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A Swivel is a mechanical device used on a drilling rig that hangs directly under the traveling block and directly above the kelly drive, that provides the ability for the kelly (and subsequently the drill string) to rotate while allowing the traveling block to remain in a stationary rotational position (yet allow vertical movement up and down the derrick) while simultaneously allowing the ...
Lincoln Industrial Corporation (Lincoln) is a manufacturer of automated lubrication systems, manual lubrication equipment and industrial pumping systems, and subsidiary of Svenska Kullagerfabriken AB . Founded in 1910, the company has been responsible for many of the inventions that established modern lubrication practices in automotive ...
Simple diagram of a drilling rig and its basic operation. The kelly drive is #19. A kelly drive is a type of well drilling device on an oil or gas drilling rig that employs a section of pipe with a polygonal (three-, four-, six-, or eight-sided) or splined outer surface, which passes through the matching polygonal or splined kelly (mating) bushing and rotary table.
Lincoln Electric Holdings, Inc. is an American multinational and global manufacturer of welding products, arc welding equipment, welding accessories, plasma and oxy-fuel cutting equipment and robotic welding systems headquartered in Euclid, Ohio. It has a network of distributors and sales offices covering more than 160 countries and 42 ...
The earliest combination guns were called swivel guns, (not to be confused with the more widely known small cannon that is mounted on a swiveling stand or fork and allows a wide range of motion) which used a set of barrels designed to rotate to allow either the rifled or the smoothbore barrel to line up with a flintlock mechanism before firing. [2]
The current Lincoln Log Cabin State Historic Site includes three houses on two sites: A reconstruction of the Thomas Lincoln log cabin, completed in 1934 as a project of the Civilian Conservation Corps. It is surrounded by a subsistence farmstead similar to the senior Lincoln's actual farm, is the central feature of the main site. The farm ...
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