What sort of Chuck is this?

[will.mcray]

This is the second part I have from a lathe buy that I am trying to identify it’s use. I have never seen a Chuck like this with the jaws like they are with the curve and indention. Obviously to me is a cylindrical clamping style for lip type material (I’m guessing here).

Each jaw is numbered and stamped with 360 on it.

The other end is interesting. I have not measured it, it is a brass or bronze taper bushing. May be a MT 4 or 5 taper? How would something like this be mounted? A double taper arbor for the tail stock? Double taper for the spindle side?

Any help identifying this would be greatly appreciated.

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[Weldingrod1]

Egregious crashing plus possible modifying the outside to grip a disc?
Maybe it was set up to spin on a mandrel like a rotating chuck/center?

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[Cadillac]

Tailstock chuck driven/supported off live center.

 

[erikmannie]

Does that internal taper in the brass sleeve happen to match the taper in the spindle nose and/or tailstock of the lathe it came with?

In any case, if the lathe has a tapered spindle nose, one could make a mandrel that goes in the spindle nose on one end & the brass sleeve on the other end. With a good fit you could drive the chuck for light work. This probably isn’t going on in your case, but this method could be used for “putting a small chuck on a big lathe”; this would be safer than clamping a small chuck in a big chuck.

 

[Suzuki4evr]

This is the second part I have from a lathe buy that I am trying to identify it’s use. I have never seen a Chuck like this with the jaws like they are with the curve and indention. Obviously to me is a cylindrical clamping style for lip type material (I’m guessing here).

Each jaw is numbered and stamped with 360 on it.

The other end is interesting. I have not measured it, it is a brass or bronze taper bushing. May be a MT 4 or 5 taper? How would something like this be mounted? A double taper arbor for the tail stock? Double taper for the spindle side?

Any help identifying this would be greatly appreciated.

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A very old one???

 

[will.mcray]

Thanks for the constructive feedback. Back in the day they had to be creative. These are some good comments.


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[Illinoyance]

My best description of that chuck is: butchered.