Patent ID: 8439332

Claim:
A method for stringing aerial cables through a tower structure using aircraft, comprising the steps of: threading a length of an elongated tubular member releasably attached to an aircraft haul line, to which a sock line is secured, and having a plurality of rearward facing projections extending from the surface thereof, wherein a selected number of the plurality of projections are capable of freely pivoting to a position approximately perpendicular to the surface along a first longitudinal line on the surface of the tubular member and the remaining projections are capable of freely pivoting to a position approximately perpendicular to the surface along a second longitudinal line on the surface, not collinear with the first line, each projection of the plurality of projections being capable of pivoting through the tubular member to a location approximately perpendicular to an opposing surface of the tubular member, through a block supported on the tower structure, having a pulley and a frame member disposed on one side of the pulley adapted to receive and releasably hold the tubular member on the pulley when engaged by at least one of the plurality of projections, using an aircraft; detaching the aircraft haul line from the tubular member; moving the aircraft around the tower structure such that the length of the elongated member threaded through the frame member can be accessed thereby; attaching the aircraft haul line to the length thereof threaded through the receiving member; and hauling the tubular member to another tower.