Ive got a Jones and Shipman drill with the flat belt drive turns round the corner from the back cone speed change ,to spindle ......several people have told me "it wont work ,its impossible"....but it does work.....the strange thing is it only works in one direction.....in the opposite direction ,the belt just falls off........and the other strange thing is the spindle drive is self tensioning,it climbs up the pulley to about half way,by which time its quite tight....and easily drives 3/4 drills in steel.......came from the Qld railways wood shop,not a mark on the table ,as it had a thick block of wood bolted to it....cost $1 on tender ,and had a Rohm chuck,which the railways guy loading it stole......Right in front of me.