Portass model s gear setup

[kingchristo]

Hi just wondering if anyone can help with the gear setup on the portass model s

 

[benmychree]

What on earth is a Portass model S?

 

[kingchristo]

It's an old lathe made around 1951 in Sheffield uk

 

[CluelessNewB]

For the curious like me:
http://www.lathes.co.uk/portass-s/

I know nothing about the Portass lathes but the generic calculator on this page may be useful for selecting change gears for threading.
Change gear calculator: http://littlemachineshop.com/reference/change_gears.php

 

[kingchristo]

Thanks for that been having a look at it to try and work it out for just using the travel for working with not threading what do you normally set it to. Is it the slowest you can get