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An aerial tramway, aerial tram, sky tram, aerial cablecar, aerial cableway, telepherique, or seilbahn is a type of aerial lift which uses one or two stationary ropes for support while a third moving rope provides propulsion. With this form of lift, the grip of an aerial tramway cabin is fixed onto the propulsion rope and cannot be decoupled from it during operations. In comparison to gondola lifts, aerial tramways generally provide lower line capacities and higher wait times.
An elevated passenger ropeway, or chairlift, is a type of aerial lift, which consists of a continuously circulating steel wire rope loop strung between two end terminals and usually over intermediate towers, carrying a series of chairs. They are the primary on-hill transport at most ski areas, but are also found at amusement parks and various tourist attractions.
A rope is a group of yarns, plies, fibres, or strands that are twisted or braided together into a larger and stronger form. Ropes have tensile strength and so can be used for dragging and lifting. Rope is thicker and stronger than similarly constructed cord, string, and twine.
Abseiling, also known as rappelling, is the controlled descent of a steep slope, such as a rock face, by moving down a rope. When abseiling, the person descending controls his own movement down a static or fixed rope, in contrast to lowering off, in which the rope attached to the person descending is paid out by his belayer.
A dragline excavator is a heavy-duty excavator used in civil engineering and surface mining. It was invented in 1904, and presented an immediate challenge to the steam shovel and its diesel and electric powered descendant, the power shovel. Much more efficient than even the largest of the latter, it enjoyed a heyday in extreme size for most of the 20th century, first becoming challenged by more efficient rotary excavators in the 1950s, then superseded by them on the upper end from the 1970s on.
An aerial lift, also known as a cable car or ropeway, is a means of cable transport in which cabins, cars, gondolas, or open chairs are hauled above the ground by means of one or more cables. Aerial lift systems are frequently employed in a mountainous territory where roads are relatively difficult to build and use, and have seen extensive use in mining. Aerial lift systems are relatively easy to move and have been used to cross rivers and ravines. In more recent times, the cost-effectiveness and flexibility of aerial lifts have seen an increase of gondola lift being integrated into urban public transport systems.
Rope splicing in ropework is the forming of a semi-permanent joint between two ropes or two parts of the same rope by partly untwisting and then interweaving their strands. Splices can be used to form a stopper at the end of a line, to form a loop or an eye in a rope, or for joining two ropes together. Splices are preferred to knotted rope, since while a knot typically reduces the strength by 20–40%, a splice is capable of attaining a rope's full strength. However, splicing usually results in a thickening of the line and, if subsequently removed, leaves a distortion of the rope. Most types of splices are used on three-strand rope, but some can be done on 12-strand or greater single-braided rope, as well as most double braids.
Kernmantle rope is rope constructed with its interior core protected by a woven exterior sheath designed to optimize strength, durability, and flexibility. The core fibers provide the tensile strength of the rope, while the sheath protects the core from abrasion during use. This is the only construction of rope that is considered to be life safety rope by most fire and rescue services.
Wire rope is composed of as few as two solid, metal wires twisted into a helix that forms a composite rope, in a pattern known as laid rope. Larger diameter wire rope consists of multiple strands of such laid rope in a pattern known as cable laid. Manufactured using an industrial machine known as a strander, the wires are fed through a series of barrels and spun into their final composite orientation.
The eye splice is a method of creating a permanent loop in the end of a rope by means of rope splicing.
Kone Oyj is an elevator engineering company employing over 60,000 personnel across 60 countries worldwide. It was founded in 1910 and is now headquartered in Helsinki, Finland, with its corporate offices located in Espoo. In addition, Kone builds and services moving walkways, automatic doors and gates, escalators, and lifts. In the Finnish language, Kone means "machine".
An overhead crane, commonly called a bridge crane, is a type of crane found in industrial environments. An overhead crane consists of two parallel rails seated on longitudinal I-beams attached to opposite steel columns by means of brackets. The traveling bridge spans the gap. A hoist, the lifting component of a crane, travels along the bridge. If the bridge is rigidly supported on two or more legs running on two fixed rails at ground level, the crane is called a gantry crane or a goliath crane.
A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The most familiar form is an elevator, the car of which is raised and lowered by a hoist mechanism. Most hoists couple to their loads using a lifting hook. Today, there are a few governing bodies for the North American overhead hoist industry which include the Hoist Manufactures Institute, ASME, and the Occupational Safety and Health Administration. HMI is a product counsel of the Material Handling Industry of America consisting of hoist manufacturers promoting safe use of their products.
Hay Mills is an area of east Birmingham, England straddling the A45 Coventry Road about 3 miles (5 km) south east of the city centre. North of the Coventry Road is mainly residential whereas the south is mixed residential and commercial. The area was subsumed into Birmingham in 1911.
Bleichert, short for Adolf Bleichert & Co., was a German engineering firm founded in 1874 by Adolf Bleichert. The company dominated the aerial wire ropeway industry during the first half of the 20th century, and its portfolio included cranes, electric cars, elevators, and mining and ship-loading equipment. It ceased operations in 1993.
A mobile crane is a cable-controlled crane mounted on crawlers or rubber-tired carriers or a hydraulic-powered crane with a telescoping boom mounted on truck-type carriers or as self-propelled models. They are designed to easily transport to a site and use with different types of load and cargo with little or no setup or assembly.
A bulk-handlingcrane is one that, instead of a simple hook that can handle a range of slung loads, has an integral grab for lifting bulk cargoes such as coal, mineral ore etc.
Bridon Ropes, also known as Bridon International Ltd is a manufacturing company in Doncaster in South Yorkshire that makes wire rope. It is now part of the Belgium-based Bekaert company. The name Bridon originates from the concatenation or contraction of the words British and Doncaster; it is not a family name.
Rigging is both a noun, the equipment, and verb, the action of designing and installing the equipment, in the preparation to move objects. A team of riggers design and install the lifting or rolling equipment needed to raise, roll, slide or lift objects such as heavy machinery, structural components, building materials, or large-scale fixtures with a crane, hoist or block and tackle.
Usha Martin Limited is an Indian multinational company that primarily operates in the steel and wire rope manufacturing industry. It was founded in 1961 by Basant Kumar Jhawar and is headquartered in Kolkata, West Bengal, India. Usha Martin has grown to become one of the largest wire rope manufacturers globally.
References
- ↑ G.Rebel, R.Vereet, I.M.L.Ridge. "Lightweight ropes for lifting applications" (PDF). OIPEEC Rope Solutions (October 2007): 51.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ↑ "WRCA Signs Definitive Agreement to Purchase CASAR" (PDF). Wire Rope Corporation of America. 9 August 2007. Archived from the original (PDF) on 17 August 2011. Retrieved 21 April 2018.
- ↑ Cranes Today: WRCA buys CASAR Archived 2011-07-08 at the Wayback Machine
- ↑ Rau, Kristin. "Das sind Deutschlands geheime Weltmarktführer". www.wiwo.de (in German). Retrieved 2022-04-28.
