Posted by Neil Wyatt on 29/11/2016 20:49:10:
Garages always used to have lathes for skimming brake discs, of course these days they are consumables.
They were also used for skimming commutators on dynamos and starter motors before it became economical to buy reconditioned units. Also, many of the older garages – my grandfather's included – grew out of engineering businesses, and retained such machine tools as they had.
As for the lathe in the film, my Zyto (and all the others I have seen) was not a cantilever bed and had a much lighter bed casting. The ML4 was by far the most common Myford model. The bed looks too long for the ML1 and ML2. The ML3 with separate headstock was only made between 1937 and 1941. The tailstock clamp is correct for the later ML4 with, as far as I can see, an upper adjustment screw and a lower clamp. The backgear guard isn't a standard Myford one, but they weren't supplied fitted until relatively late, so many people would have made a 'hum grumit' one (remember that?). The backgear lever is pointing vertically downward, which I've never seen, but it may be possible with a non-Myford guard. There is a whole host of other details consistent with the ML4, so my vote is for Myford ML4 or a very close copy.
George