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ORIGINS OF THE MODERN DAY CRANE The principles of operation of today's CRANES is taken for
granted, however, we thought you might be interested in learning a
bit about the history of Cranes and their development into the
modern age of technology. Cranes are lifting machines
equipped with a winder, wire ropes or chains and sheaves that can be
used both to lift and lower materials and to move them horizontally.
Put in basic terms, they use one or more simple machines to create
mechanical advantage to enable the movement of loads beyond the
normal capability of a human. CRANE EQUIPMENT AND RAILWAY CONSTRUCTION DEVELOPMENTAt the start of the eighteenth century
transportation in Europe was still fairly primitive. Although some
European countries had overseas empires transport to and from colonies
was slow by sailing ships. There had been no major road construction
projects since the end of the Roman Empire; roads were little more than
dirt tracks. Frequently it was quicker to transport people, raw
materials, and finished products by river than over land on poor roads. Steam-hauled public railways began with the Stockton and Darlington Railway in 1825 and the Liverpool and Manchester Railway in 1830. Construction of major railways connecting the larger cities and towns began in the 1830s but only gained momentum at the very end of the first Industrial Revolution. The first high pressure steam engine locomotive was developed by Richard Trevithick in 1802; a locomotive using smooth wheels on an iron track could pull cars of freight a few hundred yards.
THE "ROCKET" In 1815, George Stephenson built the prototype of the modern steam locomotive, starting a technological race over the next century to build locomotives with more power at higher steam pressures. Stephenson himself was one of the major innovators. His decisive breakthrough came in 1825 when he built the Stockton and Darlington line, 12 miles long, that proved it was commercially feasible to have a system of usable length. On his first run, his locomotive pulled 38 freight and passenger cars at speeds as high as 12 miles per hour. Stephenson’s “Rocket” was the locomotive for the Liverpool and Manchester line, which opened in 1830. Stephenson went on to design many more railways, and is best known for standardising designs, such as the “standard” gauge of rail spacing, at 4 feet 8 ˝ inches. The first engines used in the United States were purchased from the Stephenson Works in England. Even rails were largely imported from England until the Civil War. Americans who had visited England to see new steam locomotives were impressed that railroads dropped the cost of shipping by carriage by 60 to70%. Thomas
Brassey (7 November 1805 – 8 December 1870) was an English civil
engineering contractor and manufacturer of building materials who was
responsible for building much of the world's railways in the 19th
century. By 1847, he had built about one third of the
railways in Britain, and by time of his death in 1870 he had built one
mile in every 20 miles of railway in the world. This included
three-quarters of the lines in France, major lines in many other
European countries and in Canada, Australia, South America and India. He
also built the structures associated with those railways, including
docks, bridges, viaducts, stations, tunnels and drainage works. Thomas
Brassey wa
The last half of the nineteenth century was a period which experienced rapid progress in science and technology. There were important breakthroughs in iron and steel technology, electricity, weapons, physics and chemistry, sociology, psychology and biology. Numerous projects such as ocean liners with steel hulls, skyscrapers, suspension bridges, (all these required high tensile steel which could be produced in quantity in the Bessemer steel furnace and the open hearth furnace) were undertaken. Many of these constructions required the use of the crane. A railroad crane, (crane car (US) or breakdown crane (UK)) is a type of crane used on a railroad for one of three primary uses: freight handling in goods yards, permanent way (PW) maintenance, and accident recovery work. Although the design differs according to the type of work, the basic configuration is similar in all cases: a rotating crane body is mounted on a sturdy chassis fitted with flanged wheels. The body supports the jib and provides all the lifting and operating mechanisms; on larger cranes, an operator's cabin is usually provided. The chassis is fitted with buffing and coupling gear to allow the crane to be moved by a locomotive, although many are also self-propelled to allow limited movement about a work site. In the early days of the railways, locomotives and rolling stock were small enough to be re-railed manually using jacks and tackle, but as they became bigger and heavier this method became inadequate. Enter into this the steam crane and cable winch. Appearing about 1890, the cranes increased in size, commensurate with the rise of steel Pullman cars, so by 1910 cranes reached their peak of development. Many of these 1910-era cranes were so useful and powerful, that they remained in service until the 1980s. The combination of a quick-firing steam boiler, heavy steam winch, and cable hook could little be improved upon, and thus remained in service. Also, steam engines did not mind being parked for months, with a little care, and were ready to go to work when needed. Referred to by railroad men in the America as the "Big Hook," wrecking cranes were used to lift rolling stock and locomotives back on to the rails after a derailment or wreck. Please refer to the link directly below for more photographs and information regarding wrecking/breakdown cranes.
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