Unknown tooling, What is it?

Am in the process of slowly getting my Atlas TH54 in operation. When I bought it, it came with tubs of tooling & parts. Most of it I know about, some of it is unknown (to me..). Can anybody identify these items? What are they & what's thier purpose? I'd love to know!
Thanks!! Wes

#1- two identical threaded assemblies. Are 3.5" tall collapsed; threaded end extends ~2". Base is 1.68" dia & ID is tapered inwards. A leveler of sorts??
#2- One single piece. Has a kniurled shaft 1.0 dia x 2" long, drilled thru. At the end is a tapered "bell" (2" dia at opening) ID is taper bored, leaving about .12" wall.
#3- This assy has a bearing in the center, allowing the ends to spin freely. Seems to be a live center of some sort. Doesnt seem to match the headstock/chuck or tailstock in any way I can see (but then that's me..ha).
#4- This assy is homemade, some edges flamecut, some surfaces nicely milled. There is a pivot at one end allows the small plate to pivot up.

#1 are jacks, used to raise or level things things like machines or work, , or to support an overhanging workpiece on the mill, for instance.

#2 looks like a centering punch, used to mark the center of a piece of round stock

Hmmmmm,
#1- Machinists jacks as said by Awander
#2- HellifIknow or Common Tuit. (As in Get a round to it)

Bob

agreed about thr first 2 items. I have a few of those old centering punches. Seems like machinists used to use them,but not much today. They give only an approximate centering job at best,even if you hold them vertical to the shaft,they will be off an amount equal to the play between the sliding punch and the hole,and any lack of verticality in holding them. O.K. for rougher work where 3 or 4 thou is acceptable.

Those type jacks are mostly used in work on planers,where the thrust of the cutting tool is straight down. They won't stand any sideways thrust as in a vertical milling machine. Could be use in horizontal mills.

What ever #2 is I have one too. Thought it looked familiar, then ran across one in my scrap bin this morning.
No idea where mine came from.

Greg

It's called a "Bell Center Punch". Here is a page from South Bend's "How to Run a Lathe" that shows how to use one...



-Ron