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A slide fence is a structural fence designed to physically stop falling rocks from reaching the tracks. The fence is designed to retain a rockslide if possible, but if it is displaced by such it also can cause the signaling system to display a restrictive aspect to approaching trains.
This may be initiated automatically when the Wheel Slide Protection system senses loss of adhesion, or the driver can operate it manually. Sanding may be connected to a computer system that determines the train's direction of travel and where the sand should be applied: either in front of or behind the trucks. In older locomotives there was a ...
Cable transport is a broad class of transport modes that have cables. They transport passengers and goods, often in vehicles called cable cars . The cable may be driven or passive, and items may be moved by pulling, sliding, sailing, or by drives within the object being moved on cableways .
Most split cable entries consist of a split hard frame, made of plastic or sometimes stainless steel (e.g. utilised in food industry) and one or several split sealing grommets, usually made of elastomer. [2] The grommet matching the cable diameter is placed around the cable and fixed inside the cable entry frame.
L-carrier also carried the first television network connections, though the later microwave radio relay system soon became more important for this purpose. Type L-3 was used for a short time for coast-to-coast network television feeds, but the advent of NTSC color was the cause for the move to Type TD microwave radio.
Andrew Smith Hallidie (March 16, 1836 – April 24, 1900) was an American entrepreneur who was the promoter of the Clay Street Hill Railroad in San Francisco. This was the world's first practical cable car system, and Hallidie is often therefore regarded as the inventor of the cable car and father of the present day San Francisco cable car system, although both claims are open to dispute.
High Lead logging in Western Oregon Cable grue Larix 3T, installed on agricultural tractor. Cable logging, also referred to as skyline logging, is a logging method primarily used on the West Coast of North America with yarder, loaders, and grapple yarders, but also in Europe (Austria, Switzerland, Czech Republic, France, Italy).
As the cabling is paid out, the shoes slide individually along the track and the coils expand. When sliding the other direction, the coils fold back together into a compact spiral. This is also referred to as a festoon. Folded linear cable uses either a flexible backbone shell, or a flat cable folded into an arc along its long axis.