Identify tool II

[Don Dahlberg]

Here is a second tool at the NAWCC Museum that we cannot identify. The small piece with all the grooves is a dovetail slide. The large top is also a dovetail slide left and right on the bottom piece. What is it?





Don Dahlberg
NAWCC volunteer

 

[sharukh]

This is a shot in the dark.

Could it be a type of a cross slide with the grooves giving a back and forth movement (by a rack and pinion mechanism) of the whole piece while the knurled knob could be used to limit the actual movement ? The triangular tab might limit the amount of movement possible using the rack and pinion ? Somewhat like setting up a depth of cut using the knurled knob and then using the rack and pinion for repetitive but equal actions ? Would be useful in a gear cutting or topping tool.

Sharukh

 

[gmorse]

Hi Don,

Have you looked in Crom?

Regards,

Graham

 

[Charlie O.]

I've read a description somewhere, but have don't recall where. One of Ted Corm's book would be my first guess.

The small slide faces a lathe spindle. The large knob under it adjusts the height. A part, perhaps a jewel being drilled, is shellacked to the face of the slide. The notches let you advance or withdraw the slide with a finger.

 

[Charlie O.]

c

I've read a description somewhere, but have don't recall where. One of Ted Corm's book would be my first guess.

The small slide faces a lathe spindle. The large knob under it adjusts the height. A part, perhaps a jewel being drilled, is shellacked to the face of the slide. The notches let you advance or withdraw the slide with a finger.

That's Crom....

 

[Charlie O.]

There is a picture of the sort of lathe this was used on in an earlier thread:

Early Continental Jeweling lathe.
Discussion in 'Horological Tools' started by Ralph, Oct 21, 2015.

 

[Firegriff]

How do I look up Ted Corm is it a referance book or a web site all i get is mostly how to cook Corm?

 

[gmorse]

Hi Firegriff,

How do I look up Ted Corm is it a referance book or a web site

It's a series of books on horological tools and machines by Theodore 'Ted' Crom, which are now very expensive, (even if you disregard the ridiculous amounts charged by some US booksellers)!

Have a look on bookfinders.com.

Regards,

Graham

 

[Firegriff]

Hi Firegriff,



It's a series of books on horological tools and machines by Theodore 'Ted' Crom, which are now very expensive, (even if you disregard the ridiculous amounts charged by some US booksellers)!

Have a look on bookfinders.com.

Regards,

Graham

I found one $713.00 is pretty steep.

 

[topspy]

Does the NAWCC library not have a copy of Crom's books? That would be a huge surprise.

 

[BLKBEARD]

Hi Firegriff,



It's a series of books on horological tools and machines by Theodore 'Ted' Crom, which are now very expensive, (even if you disregard the ridiculous amounts charged by some US booksellers)!

Have a look on bookfinders.com.

Regards,

Graham

 

[BLKBEARD]

Easy there Graham.

Are you saying there are no price gougers on your side of the pond??

 

[gmorse]

Hi Blkbeard,

Of course there are, but they don't seem to be quite so ambitious!

Regards,

Graham