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NZR Y Class
The NZR Y class was a class of three 0-6-0T tank steam locomotives. Built by the Hunslet Engine Company for the Public Works Department in 1923, all three were sold to NZR between 1938 and 1945. In service The three Y class locomotives were sold by the PWD to NZR in two batches, NO 543 being purchased in October 1938 and NOs 542 and 544 in August 1945. Originally they were allocated to the Way and Works Branch for construction work but later saw some use by the Mechanical Branch as shunting engines for hire to private industries whose own engines were under repair. The three engines were transferred to the Mechanical Branch in 1951 and received the class letter 'Y' in 1952. During their service life with the NZR, the locomotives retained their original PWD numbers. In 1949, NO 544 was loaned to the Whakatane Board Mills for use on their Matahina Tramway while their two ex-NZR FA class locomotives were overhauled. This was the most notable use of one of these engines while on loa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hunslet Engine Company
The Hunslet Engine Company is a locomotive-building company, founded in 1864 in Hunslet, England. It manufactured steam locomotives for over 100 years and currently manufactures diesel shunting locomotives. The company is part of Ed Murray & Sons. History The early years 1864–1901 The company was founded in 1864 at Jack Lane in Hunslet by John Towlerton Leather, a civil engineering contractor, who appointed James Campbell (son of Alexander Campbell, a Leeds engineer) as his works manager. The first engine was completed in 1865. It was ''Linden'', a standard gauge delivered to Brassey and Ballard, a railway civil engineering contractor as were several of the firm's early customers. Other customers included collieries. This basic standard gauge shunting and short haul "industrial" engine was to be the main-stay of Hunslet production for many years. In 1871, James Campbell bought the company for £25,000 (payable in five instalments over two years) and the firm rema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
0-6-0
Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of no leading wheels, six powered and coupled driving wheels on three axles and no trailing wheels. This was the most common wheel arrangement used on both tender and tank locomotives in versions with both inside and outside cylinders. In the United Kingdom, the Whyte notation of wheel arrangement was also often used for the classification of electric and diesel-electric locomotives with side-rod coupled driving wheels. Under the UIC classification, popular in Europe, this wheel arrangement is written as C if the wheels are coupled with rods or gears, or Co if they are independently driven, the latter usually being electric and diesel-electric locomotives. Overview History The 0-6-0 configuration was the most widely used wheel arrangement for both tender and tank steam locomotives. The type was also widely used for diesel switchers (shunters). Because they lack leading and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as stratum, rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous (Pennsylvanian (geology), Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walschaerts Valve Gear
The Walschaerts valve gear is a type of valve gear used to regulate the flow of steam to the pistons in steam locomotives, invented by Belgium, Belgian railway mechanical engineering, engineer Egide Walschaerts in 1844. The gear is sometimes named without the final "s", since it was incorrectly patented under that name. It was extensively used in steam locomotives from the late 19th century until the end of the steam era. History The Walschaerts valve gear was slow to gain popularity. The Stephenson valve gear remained the most commonly used valve gear on 19th-century locomotives. However, the Walschaerts valve gear had the advantage that it could be mounted entirely on the outside of the locomotives, leaving the space between the locomotive frame, frames clear and allowing easy access for service and adjustment, which resulted in it being adopted in some articulated locomotives. The first locomotive fitted with the Walschaerts valve gear was built at the Belgian Tubize worksh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand Railways Department
The New Zealand Railways Department, NZR or NZGR (New Zealand Government Railways) and often known as the "Railways", was a government department charged with owning and maintaining New Zealand's railway infrastructure and operating the railway system. The Department was created in 1880 and was corporatised on 1 April 1982 into the New Zealand Railways Corporation. Originally, railway construction and operation took place under the auspices of the former provincial governments and some private railways, before all of the provincial operations came under the central Public Works Department. The role of operating the rail network was subsequently separated from that of the network's construction. From 1895 to 1993 there was a responsible Minister, the Minister of Railways. He was often also the Minister of Public Works. Apart from four brief experiments with independent boards, NZR remained under direct ministerial control for most of its history. History Originally, New Ze ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR FA Class
The NZR FA class was a class of tank steam locomotives that was built as a larger version of the NZR F class 0-6-0T. The requirements were for larger water and coal capacity on a locomotive that could handle grades better than the F class. Due to costs involved in producing new machines, NZR chose to rebuild existing machines with larger coal and water capacity, larger boiler and firebox, higher boiler pressure and larger diameter pistons. Seven F class engines were rebuilt between 1892 and 1897. Another seven were built new, one at Newmarket Workshops in 1896 and six at Addington Workshops in 1902–03. Improvements Due to longer distances being travelled, it became clear that the standard F class were unable to cope due to their limited coal and water capacity. The first twelve locomotives rebuilt to class FA between 1892 and 1895 were designed to overcome this problem. The locomotives were re-equipped with Walschaerts valve motion, new side tanks and cabs, and a larger boiler ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Auckland Line
The North Auckland Line (designation NAL) is a major section of New Zealand's national rail network, and is made up of the following parts: the portion of track that runs northward from Westfield Junction to Newmarket Station; from there, westward to Waitakere; from there, northward to Otiria via Whangārei. The first section was opened in 1868 and the line was completed in 1925. The line, or sections of it, have been known at various times as the Kaipara Line, the Waikato-Kaipara Line, the Kaipara Branch and the North Auckland Main Trunk. North Auckland Line is a designation for the section of track, not a service route. The southernmost portion from Westfield Junction to Newmarket was originally built as part of the North Island Main Trunk railway, with Newmarket serving as the junction of the two lines. The North Island Main Trunk was re-routed in 1930 via the Westfield Deviation through Glen Innes and Panmure. Westfield-Newmarket was then incorporated into the North ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR D Class (1874)
NZR D class steam tank locomotives operated on New Zealand's national railway network. The first entered service in 1874 all had been withdrawn by the end of 1927, which allowed the D classification to be used again in 1929. Introduction The boiler and cylinders were the same as the slightly earlier C class, but its driving wheels had a larger diameter and it was aesthetically different from the C. The class was ordered in a number of batches: eight from Neilson and Company in 1874, five from Dübs and Company and four from Neilson in 1878, seven from Neilson in 1880, ten from Scott Brothers in 1887, and the final D from Scott Brothers in 1890. The order with Scott Brothers, placed in 1884, was the first large-scale construction of locomotives in New Zealand. Names Four of the 1874 locomotives were named: *D 143: ''Trout'' *D 144: ''Kingfisher'' *D 169: ''Possum'' *D 240: ''Snapper'' Operation The class was not particularly powerful and was employed on light d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museum Of Transport And Technology
The Museum of Transport and Technology (MOTAT) is a science and technology museum located in Western Springs, Auckland, New Zealand. It is located close to the Western Springs Stadium, Auckland Zoo and the Western Springs Park. The museum has large collections of civilian and military aircraft and other land transport vehicles. An ongoing programme is in place to restore and conserve items in the collections. This work is largely managed by volunteers but, since the passing of the Museum of Transport and Technology Act in 2000, has been supported by full-time professional museum. New public programmes and facilities now promote the collections. MOTAT was established in 1960 by a combination of groups including the Old Time Transport Preservation League, which was formed in 1957 and preserved trams and railway locomotives. MOTAT was formally opened in 1964. MOTAT – Great North Road MOTAT was built around the site of a beam engine pump house, which originally provided Aucklan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotives Of New Zealand
Steam is a substance containing water in the gas phase, and sometimes also an aerosol of liquid water droplets, or air. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization. Steam that is saturated or superheated is invisible; however, "steam" often refers to wet steam, the visible mist or aerosol of water droplets formed as water vapor condenses. Water increases in volume by 1,700 times at standard temperature and pressure; this change in volume can be converted into mechanical work by steam engines such as reciprocating piston type engines and steam turbines, which are a sub-group of steam engines. Piston type steam engines played a central role in the Industrial Revolution and modern steam turbines are used to generate more than 80% of the world's electricity. If liquid water comes in contact with a very hot surface or depressurizes quickly below its vapor pressure, it can create a steam explosion. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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