Lifting and telescoping dolly

A dolly comprising:

• a substantially rectangular planar main member having a top edge, a bottom edge, two side edges longer than the top and bottom edges, a front face, and a rear face;
• a substantially rectangular planar secondary member having a top edge, a bottom edge, two side edges longer than the top and bottom edges, the secondary member having the capability of being telescoped from the main member so that the main and secondary members form a substantially continuous and planar combined member having the bottom edge of the secondary member proximate the top edge of the main member, and the secondary member having a front face oriented in the same direction as the front face of the main member, and the secondary member having a support arm capable of being extended from and retracted into a receiver tube fixed to the secondary member at the urging of controls located on the main member;
• a base member slidably attached to the main member and substantially perpendicular to the main member plane near the bottom edge and on the front face of the main member, the base member being capable of supporting a predetermined load;
• a handle protruding from the rear face of the main member near the top edge of the main member and substantially perpendicular to the plane of the main member;
• an axle assembly attached near the bottom edge of the main member, the axle assembly having one or more transport wheels that support the dolly on a base surface;
• a substantially rectangular planar support member having a top edge, a bottom edge, and two side edges longer than the top and bottom edges, the top edge of the support member being rotatably and slideably attached to the main member between the top edge of the main member and the center of the main member such that the top edge of the support member is parallel to the top edge of the main member, and the support member depends from the rear face of the main member, the support member having an axle assembly attached near the bottom edge of the support member, the axle assembly having one or more support wheels;
• a support strut having a first end rotatably attached to the main member and a second end rotatably attached to the support member, the support strut being capable of telescoping and locking;
• a brake on at least one of the transport wheels;
• a strap for releasably attaching a load to the secondary member while the load is resting on the base member;
• a first winch attached to the rear face of the main member near the top edge of the main member;
• a second winch attached to the secondary member near the top edge of the secondary member;
• a first system of pulleys through which a first cable is led, the first end of the first cable being attached to a drum on the first winch, and the distal end of the first cable being attached proximate the bottom edge of the secondary member, the first system of pulleys and the first cable being capable of telescoping the secondary member from the main member under the urging of the first winch;
• and
• a second system of pulleys through which a second cable is led, the first end of the second cable being attached to a drum on the second winch, and the distal end of the second cable being attached to the base member, the second system of pulleys and the second cable being capable of sliding the base member and the predetermined load a predetermined distance along the telescoped combined member under the urging of the second winch.