|
South African Class 14 4-8-2
The South African Railways Class 14 4-8-2 of 1913 was a steam locomotive. Between 1913 and 1915, the South African Railways placed 45 Class 14 steam locomotives with a 4-8-2 Mountain type wheel arrangement in service in Natal.Espitalier, T.J.; Day, W.A.J. (1945). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued).'' South African Railways and Harbours Magazine, July 1945. pp. 513-514. Manufacturer The Class 14 locomotive was a development of the Class 12 and was similar enough to it that many components were interchangeable. It was ordered from Robert Stephenson and Company in 1913 and was delivered in three batches between 1913 and 1915, numbered in the range from 1701 to 1745. Characteristics At the time the Class 14 was designed by D.A. Hendrie, Chief Mechanical Engineer (CME) of the South African Railways (SAR), it was believed that small differences in wheel diameter had disproportionate effects on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Railways
Transnet Freight Rail is a South African rail transport company, formerly known as Spoornet. It was part of the South African Railways and Harbours Administration, a state-controlled organisation that employed hundreds of thousands of people for decades from the first half of the 20th century and was widely referred to by the initials SAR&H (SAS&H in Afrikaans). Customer complaints about serious problems with Transnet Freight Rail's service were reported in 2010. Its head office is in Inyanda House in Parktown, Johannesburg. History Railways were first developed in the area surrounding Cape Town and later in Durban around the 1840s. The first line opened in Durban on 27 June 1850. The initial network was created to serve the agricultural production area between Cape Town and Wellington. The news that there were gold deposits in the Transvaal Republic moved the Cape Colony Government (supported by British Government) to link Kimberley as soon as possible by rail to Cape Town ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston Valve (steam Engine)
Piston valves are one form of valve used to control the flow of steam within a steam engine or locomotive. They control the admission of steam into the cylinders and its subsequent exhausting, enabling a locomotive to move under its own power. The valve consists of two piston heads on a common spindle moving inside a steam chest, which is essentially a mini-cylinder located either above or below the main cylinders of the locomotive. Overview In the 19th century, steam locomotives used slide valves to control the flow of steam into and out of the cylinders. In the 20th century, slide valves were gradually superseded by piston valves, particularly in engines using superheated steam. There were two reasons for this: * It is difficult to lubricate slide valves adequately in the presence of superheated steam * With piston valves, the steam passages can be made shorter. This, particularly following the work of André Chapelon, reduces resistance to the flow of steam and improves eff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Randfontein
Randfontein is a gold mining town in the West Rand, Gauteng, South Africa, west of Johannesburg. With the Witwatersrand gold rush in full swing, mining financier JB Robinson bought the farm Randfontein and, in 1889, floated the Randfontein Estates Gold Mining Company. The town was established in 1890 to serve the new mine and was administered by Krugersdorp until it became a municipality in 1929. Apart from having the largest stamp mill in the world, Randfontein, like many of the other outlying areas of Johannesburg, is essentially a rural collection of farms and small holdings in a particularly beautiful part of Gauteng. History Early History Randfontein's existence dates back to the 1550s when the AmaNdebele lived as one nation at Emhlangeni (today's Randfontein area) under King Mhlanga approximately between 1550 and 1580. The name of Emhlangeni is translated today into the Sesotho language as Mohlakeng, which is one of the southeastern suburbs of the town. Formation Randfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rustenburg
Rustenburg (; , Afrikaans and Dutch: ''City of Rest'') is a city at the foot of the Magaliesberg mountain range. Rustenburg is the most populous city in North West province, South Africa (549,575 in 2011 and 626,522 in the 2016 census). In 2017, the city's Gross Domestic Product (GDP) reached ZAR 63.8 billion, accounting for 21.1% of the GDP of the North West Province, and 1.28% of the GDP of South Africa. Rustenburg was one of the official host cities of the 2010 FIFA World Cup, being in close proximity to Phokeng, the capital of the Royal Bafokeng Nation, where the Royal Bafokeng Stadium is located. The England national football team also used this as their base camp for the tournament. History Mfecane Before European settlers arrived, the area had been settled by agrarian Setswana-speaking tribes Rustenburg's population is primarily Tswana people. Partially belonging to the Royal Bafokeng Nation, extensive landowners earning royalties from mining operations. The Royal Baf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenside, Gauteng
Greenside, is a suburb of Johannesburg, South Africa. Greenside borders on the suburbs Emmarentia, Parkview, Parkhurst and Victory Park. History Greenside lies on land that once made up the ''Braamfontein Farm'', one of many large farms that makes what is Johannesburg and its suburbs. The farm land was bought in 1886 by Lourens Geldenhuys for its mining rights as it was hoped that the Confidence Reef would extend into his farm but it did not. Land remained as a farm and by 1891 it was divided, along what is now Orange Road, between his son's Frans and Louw where the brothers had already built two farm houses. Louw Geldenhuys died in 1929 and his wife Emmarentia would begin to sell parts of the farm that became the surrounding suburbs, one of which became Greenside on 4 February 1931 and was surveyed by the Rand Mines Group. Greenside's name is considered to be Scottish in origin, and refers to the adjacent Parkview Golf Club. The golf course has its origins much earli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garratt
A Garratt (often referred to as a Beyer Garratt) is a type of steam locomotive invented by British engineer Herbert William Garratt that is articulated into three parts. Its boiler, firebox, and cab are mounted on a centre frame or "bridge". The two other parts, one at each end, have a pivot to support the central frame; they consist of a steam engine unit – with driving wheels, trailing wheels, valve gear, and cylinders, and above it, fuel and/or water storage. Articulation permits locomotives to negotiate curves that might restrict large rigid-framed locomotives. The design also provides more driving wheels per unit of locomotive weight, permitting operation on lightly engineered track. Garratt locomotives produced as much as twice the power output of the largest conventional locomotives of railways that introduced them, reducing the need for multiple locomotives and crews. Advantages of the Garratt concept The principal benefit of the Garratt design is that the boil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zimbabwe
Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Botswana to the south-west, Zambia to the north, and Mozambique to the east. The capital and largest city is Harare. The second largest city is Bulawayo. A country of roughly 15 million people, Zimbabwe has 16 official languages, with English, Shona language, Shona, and Northern Ndebele language, Ndebele the most common. Beginning in the 9th century, during its late Iron Age, the Bantu peoples, Bantu people (who would become the ethnic Shona people, Shona) built the city-state of Great Zimbabwe which became one of the major African trade centres by the 11th century, controlling the gold, ivory and copper trades with the Swahili coast, which were connected to Arab and Indian states. By the mid 15th century, the city-state had been abandoned. From there, the Kingdom of Zimbabwe was established, fol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class 15A 4-8-2
The South African Railways Class 15A 4-8-2 of 1914 was a steam locomotive. Between 1914 and 1925, the South African Railways placed 119 Class 15A steam locomotives with a 4-8-2 Mountain type wheel arrangement in service, delivered in ten batches from three manufacturers.Espitalier, T.J.; Day, W.A.J. (1945). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued).'' South African Railways and Harbours Magazine, August 1945. pp. 593-594. Manufacturers The Classes 15 and 15A were the final development of the plate-framed Mountain locomotive designed by D.A. Hendrie, Chief Mechanical Engineer (CME) of the South African Railways (SAR) from 1910 to 1922. Of the whole Hendrie Mountain family, the Class 15A was the most numerous and proved to be his most useful. The predecessor Class 15 locomotives had one flaw, their excessively long fire tubes. When more locomotives of the type were ordered, Hendrie improved the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swaziland
Eswatini ( ; ss, eSwatini ), officially the Kingdom of Eswatini and formerly named Swaziland ( ; officially renamed in 2018), is a landlocked country in Southern Africa. It is bordered by Mozambique to its northeast and South Africa to its north, west, south, and southeast. At no more than north to south and east to west, Eswatini is one of the smallest countries in Africa; despite this, its climate and topography are diverse, ranging from a cool and mountainous highveld to a hot and dry Veld, lowveld. The population is composed primarily of ethnic Swazi people, Swazis. The prevalent language is Swazi language, Swazi (''siSwati'' in native form). The Swazis established their kingdom in the mid-18th century under the leadership of Ngwane III. The country and the Swazi take their names from Mswati II, the 19th-century king under whose rule the country was expanded and unified; its boundaries were drawn up in 1881 in the midst of the Scramble for Africa. After the Second Boer W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mozambique
Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west, and Eswatini and South Africa to the southwest. The sovereign state is separated from the Comoros, Mayotte and Madagascar by the Mozambique Channel to the east. The capital and largest city is Maputo. Notably Northern Mozambique lies within the monsoon trade winds of the Indian Ocean and is frequentely affected by disruptive weather. Between the 7th and 11th centuries, a series of Swahili port towns developed on that area, which contributed to the development of a distinct Swahili culture and language. In the late medieval period, these towns were frequented by traders from Somalia, Ethiopia, Egypt, Arabia, Persia, and India. The voyage of Vasco da Gama in 1498 marked the arrival of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Witwatersrand
The Witwatersrand () (locally the Rand or, less commonly, the Reef) is a , north-facing scarp in South Africa. It consists of a hard, erosion-resistant quartzite metamorphic rock, over which several north-flowing rivers form waterfalls, which account for the name Witwatersrand, meaning "white water ridge" in Afrikaans.Truswell, J.F. (1977). ''The Geological Evolution of South Africa''. pp. 21, 27–28, 33–36. Cape Town: Purnell. This east-west-running scarp can be traced with only one short gap, from Bedfordview (about west of O.R. Tambo International Airport) in the east, through Johannesburg and Roodepoort, to Krugersdorp in the west (see the diagram at left below).Norman, N.; Whitfield, G. (2006) ''Geological Journeys''. pp. 38–49, 60–61. Cape Town: Struik Publishers. The scarp forms the northern edge of a plateau (or ridge) which rises about above the surrounding plains of the Highveld. A number of picturesque Johannesburg suburbs, including Observatory, Linksfi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class 3B 4-8-2
The South African Railways Class 3B 4-8-2 of 1912 was a steam locomotive. In 1912, the South African Railways took delivery of ten Class 3B steam locomotives with a 4-8-2 Mountain type wheel arrangement which had been ordered by the Natal Government Railways the year before.Espitalier, T.J.; Day, W.A.J. (1945). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued).'' South African Railways and Harbours Magazine, June 1945. pp. 431-432.Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912, pp. 8, 12, 15, 46 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000) Manufacturer With the experience gained from the sole experimental South African Class 3A 4-8-2, Class B American D locomotive, Natal Government Railways (NGR) Locomotive Superintendent D.A. Hendrie redesigned his South African Class 3 4-8-2, Class Hendrie D and placed orde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Piston Valve (steam Engine)")
