor VI
I have good days...this might not be one of them
Joined: Wed Jan 07, 2009 5:23 pm
Posts: 3847
Location: Albany NY
You can't heat cast iron and hammer it. It has two states- solid and liquid, there is no between.


Top
 Profile  
 
 Post subject: Re: Help needed to flatten a cast Victor turntable. Possibl
PostPosted: Mon Aug 27, 2018 11:07 am 
Offline
Auxetophone
User avatar
TMF Administrator
Joined: Wed Jan 14, 2009 6:01 am
Posts: 2465
Location: Ferndale, MI
You’re right, it was wrought iron I was thinking of.

I just asked my dad who used to be a metal worker, and he said it can be straightened by clamping it to a firebrick, heating to red hot, tightening the clamps, and allowing it to cool.
Brandon


Top
 Profile  
 
 Post subject: Re: Help needed to flatten a cast Victor turntable. Possibl
PostPosted: Mon Aug 27, 2018 11:25 am 
Offline
Victor III
Joined: Thu Sep 25, 2014 4:25 pm
Posts: 606
Location: North Central Iowa
There's a guy in Hudson, Wisconsin that might be able to help you. https://www.castmetalwelding.com/ is a link to his website. He is REALLY good and specializes in restoring pre WWI Buick engines of all things. He has a couple of large ovens and might be able to help you with that thing. I've had him do some repair work on my coal stove, and a few other things and he really is good. Does a lot of manifold repair on antique cars as well. Good luck with that thing. Must be some internal tension in that thing.


Top
 Profile  
 
 Post subject: Re: Help needed to flatten a cast Victor turntable. Possibl
PostPosted: Mon Aug 27, 2018 2:13 pm 
Offline
Victor VI
I have good days...this might not be one of them
Joined: Wed Jan 07, 2009 5:23 pm
Posts: 3847
Location: Albany NY
HisMastersVoice wrote:
You’re right, it was wrought iron I was thinking of.

I just asked my dad who used to be a metal worker, and he said it can be straightened by clamping it to a firebrick, heating to red hot, tightening the clamps, and allowing it to cool.


It would seem easier to have a new turntable made


Top
 Profile  
 
 Post subject: Re: Help needed to flatten a cast Victor turntable. Possibl
PostPosted: Mon Sep 03, 2018 8:24 pm 
Offline
Victor IV
Joined: Mon Aug 24, 2009 3:08 pm
Posts: 1939
Location: Harrison Township, MI
Just how warped is it??? Is it possible to coat the felt side, (with felt removed of course), with Bondo, or some similar product, then dress it back to create a flat surface, that is also perpendicular to the spindle? Covering the build-up with felt would hide the modification.

OR,

Place the felt side on a machine table and bore, (not drill), the spindle hole much larger, then press fit an insert in the enlarged hole and re-machine to properly fit the spindle shaft. This would create a spindle hole that is perpendicular to the felt side of the turntable, even if the turntable face itself is a bit out-of-flat.


Top
 Profile  
 
 Post subject: Re: Help needed to flatten a cast Victor turntable. Possibl
PostPosted: Mon Sep 03, 2018 8:52 pm 
Offline
Victor VI
User avatar
Needle Tins are Addictive
Joined: Fri Jul 09, 2010 8:32 pm
Posts: 3556
Location: Belmont, North Carolina
If it is not too warped, the important side is the top. Remove the felt and place it top side down on a belt sander, rotate it several directions until it gets flat... I did this on a Columbia Q motor board that was slightly distorted and had odd pitting that was visually distracting. Once I got it flat, I polished it back to an almost nickel plated look, which won't be necessary for your turntable...

Otherwise, if you know a machinist, you could place an appropriate sized bolt in the spindle hole with a nut on both sides to hold it securely, place it in a lathe and straighten it out that way (it would also work to chuck it into a drill press, if you don't have a lathe).

I would be very leery about heating it to straighten it, because of the inherent problems with cast iron. Old cast iron of that period, probably had a different formula than modern cast iron. The results may or may not be good, as it is brittle and prone to warpage. Beside that problem, finding someone who is experienced enough with antique cast iron to trust for a repair may be few and far between.
"The phonograph† is not of any commercial value."
Thomas Alva Edison - Comment to his assistant, Samuel Insull.

"No one needs a Victrola XX, a Perfected Graphophone Type G, or whatever you call those noisy things."
My Wife


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Americanized by Maël Soucaze.