Mystery items

[Pete O]

As I may have mentioned in another thread or three, I picked up a swag of bits and pieces at a clearing sale this week. I had to bid on a couple of shelves full of assorted junk in order to get the mill cutters that I was after, so I have been sorting through said junk and separating it into things to keep, things to go on eBay and things to chuck in the scrap bin. So far there is nearly a full wheelbarrow of scrap metal however some useful stuff too (wife's opinion notwithstanding).
I was about to chuck these couple of things in the scrap pile when it occurred to me that I may have seen them somewhere before but I am blowed if I can figure out where or what they are. Don't want to bin them if they might be of use to someone so I'm wondering if anyone here can identify them. The 8" shifter is for scale (yes I know what an 8" shifter is).

   

I think I know what this one is- an adjustable reamer, no? Can anyone tell me how to set it up?
   
   

Also came across this tailstock turret, it looks the same as the LF Sparrey design; were these made commercially or would it be a shop-made tool?
   
   
Nice little gadget but a bit small for my lathe so off to the bay with it.


Also the second-smallest QCTP I have ever seen, with two parting tool holders. It has been set up on a shop-made bracket to mount in a larger toolpost.
       
Only wish it was about 6 times the size.

[Hopefuldave]

Cute toolpost :)
I'll pass on the turret, it does look like Sparrey's but no idea whether they were ever made commercially!

The reamer either adjusts with the collar (pushing the blades along "ramped" slots to increase the diameter) or is fixed with inserted blades - first thing is to clean, dismantle, lubricate and reassemble, see whether the slots are parallel or ramped?

The bolts and tees are probably production stops to fit to a machine to limit travel, bolt them to the carriage / table or whatever and adjust the through-stud and locknut so when you're to the required dimension they hit something (e.g. bolt them to the lathe saddle, where the cross-slide (or a block attached to it) will run up against them when turning an outside diameter or boring inside) - useful when you have multiple identical parts to make, or to set up so the apprentice can make 'em without requiring skills ;) Often they bolt to a T-nut in a T-slot, along the front of a mill table's a common sight.

HTH,
Dave H. (the other one)

[Pete O]

Thanks Dave,I will dismantle the reamer when I get the chance and see how it works.
The three bits in the first photo will go in the scrap pile I think; I was sure I'd seen the double-semicircle piece somewhere in my travels but can't place it. No doubt I'll need one a week after I chuck it.

[Hopefuldave]

I'd keep the stops, never know when you'll want 'em - they do make repetitive work a lot quicker, once you've set them up on the first part you don't have to watch dials, just crank the handles until you hit the stop - I refine it a bit with spacer blocks for stepped cuts, piece of shim for the last-but-one cut - whip it out (ooer Mrs) and set speed and feed for the finish cut. On the carriage feed I have a gauge tray and micrometer stop, same/similar procedure, makes my life in my hobby workshop easier and a lot more productive!

Dave H. (the other one)

[hermetic]

that double semicircle thing looks like a chuck guard from a drill press, with no perspex...............................

[Roadracer_Al]

The semi-circular items may be a device for setting jointer blades on a woodworking jointer.

[krv3000]

hi the tool post is a Emco its off a Emco 5