Mistery tool

[EricB]

This fixture came from the bench of a clock maker friend who passed last year. The NAWCC folks couldn't figure it out so maybe it was something he used in his machine shop. It's made from brass and aluminum with a steel guide pin.



Any ideas?

Eric

 

[m1kemex]

The screw is half right threaded and half left threaded. This is some sort of clamp (the jaws will close up as you turn the knob).

The mysterious part is the shape of the jaws. I have no idea on that.

 

[ChazzC]

I’ll show the photos to my local Clock Maker and see what he says (probably next week - he only accepts visitors every other week, otherwise he can’t catch up on his backlog).

 

[markba633csi]

Maybe not for wristwatches but instead, larger clocks? Perhaps a spanner of some kind, or fixture
Or possibly cuckoo clocks, for setting the precise azimuth angle of the little bird that pops out?

 

[francist]

I'm looking at the two dots for lack of a better word on the top of the threaded blocks. Are they punch divots or oil holes for the thread? If they're punch divots that says to me the device needed to be set for a critical distance or could be used to measure a critical distance -- one could use the divots for pair of calipers or dividers for a specific centre to centre.

What that distance might be though I don't know, the shape of those blocks is pretty specific. Maybe to reach around a particular pair of plates or something, don't know. I've made some pretty weird shaped holders for mounting a clockworks on the timing stand but that's not exactly the same thing.

On the other hand, the divots might be completely irrelevant and just be left over from when he centre-popped the locations for the threaded holes on the wrong faces of the blocks. Not that that ever happened before....

 

[toprecyler]

It looks like to me it could be some custom made vice / clamping tool. I have no idea what it was actually made to do, but could end up being useful for something.


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