while instead

spasere

spasertur

subst. \/wɔːk\/

1) gåtur, spasertur, fottur, gåing

• it is a good walk

• it is only ten minutes' walk

2) gangsti, gangvei, vandrerute

3) allé

4) runde, rute

• do you know the postman's walk?

5) skogsdistrikt, skogvokterdistrikt

6) livsstilling, samfunnsklasse, samfunnslag

• the walk of society he belongs to

7) yrke(sområde)

8) hønsegård

9) ( sport) kappgang

• did she finish the 20 km. walk?

10) gange, gåstil

• I know him by his walk

11) skrittgang, sakte gange

12) ( overført) område, spesialitet, (spesiell) del

• other walks of science are more fascinating

• this walk of literature is interesting

• he has no particular walk

13) (gammeldags, spesielt for sau) beitemark

14) ( gammeldags) livsførsel, levnet

15) ( baseball) forklaring: fremrykking til første base

16) ( spesielt britisk) forklaring: farm der jakthundevalper blir sendt til dressur

at a walk i skrittgange, gående

go (out) for a walk ta seg en spasertur

in a walk ( overført) lekende lett, med letthet

• she won in a walk

take a walk ta seg en spasertur

• I took her (out) for a walk

• he's taking the dog (out) for a walk

take a walk! stikk av!

walk of life livsstilling, samfunnsklasse, samfunnslag

• I know people in all walks of life

yrke(sområde)

• they found every walk of life closed to them

win in a walk (amer.) vinne med letthet

verb \/wɔːk\/

1) gå (til fots), spasere, promenere, flanere

• we walked instead of taking the bus

• let's walk in the park

• I have walked this district

• she's walking the deck

2) ( hverdagslig) følge, ledsage, gå med

• I walked a girl home

3) hjelpe med å gå, lede, ta med på en gåtur

• they were walking him round the room after his operation

• she's walking her dog

4) (amer., hverdagslig) forsvinne, trekke seg

5) ( om hest) gå i skritt, skritte, mosjonere

• horses should be walked for a while after a race

6) ( om rytter) ri i skritt

7) ( om spøkelse e.l.) gå igjen, spøke

8) ( basketball) begå skrittfeil

9) ( om slagmann i baseball) gå til første base (etter fire ugyldige kast fra kasteren)

10) (bibelsk, overført) vandre, leve

• he walks in darkness

11) (amer., hverdagslig) gå fri, bli frikjent

12) ( slang) krepere

13) tvinge (til å gå) med, slepe, trekke, manøvrere, styre

• they walked her into jail

• he walked the ball into the net

14) ( om hundevalper) oppfostre, dressere

15) ( om ting) forsvinne, bli borte (vanligvis for å antyde at noe er stjålet)

learn to walk before one can run man må lære å krype før man kan lære å gå

take a walk stikk av!

walk about gå omkring (i), spasere

• she walks about the town

walk away gå sin vei, forsvinne ( overført) dra av sted

walk away from distansere seg fra

walk away with something\/somebody ( hverdagslig) dra av sted med noe\/noen, kvarte, hjemføre

• someone has walked away with the silver

• he walked away with the first prize

• the new actor walked away with the show

walk down gå for fort, gjøre (noen) trett

• you're walking me down

walk free gå fri, bli frikjent

walk in gå inn, stige på

walk in on somebody komme inn uanmeldt til noen, komme inn til noen uten å banke på

walk into gå inn i ( hverdagslig) havne i

• he just walked into the job

• they didn't walk into the trap

( hverdagslig) gå løs på, skjelle ut

• he walked into us as if it had been our fault

( hverdagslig) gjøre innhugg i, kaste seg over

• he walked into the meat-pie

walk it ( hverdagslig) gå (til fots), traske (og gå)

• he had to walk it

( slang) vinne lett

walk Matilda (austr., hverdagslig) gå på loffen

walk off gå sin vei, forsvinne gå av seg

• he tried to walk off a headache

føre bort, lede bort, dra med seg

• the police walked him off to the station

(amer.) skritte opp

• did you walk off the distance?

walk off with dra av sted med

walk on gå på, gå videre, fremover ( teater) spille en statistrolle, opptre som statist

walk on air være i den syvende himmel

• I felt I was walking on air

walk on eggshells være svært forsiktig med hva en sier eller gjør

walk one's chalks ( slang) fordufte, stikke av

walk one's legs off gå seg i senk

• you are walking me off my legs\/feet

walk one's talk (spesielt amer.) gjøre som en sier, følge opp ord med handling

walk out gå ut, gå ut og spasere ta med seg ut (på en spasertur) gå i streik trekke seg fra (i protest), reise fra (plutselig)

( ved beiling) gå tur

walk out (together) ( hverdagslig) holde sammen, omgås

walk out on ( hverdagslig) reise fra, forlate, svikte

• they walked out on the meeting

• he has walked out on his girlfriend

walk out with (gammeldags, spesielt dialekt) omgås, gå ut med

• she's walking out with her boss

walk (all) over gå over (hverdagslig, overført) trampe på, overkjøre

• don't let her walk (all) over you

( sport) vinne på walkover, vinne lett

walk over the course vinne en lett seier

walk round ( hverdagslig) gå rundt, unngå

walk tall ( hverdagslig) være stolt, gå med hevet hode

walk the boards stå på scenen, være ved teateret, være skuespiller

walk the chalk balansere på en krittstrek (som prøve på at man er edru) gjøre som man blir fortalt, holde seg på matten

walk the dog gå tur med hunden

walk the earth vandre (her) på jorden

walk the hospitals ( hverdagslig) ha sykehustjeneste studere medisin

walk the narrow way gå den smale veien

walk the plank (sjøfart, historisk) gå planken

walk the round gå runden

walk the streets gå omkring i gatene ( om prostituert) trekke på gaten

walk the waves gå på vannet

• Christ walked the waves

walk up gå opp(over) gå frem, gå bort stige på føre oppover

walk up to gå frem til

walk with gå med, følge med

walk with God ( bibelsk) gå med Gud, leve i gudfryktighet

1)

а) тянуть, тащить

б) натягивать, растягивать

в) тянуть, иметь тягу

г) присасывать, притягивать

2) грести, идти на вёслах; плыть ( о лодке с гребцами)

3) дёргать; выдёргивать, вытаскивать; уст. вырывать, выщипывать

4) растягивать, разрывать

5) рвать, собирать, убирать (цветы, фрукты и т. п.)

6) разг. устраивать облаву

7) спорт.

а) отбивать мяч влево ( в крикете)

б) делать удар, после которого мяч летит левее цели ( в гольфе)

8)

а) разг. украсть, стянуть, стащить

б) забрать, конфисковать (что-л.), лишить (чего-л.)

9) амер. быть ответственным (за что-л.), выполнять (какие-л. обязанности); облагаться (какими-л. обязательствами)

10)

а) наброситься, накинуться (на что-л., особенно на еду); ухватиться (за что-л.)

б) заглатывать, пить большими глотками

в) затягиваться, делать затяжку (особенно о человеке, курящем трубку)

11)

а) уезжать (откуда-л.)

б) ( pull into) приезжать, прибывать

12) амер.; разг.

а) оказывать протекцию (кому-л.), покровительствовать

б) ( pull for) симпатизировать (кому-л.), поддерживать, подбадривать (какую-л. сторону); болеть за (какую-л. команду)

13) ( pull through) разг.

а) спастись от ( опасности); преодолеть ( трудности)

б) спасти (кого-л.), вытащить (кого-л. из трудной ситуации)

14) разг. зарабатывать ( на жизнь), получать жалование

•

- pull about

- pull over

- pull round

••

- pull smb.'s leg

1)

а) тяга, дёрганье, рывок

б) натяжение, растяжение

в) тянущая сила

2) тяга (поток воздуха; деталь печи)

3) влечение; привлекательность

4) напряжение, усилие

5) затяжка ( при курении); глоток

6)

а) гребля, удар весла

б) прогулка на лодке

7) шнурок, ручка ( звонка)

8) амер.; разг. блат, протекция, связи

9) разг. преимущество

10) трудный участок дороги

peer-to-peer: a means of optimizing the networking capabilities of the Internet among groups of computers. Effectively it puts every computer on an equal footing, in that each can be both a publisher and consumer of information. The traditional model on the Web is the client-server one: the client is a computer that is able only to receive information; the server, on the other hand, publishes information on a Web site. Peer-to-peer makes a computer both a server and a client. Perhaps the best-known example of peer-to-peer is Napster, which enabled person A to search for and download music from person B’s computer, while person B could search for and download music from person A’s computer.

     There are several options for the use of peer-to-peer technologies. Information/ content: where the content on your computer becomes accessible to everyone else in the peer-to-peer environment, and vice versa. Processing sharing: where computers with spare processing capacity network together in order to combine resources. Using a large number of computers, this can create very significant processing capabilities. Services: a computer user can offer services to other people in the peer-to-peer network. File sharing: if person A downloads a file from a central server (an e-learning course from the Internet, for example), other people can use it from person A’s machine instead of having to download it again, significantly reducing strain on bandwidth.

     The main problem with peer-to-peer is the issue of security, and therefore it is essential to authenticate users. Many peer-to-peer interactions also use encryption, which ensures that the communication is secure as it is being passed from computer to computer.

SUBJECT AREA: Textiles

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The condenser method of spinning was developed chiefly by manufacturers and machine makers in eastern Massachusetts between 1824 and 1826. John Goulding, a machinist from Dedham in Massachusetts, combined the ring doffer, patented by Ezekiel Hale in 1825, and the revolving twist tube, patented by George Danforth in 1824; with the addition of twisting keys in the tubes, the carded woollen sliver could be divided and then completely and continuously twisted. He divided the carded web longitudinally with the ring doffer and twisted these strips to consolidate them into slubbings. The dividing was carried out by covering the periphery of the doffer cylinder with separate rings of card clothing and spacing these rings apart by rings of leather, so that instead of width-way detached strips leaving the card, the strips were continuous and did not require piecing. The strips were passed through rotating tubes and wound on bobbins, and although the twist was false it sufficed to compress the fibres together ready for spinning. Goulding patented his invention in both Britain and the USA in 1826, but while his condensers were very successful and within twenty years had been adopted by a high proportion of woollen mills in America, they were not adopted in Britain until much later. Goulding also worked on other improvements to woollen machinery: he developed friction drums, on which the spools of roving from the condenser cards were placed to help transform the woollen jenny into the woollen mule or jack.

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SUBJECT AREA: Chemical technology

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Haber's father was a manufacturer of dyestuffs, so he studied organic chemistry at Berlin and Heidelberg universities to equip him to enter his father's firm. But his interest turned to physical chemistry and remained there throughout his life. He became Assistant at the Technische Hochschule in Karlsruhe in 1894; his first work there was on pyrolysis and electrochemistry, and he published his Grundrisse der technischen Electrochemie in 1898. Haber became famous for thorough and illuminating theoretical studies in areas of growing practical importance. He rose through the academic ranks and was appointed a full professor in 1906. In 1912 he was also appointed Director of the Institute of Physical Chemistry and Electrochemistry at Dahlem, outside Berlin.

Early in the twentieth century Haber invented a process for the synthesis of ammonia. The English chemist and physicist Sir William Crookes (1832–1919) had warned of the danger of mass hunger because the deposits of Chilean nitrate were becoming exhausted and nitrogenous fertilizers would not suffice for the world's growing population. A solution lay in the use of the nitrogen in the air, and the efforts of chemists centred on ways of converting it to usable nitrate. Haber was aware of contemporary work on the fixation of nitrogen by the cyanamide and arc processes, but in 1904 he turned to the study of ammonia formation from its elements, nitrogen and hydrogen. During 1907–9 Haber found that the yield of ammonia reached an industrially viable level if the reaction took place under a pressure of 150–200 atmospheres and a temperature of 600°C (1,112° F) in the presence of a suitable catalyst—first osmium, later uranium. He devised an apparatus in which a mixture of the gases was pumped through a converter, in which the ammonia formed was withdrawn while the unchanged gases were recirculated. By 1913, Haber's collaborator, Carl Bosch had succeeded in raising this laboratory process to the industrial scale. It was the first successful high-pressure industrial chemical process, and solved the nitrogen problem. The outbreak of the First World War directed the work of the institute in Dahlem to military purposes, and Haber was placed in charge of chemical warfare. In this capacity, he developed poisonous gases as well as the means of defence against them, such as gas masks. The synthetic-ammonia process was diverted to produce nitric acid for explosives. The great benefits and achievement of the Haber-Bosch process were recognized by the award in 1919 of the Nobel Prize in Chemistry, but on account of Haber's association with chemical warfare, British, French and American scientists denounced the award; this only added to the sense of bitterness he already felt at his country's defeat in the war. He concentrated on the theoretical studies for which he was renowned, in particular on pyrolysis and autoxidation, and both the Karlsruhe and the Dahlem laboratories became international centres for discussion and research in physical chemistry.

With the Nazi takeover in 1933, Haber found that, as a Jew, he was relegated to second-class status. He did not see why he should appoint staff on account of their grandmothers instead of their ability, so he resigned his posts and went into exile. For some months he accepted hospitality in Cambridge, but he was on his way to a new post in what is now Israel when he died suddenly in Basel, Switzerland.

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SUBJECT AREA: Textiles

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John Kay was the youngest of five sons of a yeoman farmer of Walmersley, near Bury, Lancashire, who died before his birth. John was apprenticed to a reedmaker, and just before he was 21 he married a daughter of John Hall of Bury and carried on his trade in that town until 1733. It is possible that his first patent, taken out in 1730, was connected with this business because it was for an engine that made mohair thread for tailors and twisted and dressed thread; such thread could have been used to bind up the reeds used in looms. He also improved the reeds by making them from metal instead of cane strips so they lasted much longer and could be made to be much finer. His next patent in 1733, was a double one. One part of it was for a batting machine to remove dust from wool by beating it with sticks, but the patent is better known for its description of the flying shuttle. Kay placed boxes to receive the shuttle at either end of the reed or sley. Across the open top of these boxes was a metal rod along which a picking peg could slide and drive the shuttle out across the loom. The pegs at each end were connected by strings to a stick that was held in the right hand of the weaver and which jerked the shuttle out of the box. The shuttle had wheels to make it "fly" across the warp more easily, and ran on a shuttle race to support and guide it. Not only was weaving speeded up, but the weaver could produce broader cloth without any aid from a second person. This invention was later adapted for the power loom. Kay moved to Colchester and entered into partnership with a baymaker named Solomon Smith and a year later was joined by William Carter of Ballingdon, Essex. His shuttle was received with considerable hostility in both Lancashire and Essex, but it was probably more his charge of 15 shillings a year for its use that roused the antagonism. From 1737 he was much involved with lawsuits to try and protect his patent, particularly the part that specified the method of winding the thread onto a fixed bobbin in the shuttle. In 1738 Kay patented a windmill for working pumps and an improved chain pump, but neither of these seems to have been successful. In 1745, with Joseph Stell of Keighley, he patented a narrow fabric loom that could be worked by power; this type may have been employed by Gartside in Manchester soon afterwards. It was probably through failure to protect his patent rights that Kay moved to France, where he arrived penniless in 1747. He went to the Dutch firm of Daniel Scalongne, woollen manufacturers, in Abbeville. The company helped him to apply for a French patent for his shuttle, but Kay wanted the exorbitant sum of £10,000. There was much discussion and eventually Kay set up a workshop in Paris, where he received a pension of 2,500 livres. However, he was to face the same problems as in England with weavers copying his shuttle without permission. In 1754 he produced two machines for making card clothing: one pierced holes in the leather, while the other cut and sharpened the wires. These were later improved by his son, Robert Kay. Kay returned to England briefly, but was back in France in 1758. He was involved with machines to card both cotton and wool and tried again to obtain support from the French Government. He was still involved with developing textile machines in 1779, when he was 75, but he must have died soon afterwards. As an inventor Kay was a genius of the first rank, but he was vain, obstinate and suspicious and was destitute of business qualities.

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SUBJECT AREA: Textiles

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Little is known about the early life of Robert Kay except that he may have moved to France with his father, John Kay of Bury in 1747 but must have returned to England and their home town of Bury soon after. He may have been involved with his father in the production of a machine for making the wire covering for hand cards to prepare cotton for spinning. However, John Aikin, writing in 1795, implies that this was a recent invention. Kay's machine could pierce the holes in the leather backing, cut off a length of wire, bend it and insert it through the holes, row after row, in one operation by a person turning a shaft. The machine preserved in the Science Museum, in London's South Kensington, is more likely to be one of Robert's machine than his father's, for Robert carried on business as a cardmaker in Bury from 1791 until his death in 1801. The flying shuttle, invented by his father, does not seem to have been much used by weavers of cotton until Robert invented the drop box in 1760. Instead of a single box at the end of the sley, Robert usually put two, but sometimes three or four, one above another; the boxes could be raised or lowered. Shuttles with either different colours or different types of weft could be put in the boxes and the weaver could select any one by manipulating levers with the left hand while working the picking stick with the right to drive the appropriate shuttle across the loom. Since the selection could be made without the weaver having to pick up a shuttle and place it in the lath, this invention helped to speed up weaving, especially of multi-coloured checks, which formed a large part of the Lancashire output.

Between 1760 and 1763 Robert Kay may have written a pamphlet describing the invention of the flying shuttle and the attack on his father, pointing out how much his father had suffered and that there had been no redress. In February 1764 he brought to the notice of the Society of Arts an improvement he had made to the flying shuttle by substituting brass for wood, which enabled a larger spool to be carried.

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SUBJECT AREA: Chemical technology

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Mansfield, the son of a country clergyman, was educated privately at first, then at Winchester College and at Cambridge; ill health, which dogged his early years, delayed his graduation until 1846. He was first inclined to medicine, but after settling in London, chemistry seemed to him to offer the true basis of the grand scheme of knowledge he aimed to establish. After completing the chemistry course at the Royal College of Chemistry in London, he followed the suggestion of its first director, A.W.von Hofmann, of investigating the chemistry of coal tar. This work led to a result of great importance for industry by demonstrating the valuable substances that could be extracted from coal tar. Mansfield obtained pure benzene, and toluene by a process for which he was granted a patent in 1848 and published in the Chemical Society's journal the same year The following year he published a pamphlet on the applications of benzene.

Blessed with a private income, Mansfield had no need to support himself by following a regular profession. He was therefore able to spread his brilliant talents in several directions instead of confining them to a single interest. During the period of unrest in 1848, he engaged in social work with a particular concern to improve sanitation. In 1850, a description of a balloon machine in Paris led him to study aeronautics for a while, which bore fruit in an influential book, Aerial Navigation (London, 1851). He then visited Paraguay, making a characteristically thorough and illuminating study of conditions there. Upon his return to London in 1853, Mansfield resumed his chemical studies, especially on salts. He published his results in 1855 as Theory of Salts, his most important contribution to chemical theory.

Mansfield was in the process of preparing specimens of benzene for the Paris Exhibition of 1855 when a naphtha still overflowed and caught fire. In carrying it to a place of safety, Mansfield sustained injuries which unfortunately proved fatal.

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SUBJECT AREA: Chemical technology

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Monro's whole family background is engineering, an interest he did not share. Instead, he preferred biology, an enthusiasm aroused by reading the celebrated Science of Life by H.G. and G.P.Wells and Julian Huxley. Educated at a London comprehensive school, Monro found it necessary to attend evening classes while at school to take his advanced level science examinations. Lacking parental support, he could not pursue a degree course until he was 21 years old, and so he gained valuable practical experience as a research technician. He resumed his studies and took a zoology degree at Portsmouth Polytechnic. He then worked in a range of zoology and medical laboratories, culminating after twelve years as a Senior Experimental Officer at Southampton Medical School. In 1989 he relinquished his post to devote himself fall time to developing his inventions as Managing Director of Hampshire Advisory and Technical Services Ltd (HATS). Also in 1988 he obtained his PhD from Southampton University, in the field of embryology.

Monro had meanwhile been demonstrating a talent for invention, mainly in microscopy. His most important invention, however, is of a water-purification system. The idea for it came from Michael Wilson of the Institute of Dental Surgery in London, who evolved a technique for osmotic production of sterile oral rehydration solutions, of particular use in treating infants suffering from diarrhoea in third-world countries. Monro broadened the original concept to include dried food, intravenous solutions and even dried blood. The process uses simple equipment and no external power and works as follows: a dry sugar/salts mixture is sealed in one compartment of a double bag, the common wall of which is a semipermeable membrane. Impure water is placed in the empty compartment and the water transfers across the membrane by the osmotic force of the sugar/salts. As the pores in the membrane exclude all viruses, bacteria and their toxins, a sterile solution is produced.

With the help of a research fellowship granted for humanitarian reasons at King Alfred College, Winchester, the invention was developed to functional prototype stage in 1993, with worldwide patent protection. Commercial production was expected to follow, if sufficient financial backing were forthcoming. The process is not intended to replace large installations, but will revolutionize the small-scale production of sterile water in scattered third-world communities and in disaster areas where normal services have been disrupted.

HATS was awarded First Prize in the small business category and was overall prize winner in the Toshiba Year of Invention, received a NatWest/BP award for technology and a Prince of Wales Award for Innovation.

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SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering

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Morland was one of several sons of the Revd Thomas Morland and was probably initially educated by his father. He went to Winchester School from 1639 to 1644 and then to Magdalene College, Cambridge, where he graduated BA in 1648 and MA in 1652. He was appointed a tutor there in 1650. In 1653 he went to Sweden in the ambassadorial staff of Bulstrode Whitelocke and remained there until 1654. In that year he was appointed Clerk to Mr Secretary Thurloe, and in 1655 he was accredited by Oliver Cromwell to the Duke of Savoy to appeal for the Waldenses. In 1657 he married Susanne de Milleville of Boissy, France, with whom he had three children. In 1660 he went over to the Royalists, meeting King Charles at Breda, Holland. On 20 May, the King knighted him, creating him baron, for revealing a conspiracy against the king's life. He was also granted a pension of£500 per year. In 1661, at the age of 36, he decided to devote himself to mathematics and invention. He devised a mechanical calculator, probably based on the pattern of Blaise Pascal, for adding and subtracting: this was followed in 1666 by one for multiplying and other functions. A Perpetual Calendar or Almanack followed; he toyed with the idea of a "gunpowder engine" for raising water; he developed a range of speaking trum-pets, said to have a range of 1/2 to 1 mile (0.8–1.6 km) or more; also iron stoves for use on board ships, and improvements to barometers.

By 1675 he had started selling a range of pumps for private houses, for mines or deep wells, for ships, for emptying ponds or draining low ground as well as to quench fire or wet the sails of ships. The pumps cost from £5 to £63, and the great novelty was that he used, instead of packing around the cylinder sealing against the bore of the cylinder, a neck-gland or seal around the outside diameter of the piston or piston-rod. This revolutionary step avoided the necessity of accurately boring the cylinder, replacing it with the need to machine accurately the outside diameter of the piston or rod, a much easier operation. Twenty-seven variations of size and materials were included in his schedule of'Pumps or Water Engines of Isaac Thompson of Great Russel Street', the maker of Morland's design. In 1681 the King made him "Magister mechanicorum", or Master of Machines. In that year he sailed for France to advise Louis XIV on the waterworks being built at Marly to supply the Palace of Versailles. About this time he had shown King Charles plans for a pumping engine "worked by fire alone". He petitioned for a patent for this, but did not pursue the matter.

In 1692 he went blind. In all, he married five times. While working for Cromwell he became an expert in ciphers, in opening sealed letters and in their rapid copying.

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SUBJECT AREA: Land transport, Mechanical, pneumatic and hydraulic engineering, Railways and locomotives, Steam and internal combustion engines

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Matthew Murray was apprenticed at the age of 14 to a blacksmith who probably also did millwrighting work. He then worked as a journeyman mechanic at Stockton-on-Tees, where he had experience with machinery for a flax mill at Darlington. Trade in the Stockton area became slack in 1788 and Murray sought work in Leeds, where he was employed by John Marshall, who owned a flax mill at Adel, located about 5 miles (8 km) from Leeds. He soon became Marshall's chief mechanic, and when in 1790 a new mill was built in the Holbeck district of Leeds by Marshall and his partner Benyon, Murray was responsible for the installation of the machinery. At about this time he took out two patents relating to improvements in textile machinery.

In 1795 he left Marshall's employment and, in partnership with David Wood (1761– 1820), established a general engineering and millwrighting business at Mill Green, Holbeck. In the following year the firm moved to a larger site at Water Lane, Holbeck, and additional capital was provided by two new partners, James Fenton (1754–1834) and William Lister (1796–1811). Lister was a sleeping partner and the firm was known as Fenton, Murray \& Wood and was organized so that Fenton kept the accounts, Wood was the administrator and took charge of the workshops, while Murray provided the technical expertise. The factory was extended in 1802 by the construction of a fitting shop of circular form, after which the establishment became known as the "Round Foundry".

In addition to textile machinery, the firm soon began the manufacture of machine tools and steam-engines. In this field it became a serious rival to Boulton \& Watt, who privately acknowledged Murray's superior craftsmanship, particularly in foundry work, and resorted to some industrial espionage to discover details of his techniques. Murray obtained patents for improvements in steam engines in 1799, 1801 and 1802. These included automatic regulation of draught, a mechanical stoker and his short-D slide valve. The patent of 1801 was successfully opposed by Boulton \& Watt. An important contribution of Murray to the development of the steam engine was the use of a bedplate so that the engine became a compact, self-contained unit instead of separate components built into an en-gine-house.

Murray was one of the first, if not the very first, to build machine tools for sale. However, this was not the case with the planing machine, which he is said to have invented to produce flat surfaces for his slide valves. Rather than being patented, this machine was kept secret, although it was apparently in use before 1814.

In 1812 Murray was engaged by John Blenkinsop (1783–1831) to build locomotives for his rack railway from Middleton Colliery to Leeds (about 3 1/2 miles or 5.6 km). Murray was responsible for their design and they were fitted with two double-acting cylinders and cranks at right angles, an important step in the development of the steam locomotive. About six of these locomotives were built for the Middleton and other colliery railways and some were in use for over twenty years. Murray also supplied engines for many early steamboats. In addition, he built some hydraulic machinery and in 1814 patented a hydraulic press for baling cloth.

Murray's son-in-law, Richard Jackson, later became a partner in the firm, which was then styled Fenton, Murray \& Jackson. The firm went out of business in 1843.

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SUBJECT AREA: Textiles

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The earliest patent for using a jet of air to propel a shuttle across a loom was granted to J.C. Brooks in 1914. A different method was tried by E.H.Ballou in 1929, but the really important patent was taken out by Max Pääbo, a refugee from Estonia. He exhibited his machine in Sweden in 1951, weaving cotton cloth 80 cm (31 1/2 in.) wide at a speed of 350 picks per minute, but it was not widely publicized until 1954. One shown in Manchester in 1958 ran at 410 picks per minute while weaving 90 cm (35 1/2 in.) cloth. His looms were called "Maxbo" after him. They had no shuttle; instead a jet of air drove a measured amount of weft drawn from a supply package across the warp threads. Efficient control of the airstream was the main reason for its success; not only was weaving much quicker, but it was also much quieter than traditional methods, and as the warp was nearly vertical the looms took up little space. Manufacture of these looms in Sweden ceased in 1962, but development continued in other countries.

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SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering, Weapons and armour

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Francis A.Pratt served an apprenticeship as a machinist with Warren Aldrich, and on completing it in 1848 he entered the Gloucester Machine Works as a journeyman machinist. From 1852 to 1854 he worked at the Colt Armory in Hartford, Connecticut, where he met his future partner, Amos Whitney. He then became Superintendent of the Phoenix Iron Works, also at Hartford and run by George S.Lincoln \& Company. While there he designed the well-known "Lincoln" miller, which was first produced in 1855. This was a development of the milling machine built by Robbins \& Lawrence and designed by F.W. Howe, and incorporated a screw drive for the table instead of the rack and pinion used in the earlier machine.

Whitney also moved to the Phoenix Iron Works, and in 1860 the two men started in a small way doing machine work on their own account. In 1862 they took a third partner, Monroe Stannard, and enlarged their workshop. The business continued to expand, but Pratt and Whitney remained at the Phoenix Iron Works until 1864 and in the following year they built their first new factory. The Pratt \& Whitney Company was incorporated in 1869 with a capital of $350,000, F.A.Pratt being elected President. The firm specialized in making machine tools and tools particularly for the armament industry. In the 1870s Pratt made no less than ten trips to Europe gaining orders for equipping armouries in many different countries. Pratt \& Whitney was one of the leading firms developing the system of interchangeable manufacture which led to the need to establish national standards of measurement. The Rogers-Bond Comparator, developed with the backing of Pratt \& Whitney, played an important part in the establishment of these standards, which formed the basis of the gauges of many various types made by the firm. Pratt remained President of the company until 1898, after which he served as their Consulting Engineer for a short time before retiring from professional life. He was granted a number of patents relating to machine tools. He was a founder member of the American Society of Mechanical Engineers in 1880 and was elected a vice-president in 1881. He was an alderman of the city of Hartford.

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SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering, Photography, film and optics, Public utilities

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While he was attending the Military School at Mannheim, Reichenbach drew attention to himself due to the mathematical instruments that he had designed. On the recommendation of Count Rumford in Munich, the Bavarian government financed a two-year stay in Britain so that Reichenbach could become acquainted with modern mechanical engineering. He returned to Mannheim in 1793, and during the Napoleonic Wars he was involved in the manufacture of arms. In Munich, where he was in the service of the Bavarian state from 1796, he started producing precision instruments in his own time. His basic invention was the design of a dividing machine for circles, produced at the end of the eighteenth century. The astronomic and geodetic instruments he produced excelled all the others for their precision. His telescopes in particular, being perfect in use and of solid construction, soon brought him an international reputation. They were manufactured at the MathematicMechanical Institute, which he had jointly founded with Joseph Utzschneider and Joseph Liebherr in 1804 and which became a renowned training establishment. The glasses and lenses were produced by Joseph Fraunhofer who joined the company in 1807.

In the same year he was put in charge of the technical reorganization of the salt-works at Reichenhall. After he had finished the brine-transport line from Reichenhall to Traunstein in 1810, he started on the one from Berchtesgaden to Reichenhall which was an extremely difficult task because of the mountainous area that had to be crossed. As water was the only source of energy available he decided to use water-column engines for pumping the brine in the pipes of both lines. Such devices had been in use for pumping purposes in different mining areas since the middle of the eighteenth century. Reichenbach knew about the one constructed by Joseph Karl Hell in Slovakia, which in principle had just been a simple piston-pump driven by water which did not work satisfactorily. Instead he constructed a really effective double-action water-column engine; this was a short time after Richard Trevithick had constructed a similar machine in England. For the second line he improved the system and built a single-action pump. All the parts of it were made of metal, which made them easy to produce, and the pumps proved to be extremely reliable, working for over 100 years.

At the official opening of the line in 1817 the Bavarian king rewarded him generously. He remained in the state's service, becoming head of the department for roads and waterways in 1820, and he contributed to the development of Bavarian industry as well as the public infrastructure in many ways as a result of his mechanical skill and his innovative engineering mind.

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SUBJECT AREA: Civil engineering, Mechanical, pneumatic and hydraulic engineering, Steam and internal combustion engines

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As a boy, Smeaton showed mechanical ability, making for himself a number of tools and models. This practical skill was backed by a sound education, probably at Leeds Grammar School. At the age of 16 he entered his father's office; he seemed set to follow his father's profession in the law. In 1742 he went to London to continue his legal studies, but he preferred instead, with his father's reluctant permission, to set up as a scientific instrument maker and dealer and opened a shop of his own in 1748. About this time he began attending meetings of the Royal Society and presented several papers on instruments and mechanical subjects, being elected a Fellow in 1753. His interests were turning towards engineering but were informed by scientific principles grounded in careful and accurate observation.

In 1755 the second Eddystone lighthouse, on a reef some 14 miles (23 km) off the English coast at Plymouth, was destroyed by fire. The President of the Royal Society was consulted as to a suitable engineer to undertake the task of constructing a new one, and he unhesitatingly suggested Smeaton. Work began in 1756 and was completed in three years to produce the first great wave-swept stone lighthouse. It was constructed of Portland stone blocks, shaped and pegged both together and to the base rock, and bonded by hydraulic cement, scientifically developed by Smeaton. It withstood the storms of the English Channel for over a century, but by 1876 erosion of the rock had weakened the structure and a replacement had to be built. The upper portion of Smeaton's lighthouse was re-erected on a suitable base on Plymouth Hoe, leaving the original base portion on the reef as a memorial to the engineer.

The Eddystone lighthouse made Smeaton's reputation and from then on he was constantly in demand as a consultant in all kinds of engineering projects. He carried out a number himself, notably the 38 mile (61 km) long Forth and Clyde canal with thirty-nine locks, begun in 1768 but for financial reasons not completed until 1790. In 1774 he took charge of the Ramsgate Harbour works.

On the mechanical side, Smeaton undertook a systematic study of water-and windmills, to determine the design and construction to achieve the greatest power output. This work issued forth as the paper "An experimental enquiry concerning the natural powers of water and wind to turn mills" and exerted a considerable influence on mill design during the early part of the Industrial Revolution. Between 1753 and 1790 Smeaton constructed no fewer than forty-four mills.

Meanwhile, in 1756 he had returned to Austhorpe, which continued to be his home base for the rest of his life. In 1767, as a result of the disappointing performance of an engine he had been involved with at New River Head, Islington, London, Smeaton began his important study of the steam-engine. Smeaton was the first to apply scientific principles to the steam-engine and achieved the most notable improvements in its efficiency since its invention by Newcomen, until its radical overhaul by James Watt. To compare the performance of engines quantitatively, he introduced the concept of "duty", i.e. the weight of water that could be raised 1 ft (30 cm) while burning one bushel (84 lb or 38 kg) of coal. The first engine to embody his improvements was erected at Long Benton colliery in Northumberland in 1772, with a duty of 9.45 million pounds, compared to the best figure obtained previously of 7.44 million pounds. One source of heat loss he attributed to inaccurate boring of the cylinder, which he was able to improve through his close association with Carron Ironworks near Falkirk, Scotland.

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SUBJECT AREA: Paper and printing

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Wedgwood was descended from Thomas Wedgwood, the father of Josiah Wedgwood, the founder of the famous pottery firm. In 1806, he patented an apparatus for making copies of handwritten documents, Wedgwood's Stylographic Writer. It was originally developed with the intention of helping the blind to write and had a metal stylus instead of a quill pen: a piece of paper that had been soaked in printer's ink and then dried was placed between two sheets of paper, and wires placed across the page guided the stylus in the hand of the blind writer.

A few years later Wedgwood developed this apparatus into a way of making a copy of a letter at the time of writing. He used impregnated paper, which he called carbonic or carbonated paper, the first known reference to carbon paper. It was placed between a sheet of good quality writing paper and one of thin, transparent paper. By writing with the stylus on the thin paper, a good copy appeared on the lower sheet, while a reverse copy appeared on the underside of the other, which could be read right way round through the transparent paper. In its final form, the Manifold Stylographic Writer was put on sale, elegantly presented between marbled covers. Eventually a company was established to make and sell the writer, and by 1818 it was in the name of Wedgwood's son, R.Wedgwood Jun. of Rathbone Place, Oxford Street, London. Many of the writers were sold, although they never came into general use in offices, which preferred battalions of Dickensian Bob Cratchits armed with quill pens. Wedgwood himself did not share in the family prosperity, for his pathetic letters to his daughter show that he had to hawk his apparatus to raise the price of his next meal.

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