When tracing point A is moved along closed curve y=f(x), carriage 1 travels along guide 2 parallel to axis Ox, and gear 3, rigidly attached to lever 4 turns about axis B of carriage 1. Gear 3 meshes with and turns gear 5 to which frame a of recording wheel 6 is rigidly attached. Recording wheel 6 indicates the magnitude of the static moment: Mₓ=-(1/4)l∮(cos(2α))dx where l is distance A͞B.
$2506$LrG,MO$