I am looking at a very old machine called a Radcliffe Jigger/Jolly. The
thing has a motor that by way of belts drives a sheave (big pully) on
the end of ahorizontal shaft about four feet long. On the opposite end
from the sheave is mounted a big metal disk. This shaft with it's disk
turns at a constant RPM. .

Where the big disk is, it engages a small wheel mounted on a vertical
shaft. I cannot see from pictures exactly how that smaller wheel moves,
but somehow this is a clutch assembly and drive assembly that allows the
large disk to drive the smaller wheel to drive the vertical shaft. At
the same time, it allows the vertical shaft to speed up and slow down.

So, my questions is, which way does the smaller wheel have to move to
speed up and which to slow down??. Towards the center of the big disk -
or away from the big disk.

Has anyone ever seen such a thing? How would you clutch it to disengage
it altogether.- put it in an idle mode?

Thanks,

John Rodgers
88 GL Driver