So that old (only 5 to 7 years younger than me, so assuredly old ) crane has moved a lot of scrap on the Plywood Empire Route in these intervening years. I cut up some Fastrack for the ways the crane rolls on.
A bit rough like everything these hands do these days but it sure does work. Notice the black string passing over a pulley in foreground.
That string winds on/off a drum which is part of a salvaged 282 crane mechanism mounted under the table.
The other end of the string passes over a second pulley and is attached to a suitable weight hanging under the table.
An overall view of this busy area.