Lever 1, turning about fixed axis A, has lug b which comes into contact with the external contour of lever (clamp) 2, turning about fixed axis B. When lever 1 is turned in the direction of arrow D, lug b turns lever 2 in the direction of arrow E , thereby clamping workpiece 3. The initial position of the levers is shown by dash lines.
$182$SL,GC$