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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 ...
Goose-neck (#10) is a thick metal elbow connected to the swivel and standpipe that supports the weight of and provides a downward angle for the kelly hose to hang from. Kelly drive (#19) is a square, hexagonal or octagonal shaped tubing that is inserted through and is an integral part of the rotary table that moves freely vertically while the ...
HMS Peterel (or Peterell) was a 16-gun Pylades-class ship-sloop of the Royal Navy.She was launched in 1794 and was in active service until 1811. Her most famous action was the capture of the French brig Ligurienne when shortly after Peterel captured two merchant ships and sent them off with prize crews, three French ships attacked her.
Typical armament for UH-1 gunship, M134 minigun and Mk 40 FFAR with a swivel-mounted M60 machine gun. The United States military has developed a number of Helicopter Armament Subsystems since the early 1960s.
The head added by the pump is a sum of the static lift, the head loss due to friction and any losses due to valves or pipe bends all expressed in metres of fluid. Power is more commonly expressed as kilowatts (10 3 W, kW) or horsepower (1 hp = 0.746 kW).
Kingpins were always clamped in the centre and the swivel bearings at the ends, to increase the lever arm and so reduce the bearing load. Independent front suspension developed through the 1930s, for high-performance cars at least, often using double wishbone suspension. This performance also encouraged the reduction of unsprung weight.