gin pole


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gin pole

[′jin ‚pōl]
(mechanical engineering)
A hand-operated derrick which has a nearly vertical pole supported by guy ropes; the load is raised on a rope that passes through a pulley at the top and over a winch at the foot. Also known as guyed-mast derrick; pole derrick; standing derrick.
References in periodicals archive ?
Extensive testing has been carried out on the gin pole body, and the rear roller.
The vast majority of options that are available for the chassis portion are: engine horsepower, transmission configuration, axle size and ratio, tire package (sand, hard pack) and for the deck options, gin poles, winch design (1,2,3) winches and size of power required, deck with hydraulic rise fifth wheel, fifth wheel only packages with winch support, there are also custom designed products that are specified with customer demand," says the company.
It is also fitted with a hydraulic operated cable winch with a gin pole and boom to retrieve large round blocks of wood.
The custom-built trucks, are designed to be used by contractors working in the oil and gas fields, and with a Gin Pole body are used to carry heavy loads in oil and gas fields, such as heavy 50-tonne power packs.
The company is currently using a TOR Trojan 996 with Gin Pole body to demonstrate its capabilities to customers.
The basic idea is to hinge the tower at the base and attach a gin pole to it at a 90-degree angle.
When the business end of the tower is lowered and supported a few feet off the ground, as it will be when it comes time to attach the turbine, the gin pole will be nearly vertical.
The guy wires were attached and inspected; the gin pole was assembled and attached to the lifting guy wires.
The gin pole is used to raise and lower the tower, and is usually about 1/2 the tower height.
To the top of the gin pole the hook of a come-along was chained securely through a large hole in the 4 by 4.
F&M MAFCO supplies stiff-leg and guy derricks to 600 Ton, hoists to 350,000 pound line pull, heavy lift gin poles and 1,000 Ton capacity and portable stiff-leg derricks to 35 Ton.
He then transports the disassembled barn to its new location, where he rebuilds it using tools used to erect barns centuries ago: gin poles, ropes, pulleys, the bull wheel and a lot of physical labor.