主权项 |
1. An apparatus for lifting, wherein the apparatus comprises:
a base housing, wherein the base housing is comprised of a central opening and a plurality of exterior mounts; a center post, wherein the center post is secured within the central opening of the base housing; further wherein the base housing is comprised of at least two bearings to constrain the motion of the center post to rotational motion; a plurality of supporting legs, wherein the supporting legs are connected to the base housing by attachment to the plurality of exterior mounts; a lifting arm, wherein the lifting arm is movably attached to the center post; and a lifting mechanism, wherein the lifting mechanism is configured to apply a lifting force to the lifting arm; wherein the lifting mechanism further comprises a locking mechanism; wherein the locking mechanism is configured to keep the lifting arm stationary when in a locked position; further wherein the locking mechanism is configured to allow the stationary arm to rotate when in an unlocked position. |