Patent ID: 7849965

Claim:
A system comprising: a pulley permanently attached to a non-portable structure; a closed loop of cable installed around the pulley and being of sufficient length so as to reach, when deployed outside of the structure, below the pulley to an area next to a base of the structure; a load attached to the loop; a traction winch around which the loop is operatively installed to lift the attached load, the traction winch being located in the area next to the base; and a moveable pulley around which the loop is installed, the moveable pulley being located in the area next to the base and designed to be moved relative to the winch and said pulley to (i) increase tension in the loop as installed so that the load, suspended by the loop, moves away from a side of the structure and (ii) decrease tension in the loop as installed so that the suspended load moves towards the side of the structure.