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A magnetostrictive torsion wire delay line Schematic of circuit connections to the acoustic delay line used in NBS mercury memory (top); block diagram of the mercury memory system (bottom) FUJIC's ultrasonic mercury delay line memory (capacity: 255 words = 8,415 bits) Ultrasonic delay line from a PAL color TV (delay time 64 μs), showing path ...
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
A motor controller is a device or group of devices that can coordinate in a predetermined manner the performance of an electric motor. [1] A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against overloads and electrical ...
The switched reluctance motor (SRM) is a type of reluctance motor. Unlike brushed DC motors , power is delivered to windings in the stator (case) rather than the rotor . This simplifies mechanical design because power does not have to be delivered to the moving rotor, which eliminates the need for a commutator .
The safety of the M939 series of trucks has been criticized, especially braking performance and stability when loaded. In 1999 the U.S. Army began retrofitting anti-lock brake systems to the M939 trucks. [24] Until the trucks were modified, they were limited to a 40 mph (65 km/h) top speed by an Army-wide safety order. [citation needed]
The length of a chassis corresponds to which container size will fit (i.e., a 40-foot-long chassis fits a 40-foot-long container), but some models are adjustable length. [3] A port crane lifts a container from a ship to a chassis for road transport. Twistlocks. Semi-tractor trucks hook up to chassis via the kingpin. When disconnected from a ...
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1924 Brockway 2.5-ton truck on display at the Iowa 80 Trucking Museum, Walcott, Iowa. They began with Continental engines but switched to Wisconsin in 1925. They bought the Indiana Truck Corporation in 1928 but were forced to sell it to White Motor Company in the early years of the Great Depression. A new range, the V1200 was offered from 1934 ...