My Unusual Tool

So an Engineer I use in the area is retiring... >>

He gave me a box of Coventry heads and this tool was part of the collection. >>

When the head is pulled up it makes a 1/4 turn then locks but there is a little bit of play of 1/4 inch so not a precision tool.>>

There is a spline on the back of the shaft and a dovetail spline in the head with a locking screw. >>

I could go back to him and ask but then I would have to face the smug, lording it up which I suffer whenever I go and see him with a job which my modest machines cannot handle. >>

Any help will be appreciated.

I have finally figured out how to create an album on this site.... sorry for being slow. pictures below

Sorry I can't answer your question but nice title!

Tony

It looks like a toolholder that plugs into a turret lathe turret. (guessing)

Edited By Ady1 on 15/08/2016 10:07:06

Thanks for the quick responses everyone.

John, this would fit in with it being in a box of Coventry heads. Thanks for the tip, I shall go and see if this will fit any of my machines…. That rear shaft is 1 ½ inches which is not something my Chip Master can accommodate

Dan

The rear edge of the big end has taken a beating... loosening and extraction issues?

It's clearly keywayed on the exterior and interior to prevent twisting so i'm gonna guess it's a tap/die holder of sorts, could even be the sliding head of a die holder. The back shoulder has clearly taken a clobbering as Ady1 said, probably to take it out after it got stuck in it's holder.

Michael W

I would like to refer Ady1 to Tony Pratts message! >>

Made me laugh which is nice as I’m normally bitter and twisted.>>

The more I look, I think John has it. Unfortunately it’s not going to fit anything I have. >>

My unusual tool with a battered big end it going to be looking for a new home.

>Dan>

It looks like a floating reamer holder for a capstan lathe but with dowel pins it obviously can't be, the key way stops whatever twisting, so at a guess perhaps it held a broach to produce a square or hexagon shape in a stationary component.

If you do want to use it, why not make an adaptor to carry it, with a suitable taper to fit the Tailstock mandrel?

Or even more radical, mount it in a 4 Jaw , clock it for the shank to run true, and then reduce the diameter to something that your lathe can accept?

Howard

Hi Howard,

I understand where you're coming from on that as I have a few projects that are waiting in the wings... Taper attachment from a jones and brown to fit onto my chipmaster, DRO's adding to my chipmaster and Beaver, a slotting attachment from a bridge port adding to the Beaver... I will add it to my box of things to do when I have 5 mins

I always kick myself when I get rid of something and then months later finding that I need just something like it.

Dan