Need ID on unknown discs

[NJ Marty]

Picked these up today and have no clue what they are, I have never come across anything like these. Any help is much appreciated.

 

[Lx460]

Muffler bearings?

 

[j p smith]

My first thought was some sort of hand crank food grinder, sausage grinder or processor, just not sure. Be sure and lets know when you find out.
Jeff

 

[txvwnut]

Flux capacitor parts.

Looks like some sort of vane pump or air motor components.

 

[Cypherian]

Look similar to air motor vane casing but very large , possibly some sort of impeller for fluids ?
Just a WAG...

Cypher

 

[Milton Shaw]

Look like air motor parts to me too. Where did you get them and can you get any history from the previous owners.

 

[NJ Marty]

Look like air motor parts to me too. Where did you get them and can you get any history from the previous owners.

I got them at a sale, there were a few cox airplanes upstairs. Don't know if these are for something like that or something totally different.