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By woodray
#759183
Hi there, I have just joined the forum with the hope that there are a few experts out there that can help me with my Coronet lathe that was recently given to me. I think it is a Coronet Minor because it matches photos I have seen on the web but there is no chuck with it and the drive belt is in poor condition.
What I want to know is how do you replace the belt as it seems to be encased by the body of the lathe and there are no clear signs that the body can be split.
Also I would like to know what chucks will screw onto it and where I can purchase spares for this model, the saw blade is in poor condition and there is no blade gaurd. I would like to know how you remove the saw blade too.
I know some may say chuck it (forgive the pun!) but I have a passion for old tools and machinery and would love to see it restored to its former glory.
Looking forward to any useful replies,
Ray
By hanser
#759188
Hi Ray

Welcome to UKWorkshop. I'm afraid I can't help with your questions but I'm sure someone can . Perhaps the Wood turners forum would have been a better place for the question?
By Vic Perrin
#759192
Hi,
Not to sure about the Coronet but replacement of the drive belt on most lathes involves the removal of the headstock drive shaft in order to thread the drive belt over the pulleys.
By dickm
#759200
it's a long time since I had a Coronet (the version sold by Gamages of ancient memory!), but they are wonderfully solid machines and well worth saving. As far as accessories go, the sky's the limit, since AFAIK, Coronet actually established the 3/4" by 16tpi nose thread as the "industry standard" and it's still used by Record (who bought out Coronet).

Can't remember the precise details of removing the main shaft, but there is probably a pinch bolt on the casting furthest from the chuck and two ring nuts either side of the bronze bearing on the part nearest the chuck. Slacken off all these, (you'll need a C-spanner like the ones that used to be in bike toolkits :D to move the ring nuts) completely remove the ring nut nearer the pulley and you should find that the whole spindle plus bearings will slide out from within the headstock. You may need to give the rear bearing a little gentle persuasion ON THE OUTER RING OF THE BEARING. Don't hammer the end of the shaft, you'll burr it over and probably wreck the bearing at the same time.
As it says in the Haynes manuals, "replacement is the reverse of disassembly". Once it's all back together, you'll need to adjust the bronze bearing using the two ring nuts so that everything runs freely without "slop".

But don't even THINK of scrapping a lovely machine like that.
By woodray
#759207
Thank you Dick, I will have a look at it tomorrow and have a go at removing the shaft, it is a bit rusty so a soaking in WD40 might be the first course of action.
Ray
By woodray
#759265
Thanks for the attachment Robbo I have been trying to obtain a manual for the lathe but so far no luck. From the diagram it looks like the motor is attached to the body of the lathe is that so?, because my lathe came with a seperate motor on a wooden plinth. I was going to mount the two parts on a bench using T slots but if there is some sort of bracket I will have to try and locate one.

The lathe was given to me by the widow of the previous owner and it has been stored in a damp shed for some time and she asked me to take it down to the local tip. Unfortunately there were no other parts in the shed hence the lack of chuck and sawblade gaurd.

I had never tried turning before a recent visit to a craft fair where I was invited to have a go and it has given me the urge to add turning to my woodworking skills so if anyone out there knows a source for parts so that I can restore this old girl I would be delighted to hear from you.

I have just joined UK Workshop and am already impressed so please keep the replies coming,
Thank You woodray
By dickm
#759358
woodray wrote:Thanks for the attachment Robbo I have been trying to obtain a manual for the lathe but so far no luck. From the diagram it looks like the motor is attached to the body of the lathe is that so?, because my lathe came with a seperate motor on a wooden plinth. I was going to mount the two parts on a bench using T slots but if there is some sort of bracket I will have to try and locate one.



It's possible that your's is also the Gamages version of the Coronet, like the one I had. The headstock of that didn't have the extensions for mounting the motor directly, and there was an enormous and weird motor mounted on the baseboard. Which would be fine, except that you then can't swivel the head for turning larger items. No idea what the original sellers expected would be done for this, but it was a relatively easy job to fabricate a pair of brackets that attached to the headstock and happily carried an old Hotpoint washing machine motor. Also had to fabricate a bowl turning rest that bolted to the left hand legs. After modification, it did a 20" diameter spinning wheel with no problems. Unfortunately, there are no pictures of the modifications and when last heard, it had gone to Tools for Self-reliance, or the next owner might have been persuaded to take some.

It might be possible to find a "proper" headstock from somewhere, but a pretty long shot.
If you could post some pics of the lathe, there are likely to be other Coronet buffs around who can comment further.
By thomvic
#759412
Tusses wrote:I have the same lathe.
I thought next time I change the belt I'll use a segmented belt. (sort of like a bicycle chain)


It is called "Brammer Belt" I've used it on my Coronet Major lathe. I only have the lathe part. Now converted to variable speed via an inverter and 3 phase motor.

Richard
By thomvic
#759662
Yes. I can also tell you that we used to use lots of them at work before I retired. Most good bearing and transmission companies stock them.

Richard