Patent ID: 8151935

Claim:
Lifting and positioning apparatus including: (a) a base support including a chassis mounted on at least one axle having a wheel means rotatably mounted on either end of the axle; (b) an elevator mechanism having an upper and a lower end; (c) an actuator operatively connected to the elevator mechanism for enabling shifting of the elevator mechanism between a retracted position and an extended position; (d) a trolley assembly mounted on the upper end of the elevator mechanism adapted for enabling substantially linear motion of the trolley assembly relative to the upper end of the elevator assembly backwards or forwards in a first direction; (e) a rotating platform mounted on the trolley assembly adapted for rotation of the rotating platform relative to the trolley assembly in a substantially horizontal plane; and (f) a slide plate mounted on the rotating platform adapted for horizontal linear motion of the rotating platform relative to the trolley assembly backwards or forwards in a second direction; wherein an axis of rotation of the rotating platform is displaced by moving the trolley assembly backwards or forwards in the first direction to allow for simultaneous horizontal displacement in the first and second directions; and wherein the first direction is substantially perpendicular to the second direction.