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South African Class 12B 4-8-2
The South African Railways Class 12B 4-8-2 of 1920 was a steam locomotive. In 1920, the South African Railways placed thirty Class 12B steam locomotives with a 4-8-2 Mountain type wheel arrangement in service.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, October 1945. p. 780. Manufacturer In May 1920, an additional thirty locomotives, built to the Class 12 design of SAR Chief Mechanical Engineer (CME) D.A. Hendrie, were delivered to the South African Railways (SAR) from Baldwin Locomotive Works in the United States of America. Most of them were erected in the SAR workshops, but a few were contracted to James Brown and Company at Durban for erection. Even though they were very similar to the second and subsequent orders of the Class 12 which was also designed specifically for the Midland System, they were classified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Elizabeth
Gqeberha (), formerly Port Elizabeth and colloquially often referred to as P.E., is a major seaport and the most populous city in the Eastern Cape province of South Africa. It is the seat of the Nelson Mandela Bay Metropolitan Municipality, South Africa's second-largest metropolitan district by area size. It is the sixth-most populous city in South Africa and is the cultural, economic and financial centre of the Eastern Cape. The city was founded as Port Elizabeth in 1820 by Sir Rufane Donkin, who was the governor of the Cape at the time. He named it after his late wife, Elizabeth, who had died in India. The Donkin memorial in the CBD of the city bears testament to this. Port Elizabeth was established by the government of the Cape Colony when 4,000 British colonists settled in Algoa Bay to strengthen the border region between the Cape Colony and the Xhosa. It is nicknamed "The Friendly City" or "The Windy City". In 2019, the Eastern Cape Geographical Names Committee recommended ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safety Valve
A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits. Pilot-operated relief valves are a specialized type of pressure safety valve. A leak tight, lower cost, single emergency use option would be a rupture disk. Safety valves were first developed for use on steam boilers during the Industrial Revolution. Early boilers operating without them were prone to explosion unless carefully operated. Vacuum safety valves (or combined pressure/vacuum safety valves) are used to prevent a tank from collapsing while it is being emptied, or when cold rinse water is used after hot CIP (clean-in-place) or SIP (sterilization-in-place) procedures. When sizing a vacuum safety valve, the calculation method is not defined in any norm, particularly in the hot CIP / cold water scenario, but some manu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2D1 Locomotives
D1, D01, D.I, D.1 or D-1 can refer to: Science and technology Biochemistry and medicine * ATC code D01 ''Antifungals for dermatological use'', a subgroup of the Anatomical Therapeutic Chemical Classification System * Dopamine receptor D1, a protein * Haplogroup D1 (Y-DNA) * Vitamin D1, a form of Vitamin D * DI, Iodothyronine deiodinase type I, an enzyme involved with thyroid hormones Technology * Nikon D1, a digital single-lens reflex camera * D1, former brand of T-Mobile in Germany * D1, an abbreviation for DOCSIS 1.0 1.0, an international telecommunications standard * D-1 (Sony), an early digital video recording format * STS-61-A, also known as D-1, the 22nd mission of NASA's Space Shuttle program * D-1, from the Proton (rocket family), Russian rockets * Mercedes D.I, a 1913 German aircraft engine Military World War I fighter aircraft * AEG D.I * Albatros D.I * Halberstadt D.I, experimental version of Halberstadt D.II (and Aviatik D.I variant) * Aviatik (Berg) D.I * Daimler ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watson Standard No
Watson may refer to: Companies * Actavis, a pharmaceutical company formerly known as Watson Pharmaceuticals * A.S. Watson Group, retail division of Hutchison Whampoa * Thomas J. Watson Research Center, IBM research center * Watson Systems, maker of shopping trolleys * A. J. Watson, IndyCar roadster chassis constructor * Watsons Water, a bottled water company in Hong Kong Computing * Watson (computer), an IBM supercomputer which won the game show ''Jeopardy!'' * Dr. Watson (debugger), the internal debugger for the Windows platform * Intellext Watson, an application for the Windows platform * Karelia Watson, an application for the Macintosh platform Name *Watson (surname) * Watson (given name) Fictional characters * Dr. Watson, a character in ''Sherlock Holmes'' stories * Mary Jane Watson, a Spider-Man character * Esme Watson, a character in Australian television program ''A Country Practice'' Places ;Antarctica * Watson Peninsula, South Orkney Islands ;Australia * Watson, Austr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotives Of South Africa
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 steam, superheated is invisible; however, "steam" often refers to wet steam, the visible mist or aerosol of water droplets formed as water vapor condensation, condenses. Water increases in volume by 1,700 times at standard temperature and pressure; this change in volume can be converted into work (physics), mechanical work by steam engines such as reciprocating engine, 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 quic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klipplaat
Klipplaat is a town in Sarah Baartman District Municipality in the Eastern Cape province of South Africa. The town is some 185 km north-west of Port Elizabeth and 75 km south-east of Aberdeen. It takes its name from large slabs of rock on the surface of the ground; from Afrikaans Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans gra ... ''klip'': 'stone' or 'rock'; ''plaat'': 'sheet' or 'slab'. References {{Sarah Baartman District Municipality Populated places in the Dr Beyers Naudé Local Municipality ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class 33-400
The South African Railways Class 33-400 of 1968 was a South African and Namibian diesel-electric locomotive. Between 1968 and 1970, the South African Railways placed 115 Class General Electric type U20C diesel-electric locomotives in service. Many of them were transferred to TransNamib, the Namibian Railways, upon South West Africa’s independence on 21 March 1990.South African Railways Index and Diagrams Electric and Diesel Locomotives, 610mm and 1065mm Gauges, Ref LXD 14/1/100/20, 28 January 1975, as amended Manufacturer The Class 33-400 type GE U20C diesel-electric locomotive was designed for the South African Railways (SAR) by General Electric (GE) and built by the South African General Electric-Dorman Long Locomotive Group (SA GE-DL, later Dorbyl). The 115 locomotives were delivered between July 1968 and March 1970, numbered in the range from to . Class 33 series The Class 33 consisted of three series, the GE South African Class 33-000, Classes and and the Electro-Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class 15F 4-8-2
The South African Railways Class 15F 4-8-2 of 1938 is a steam locomotive. The Class 15F was the most numerous steam locomotive class in South African Railways service. Between 1938 and 1948, 255 of these locomotives with a 4-8-2 Mountain type wheel arrangement entered service.Espitalier, T.J.; Day, W.A.J. (1947). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued).'' South African Railways and Harbours Magazine, February 1947. pp. 129-131. Manufacturers The Class 15F 4-8-2 Mountain type steam locomotive was designed by W.A.J. Day, Chief Mechanical Engineer (CME) of the South African Railways (SAR) from 1936 to 1939, based on the design of the Class 15E by his predecessor, A.G. Watson, and later modified again by his successor, M.M. Loubser. It was built in five batches by four locomotive manufacturers in Germany and the United Kingdom over a period of ten years spanning the Second World War. * The first 21 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class 12 4-8-2
The South African Railways Class 12 4-8-2 of 1912 was a steam locomotive. Between April 1912 and 1922, the South African Railways placed all together 46 Class 12 steam locomotives with a 4-8-2 type wheel arrangement in goods train service.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. 432-434. Manufacturers Design work commenced in 1910 for a new heavy goods engine for use on the heavy coal service between Witbank and Germiston. The resulting Class 12 was the first locomotive design to originate from the newly established South African Railways (SAR) in 1912. It was, in effect, an enlarged version of the already successful South African Class 3B 4-8-2, Class 3B which had also been designed by SAR Chief Mechanical Engineer (CME) D.A. Hendrie during his years on the Natal Government Railways. Orders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Of America
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janney Coupler
Janney couplers are a semi-automatic form of railway coupling that allow rail cars and locomotives to be securely linked together without rail workers having to get between the vehicles. They are also known as American, AAR, APT, ARA, MCB, knuckle, Buckeye, tightlock (in the UK), Henricot (in Belgium) or Centre Buffer Couplers. Background Janney couplers were first patented in 1873 by Eli H. Janney (). Andrew Jackson Beard was amongst various inventors that made a multitude of improvements to the knuckle coupler; Beard's patents were granted 23 November 1897, which then sold for approximately $50,000, and granted 16 May 1899. In the UK, several versions of Janney couplers are fitted to a limited number of coaches, multiple units, wagons and locomotives. Janney Type E, Type F Interlock, and Type H tightlock couplings are compatible subtypes, each intended for specific rail car types. Prior to the formation of the Association of American Railroads (AAR) these were known as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
