The Talking Machine Forum — For All Antique Phonographs & Recordings

It is currently Sat Oct 19, 2019 10:45 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 12 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Loose Columbia fiber gear
PostPosted: Sun Sep 15, 2019 3:33 pm 
Offline
Victor III
Joined: Tue Jun 24, 2014 10:12 pm
Posts: 819
I'd like to glue a Columbia fiber gear in place as it is loose enough to rotate freely. I could use epoxy, but that would be permanent. I'd rather use something reversible. Does any one have any suggestions?


Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Sun Sep 15, 2019 6:46 pm 
Offline
Victor V
Joined: Mon Aug 24, 2009 3:08 pm
Posts: 2246
Location: Harrison Township, MI
jboger wrote:
I'd like to glue a Columbia fiber gear in place as it is loose enough to rotate freely. I could use epoxy, but that would be permanent. I'd rather use something reversible. Does any one have any suggestions?


Don't you want it to be permanent?

Besides, it's not as permanent as your think. Heat will will melt the epoxy away. Yes, it will also destroy the fiber gear, but you'd only want to remove it if the gear were no good anyway.


Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Sun Sep 15, 2019 7:23 pm 
Offline
Victor III
Joined: Tue Jun 24, 2014 10:12 pm
Posts: 819
Jerry, if there's a choice, then no. I always prefer the option to undo what I've done. But your comment has triggered a memory. I once used a paint remover that also dissolved an epoxy that someone had used long before I had the item. It took a while, but it did it. But if no one has a suggestion, I will try water-soluble white glue first and hold off on the epoxy. I know nothing about gorilla glue and other products on the market. I will also try hide glue.


Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Sun Sep 15, 2019 8:00 pm 
Offline
Victor IV
I've got both kinds of music--classical & rag-time.
Joined: Fri Oct 06, 2017 11:39 am
Posts: 1256
Location: South Carolina
On degreased surfaces, burnt shellac gets very sticky and might give enough. You don't want it to cut loose, though--a "run" on the governor could tear up some of the mainspring gears.

Would replacing it with a new gear from Mr. Sitko or Vollema work?


Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Sun Sep 15, 2019 9:38 pm 
Offline
Victor III
Joined: Tue Jun 24, 2014 10:12 pm
Posts: 819
Shellac is an excellent idea. I have some shellac flakes that I can dissolve in a small amount of ethanol, which I could then use as a cement.

Ron supplies excellent replacements gears, but this is for an early two-spring motor from a front-mount AH. A new one from Ron might work, but then again it might not. I like the idea of shellac and shall try that.

Thanks.


Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Mon Sep 16, 2019 12:12 am 
Offline
Victor IV
I've got both kinds of music--classical & rag-time.
Joined: Fri Oct 06, 2017 11:39 am
Posts: 1256
Location: South Carolina
One thing I did re-gluing the stylus bar onto a 1904 Edison recorder was to "stick" it on there with a dot of brown shellac and then set that on fire. I blew out the flame a second later. It cooked out the solvent, making it most prodigiously sticky, and it seemed to work nicely enough.

A front-mount AH can be a nice little machine! It's valuable enough for a new gear. Hopefully Mr. Sitko has them fresh if shellac doesn't work.


Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Mon Sep 16, 2019 8:53 am 
Offline
Victor Monarch Special
Stop for a visit when in Oregon.
Joined: Tue Feb 10, 2009 12:25 pm
Posts: 6449
Location: Albany, Oregon
I've used a modern fibre gear replacement with good results. What are the risks of gluing an old gear and having a sudden failure? Jerry B.


Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Mon Sep 16, 2019 5:32 pm 
Offline
Victor VI
Joined: Tue Mar 23, 2010 7:00 pm
Posts: 3699
Location: Western, WA State
What kind of a Columbia AH do you have? There are about 3 or 4 types of motors. If this is the very early one with the off center crank, the fiber gear will be very hard to find. I don't know of any reproductions. If this is the more common motor with the horizontal governor and center crank, then a Sitko replacement will be perfect for what you want. Once I get further information of the motor, I can tell you how to do the repair. If you can show a picture, that will make it easy.
Harvey Kravitz


Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Mon Sep 16, 2019 7:22 pm 
Offline
Victor III
Joined: Tue Jun 24, 2014 10:12 pm
Posts: 819
Just want to attach this fiber gear to the beveled wheel. I don't mind to save $25 for a new gear. I bought one from Ron before. Ron sells a great product. The fiber gear you see in the picture is a replacement; it works. I just need to attach it so it is structurally strong. Harvey, if you have a suggestion, something you've done before that's reversible, I'm all ears. If not, I can try shellac, epoxy, or even break down and buy a new fiber gear. I do worry that a new fiber gear might not work on this particular beveled gear. I have reasons to think that, but that's a different matter.


Attachments:
DSCF2577.jpg
DSCF2577.jpg [ 146.46 KiB | Viewed 193 times ]
Top
 Profile  
 
 Post subject: Re: Loose Columbia fiber gear
PostPosted: Mon Sep 16, 2019 7:30 pm 
Offline
Victor III
Joined: Tue Jun 24, 2014 10:12 pm
Posts: 819
I have three types of front-mount AH's: (1) the earliest with an off-center crank hole; (2) the second type with a centrally-place crank; and now a third one (3) with the more common motor that one sees on many early Columbia client machines as well as Columbia-labelled machines. This one has a two-spring motor. I just got it over the weekend at an auction that was clearing out a house. It came with an early reproducer, the one with the screw that tightens down on the needle. I have two of these now; this is the much better one.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 posts ]  Go to page 1, 2  Next

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.