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Two guy derricks at a granite quarry. 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 ...
File:Two men standing near a wooden shed in the midst of dozens of oil derricks in a Los Angeles oil field (CHS-1276).jpg Add languages Page contents not supported in other languages.
Alberta_oil_derricks,_1920s.jpg (770 × 462 pixels, file size: 57 KB, MIME type: image/jpeg) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Signal Hill became known as "Porcupine Hill" for its prickly appearance at a distance, covered with hundreds of wooden oil derricks (the low "nodding-donkey" pumpjack was yet to be invented). By 1923 the production from the field had become so abundant that oil from the Los Angeles Basin accounted for fully twenty percent of the entire world ...
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Derek Hough is baring it all -- sort of. The "World of Dance" judge took to Instagram this week to share two nude photos of himself and his girlfriend, Hayley Erbert, taking showers during a ...
The Keller derrick is the Mormon derrick type, distinguished by its quatrepodal base supporting an upright mast, at the top of which pivots a boom. The base is built of three six-by-six timbers, cut on a circular saw, laid over two similar sills and notched with straight-sided saddle notches at the intersections of sill and crosspiece.
The third-quarter pass secured the first Titans touchdown of the day. The Vikings blitzed five pass rushers on third-and-10. But Tennessee's offensive line stood its ground to buy Levis time as he ...