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NZR KB Class
The NZR KB class of 1939 was a class of six mixed traffic steam locomotives built for New Zealand Railways Department (NZR), that operated on New Zealand's railway network. After the success of the K class, the KB class were built to meet the increasing traffic demands on the Midland Line in the South Island. The locomotives had a wheel arrangement of 4-8-4 and first appeared with distinctive streamlining, mainly to hide their ACFI feedwater systems. History Following the success of the K class in the North Island, there was a need for similar locomotives to operate the Midland Line, primarily between Springfield and Arthur's Pass. These new locomotives incorporated a number of improvements upon the K class, including a re-designed plate frame to eliminate cracking issues the K class experienced; roller bearings on all wheels; hydrostatic lubrication throughout; and the inclusion of the ACFI feed-water system that had been pioneered on K 919. The ACFI equipment's aes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4-8-4
Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of four leading wheels on two axles, eight powered and coupled driving wheels on four axles and four trailing wheels on two axles. The type was first used by the Northern Pacific Railway, and initially named the Northern Pacific, but railfans and railroad employees have shortened the name since its introduction. It is most-commonly known as a Northern. Overview Development The wheel arrangement was a progression from the 4-8-2, Mountain type and, like the 2-8-4, Berkshire and 4-6-4, Hudson types, an example of the "Super Power" concept in steam locomotive design that made use of the larger Firebox (steam engine), firebox that could be supported by a four-wheel trailing truck, which allowed greater production of steam. The four-wheel leading truck gave stability at speed and the eight driving wheels gave greater adhesion. The type evolved in the United States soon after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur's Pass
Arthur's Pass, previously called Camping Flat then Bealey Flats, and for some time officially Arthurs Pass, is a township in the Southern Alps of the South Island of New Zealand, located in the Selwyn district. It is a popular base for exploring Arthur's Pass National Park. Arthur's Pass township is about south of the mountain pass with the same name. At an elevation of above sea level, the settlement is surrounded by beech forest. The Bealey River runs through the township. The town is located from Christchurch, a two-hour drive on State Highway 73. Naming and history The township and the pass take their names after Arthur Dudley Dobson (1841–1934, Sir Arthur from 1931). The Chief Surveyor of Canterbury Province, Thomas Cass, had tasked Arthur Dobson to find out if there was an available pass out of the Waimakariri watershed into valleys running to the West Coast. In 1864, Arthur's brother Edward Henry Dobson joined him and accompanied him over the watershed into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Coast, New Zealand
The West Coast () is a regions of New Zealand, region of New Zealand on the west coast of the South Island. It is administered by the West Coast Regional Council, and is known co-officially as Te Tai Poutini. It comprises the Territorial authorities of New Zealand, territorial authorities of Buller District, Grey District and Westland District. The principal towns are Westport, New Zealand, Westport, Greymouth and Hokitika. The region, one of the more remote areas of the country, is also the most sparsely populated. With a population of just 32,900 people, the West Coast is the least populous region in New Zealand. The population in the region grew by 0.4% over the year to July 2023. The region has a rich and important history. The land itself is ancient, stretching back to the Carboniferous period; this is evident by the amount of carboniferous materials naturally found there, especially coal. First settled by Ngāi Tahu, Kāi Tahu in approximately 1200 AD, the area was famous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Injector
An injector is a system of ducting and nozzles used to direct the flow of a high-pressure fluid in such a way that a lower pressure fluid is Entrainment (hydrodynamics), entrained in the jet and carried through a duct to a region of higher pressure. It is a fluid-dynamic pump with no moving parts except a valve to control inlet flow. Depending on the application, an injector can also take the form of an ''eductor-jet pump'', a ''water eductor'' or an ''aspirator''. An ''Vacuum ejector, ejector'' operates on similar principles to create a vacuum feed connection for braking systems etc. The motive fluid may be a liquid, steam or any other gas. The entrained suction fluid may be a gas, a liquid, a slurry, or a dust-laden gas stream. Steam injector The steam injector is a common device used for delivering water to steam boilers, especially in steam locomotives. It is a typical application of the injector principle used to deliver cold boiler feedwater, water to a boiler against ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main South Line
The Main South Line, sometimes referred to as part of the South Island Main Trunk Railway, is a railway line that runs north and south from Lyttelton, New Zealand, Lyttelton in New Zealand through Christchurch and along the east coast of the South Island to Invercargill via Dunedin. It is one of the most important railway lines in New Zealand and was one of the first to be built, with construction commencing in the 1860s. At Christchurch, it connects with the Main North Line, New Zealand, Main North Line to Picton, New Zealand, Picton, the other part of the South Island Main Trunk. Construction Construction of the Main South Line falls into two main sections: from Christchurch through southern Canterbury, New Zealand, Canterbury to Otago's major city of Dunedin; and linking the southern centres of Dunedin and Invercargill, improving communication in southern Otago and large parts of Southland, New Zealand, Southland. Construction of the first section of the line began in 1865 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second World War
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hutt Workshops
The Hutt Railway Workshops is a major railway engineering facility in the Lower Hutt suburb of Gracefield in the Wellington region of New Zealand's North Island. It is state-owned enterprise KiwiRail's only workshops, and was opened in 1930. This facility is the central motive power maintenance operation and also maintains rolling stock. History Predecessor The Hutt Workshops were preceded by a workshops at Petone, adjacent to the railway station. It operated from 1876 when first used to store the H-class "Fell" locomotives until its replacement in 1929. Decision to move In the 1920s, the problems caused by the inadequacy of some railway workshop facilities was becoming more acute. In order to examine the issue, a Royal Commission was established in 1924 consisting of English railwaymen Sir Sam Fay and Sir Vincent Raven. One recommendation of their report read: "In the North Island the shops at Napier, Whangārei, and East Town, so far as locomotive work is concerne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cass, New Zealand
Cass is a small locality in inland Canterbury on New Zealand's South Island, near Arthur's Pass. It is known for its small railway station which was the subject of the 1936 painting ''Cass'' by Rita Angus, voted in 2006 New Zealand's favourite work of art. It is also the location of a University of Canterbury field station established in 1914. Cass currently has a single permanent resident. Geography Cass is in the Cass River basin, which is in turn in the Waimakariri River basin in western Canterbury, Selwyn District, of the South Island. It is 22 km from Arthur's Pass, and 105 km from Christchurch via State Highway 73 and the Midland Line. The settlement is on a plain surrounded by mountains 1200–1800 m above sea level, predominantly in the Black Range, Polar Range, and Craigieburn Range. To the east of the settlement is Cass Hill and Sugar Loaf, and to the west are Mount Misery and Mount Horrible; two hills on the floodplain are named Romulus and Remus. The topogr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firebox (steam Engine)
In a steam engine, the firebox is the area where the fuel is burned, producing heat to boil the water in the boiler. Most are somewhat box-shaped, hence the name. The hot gases generated in the firebox are pulled through a rack of tubes running through the boiler. Steam locomotive fire tube firebox In the standard steam locomotive fire-tube boiler, the firebox is surrounded by water space on five sides. The bottom of the firebox is open to atmospheric pressure, but covered by fire grates (solid fuel) or a firing pan (liquid fuel). If the engine burns solid fuel, like wood or coal, there is a grate covering most of the bottom of the firebox to hold the fire. An ashpan, mounted underneath the firebox and below the grates, catches and collects hot embers, ashes, and other solid combustion waste as it falls through the grates. In a coal-burning locomotive, the grates may be shaken to clean dead ash from the bottom of the fire. They are shaken either manually or (in larger locomoti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermic Syphon
Thermic siphons (alt. thermic syphons) are Heat-exchanger, heat-exchanging elements in the Firebox (steam engine), firebox or Combustion chamber#Steam engine, combustion chamber of some steam boiler and steam locomotive designs. As they are directly exposed to the radiant heat of combustion, they have a high evaporative capacity relative to their size. By arranging them near-vertically, they also have good water circulation by means of the thermosyphon effect. History The concept of a self-circulating thermic syphon began with stationary boilers and relatively simple Galloway tubes. They reached their peak in steam locomotive boilers, where the complexity of a syphon was justified by the need for a compact and lightweight means of increasing boiler capacity. One of the best-known forms for locomotives was invented by the English locomotive engineer who received a US patent. The Nicholson form combined a complex shape that provided more heating area in a given space than did the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bogie
A bogie ( ) (or truck in North American English) comprises two or more Wheelset (rail transport), wheelsets (two Railroad wheel, wheels on an axle), in a frame, attached under a vehicle by a pivot. Bogies take various forms in various modes of transport. A bogie may remain normally attached (as on many railroad cars and semi-trailers) or be quickly detachable (as for a dolly (trailer), dolly in a road train or in railway bogie exchange). It may include Suspension (vehicle), suspension components within it (as most rail and trucking bogies do), or be solid and in turn be suspended (as are most bogies of continuous track, tracked vehicles). It may be mounted on a swivel, as traditionally on a railway carriage or locomotive, additionally jointed and sprung (as in the landing gear of an airliner), or held in place by other means (centreless bogies). Although ''bogie'' is the preferred spelling and first-listed variant in various dictionaries, bogey and bogy are also used. Rail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Booster Engine
A locomotive booster for steam locomotives is a small supplementary two-cylinder steam engine back-gear-connected to the trailing truck axle on the locomotive or one of the trucks on the tender. It was invented in 1918 by Howard L. Ingersoll, assistant to the president of the New York Central Railroad. A rocking idler gear permits the booster engine to be put into operation by the driver (engineer). A geared booster engine drives one axle only and can be non-reversible, with one idler gear, or reversible, with two idler gears. There were variations built by the Franklin company which utilized side rods to transmit tractive force to all axles of the booster truck. These rod boosters were predominately used on the leading truck of the tender, though there is an example of a Lehigh Valley 4-8-4 using it as a trailing tender truck. A booster engine is used to start a heavy train or maintain low speed under demanding conditions. Rated at about at speeds from , it can be cut in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
