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Re: Could someone identify this phonograph?
Posted: Fri Feb 26, 2016 7:23 pm
by Panatropia
US PHONO wrote:Panatropia wrote:This would be a fairly straightforward restoration with primarily lathe work.
No!
Have a look at the reproducer it is static..........which means, the missing pieces are quite complicated pieces of engineering, containing feed-screw and a bunch of other technology to move the mandrel appropriately. There are a few other bits missing as well so brave is the person who buys this in the hope of getting it working. There is a lot of work to do, and very few people with one and probably zero who will want to risk to disassemble their piece so someone can replicate it.
with respect by no means. Static reproducer, moving mandrel riding on a cased thread. It's fairly simple for me as I'm a Horologist and accustomed to complex machine work. Gear cutting, fusee turning and thread cutting. The more complex the problem, the more I love it.
Re: Could someone identify this phonograph?
Posted: Fri Feb 26, 2016 11:17 pm
by NEFaurora
Leave it to Fabrizio to have a pic of it...lol..
It looks like it utilizes an Edison Glass/Mica Automatic reproducer..
)
Tony K.
Edison Collector/Restorer
Re: Could someone identify this phonograph?
Posted: Sun Feb 28, 2016 7:38 pm
by Panatropia
Better pics...
Re: Could someone identify this phonograph?
Posted: Sun Feb 28, 2016 7:47 pm
by Panatropia
Here's more.
Re: Could someone identify this phonograph?
Posted: Sun Feb 28, 2016 8:16 pm
by Edisone
I still can't understand how that mandrel spins and travels at the same time. Obviously it does, but it's also kind of odd that such engineering is run by hand power!
Re: Could someone identify this phonograph?
Posted: Sun Feb 28, 2016 8:27 pm
by Panatropia
Edisone wrote:I still can't understand how that mandrel spins and travels at the same time. Obviously it does, but it's also kind of odd that such engineering is run by hand power!
Planetary gearing inside the mandrel. The large pulley spins one way, the rotating shaft of which is inside a fixed steel tube with a slot in it. Possibly a sliding gear in a keyway which communicates with the planetary gears in the mandrel. Obviously there is a thread rider inside as well. Likely on one side of the fixed outer tube. Look closely at the images of the mandrel and you can see the planetary release mechanism and what I perceive as part of the thread rider.
Re: Could someone identify this phonograph?
Posted: Sun Feb 28, 2016 8:30 pm
by Panatropia
Re: Could someone identify this phonograph?
Posted: Sun Feb 28, 2016 9:05 pm
by cmshapiro
Is this one person or museum's collection?
Amazing none the less!