My Delta floor model was made sometime in the 1950s, and has a similar step pulley speed system- - - -plus I've installed a second motor and a sprag clutch setup to give it twice as many speeds- - - - -24 in all, I believe. The table can be swung aside to use the base as a platform for really tall stuff- - - -like a Stovebolt engine block.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!