In these teacher materials, students will discover how simple machines (lever, pulley, inclined plane, wedge, wheel and axle, and screw) have played a part in the development of arms and armor.
France (?), late 15th Century
steel and brass; incised decoration; pierced traceried Gothic windows, Rack - w:39.40 cm (w:15 1/2 inches)
Crank - w:30.20 cm (w:11 7/8 inches)
Gear housing - h:12.10 cm (h:4 3/4 inches). Gift of Mr. and Mrs. John L. Severance 1916.2082