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A gin pole in use loading logs A gin pole used to install a weather vane atop the 200-foot steeple of a church Roof trusses being assembled with gin poles. A gin pole is a mast supported by one or more guy-wires that uses a pulley or block and tackle mounted on its upper end to lift loads. The lower end is braced or set in a shallow hole and ...
Mast collapsed during replacement of corroded leg at 160 m. Four riggers killed. [41] Rekowo Radio Mast, Rekowo, Poland January 2, 2015: Guyed 60 Storm Häglared transmitter, Borås, Sweden May 15, 2016: Guyed mast of lattice steel 332 Sabotage Roughly half of the mast fell after guy wires had been sabotaged.
A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys. Most derricks have at least two components, either a guyed mast or self-supporting tower, and a boom hinged at its base to provide articulation, as in a stiffleg derrick. The most basic type of ...
Shear legs are a lifting device related to the gin pole, derrick and tripod (lifting device). Shears are an A-frame of any kind of material such as timbers or metal, the feet resting on or in the ground or on a solid surface which will not let them move and the top held in place with guy-wires or guy ropes simply called "guys".
Keith Uhlig is a regional features reporter for USA TODAY NETWORK-Wisconsin based in Wausau. Contact him at 715-845-0651 or kuhlig@gannett.com . Follow him at @UhligK on X, formerly Twitter, and ...
Gov. Tony Evers signed Executive Order #224, ordering American flags and the Wisconsin state flag to be flown at half-staff on Tuesday, May 14, in honor of Hmong-Lao Veterans Day.
What's the difference between half-staff and half-mast? Half-mast refers to flags on boats or ships, and half-staff refers to flags on land. Drew Dawson can be reached at ddawson@jrn.com or 262 ...
H.G. Cleveland: August 1899 A three-mast schooner carrying stone that sprung a leak and sunk four miles (6.4 km) off of Lorain. Rescued by City of Detroit and the tugboat Thomas Matham, everyone survived. Hickory Stick: 29 November 1958 The derrick barge broke apart and sank in a storm.