Technical "The Perfect Valve Lathe"

I was reading "Squirrels" thread on "old school" valve resurfacing, and remembered this tool I acquired from my Dads collection when he p***ed.

Has anybody ever seen one? It's called: "The Perfect Valve Lathe", Pat'd May 11 1920...

 

what spins the valve?

 

probably a separate portable drill?

 

That's what I would ***ume...

The thing is, where the valve clamps in the tool, would damage the stem if you spun it.

 

Maybe an electric motor and a belt, with a pulley, adapter and collets on the valve end?

 

Looks to be all hand operated.Is there a stone the handle spins?

 

I'm guessing there may have been a sleeve that you insert the valvestem into and clamp that into the fixture.
There's an adjustable stop for the valve face, but there would have to also be a way to keep the valve from creeping in other direction and changing your cut depth.
Cool piece, none the less. Interesting to see some of the earlier tools.
Thanks for posting that up.

 

looks to me like the handle adjusts to the valve size ,the bolt on the left adjusts where the valve sets, the bolt on the right holds the valve in place. I think it should have a little hand crank that would clamp on the valve stem to rotate it.

I've a miniature version of that. I'll go and dig it out and post a pic.

 

Old school Valve job machines

 

I'm thinking it took a little old school knack to get nice results.

 

The front screw put the pressure against the carbide cutting block and the other screw put a light load on the valve stem. You can cut the valve by hand if you want but cordless drill works faster

 

there you go....

Thanks for the pics of all these neat old tools! gets me thinking

 

I love it....

 

I now see that I am missing a couple of parts. Thanks for posting that picture.