The little Hercus Model "0" horizontal miller incorporated a neat, built-on 16-speed all-V-belt drive (at a guess from 20 to 800 rpm) with a "backgeared" spindle that appears to have used (unsurprisingly) not only South Bend lathe gears assembly but also the same gear-guard covers. as well. Whether a 1.5" x 8 t.p.i South Bend spindle nose was employed as well is unconfirmed.
Whilst the machine was of entirely conventional construction one notable point was the generous traverse movement achieved by an unusually long (and suitably wide) slide. A vertical head was also available and the machine was developed into a further version, details of which are, at the time of writing, unknown. If you have a Hercus miller, or any information about them, the writer would be interested to hear from you.