REVOLVING STAND.
To make this fixture use four solid wheels five and one-half, four and one-half, three and one-half and two and one-half feet in diameter. Fasten them three feet apart to a 3 × 3 in. post extending from the floor to the ceiling; the post to have bearings at each end. The largest wheel to be attached at the bottom 6 in. from the floor. Under this wheel, and fastened to the post, a large pulley is used.
Make the turn in the belt by the use of small pulleys attached to the motor. Regulate the speed to about one revolution a minute, and you have a window that no man need be ashamed of.