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From 1985 onwards, all new machines carried the 'RB' name instead of 'Ruston-Bucyrus', and in 1987, a new mechanical/hydraulic powered 51–60 model developed from the 38-RB was offered for use as a crane or dragline excavator [1] In 1990, RB bought from its rival Priestman, the design and manufacturing rights to Priestman's Variable ...
Drill pipe (#16) is a joint of hollow tubing used to connect the surface equipment to the bottom hole assembly (BHA) and acts as a conduit for the drilling fluid. In the diagram, these are stands of drill pipe which are 2 or 3 joints of drill pipe connected and stood in the derrick vertically, usually to save time while tripping pipe.
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.
Onega Tractor Plant: Petrozavodsk: 1703: crawler tractor skidding choker, forest fire crawler tractors, mowers, tracked timber trucks, tractor - wood shredders - shrubs and brushcutter equipment: Onezhets-310, Onezhets-320, Onezhets-330, Onezhets-335 and other Krasnoyarsk plant Timber Engineering (KrasLesmash ) Krasnoyarsk: 1916
The top drive allows the drilling rig to drill the longer section of a stand of drill pipe in one operation. [1] A rotary table type rig can only drill 30-foot (9.1 m) (single drill pipe) sections of drill pipe whereas a top drive can drill 60–90-foot (18–27 m) stands (double and triple drill pipe respectively, a triple being three joints of drillpipe screwed together), depending on the ...
This was the first garden tractor powered by 'Hy-Drive", a form of hydraulic propulsion that allowed for various heavy duty attachments and eliminated the need for transaxle drive belts. The Kern County Land Company, using oil money, bought the Case Company. In turn Kern County sold Case to Tenneco Company of Texas.
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