Well I started sorting out some bits from my lathe today and came across this part and a lead screw document.
I didn’t think my lathe was screw feed, but maybe it was at some point, do you think this is something to do with it??
This is the lathe, it looks like this part may fit in the groove on the front of the bed, or the same on the back? but I see no way how it would join into the ‘system’ so to speak
I have no idea.
It is interesting to me though.
I might recommend this website.
http://vintagemachinery.org
I’d imagine you could tap into a larger knowledge base there.
Is your lathe a true metal lathe?
Maybe something for thread cutting? That document has 2 tables in it, one English en one metric.
That combined with a screw feed function.
It does look like change gears for threading to me, slots cut to move the gear studs, to allow for messing of larger and smaller gear sizes. The lever may be the engage unengage lever.
Looks like a geartrain / quickchanger
And the sliding plate with the 2 gears at the top and the slot at the bottom is the reverse tumbler I think. The “barrel” probably contains something like a spider coupling.
I still can’t get behind the make and model of that lathe though. It would help you a lot knowing the model. Have you tried Lathes + Machine Tool Archive ??
They even have an “unknown” section.
It’s definitely a set of change gears for a feedscrew. How it’s intended to work I’m not really sure. It would have to attach near the headstock and be driven by a belt. It would need to have some sort of feedscrew and carriage assembly that would have to attach to the bed. That’s considering it is even intended to be used on this lathe. It could have been someone’s pipe dream they thought they might try to make work one day. Neat little lathe though I have something similar but a bit newer, a Schaublin 102 plain turning lathe.
Sorry but I cant help. I’d guess there is something missing still.
Wow , a lot of replies! ty!
I reckon it’s part of a feed system, it does engage/disengage and the rod with hole to the left of the 2 oil fillers moves then (pic 2). I do not have any more of it though - I do have a load of bigger gears, but god knows where they go!
I roughly fitted it on under the black handle/edge (to the far left) it looks to me like it has at some point been running on that plastic, I thought at first it was just to get extra grip, but looking closer it looks like those teeth on that part in question have run on it, it’s virtually the same height.
Kikkoman, I have tried lathes.co.uk could find nothing, I even emailed the guy to see if he’d heard of the lathe, but no reply.
Shame I can’t find the other bits……. I do have a lot of other stuff that nothing that fits with this bit.
I think at some point there was more to this lathe than I have. I reckon that rod with a hole in would have connected to the feeder rod/screw and a part would have fitted to the tool holder., flick that lever and there’s the feed. Of course it could also be that someone tried to adapt it, it does look as though it’s been made to fit, rather than an original part, but I could be completely wrong.
Looks like it bolted to the t-slot on the front of the bed but it looks like you’re possibly missing whatever was needed to connect to the cross slide/carriage.
Yes, to be fair though it wouldn’t be the worst thing to make up…….(mind ticking over) maybe this on Banggood…. would it be up to it though?
I just saw this on ebay - maybe it fits on something like this - maybe that black handle comes off and a cog goes on?
It looks like a part called the lyre, and it is used to adjust the shift of the support when cutting non-standard climb threads.
European lathes standardly cut metric threads, if I need a witwort, I have to re-adjust the gear to the lyre.
These gears connect the spindle speed and threaded rods to the thread cutting.
You’d need a half nut and a thread dial at a minimum or you’d probably just crash it a lot.
That thing from banggood looks like a ballscrew which would not work for this purpose.
I just went down and tried it further, you can see by the brown rust shape on the front of the bed it has obviously been on there before, for some time. I put the head further back than it used to be when I moved it to my shed, you can see in the original photo (was in the old guys shed) there was a gap before (last pic in 1st post) You can also see where it was running on the black handle, it has teeth marks in - you could fit a cog ( I have a box full of all different size ones) to that shaft as it has key way - maybe this was just a ‘lazy’ way to connect it lol!
Ok. That mounting point makes sense. But again without the rest of the parts who knows? I’ll guess that the shaft that goes through the can with the two oil ports is driven via one of the flat belts.
I think you’re right mostly.
I’m fairly sure it’s driven by gears, that aren’t on the shaft (where the gap is) as there is nowhere for a belt to sit.
Truth is it’ll probably never work and was probably removed for a reason.
I have a load of bits in a big wooden chest I haven’t looked too closely at, just a quick eye over and they didn’t at that time look like they worked with this, but I’ll look again tomorrow and maybe upload some more pics of it all in a group.
I’m 99% sure there is no lead screw though.
You’re right. Looking again there would be a gear on the back of the headstock to drive it. If you spin the gears does the shaft coming out of the can move in and out? Or just spin?
It spins when you engage it with that lever. I believe there are 2 parts missing - the lead screw assembly and the bit that would somehow attach to the tool bed.
Even though it was obviously on there for years, but I’m only 85% convinced it was an original part, but it is very hard to tell. I have a niggling suspicion someone ‘made’ it fit and possibly work and at some point it was removed. Maybe it was in the way, maybe the motor struggled (belts slipping, it does happen without it) with it on all the time - who knows. I just wish I could find a mention of it on the web, or ideally a photo of it assembled.
Exactly. Shame you don’t have those parts as that setup would work quite well. The threading tooling for mine was a ridiculous crack pot attachment.
She’s dirty. Forgive me. Lol.