ClipArt ETC
"The pulley is first put in a revolver lathe and there bored and reamed, while on edge of the rim is turned at right angles to the hub bore. Then the pulley is unchecked, and put on a mandrel." —Grimshaw, 1902

Turning Belt Pulleys

"The pulley is first put in a revolver lathe and there bored and reamed, while on edge of the rim is…