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121 quarter
[ˈkwɔːtə]1. noun1) one of four equal parts of something which together form the whole (amount) of the thing:There are four of us, so we'll cut the cake into quarters
It's (a) quarter past / (American) after four
رُبْعtwo and a quarter hours.
2) in the United States and Canada, (a coin worth) twenty-five cents, the fourth part of a dollar.قِطْعَة نَقْدِيَّه: رُبْع دولار3) a district or part of a town especially where a particular group of people live:حَي في المَدينَهHe lives in the Polish quarter of the town.
4) a direction:جِهَه، مَكانPeople were coming at me from all quarters.
5) mercy shown to an enemy.رَحْمَه6) the leg of a usually large animal, or a joint of meat which includes a leg:فَخْذ البَقَرa bull's hindquarters.
7) the shape of the moon at the end of the first and third weeks of its cycle; the first or fourth week of the cycle itself.ربيع أوَّل أو ربيع ثانٍ8) one of four equal periods of play in some games.رُبْع اللعْبَه9) a period of study at a college etc usually 10 to 12 weeks in length.فَصل دِراسي في الكُلِّيَّه2. verb1) to cut into four equal parts:يُقَسِّم إلى أرباعWe'll quarter the cake and then we'll all have an equal share.
2) to divide by four:يُقَسِّم على أرْبَعَهIf we each do the work at the same time, we could quarter the time it would take to finish the job.
3) to give ( especially a soldier) somewhere to stay:يُنْزِل، يأوي الجُنودThe soldiers were quartered all over the town.
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122 store
[stɔː]1. noun1) a supply of eg goods from which things are taken when required:مِقْدار وافِرThe quartermaster is the officer in charge of stores.
2) a (large) collected amount or quantity:مَخْزون مِن، ذَخيرَهHe has a store of interesting facts in his head.
3) a place where a supply of goods etc is kept; a storehouse or storeroom:مَخْزَنIt's in the store(s).
4) a shop:مُسْتَوْدَع، مَتْجَرa department store.
2. verb1) to put into a place for keeping:يَخْزِنWe stored our furniture in the attic while the tenants used our house.
يُملأ بالبَضائِعThe museum is stored with interesting exhibits.
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123 opzetten
♦voorbeelden:zij kwamen in groten getale opzetten • they turned/showed up in great/large numbers/in force/in strengthII 〈 overgankelijk werkwoord〉2 [op iets plaatsen] put on4 [met betrekking tot dode dieren] stuff♦voorbeelden:1 zijn kraag opzetten • turn up/raise one's collareen tent opzetten • pitch/put up a tenteen plaat opzetten • put a record ontheewater opzetten • put the kettle on (for tea)3 een zaak opzetten • set up in business, set up shopde campagne was verkeerd opgezet • the campaign was badly planned4 een opgezet exemplaar • a mounted/stuffed specimen5 mensen tegen elkaar opzetten • set/pit people against each other -
124 Biro, Laszlo Joszef (Ladislao José)
SUBJECT AREA: Paper and printing[br]b. 29 September 1899 Budapest, Hungaryd. 24 October 1985 Buenos Aires, Argentina[br]Hungarian inventor of the ballpoint pen.[br]Details of Biro's early life are obscure, but by 1939 he had been active as a painter, a member of the Hungarian Academy of Sciences and an inventor, patenting over thirty minor inventions. During the 1930s he edited a cultural magazine and noticed in the printing shop the advantages of quick-drying ink. He began experimenting with crude ballpoint pens. The idea was not new, for an American, John Loud, had patented a cumbersome form of pen for marking rough surfaces in 1888; it had failed commercially. Biro and his brother Georg patented a ballpoint pen in 1938, although they had not yet perfected a suitable ink or a reservoir to hold it.In 1940 Biro fled the Nazi occupation of Hungary and settled in Argentina. Two years later, he had developed his pen to the point where he could seek backers for a company to exploit it commercially. His principal backer appears to have been an English accountant, Henry George Martin. In 1944 Martin offered the invention to the US Army Air Force and the British Royal Air Force to overcome the problems aircrews were experiencing at high altitudes with leaking fountain pens. Some 10,000 ballpoints were made for the RAF. Licences were granted in the USA for the manufacture of the "biro", and in 1944 the Miles-Martin Pen Company was formed in Britain and began making them on a large scale at a factory near Reading, Berkshire; by 1951 its workforce had grown to over 1,000. Other companies followed suit; by varying details of the pen, they avoided infringing the original patents. One such entrepreneur, Miles Reynolds, was the first to put the pen on sale to the public in New York; it is reputed that 10,000 were sold on the first day.Biro had little taste for commercial exploitation, and by 1947 he had withdrawn from the Argentine company, mainly to resume his painting, in the surrealist style. Examples of his work are exhibited in the Fine Arts Museum in Budapest. He created an instrument that had a greater impact on written communication than any other single invention.[br]Further Reading"Nachruf: Ladislao José Biro (1899–1985)", HistorischeBurowelt (1988) 21:5–8 (with English summary).J.Jewkes, The Sources of Invention, pp. 234–5.LRDBiographical history of technology > Biro, Laszlo Joszef (Ladislao José)
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125 Bullard, Edward Payson
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 18 April 1841 Uxbridge, Massachusetts, USAd. 22 December 1906 Bridgeport, Connecticut, USA[br]American mechanical engineer and machine-tool manufacturer who designed machines for boring.[br]Edward Payson Bullard served his apprenticeship at the Whitin Machine Works, Whitinsville, Massachusetts, and worked at the Colt Armory in Hartford, Connecticut, until 1863; he then entered the employ of Pratt \& Whitney, also in Hartford. He later formed a partnership with J.H.Prest and William Parsons manufacturing millwork and tools, the firm being known as Bullard \& Prest. In 1866 Bullard organized the Norwalk Iron Works Company of Norwalk, Connecticut, but afterwards withdrew and continued the business in Hartford. In 1868 the firm of Bullard \& Prest was dissolved and Bullard became Superintendent of a large machine shop in Athens, Georgia. He later organized the machine tool department of Post \& Co. at Cincinnati, and in 1872 he was made General Superintendent of the Gill Car Works at Columbus, Ohio. In 1875 he established a machinery business in Beekman Street, New York, under the name of Allis, Bullard \& Co. Mr Allis withdrew in 1877, and the Bullard Machine Company was organized.In 1880 Bullard secured entire control of the business and also became owner of the Bridgeport Machine Tool Works, Bridgeport, Connecticut. In 1883 he designed his first vertical boring and turning mill with a single head and belt feed and a 37 in. (94 cm) capacity; this was the first small boring machine designed to do the accurate work previously done on the face plate of a lathe. In 1889 Bullard gave up his New York interests and concentrated his entire attention on manufacturing at Bridgeport, the business being incorporated in 1894 as the Bullard Machine Tool Company. The company specialized in the construction of boring machines, the design being developed so that it became essentially a vertical turret lathe. After Bullard's death, his son Edward Payson Bullard II (b. 10 July 1872 Columbus, Ohio, USA; d. 26 June 1953 Fairfield, Connecticut, USA) continued as head of the company and further developed the boring machine into a vertical multi-spindle automatic lathe which he called the "Mult-au-matic" lathe. Both father and son were members of the American Society of Mechanical Engineers.[br]Further ReadingJ.W.Roe, 1916, English and American Tool Builders, New Haven: Yale University Press; repub. 1926, New York and 1987, Bradley, Ill.: Lindsay Publications Inc. (describes Bullard's machines).RTS -
126 Crookes, Sir William
SUBJECT AREA: Electricity[br]b. 17 June 1832 London, Englandd. 4 April 1919 London, England[br]English chemist and physicist who carried out studies of electrical discharges and cathode rays in rarefied gases, leading to the development of the cathode ray tube; discoverer of the element thallium and the principle of the Crookes radiometer.[br]Crookes entered the Royal College of Chemistry at the age of 15, and from 1850 to 1854 held the appointment of Assistant at the college. In 1854 he became Superintendent of the Meteorological Department at the Radcliffe Observatory in Oxford. He moved to a post at the College of Science in Chester the following year. Soon after this he inherited a large fortune and set up his own private laboratory in London. There he studied the nature of electrical discharges in gases at low pressure and discovered the dark space (later named after him) that surrounds the negative electrode, or cathode. He also established that the rays produced in the process (subsequently shown by J.J.Thompson to be a stream of electrons) not only travelled in straight lines, but were also capable of producing heat and/or light upon impact with suitable anode materials. Using a variety of new methods to investigate these "cathode" rays, he applied them to the spectral analysis of compounds of selenium and, as a result, in 1861 he discovered the element thallium, finally establishing its atomic weight in 1873. Following his discovery of thallium, he became involved in two main lines of research: the properties of rarified gases, and the investigation of the elements of the "rare earths". It was also during these experiments that he discovered the principle of the Crookes radiometer, a device in which light is converted into rotational motion and which used to be found frequently in the shop windows of English opticians. Also among the fruits of this work were the Crookes tubes and the development of spectacle lenses with differential ranges of radiational absorption. In the 1870s he became interested in spiritualism and acquired a reputation for his studies of psychic phenomena, but at the turn of the century he returned to traditional scientific investigations. In 1892 he wrote about the possibility of wireless telegraphy. His work in the field of radioactivity led to the invention of the spinthariscope, an early type of detector of alpha particles. In 1900 he undertook investigations into uranium which led to the study of scintillation, an important tool in the study of radioactivity.While the theoretical basis of his work has not stood the test of time, his material discoveries, observations and investigations of new facts formed a basis on which others such as J.J. Thomson were to develop subatomic theory. His later involvement in the investigation of spiritualism led to much criticism, but could be justified on the basis of a belief in the duty to investigate all phenomena.[br]Principal Honours and DistinctionsKnighted 1897. Order of Merit 1910. FRS 1863. President, Royal Society 1913–15. Honorary LLD Birmingham. Honorary DSc Oxon, Cambridge, Sheffield, Durham, Ireland and Cape of Good Hope.Bibliography1874, On Attraction and Repulsion Resulting from Radiation.1874, "Researches in the phenomenon of spiritualism", Society of Metaphysics; reprinted in facsimile, 1986.For many years he was also Proprietor and Editor of Chemical News.Further ReadingE.E.Fournier D'Albe, 1923, Life of Sir William Crookes. Who Was Who II, 1916–28, London: A. \& C. Black. T.I.Williams, 1969, A Biographical Dictionary of Scientists. See also Braun, Karl Ferdinand.KF / MG -
127 Parsons, Sir Charles Algernon
[br]b. 13 June 1854 London, Englandd. 11 February 1931 on board Duchess of Richmond, Kingston, Jamaica[br]English eingineer, inventor of the steam turbine and developer of the high-speed electric generator.[br]The youngest son of the Earl of Rosse, he came from a family well known in scientific circles, the six boys growing up in an intellectual atmosphere at Birr Castle, the ancestral home in Ireland, where a forge and large workshop were available to them. Charles, like his brothers, did not go to school but was educated by private tutors of the character of Sir Robert Ball, this type of education being interspersed with overseas holiday trips to France, Holland, Belgium and Spain in the family yacht. In 1871, at the age of 17, he went to Trinity College, Dublin, and after two years he went on to St John's College, Cambridge. This was before the Engineering School had opened, and Parsons studied mechanics and mathematics.In 1877 he was apprenticed to W.G.Armstrong \& Co. of Elswick, where he stayed for four years, developing an epicycloidal engine that he had designed while at Cambridge. He then moved to Kitson \& Co. of Leeds, where he went half shares in a small experimental shop working on rocket propulsion for torpedoes.In 1887 he married Katherine Bethell, who contracted rheumatic fever from early-morning outdoor vigils with her husband to watch his torpedo experiments while on their honeymoon! He then moved to a partnership in Clarke, Chapman \& Co. at Gateshead. There he joined the electrical department, initially working on the development of a small, steam-driven marine lighting set. This involved the development of either a low-speed dynamo, for direct coupling to a reciprocating engine, or a high-speed engine, and it was this requirement that started Parsons on the track of the steam turbine. This entailed many problems such as the running of shafts at speeds of up to 40,000 rpm and the design of a DC generator for 18,000 rpm. He took out patents for both the turbine and the generator on 23 April 1884. In 1888 he dissolved his partnership with Clarke, Chapman \& Co. to set up his own firm in Newcastle, leaving his patents with the company's owners. This denied him the use of the axial-flow turbine, so Parsons then designed a radial-flow layout; he later bought back his patents from Clarke, Chapman \& Co. His original patent had included the use of the steam turbine as a means of marine propulsion, and Parsons now set about realizing this possibility. He experimented with 2 ft (61 cm) and 6 ft (183 cm) long models, towed with a fishing line or, later, driven by a twisted rubber cord, through a single-reduction set of spiral gearing.The first trials of the Turbinia took place in 1894 but were disappointing due to cavitation, a little-understood phenomenon at the time. He used an axial-flow turbine of 2,000 shp running at 2,000 rpm. His work resulted in a far greater understanding of the phenomenon of cavitation than had hitherto existed. Land turbines of up to 350 kW (470 hp) had meanwhile been built. Experiments with the Turbinia culminated in a demonstration which took place at the great Naval Review of 1897 at Spithead, held to celebrate Queen Victoria's Diamond Jubilee. Here, the little Turbinia darted in and out of the lines of heavy warships and destroyers, attaining the unheard of speed of 34.5 knots. The following year the Admiralty placed their first order for a turbine-driven ship, and passenger vessels started operation soon after, the first in 1901. By 1906 the Admiralty had moved over to use turbines exclusively. These early turbines had almost all been direct-coupled to the ship's propeller shaft. For optimum performance of both turbine and propeller, Parsons realized that some form of reduction gearing was necessary, which would have to be extremely accurate because of the speeds involved. Parsons's Creep Mechanism of 1912 ensured that any errors in the master wheel would be distributed evenly around the wheel being cut.Parsons was also involved in optical work and had a controlling interest in the firm of Ross Ltd of London and, later, in Sir Howard Grubb \& Sons. He he was an enlightened employer, originating share schemes and other benefits for his employees.[br]Principal Honours and DistinctionsKnighted. Order of Merit 1927.Further ReadingA.T.Bowden, 1966, "Charles Parsons: Purveyor of power", in E.G.Semler (ed.), The Great Masters. Engineering Heritage, Vol. II, London: Institution of Mechanical Engineers/Heinemann.IMcNBiographical history of technology > Parsons, Sir Charles Algernon
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128 Paul, Robert William
[br]b. 3 October 1869 Highbury, London, Englandd. 28 March 1943 London, England[br]English scientific instrument maker, inventor of the Unipivot electrical measuring instrument, and pioneer of cinematography.[br]Paul was educated at the City of London School and Finsbury Technical College. He worked first for a short time in the Bell Telephone Works in Antwerp, Belgium, and then in the electrical instrument shop of Elliott Brothers in the Strand until 1891, when he opened an instrument-making business at 44 Hatton Garden, London. He specialized in the design and manufacture of electrical instruments, including the Ayrton Mather galvanometer. In 1902, with a purpose-built factory, he began large batch production of his instruments. He also opened a factory in New York, where uncalibrated instruments from England were calibrated for American customers. In 1903 Paul introduced the Unipivot galvanometer, in which the coil was supported at the centre of gravity of the moving system on a single pivot. The pivotal friction was less than in a conventional instrument and could be used without accurate levelling, the sensitivity being far beyond that of any pivoted galvanometer then in existence.In 1894 Paul was asked by two entrepreneurs to make copies of Edison's kinetoscope, the pioneering peep-show moving-picture viewer, which had just arrived in London. Discovering that Edison had omitted to patent the machine in England, and observing that there was considerable demand for the machine from show-people, he began production, making six before the end of the year. Altogether, he made about sixty-six units, some of which were exported. Although Edison's machine was not patented, his films were certainly copyrighted, so Paul now needed a cinematographic camera to make new subjects for his customers. Early in 1895 he came into contact with Birt Acres, who was also working on the design of a movie camera. Acres's design was somewhat impractical, but Paul constructed a working model with which Acres filmed the Oxford and Cambridge Boat Race on 30 March, and the Derby at Epsom on 29 May. Paul was unhappy with the inefficient design, and developed a new intermittent mechanism based on the principle of the Maltese cross. Despite having signed a ten-year agreement with Paul, Acres split with him on 12 July 1895, after having unilaterally patented their original camera design on 27 May. By the early weeks of 1896, Paul had developed a projector mechanism that also used the Maltese cross and which he demonstrated at the Finsbury Technical College on 20 February 1896. His Theatrograph was intended for sale, and was shown in a number of venues in London during March, notably at the Alhambra Theatre in Leicester Square. There the renamed Animatographe was used to show, among other subjects, the Derby of 1896, which was won by the Prince of Wales's horse "Persimmon" and the film of which was shown the next day to enthusiastic crowds. The production of films turned out to be quite profitable: in the first year of the business, from March 1896, Paul made a net profit of £12,838 on a capital outlay of about £1,000. By the end of the year there were at least five shows running in London that were using Paul's projectors and screening films made by him or his staff.Paul played a major part in establishing the film business in England through his readiness to sell apparatus at a time when most of his rivals reserved their equipment for sole exploitation. He went on to become a leading producer of films, specializing in trick effects, many of which he pioneered. He was affectionately known in the trade as "Daddy Paul", truly considered to be the "father" of the British film industry. He continued to appreciate fully the possibilities of cinematography for scientific work, and in collaboration with Professor Silvanus P.Thompson films were made to illustrate various phenomena to students.Paul ended his involvement with film making in 1910 to concentrate on his instrument business; on his retirement in 1920, this was amalgamated with the Cambridge Instrument Company. In his will he left shares valued at over £100,000 to form the R.W.Paul Instrument Fund, to be administered by the Institution of Electrical Engineers, of which he had been a member since 1887. The fund was to provide instruments of an unusual nature to assist physical research.[br]Principal Honours and DistinctionsFellow of the Physical Society 1920. Institution of Electrical Engineers Duddell Medal 1938.Bibliography17 March 1903, British patent no. 6,113 (the Unipivot instrument).1931, "Some electrical instruments at the Faraday Centenary Exhibition 1931", Journal of Scientific Instruments 8:337–48.Further ReadingObituary, 1943, Journal of the Institution of Electrical Engineers 90(1):540–1. P.Dunsheath, 1962, A History of Electrical Engineering, London: Faber \& Faber, pp.308–9 (for a brief account of the Unipivot instrument).John Barnes, 1976, The Beginnings of Cinema in Britain, London. Brian Coe, 1981, The History of Movie Photography, London.BC / GW
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shop front — ˈshop front noun [countable] 1. COMMERCE the outside part of a shop that faces the street, usually with a large window; = storefront AmE 2. COMPUTING COMMERCE … Financial and business terms
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