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1 locomotive
[ˌləʊkə'məʊtɪv] 1.nome locomotiva f.2.1) [ muscle] locomotore2) [ power] locomotivo* * *[ləukə'moutiv](a railway engine.) locomotiva* * *locomotive /ləʊkəˈməʊtɪv/A n.1 (ferr.) locomotiva; locomotore: electric locomotive, elettromotrice; diesel-electric locomotive, motrice diesel2 (biol.) animale capace di locomozioneB a.1 (tecn.) locomotivo; semovente● (ferr.) locomotive crane, gru (ferroviaria) semovente □ a locomotive engine, una locomotiva □ (ferr.) locomotive gradient, pendenza massima superabile □ (fisiol., zool.) the locomotive organs, l'apparato locomotore.* * *[ˌləʊkə'məʊtɪv] 1.nome locomotiva f.2.1) [ muscle] locomotore2) [ power] locomotivo -
2 Hedley, William
[br]b. 13 July 1779 Newburn, Northumberland, Englandd. 9 January 1843 Lanchester, Co. Durham, England[br]English coal-mine manager, pioneer in the construction and use of steam locomotives.[br]The Wylam wagonway passed Newburn, and Hedley, who went to school at Wylam, must have been familiar with this wagonway from childhood. It had been built c.1748 to carry coal from Wylam Colliery to the navigable limit of the Tyne at Lemington. In 1805 Hedley was appointed viewer, or manager, of Wylam Colliery by Christopher Blackett, who had inherited the colliery and wagonway in 1800. Unlike most Tyneside wagonways, the gradient of the Wylam line was insufficient for loaded wagons to run down by gravity and they had to be hauled by horses. Blackett had a locomotive, of the type designed by Richard Trevithick, built at Gateshead as early as 1804 but did not take delivery, probably because his wooden track was not strong enough. In 1808 Blackett and Hedley relaid the wagonway with plate rails of the type promoted by Benjamin Outram, and in 1812, following successful introduction of locomotives at Middleton by John Blenkinsop, Blackett asked Hedley to investigate the feasibility of locomotives at Wylam. The expense of re-laying with rack rails was unwelcome, and Hedley experimented to find out the relationship between the weight of a locomotive and the load it could move relying on its adhesion weight alone. He used first a model test carriage, which survives at the Science Museum, London, and then used a full-sized test carriage laden with weights in varying quantities and propelled by men turning handles. Having apparently satisfied himself on this point, he had a locomotive incorporating the frames and wheels of the test carriage built. The work was done at Wylam by Thomas Waters, who was familiar with the 1804 locomotive, Timothy Hackworth, foreman smith, and Jonathan Forster, enginewright. This locomotive, with cast-iron boiler and single cylinder, was unsatisfactory: Hackworth and Forster then built another locomotive to Hedley's design, with a wrought-iron return-tube boiler, two vertical external cylinders and drive via overhead beams through pinions to the two axles. This locomotive probably came into use in the spring of 1814: it performed well and further examples of the type were built. Their axle loading, however, was too great for the track and from about 1815 each locomotive was mounted on two four-wheeled bogies, the bogie having recently been invented by William Chapman. Hedley eventually left Wylam in 1827 to devote himself to other colliery interests. He supported the construction of the Clarence Railway, opened in 1833, and sent his coal over it in trains hauled by his own locomotives. Two of his Wylam locomotives survive— Puffing Billy at the Science Museum, London, and Wylam Dilly at the Royal Museum of Scotland, Edinburgh—though how much of these is original and how much dates from the period 1827–32, when the Wylam line was re-laid with edge rails and the locomotives reverted to four wheels (with flanges), is a matter of mild controversy.[br]Further ReadingP.R.B.Brooks, 1980, William Hedley Locomotive Pioneer, Newcastle upon Tyne: Tyne \& Wear Industrial Monuments Trust (a good recent short biography of Hedley, with bibliography).R.Young, 1975, Timothy Hackworth and the Locomotive, Shildon: Shildon "Stockton \& Darlington Railway" Silver Jubilee Committee; orig. pub. 1923, London.C.R.Warn, 1976, Waggonways and Early Railways of Northumberland, Newcastle upon Tyne: Frank Graham.See also: Stephenson, GeorgePJGR -
3 Marsh, Sylvester
[br]b. 30 September 1803 Campton, New Hampshire, USAd. 30 December 1884 Concord, New Hampshire, USA[br]American pioneer of mountain rack railways.[br]Marsh, a businessman whose interests successively included packing pork and dealing in corn, was inspired by a rack railway built in 1847 up the 1 in 16.5 Jefferson incline, Indiana, to design and build a line to the 6,293 ft (1,918 m) summit of Mount Washington, New Hampshire. The gradient averaged 1 in 4 and Marsh installed a rack made from wrought iron with rungs fastened between upright bearers that were deep enough for the teeth of a locomotive's driving pinion to engage with two rungs at a time; counter-pressure brakes controlled a locomotive's descent. The Mount Washington Cog Railway was the first mountain rack railway: it opened in 1869 and even now continues to operate with steam locomotives.[br]BibliographyMarsh took out four US patents relating to rack railways between 1861 and 1870.Further ReadingO.J.Morris, 1951, The Snowdon Mountain Railway, Shepperton: Ian Allan. P.B.Whitehouse, J.B.Snell and J.B.Hollingsworth, 1978, Steam for Pleasure, London: Routledge \& Kegan Paul.J.R.Day and B.C.Wilson, 1957, Unusual Railways, F.Muller.See also: Riggenbach, NiklausPJGR -
4 Spooner, Charles Easton
[br]b. 1818 Maentwrog, Merioneth (now Gwynedd), Walesd. 18 November 1889 Portmadoc (now Porthmadog), Wales[br]English engineer, pioneer of narrow-gauge steam railways.[br]At the age of 16 Charles Spooner helped his father, James, to build the Festiniog Railway, a horse-and-gravity tramroad; they maintained an even gradient and kept costs down by following a sinuous course along Welsh mountainsides and using a very narrow gauge. This was probably originally 2 ft 1 in. (63.5 cm) from rail centre to rail centre; with the introduction of heavier, and therefore wider, rails the gauge between them was reduced and was eventually standardized at 1 ft 11 1/2 in (60 cm). After James Spooner's death in 1856 Charles Spooner became Manager and Engineer of the Festiniog Railway and sought to introduce steam locomotives. Widening the gauge was impracticable, but there was no precedent for operating a public railway of such narrow gauge by steam. Much of the design work for locomotives for the Festiniog Railway was the responsibility of C.M.Holland, and many possible types were considered: eventually, in 1863, two very small 0–4–0 tank locomotives, with tenders for coal, were built by George England.These locomotives were successful, after initial problems had been overcome, and a passenger train service was introduced in 1865 with equal success. The potential for economical operation offered by such a railway attracted widespread attention, the more so because it had been effectively illegal to build new passenger railways in Britain to other than standard gauge since the Gauge of Railways Act of 1846.Spooner progressively improved the track, alignment, signalling and rolling stock of the Festiniog Railway and developed it from a tramroad to a miniaturized main line. Increasing traffic led to the introduction in 1869 of the 0–4–4–0 double-Fairlie locomotive Little Wonder, built to the patent of Robert Fairlie. This proved more powerful than two 0–4–0s and impressive demonstrations were given to engineers from many parts of the world, leading to the widespread adoption of narrow-gauge railways. Spooner himself favoured a gauge of 2 ft 6 in. (76 cm) or 2 ft 9 in. (84 cm). Comparison of the economy of narrow gauges with the inconvenience of a break of gauge at junctions with wider gauges did, however, become a continuing controversy, which limited the adoption of narrow gauges in Britain.Bogie coaches had long been used in North America but were introduced to Britain by Spooner in 1872, when he had two such coaches built for the Festiniog Railway. Both of these and one of its original locomotives, though much rebuilt, remain in service.Spooner, despite some serious illnesses, remained Manager of the Festiniog Railway until his death.[br]Bibliography1869, jointly with G.A.Huddart, British patent no. 1,487 (improved fishplates). 1869, British patent no. 2,896 (rail-bending machinery).1871, Narrow Gauge Railways, E. \& F.N.Spon (includes his description of the Festiniog Railway, reports of locomotive trials and his proposals for narrow-gauge railways).Further ReadingJ.I.C.Boyd, 1975, The Festiniog Railway, Blandford: Oakwood Press; C.E.Lee, 1945, Narrow-Gauge Railways in North Wales, The Railway Publishing Co. (both give good descriptions of Spooner and the Festiniog Railway).C.Hamilton Ellis, 1965, Railway Carriages in the British Isles, London: George Allen \& Unwin, pp. 181–3. Pihl, Carl Abraham.PJGRBiographical history of technology > Spooner, Charles Easton
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5 electric
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