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Okuma Corporation (オークマ株式会社, Ōkuma Kabushiki-gaisha) is a machine tool builder based in Ōguchi, Aichi Prefecture, Japan. It has global market share in CNC machine tools such as CNC lathes , machining centers , and turn-mill machining centers.
Offshore drilling rigs have similar elements, but are configured with a number of different drilling systems to suit drilling in the marine environment. The equipment associated with a rig is to some extent dependent on the type of rig but typically includes at least some of the items listed below.
Okuma Corporation, a manufacturer of CNC turning and milling machines Ōkuma, Fukushima (大熊町; -machi), a town located in Futaba District, Fukushima Prefecture, Japan Ōkuma Station (逢隈駅), a JR East railway station located in Watari, Miyagi Prefecture, Japan
The Art of Angling, first published in 1651, is the first English language book to cite the use of fishing reels. 'Nottingham' and 'Scarborough' reel designs. The first English book on fishing is "A Treatise of Fishing with an Angle" in 1496 (its spelling respective to the manner of the date is The Treatyse of Fysshynge with an Angle [7] ').
A beam-type pumpjack converts the rotary motion of the motor (usually an electric motor) to the vertical reciprocating motion necessary to drive the polished-rod and accompanying sucker rod and column (fluid) load. The engineering term for this type of mechanism is a walking beam.
Fly rod weights are typically expressed as a number from 1 to 12 written as "N"wt (e.g. 6wt), and each weight represents a standard weight in grains for the first 30 ft (9 m) of the fly line, established by the American Fishing Tackle Manufacturing Association. For example, the first 30 in (75 cm) of a 6wt fly line should weigh between 152 ...
Deepsea Delta semi-submersible drilling rig in the North Sea Comparison of deepwater semi-submersible (left) and drillship (right). A semi-submersible platform is a specialised marine vessel used in offshore roles including as offshore drilling rigs, safety vessels, oil production platforms, and heavy lift cranes.
In this simple diagram of a drilling rig, #20 (in blue) is the rotary table. The kelly drive (#19) is inserted through the center of the rotary table and kelly bushings, and has free vertical (up & down) movement to allow downward force to be applied to the drill string, while the rotary table rotates it.
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