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Drummond designed these locomotives to answer the need for a larger and more powerful version of William Adams' 0-4-4 T1 class of 1888. The Adams T1's 5 ft 7 in (1,702 mm) wheels had been developed to meet the LSWR's requirement for a compact and sure-footed suburban passenger locomotive to be utilised on the intensive commuter timetables around London. [3]
Guide rails are part of the inner workings of most elevator and lift shafts, functioning as the vertical, internal track. The guide rails are fixed to two sides of the shaft; one guides the elevator car and the other for the counterweight.
[4] It is equipped with a class III dynamic positioning system. Propulsion and position keeping is by six 5,500-kW retractable azimuthing thrusters. For shallow waters, there are 12 Flipper Delta anchors at 22.5 t, with 2,500 meters (8,200 ft), 80 mm mooring wire. The hull consists of two pontoons with four columns each. Transit draft is about ...
A simple dumbwaiter is a movable frame in a shaft, dropped by a rope on a pulley, guided by rails; most dumbwaiters have a shaft, cart, and capacity smaller than those of passenger elevators, usually 45 to 450 kg (100 to 992 lbs.) [2] Before electric motors were added in the 1920s, dumbwaiters were controlled manually by ropes on pulleys.
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A dimension may be shown on the construction drawings, but the actual dimension may vary, from very small to large increments, depending on jobsite conditions. It is extremely important that the fabricated item arrive on the jobsite ready to be installed without field modification.
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the rear of the F135 engine (nozzle rotated down) that powers the Rolls-Royce LiftSystem. Instead of using separate lift engines, like the Yakovlev Yak-38, or rotating nozzles for engine bypass air, like the Harrier, the "LiftSystem" has a shaft-driven LiftFan, designed by Lockheed Martin and developed by Rolls-Royce, [3] and a thrust vectoring nozzle for the engine exhaust that provides lift ...
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