Hi Peter,
The Halifax lathe is very similar to the Atlas 10" lathe, see lathes.co.uk website.. **LINK**
I have got the Atlas lathe which I have completely modified with an electronic gearbox, these lathes unless very well looked after will most definately need attention to the bedways which will most likely be worn on all sides causing the saddle to stck when positioned along the bed to the tailstock.
There have been quite a number of Atlas lathes on Ebay recently, these lathes have not had a good press which is a shame as they are quite capable of good work if set up correctly, some people claim as good as any Myford which is similar in build.
I was virtually given the lathe and at first I was perplexed to find that the bed was worn and I was not prepared to pay for a proper re-grind so decided to take the unorthodox method of doing it myself which will no doubt cause shock and horror to proper engineers…using a small-ish surface plate and emery paper, even worse shock and horror..!
I had to make a jig to grind the bedway edges and I have recently checked the wear on the bed surface with a larger surface plate and was pleased to find very little difference along the bed, however screwing down the bed supports can cause bedway distortion and needs to be checked whilst tightening down.
Another problem I found was that the oiler hole for the headstock was never designed to deliver oil to the bearings and was blocked by the outer ring of the bearing itself, how it survived I don't know.
Well it may not be the right way of doing but the results I get are pretty accurate, certainly accurate enough for model engineering.
Bob.