Antique Tools show grabs

[schor]

Twice a year there is an antique tools show that rolls into town. It's mostly woodworking related things but there are a few items I usually find for my metal work. Not always something I need, sometimes just something interesting. Here's what I got this time around.

I've been wanting a button indicator for a while now. I can't even find them new locally. This was the only one at the show. A federal .001, works great. $20


Next was a corner rounding end mill it's very good shape. $3



A couple starrett adjustable parallels. The guy wanted $12 and $10 for them, got them both for $15.


Next was a small oiler. These are great for getting some oil into an oil cup on a motor, oil buttons, and most oil ports. $5


I've been wanting a machinery's handbook for a long time and even wanted an older one, first because they are usually cheaper if they are not perfect condition and second, I like vintage machines. I hold it up and ask how much, the guy said $10, I didn't even bother bargaining.


Then I found this. I think it's a die set, I need to get it under a magnifier to see. It's numbered 1,2,3,4,5 and on the back is 70 punched in. Made in Germany. I had to have it for $5. Anyone know what it is for sure?

 

[dave2176]

Nice finds. I like the book. Why is the end mill threaded?
Dave

 

[rafe]

Good stuff, I have a few federals, I really like them

 

[LEEQ]

Nice finds! Love the handbook.

 

[12bolts]

Dave,
Some endmills are threaded to suit threaded collets. The collet is threaded for a small amount at the back end and still uses a split collet at the other end to grip tightly.
Once fairly common, not so much now, but you can still buy threaded endmills new

Cheers Phil

 

[george wilson]

The old die stock is just that: it is adjustable to change the thread diameters. In the 19th. C.,exact standardized thread diameters had not yet gotten firmly entrenched. Often a screw had to be adjusted in diameter to fit into a hole.

I have some old stuff like that laying around,but never need to use it. I do use old screw plates since I make missing parts for antique mechanical things. I can come up with a great variety of odd threads with them and my lathe. The real old screw plates are good because they make antique forms of threads. Some look like miniature ,deep light bulb(knuckle) threads. Completely rounded thread crests and roots. Like exaggerated Whitworth threads. Probably well suited to wrought iron threading. Indeed,these early screw threads crush the threads into place rather than cutting them. Cutting threads into wrought iron causes some of the threads to fall apart due to the layers of silicon inclusions in wrought iron.

Other early threads were like V type threads,but more flattened. As in more like 90 degree V's rather than 60 degree V's. There were no standards back then in thread forms either.