CONTRA-REVOLVING PILLARS.

The following mechanical fixture will serve to display almost any class of merchandise:

Make four boxes, ten inches square and seven and one-half feet long, by using 1-in. boards 10 in. square for the ends and 1-inch strips for the corners. Cover all four sides with pasteboard, it being puffed with cheesecloth. Then make a hexagonal box the same length, ten inches on a side. Treat this the same as the others. Now fasten across the window, eight feet from the floor, three two-inch strips. Place the first one 18 inches from the glass, making them as far apart as the window will admit of, the distance being equal, and the last one being at least ten inches from the back of the window. On the underside of the two end strips fasten a curtain fixture 12 inches from each end, and one of the same kind in the center of middle strip; on one end of each box fasten a curtain fixture to fit those on the strips. On the other end of each box fasten a 10-inch wood pulley; the pulley to be 2 inches from the end of the box and 3 inches from the floor. Make the connection from the floor to the end of the box with a 2-inch square post; fit curtain fixtures in the floor and to the end of the posts; then place the belt around the pulleys and attach to the motor; then trim the posts. Place a false bottom in the window just above the pulleys, cover with cloth, and the window is ready. Start your motor and the entire display is in motion.