Need help identifying homemade tool

[yesindeed]

A few years ago, the house across from me sold to new owners when the old widow living in it finally died. Her husband was a machinist who died in 1974, and the basement was full of various tooling, as well as a Clausing model 6339 lathe. I got the lathe and hundreds of pounds of tooling , for the lathe, and a long gone Bridgeport. I had all the tooling in 5 gallon buckets and plastic bins in the basement and didnt get a chance to really get into it. Now i need the space so i want to go through it and organize it. If i am stumped about what something is, I will post various photos and see if brothers could help out.
Here is some of the random tooling, and the last photos are of something i cant figure out.



This is the thing i cant figure out:

[yesindeed]

Some more of the tool

[propanehotrod]

Looks like its probably a radius tool for cutting spherical shapes on a lathe. The cutting tool would go in the small square hole. As you turn the crank the tool moves in an arc

[propanehotrod]

something like this
http://www.micromark.com/RS/SR/Product/84833_R.jpg

[yesindeed]

Here is the Clausing I got,but never reassembled after taking it apart a bit to get it out of the basement. My Logan 200 does all i need, so i never got around to messing with it.

[yesindeed]

Can anyone advise what this is? It was on the pile of crap that i picked up. I thought it was a welding spoon, but it is an odd shape, and i dont think the guy welded anything.

[xryan]

Copper, I'd guess probably for scraping the ways clean?