Abstract: A mechanical force enhancement device which both amplified an input force to produce a larger output force while also reducing the speed of an output member during the latter part of the output stroke. The device employs a sequential pivoting operation which is capable of providing the above results while being uncomplicated in its design and construction. The device includes a housing having a pair of spaced-apart camming plates. Each camming plate has a pair of opposing camming contours formed therein so as to define two sets of spaced-apart camming contours. At one end of each camming contour is a recess so as to define two sets of spaced-apart recesses. A linkage member is disposed between the camming plates and includes a driven end adjacent one of the sets of spaced-apart camming contours and a driving end adjacent the other set of spaced-apart camming contours.