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Technical Details of the Elliott 152 and 153
Appendix 1 Technical Details of the Elliott 152 and 153 Introduction The Elliott 152 computer was part of the Admiralty’s MRS5 (medium range system 5) naval gunnery project, described in Chap. 2. The Elliott 153 computer, also known as the D/F (direction-finding) computer, was built for GCHQ and the Admiralty as described in Chap. 3. The information in this appendix is intended to supplement the overall descriptions of the machines as given in Chaps. 2 and 3. A1.1 The Elliott 152 Work on the MRS5 contract at Borehamwood began in October 1946 and was essen- tially finished in 1950. Novel target-tracking radar was at the heart of the project, the radar being synchronized to the computer’s clock. In his enthusiasm for perfecting the radar technology, John Coales seems to have spent little time on what we would now call an overall systems design. When Harry Carpenter joined the staff of the Computing Division at Borehamwood on 1 January 1949, he recalls that nobody had yet defined the way in which the control program, running on the 152 computer, would interface with guns and radar. Furthermore, nobody yet appeared to be working on the computational algorithms necessary for three-dimensional trajectory predic- tion. As for the guns that the MRS5 system was intended to control, not even the basic ballistics parameters seemed to be known with any accuracy at Borehamwood [1, 2]. A1.1.1 Communication and Data-Rate The physical separation, between radar in the Borehamwood car park and digital computer in the laboratory, necessitated an interconnecting cable of about 150 m in length. -
Tng 83 Spring 1979
NARROW GAUGE RAILWAY SOCIETY Serving the narrow gauge world since 1951 SECRETARY MEMBERSHIP SECRETARY R. Pearman, 34 Giffard Drive, Cove, Farnborough, Hants. TREASURER J. H. Steele, 32 Thistley Hough, Penkhull, Stoke-on-Trent, ST4 5HU. The Society was founded in 1951 to encourage interest in all forms of narrow gauge rail transport. Members interests cover every aspect of the construction, operation, history and modelling of narrow gauge railways throughout the world. Society members receive this magazine and Narrow Gauge News, a bi-monthly review of current events on the narrow gauge scene. An extensive library, locomotive records, and modelling information service are available to members. Meetings and visits are arranged by local areas based in Leeds, Leicester, London, Malvern, Stoke-on-Trent and Warrington. Annual subscription £4.50 due 1st April. THE NARROW GAUGE ISSN 0142-5587 EDITOR M. Swift, 47 Birchington Avenue, Birchencliffe, Huddersfield, HD3 3RD. ASSISTANT EDITORS R.N. Redman, A. Neale. BACK NUMBER SALES G. Holt, 22 Exton Road, Leicester, LE5 4AF. Published quarterly by the Narrow Gauge Railway Society to record the history and development of narrow gauge rail transport. Our intention is to present a balanced, well illustrated publication, and the Editor welcomes original articles, photographs and drawings for consideration. Articles should preferably be written or typed with double spacing on one side of the paper only. The Editor appreciates a stamped addressed envelope if a reply is required. A range of back numbers, and binders for eight issues are available from the address above. Copyright of all material in this magazine remains vested in the authors and publisher. -
British Engineering in the Twentieth Century.Doc Page 1 of 2 the British
British Engineering in the Twentieth Century.doc Page 1 of 2 The British Thomson Houston company was formed in 1896, though its roots date back some ten years earlier. Manufacturing in the UK started in Rugby in March 1902 with a factory of 206,000 sq. ft. The plant produced its first turbo-alternator in 1905 and in 1907 BTH engaged in a joint venture with Wolseley Motors to construct petrol-electric buses. 1909 saw the Company involved in providing electrical equipment for the first trolley buses in London. From day one, the company was connected with the manufacture of incandescent lamps. In 1911 they obtained all the GE patents for drawn-wire tungsten filaments and the Mazda trade mark. Leading up to the Second World War, BTH was heavily involved in jet engine design and when the war began it manufactured magnetos, compressors, switchgear and was involved in the development of radar. On the 1st January 1960 BTH and Metropolitan Vickers were merged into AEI (Associated Electrical Industries Limited) and the BTH and MV names were lost forever in the world of electrical engineering. The American-owned firm British Westinghouse was responsible for the formation of Metropolitan-Vickers. MV was established in 1899 and located in Trafford Park, Manchester. This was an industrial area that became the focal point of many of MV’s activities. Metrovick was particularly successful in South Africa, Australia and New Zealand and, in 1922 alone, provided £1 million worth of railway traction equipment to South Africa. The 1920s was a period of considerable development for Metrovick with technical advances in the manufacture of turbines, generators, switchgear and industrial motors. -
GEC Computers Ltd
V1 January 2015 GEC Computers Ltd. Origins. In 1968 the real-time computing interests of AEI, Elliott-Automation, English Electric, Marconi and GEC, were consolidated into a single company [ref. 1]. It traded initially as Marconi Elliott Computer Systems Ltd (MECS) and then, after 1971, as GEC Computers Ltd. English Electric obtained the non-computing products and the mainframe data processing products were transferred to ICT/ICL. MECS, and GEC Computers, were for many years based at Borehamwood, though the specialist aerospace computing activities were soon transferred to Marconi-Elliott Avionics Systems Ltd. at Rochester. Initially, the range of MECS computers was inherited from Marconi and Elliott-Automation and comprised the MYRIAD series, M2100 series (a small-scale 16-bit multiprocessor for real-time control]), and the 900 series (see below). About 50% of the applications for these computers were described as ‘military’. The other 50% was made up roughly equally of the following applications areas: Industrial, Laboratory, Marine, Education, Traffic control, Communications, Medical. The GEC 900 series of computers [refs. 2- 4], though first introduced in 1961, had a life extending into the 1980s with machines such as the 920ATC. By then developments had for several years been based firmly at Rochester, under various titles such as GEC-Marconi Avionics Ltd. and eventually BAE Systems. The 900 series is described elsewhere, in the Mainframes section of the Our Computer Heritage website. [ref. 2]. The GEC 2000 and 4000 families. By 1970 GEC Computers Ltd. was working at the Computer Research Laboratory (CRL), Borehamwood, on three new computer ranges. These were known internally as Alpha, Beta, and Gamma. -
Marconi Wireless Telegraph Company of America (Assets Acquired by RCA in 1920) Marconi International Marine Communication Co
1/24/2019 Marconi Company - Wikipedia Marconi Company The Marconi Company was a British telecommunications and engineering Marconi Company Ltd company that did business under that name from 1963 to 1987. It was derived from earlier variations in the name and incorporation, spanning a period from Former type Private company its inception in 1897 until 2006, during which time it underwent numerous Industry Telecommunications changes, mergers and acquisitions. The company was founded by the Italian Fate Acquired by GEC inventor Guglielmo Marconi and began as the Wireless Telegraph & (1968) Signal Company. The company was a pioneer of wireless long distance Renamed to GEC- communication and mass media broadcasting, eventually becoming one of the Marconi Ltd UK's most successful manufacturing companies. In 1999, its defence (1987) manufacturing division, Marconi Electronic Systems, merged with British Predecessor Wireless Telegraph Aerospace to form BAE Systems. In 2006, extreme financial difficulties led to & Signal Company the collapse of the remaining company, with the bulk of the business acquired (1897–1900) by the Swedish telecommunications company, Ericsson. Marconi's Wireless Telegraph Company (1900–1963) Successor CMC Electronics Contents (1903–present) GEC-Marconi Ltd History Naming history (1987–1998) Early history BAE Systems Operations as English Electric subsidiary (1999 to present) Expansion in Canada Marconi plc Expansion as GEC subsidiary (1999–2003) Marconi Corporation Marconi name today plc See also (2003–2006) References -
Longreach Power Station
Powering the West The Coming of Electric Light In 1921 the Longreach Shire Council built a power scheme were objectives of the Board. Diesel Longreach Power House Clermont power stations. house on this site to supply electricity to the generating plant was installed in 1968, 1970 Area of Supply Development and supervision of installation of the gas plant was carried out by engineers of residents of Longreach. The original plant consisted and 1971. Each of these machines had an . June 1970. the State Electricity Commission of Queensland, H. (Herbert) Horton (Chief Mechanical of two Ruston and Hornsby gas engines, fuelled by output of 750 kW, giving Longreach an Engineer), A. (Alf) West (Senior Mechanical Engineer) and P.G.B. (George) Matthews (Power two charcoal gas producers, each driving a direct installed capacity in 1971 of 2550 kW, House Engineer/Manager). current generator by a flat belt. The generators had enabling the power house to meet its Morella a combined output of 134 kW. The cost of the maximum demand of 1870 kW, and to retire The Crossley-Premier 933 hp Engine driving a 650 kW generator installed in 1960, fuelled by building, generating plant and gas producers was the gas plant. The objective of the Board to the coal-fired producers gas, was reported at the time to be the largest generation combination £21,000 ($42,000). When electricity was switched reduce generating costs was achieved by the of its type in Australia. Longreach on in December 1921 it was by far the most efficient operation of the plant and the Ilfracombe expensive project ever undertaken by the Council. -
The Schedules [Heading to Schedules Amended by No
The Schedules [Heading to Schedules amended by No. 65 of 1977 s.4.] First Schedule THIS AGREEMENT is made the 14th day of November One thousand nine hundred and seventy four BETWEEN THE HONOURABLE SIR CHARLES WALTER MICHAEL COURT O.B.E. M.L.A. Premier of the State of Western Australia acting for and on behalf of the said State and instrumentalities thereof from time to time (hereinafter called “the State”) of the first part AGNEW CLOUGH LIMITED a company incorporated under the Companies Act 1961 of the said State and having its registered office therein at 22 Mount Street Perth (hereinafter called “the Company” which expression will include the successors and assigns of the Company and unless the context otherwise requires any assignee of the Company under clause 20 hereof) of the second part and MT. DEMPSTER MINING PTY. LTD. a company incorporated under the Companies Act 1961 of the said State and having its registered office therein at 22 Mount Street Perth (hereinafter called Mt. Dempster which expression will include the successors and assigns of Mt. Dempster) of the third part. WHEREAS: (1) Pursuant to the provisions of the Wood Distillation and Charcoal Iron and Steel Industry Act 1943 the Government of the State: — (a) established and since doing so has maintained and carried on certain undertakings upon the land described in the First and Second Schedules hereto for the purpose of producing charcoal and other products by any process of wood distillation and of producing charcoal iron and steel, and (b) has carried on the business of selling or using the charcoal and other products and the charcoal iron and steel produced as aforesaid; (which undertakings and business are hereinafter collectively called “the Industry”). -
Europeantransatlanticarmscoope
ISB?: 960-8124-26-3 © 2003 Defence Analysis Institute 17, Valtetsiou Street 10680 Athens, Greece Tel.: (210) 3632902 Fax: (210) 3632634 web-site: www.iaa.gr e-mail: [email protected] Preface Introduction The European Defence Industrial Base and ESDP RESTRUCTURING OF THE EUROPEAN DEFENCE INDUSTRY THE INDUSTRY-LED RESTRUCTURING PROCESS. 1997-1999: the European defence industry under pressure 13 Firms seek economies of scale and enlargement of the market State/industry consensus on the need for industrial consolidation From international cooperation to transnational integration 18 The first cooperative programmes, common subsidiaries and joint ventures Privatisation Concentration Groups with diversified activities Appraisal by sector of activities 27 Defence aerospace and electronics: a strategy of segment consolidation The land and naval armaments sectors: an industrial scene divided along national lines Trends in European defence industrial direct employment 37 Overview Situation by country THE OPERATING ENVIRONMENT 41 The permanence of the Europe/United States imbalance 43 Unfavourable conditions... …in the face of the American strategy of expansion in Europe First initiatives aimed at creating a favourable environment for European defence industries 48 Creation of ad hoc structures by the principal armaments producing countries (Germany, United Kingdom, France, Italy, Spain and Sweden) First steps towards an institutional strategy for the EU in the field of armaments ALL-UNION INITIATIVES, ENHANCED COOPERATION AND CONVERGENCE OBJECTIVES -
Class D16/1A Engineering and Design Overview
Class D16/1a Engineering and design overview D16/1a - major equipment… Chassis Power unit Alternators Type: British Rail Class 58 Type: English Electric 16SVT 1600hp Types: Brush BA1101A and BAA602A Date of manufacture: 1984 Date of manufacture: 1947 Date of manufacture: 1976-84 Date obtained: 2016 Date obtained: 2012 Date to be obtained: 2020 Rectifier Bogies Traction motors Type: Class 56 Type: BR Gorton to a LMS Derby design Type: Six 415hp Metro-Vickers MV146 Date of manufacture: 1976-84 Date of manufacture: 1953/54 Date of manufacture: 1953/54 Date to be obtained: 2020 Date obtained: 2018 Date obtained: 2018/9 CLASS D16/1A Type 3 Co-Co Design: LMSR(1947) / RDDC (2019) Engine: English Electric 16SVT mk1 Total b.h.p: 1600hp at 750rpm Max tractive effort: 184kN (41,400 lb) Main alternator: Brush BA1101A Transmission: Electric. Six axle hung Metropolitan Vickers MV146 traction motors. Braking: Davies and Metcalfe E70 brake system. Vacuum & air Train heating: Electric & steam Red Diamond Diesel Construction - D16/1a engineering and design overview Page 3 of 16 INTRODUCTION This document is intended to give an overview of the have been sourced. planned design of our loco, the third Class 16/1 loco, In 2019 we also took up residence in our refurbished which will be known as LMS 10000. storage and workshop facility based at Wirksworth The roots of the 10000 project go back to 2012, when on the Ecclesbourne Valley Railway. We are also very the group successfully purchased a 1947 build low pleased to have had a Mk 3 sleeper coach donated to hours Mark 1 16SVT engine, virtually identical to the our group by Porterbrook Leasing, making life a lot one originally fitted to 10000. -
Research Organizations in British Shipbuilding and Large Marine
Research Organisations in British Shipbuilding and Large Marine Engine Manufacture: 1945-1959 (Part II) Hugh Murphy Cet article fait suite à la première partie, qui traitait de la période 1900 à 1944. Ici, l’auteur étudie l’impact de la British Ship Research Association, de la Parsons Marine Turbine Research and Development Association et, de façon tangentielle, d’un groupe de conseil en recherche privé, le Yarrow Admiralty Research Department (Y-ARD), une filiale de Yarrow Shipbuilders établie dans le district Scotstoun de la rivière Upper Clyde, et le National Physical Laboratory (NPL). Il traite également de William Doxford & Sons, avant d’évaluer l’impact individuel et collectif de ces sociétés jusqu’en 1959, ainsi que la situation générale de la construction navale britannique et la fabrication de gros moteurs maritimes. This article follows on directly from Part 1 covering the period 1900-1944, published in the last issue. Here I examine the impact of the British Ship Research Association (BSRA) and Parsons Marine Turbine Research and Development Association (PAMETRADA). Tangentially I review one private research consultancy cluster, the Yarrow Admiralty Research Department (YARD) an offshoot of Yarrow Shipbuilders, Scotstoun, on the Upper Clyde, and the National Physical Laboratory (NPL). I also consider Wm Doxford & Sons, before assessing their individual and collective impact up to 1959, and the general situation in British shipbuilding and large marine engine manufacture. The Northern Mariner / Le marin du nord, XXX, No. 2 (Summer -
Company Histories
British companies delivering digital computers in the period 1950 – 1965. Elliott Brothers (London) Ltd. and Elliott-Automation. The Elliott Instrument Company was founded in 1804. By the 1870s, telegraph equipment and electrical equipment were added to the company’s products. Naval instrumentation became an area of increasing importance from about 1900, the company working with the Admiralty to develop Fire Control (ie gunnery control) electro-mechanical analogue computers. Elliott Brothers (London) Ltd. provided fire-control equipment to the Royal Navy from 1908 until shortly after the end of the Second World War. By 1946 the company’s main factory at Lewisham in south London had become a technological backwater. Although still skilled in manufacturing electro-mechanical equipment and precision electrical instrumentation, it had been bypassed by the huge war- time flow of government contracts for radar and allied electronic equipment. Compared with firms such as Ferranti Ltd., there was practically no electronic activity at Elliott’s Lewisham factory. The company actually traded at a loss between 1946 and 1951. Somewhat surprisingly, fresh discussions between the Admiralty and Elliott Brothers (London) Ltd. started in 1946, with the objective of persuading the company to host a new research team whose prime objective was to work on an advanced digital electronic Fire Control system and target-tracking radar. The Admiralty leased to the company a redundant factory at Borehamwood in Hertfordshire. This became known as Elliott’s Borehamwood Research Laboratory. It was at Borehamwood that a team of specially- recruited young scientists and engineers designed and built several secret digital computers for various classified projects. -
A History of British Railways' Electrical Research
Institute of Railway Studies and Transport History Working papers in railway studies, number eleven A history of British Railways’ electrical research by A O Gilchrist Published by Institute of Railway Studies and Transport History National Railway Museum University of York Leeman Road Heslington York YO26 4XJ York YO10 5DD UK UK ISSN 1368-0706 Text Copyright A O Gilchrist 2008 This format Copyright IRS&TH 2008 i CONTENTS Text: page 1. Preface 1 2. Origins under the British Transport Commission (1960-1962) 2 3. Under British Railways Board – the Blandford House years (1963-1966) 4 4. The move to Derby (1966-1968) 7 5. The period of the Ministry programme (1969-1985) 10 5.1. Two short-lived projects 11 5.1.1. Plasma torch 11 5.1.2. Autowagon 12 5.2. Signalling 13 5.2.1. By inductive loop 13 5.2.2. By transponder 16 5.2.3. By radio 17 5.2.4. Solid State Interlocking 18 5.3. Automatic Vehicle Identification (AVI) 20 5.4. Radio communications 21 5.5. Mathematics and computer science 22 5.6. Business machines 25 5.7. Electric traction 25 5.8. Maglev 27 5.9. Electrification 28 6. The final years under BR management (1985-1996) 33 6.1. The completion of SSI 34 6.2. Train detection 35 6.3. Signalling policy 36 6.4. IECC 39 6.5. Control Centre of the Future 41 6.6. CATE 42 6.7. VISION 43 6.8. Electric traction 44 6.9. Electrification 45 7. Conclusion 48 Figures (listed overleaf) are placed after the main text.