A jin-pole or gin pole (the more common spelling) is a rigid pole with a pulley or Block and tackle on the end used for the purpose of lifting. The lower portion of the gin-pole is set in a shallow hole in the ground and the top secured with three or more guy-wires. The wires or ropes can be manipulated to position the object being lifted. or attached to the upper exterior of an existing tower or structure. The gin-pole's free end extends above the location the object is to be lifted. When used to create a segmented tower or antenna, the gin-pole can be detached, raised and re-attached to the just completed segment for the purpose of lifting the next segment. The process is repeated until the top most portion of the tower is completed.
- notes & drawings
- tower contractor's description with diagram
- instructions with illustrations for erecting a jin-pole as part of a mast
- jin pole regulations in Ca.
- jin pole failure leads to lawsuit april 15, 1948 in philadelphia
- Patton, William Macfarland. A treatise on civil engineering. New York: J. Wiley & sons, 1895. 1214.
- Australia, Emergency Management (2006). General and disaster rescue skills for emergency services personnel (5th ed. ed.). Dickson, A.C.T.: Emergency Management Australia. p. 131-132. ISBN 1921152028.
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