Inversion cam and cylinder power means

Claim 1

Power means comprising: a base; power cylinder means including a cylinder having a piston rod moveable in a reciprocal, linear path of motion with respect to the cylinder, and means pivotally supporting the power cylinder means for pivotal motion on the base; a pair of axially spaced shafts mounted on the base for rotation about an axis fixed with respect to the base, said axis of rotation being disposed generally transverse to the linear path of motion of the piston rod; a yoke having a pair of spaced sides attached to the pair of shafts such that as the cylinder is moved in a pivotal motion on the base, the yoke and the shafts are moved in a pivotal motion about said axis of rotation, the sides of the yoke having slot means; a cam plate having a curved cam slot mounted on the base; and cam roller means carried on the piston rod and moveably received in both the slot means in the yoke and the cam slot in the cam plate such that the piston rod is moveable along a path of motion traversing said axis of rotation between the shafts, whereby as the piston rod is moved at a uniform rate of motion with respect to the cylinder, the shafts are rotated at a variable rate of motion in a variance depending upon the curvature of the cam plate slot.