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Pinchbeck Engine

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A beam engine is a type of steam engine where a pivoted overhead beam is used to apply the force from a vertical piston to a vertical connecting rod . This configuration, with the engine directly driving a pump, was first used by Thomas Newcomen around 1705 to remove water from mines in Cornwall . The efficiency of the engines was improved by engineers including James Watt , who added a separate condenser ; Jonathan Hornblower and Arthur Woolf , who compounded the cylinders ; and William McNaught , who devised a method of compounding an existing engine. Beam engines were first used to pump water out of mines or into canals but could be used to pump water to supplement the flow for a waterwheel powering a mill .

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38-617: The Pinchbeck Engine is a drainage engine, a rotative beam engine built in 1833 to drain Pinchbeck Marsh, to the north of Spalding , Lincolnshire , in England. Until it was shut down in 1952, the engine discharged into the Blue Gowt which joins the River Glen at Surfleet Seas End. In 1952 the engine was rendered obsolete by modern electric pumps and stood forgotten until being opened to

76-513: A Baptist lay preacher by calling. He was born in Dartmouth , in Devon , England, to a merchant family and baptised at St. Saviour's Church on 28 February 1664. In those days, flooding in coal and tin mines was a major problem. Newcomen was soon engaged in trying to improve ways to pump out the water from such mines. His ironmonger's business specialised in designing, manufacturing and selling tools for

114-420: A compound engine were not significant at pressures under 60 pounds per square inch (410 kPa), but showed at over 100 psi (690 kPa). Thomas Newcomen Thomas Newcomen ( / ˈ nj uː k ʌ m ə n / ; February 1664 – 5 August 1729) was an English inventor who created the atmospheric engine , the first practical fuel-burning engine in 1712. He was an ironmonger by trade and

152-403: A condenser in the normal way. The first experiment with compounding was conducted by Jonathan Hornblower , who took out a patent in 1781. His first engine was installed at Tincroft Mine, Cornwall. It had two cylinders – one 21-inch (0.53 m) diameter with 6-foot (1.8 m) stroke and one 27-inch (0.69 m) diameter with 8-foot (2.4 m) stroke – placed alongside each other at one end of

190-499: A high-pressure cylinder, on the opposite side of the beam to the existing single cylinder, where the water pump was normally fitted. This had two important effects: it massively reduced the pressure on the beam, and the connecting steam pipe, being long, acted as an expansive receiver – the element missing in the Woolf design. This modification could be made retrospectively, and engines so modified were said to be "McNaughted". The advantages of

228-430: A large wooden beam rocked upon a central fulcrum . On the other side of the beam was a chain attached to a pump at the base of the mine. As the steam cylinder was refilled with steam, readying it for the next power stroke , water was drawn into the pump cylinder and expelled into a pipe to the surface by the weight of the machinery. Newcomen and his partner John Calley built the first successful engine of this type at

266-481: A nearby goods facility. They were then transported on a very short narrow gauge railway line in colliery-style tubs. The motive power for this appears to have been human. One of the tubs and a metre or so of line is displayed at the museum. The engine is said to be the earliest 'A'-frame engine still in situ , the longest-working beam engine in the Fens, and the last in use. Beam engine The rotative beam engine

304-404: A rotative beam engine, the piston is mounted vertically, and the piston rod drives the beam as before. A connecting rod from the other end of the beam, rather than driving a pump rod, now drives a flywheel. Early Watt engines used Watt's patent sun and planet gear , rather than a simple crank, as use of the latter was protected by a patent owned by James Pickard . Once the patent had expired,

342-638: A single cylinder of 35 inches (89 cm) bore and 56 inches (1.42 m) stroke. The flywheel is 18 feet 6 inches (5.64 m) in diameter. The engine ran at up to 30 rpm. The engine is gear-coupled to a single scoop wheel in an adjacent compartment. There are 40 paddles around the circumference of the 22-foot (6.71 m) wheel, which could lift a maximum of 7,500 imperial gallons (34,000 L) of water per minute through an 8-foot (2.44 m) lift. The annual effort varied between 1,093,000 long tons (1,111,000  t ) tons of water lifted, and 3,690,000 long tons (3,749,000  t ). Typically

380-500: A steam engine for the purpose of lifting water out of a tin mine. It is likely that Newcomen was already acquainted with Savery, whose forebears were merchants in south Devon . Savery also had a post with the Commissioners for Sick and Hurt Seamen , which took him to Dartmouth. Savery had devised a "fire engine", a kind of thermic syphon , in which steam was admitted to an empty container and then condensed. The vacuum thus created

418-402: Is a later design of beam engine where the connecting rod drives a flywheel by means of a crank (or, historically, by means of a sun and planet gear ). These beam engines could be used to directly power the line-shafting in a mill . They also could be used to power steam ships . The first beam engines were water-powered and used to pump water from mines. A preserved example may be seen at

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456-740: The Science Museum, London , England and the Ford Museum , Dearborn, Michigan US, amongst other places. In 1964, the Newcomen Society of London arranged for a Newcomen engine at Hawkesbury Junction , Warwickshire to be transferred to Dartmouth, where it can be seen working using a hydraulic arrangement instead of the steam boiler. According to Dr. Cyril Boucher of the Newcomen Society, this Newcomen Memorial Engine dates from about 1725, with new valve gear and other parts added later. Perhaps

494-626: The Society of Apothecaries in London. That society formed a company which had a monopoly on supplying medicines to the Navy providing a close link with Savery, whose will he witnessed. The Committee of the Proprietors also included Edward Wallin, a Baptist of Swedish descent; and pastor of a church at Maze Pond, Southwark . Newcomen died at Wallin's house in 1729, and was buried at Bunhill Fields burial ground on

532-645: The Conygree Coalworks near Dudley in the West Midlands. A working replica of this engine can be seen at the Black Country Living Museum nearby. Comparatively little is known of Newcomen's later life. After 1715, the engine affairs were conducted through an unincorporated company, the ' Proprietors of the Invention for Raising Water by Fire '. Its secretary and treasurer was John Meres, clerk to

570-708: The Straitsteps Lead Mine in Wanlockhead in Scotland . Beam engines were extensively used to power pumps on the English canal system when it was expanded by means of locks early in the Industrial Revolution , and also to drain water from mines in the same period, and as winding engines . The first steam-related beam engine was developed by Thomas Newcomen . This was not, strictly speaking, steam powered, as

608-568: The UK and mainland Europe. At first brass cylinders were used, but these were expensive and limited in size. New iron casting techniques pioneered by the Coalbrookdale Company in the 1720s allowed bigger cylinders to be used, up to about 6 feet (1.8 m) in diameter by the 1760s. Experience led to better construction and minor refinements in layout. Its mechanical details were much improved by John Smeaton , who built many large engines of this type in

646-402: The beam. The early engines showed little performance gain: the steam pressure was too low, interconnecting pipes were of small diameter and the condenser ineffective. At this time the laws of thermodynamics were not adequately understood, particularly the concept of absolute zero . Engineers such as Arthur Woolf were trying to tackle an engineering problem with an imperfect understanding of

684-452: The draining of the deep mines that existed there. Consequently, the Cornish beam engines became world-famous, as they remain among the most massive beam engines ever constructed. Because of the number of patents on various parts of the engines and the consequences of patent infringements, examples exist of Beam Engines with no makers name on any of the parts ( Hollycombe Steam Collection ). In

722-406: The early 1770s; his improvements were rapidly adopted. By 1775, about 600 Newcomen engines had been built, although many of these had worn out before then, and been abandoned or replaced. The Newcomen Engine was by no means an efficient machine, although it was probably as complicated as engineering and materials techniques of the early 18th century could support. Much heat was lost when condensing

760-456: The engine was operated for around 180 days a year and an engine man was permanently retained, living on the site. The boiler dates from 1895 and is a twin furnace Lancashire boiler , delivering 12 psi (83 kPa). It consumed around 1  cwt (51 kg) of coal per hour. Coal supplies were originally brought by barge, but after the land was successfully drained a railway line was laid from Spalding to Boston, and coals were delivered to

798-579: The last Newcomen-style engine to be used commercially – and the last still remaining on its original site – is at the Elsecar Heritage Centre , near Barnsley in South Yorkshire . It was restored to working condition between 2012 and 2015, the refurbished engine was unveiled by Prince Edward, Earl of Wessex , in May 2016. Another Newcomen engine that can be shown working is the modern replica engine at

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836-460: The main inefficiencies of the Newcomen engine in his Watt steam engine by the addition of a separate condenser, thus allowing the cylinder to remain hot. Technically this was still an atmospheric engine until (under subsequent patents) he enclosed the upper part of the cylinder, introducing steam to also push the piston down. This made it a true steam engine and arguably confirms him as the inventor of

874-403: The mining industry. Thomas Newcomen was a lay preacher and a teaching elder in the local Baptist church. After 1710, he became the pastor of a local group of Baptists. His father had been one of a group who brought the well-known Puritan minister John Flavel to Dartmouth. Later one of Newcomen's business contacts in London, Edward Wallin, was another Baptist minister who had connections with

912-417: The original land-based machines by locating the beam or beams in different positions to take up less room on board ship. Compounding involves two or more cylinders; low-pressure steam from the first, high-pressure, cylinder is passed to the second cylinder where it expands further and provides more drive. This is the compound effect; the waste steam from this can produce further work if it is then passed into

950-911: The outskirts of the City of London ; the exact site of his grave is unknown. By 1733, about 125 Newcomen engines, operating under Savery's patent (extended by statute so that it did not expire until 1733), had been installed by Newcomen and others in most of the important mining districts of Britain and on the Continent of Europe: draining coal mines in the Black Country , Warwickshire and near Newcastle upon Tyne ; at tin and copper mines in Cornwall ; and in lead mines in Flintshire and Derbyshire , amongst other places. The Newcomen engine held its place without material change for about 75 years, spreading gradually to more areas of

988-593: The period of Watt's patent (up to 1800), as they were cheaper and less complicated. Of over 2,200 engines built in the 18th century, only about 450 were Watt engines. Elements of Watt's design, especially the Separate Condenser, were incorporated in many "pirate" engines. Even after 1800 Newcomen type engines continued to be built and condensers were added routinely to these. They were also commonly retro-fitted to existing Newcomen engines (the so-called "pickle-pot" condenser). There are examples of Newcomen engines in

1026-513: The physics. In particular, their valve gear was cutting-in at the wrong position in the stroke, not allowing for expansive working in the cylinder. Successful Woolf compound engines were produced in 1814, for the Wheal Abraham copper mine and the Wheal Vor tin mine. William McNaught patented a compound beam engine in 1845. On a beam engine of the standard Boulton & Watt design he placed

1064-475: The public as a museum in 1979. The coal store was cleared and now houses the associated Museum of Land Drainage. The museum complex includes the blacksmith's shop, still in its original condition. The museum is operated by the Welland and Deepings Internal Drainage Board , successors to the commissioners who erected the engine. The buildings are Grade II listed and also a Scheduled Ancient Monument . The chimney

1102-518: The simple crank was employed universally. Once rotary motion had been achieved a drive belt could be attached beside the flywheel. This transmitted the power to other drive shafts and from these other belts could then be attached to power a variety of static machinery e.g. threshing, grinding or milling machines. The first steam-powered ships used variants of the rotative beam engine. These marine steam engines – known as side-lever, grasshopper , crosshead, or 'walking beam', among others – all varied from

1140-477: The single power stroke produced a jerky motion, but use of flywheels and better engineering largely overcame these problems. By 1800, hundreds of non-Watt rotary engines had been built, especially in collieries and ironworks where irregular motion was not a problem but also in textile mills. Despite Watt's improvements, Common Engines (as they were then known) remained in use for a considerable time, and many more Newcomen engines than Watt ones were built even during

1178-414: The steam engine. He also patented the centrifugal governor and the parallel motion . the latter allowed the replacement of chains round an arch head and thus allowed its use as a rotative engine. His patents remained in place until the start of the 19th Century and some say that this held back development. However, in reality development had been ongoing by others and at the end of the patent period there

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1216-415: The steam introduced below the piston was condensed to create a partial vacuum thus allowing atmospheric pressure to push down the piston. It was therefore called an Atmospheric Engine. The Newcomen atmospheric engine was adopted by many mines in Cornwall and elsewhere, but it was relatively inefficient and consumed a large quantity of fuel. The engine was improved by John Smeaton but James Watt resolved

1254-621: The steam was condensed in a separate condenser. The Watt steam engine , aided by better engineering techniques including Wilkinson's boring machine, was much more fuel efficient, enabling Watt and his partner Matthew Boulton to collect substantial royalties based on the fuel saved. Watt subsequently made other improvements, including the double-acting engine, where both the up and down strokes were power strokes. These were especially suitable for driving textile mills, and many Watt engines were employed in these industries. At first attempts to drive machinery by Newcomen engines had mixed success, as

1292-455: The steam, as this cooled the cylinder. This did not matter unduly at a colliery, where unsaleable small coal (slack) was available, but significantly increased the mining costs where coal was not readily available, as in Cornwall. Newcomen's engine was gradually replaced after 1775 in areas where coal was expensive (especially in Cornwall ) by an improved design, invented by James Watt , in which

1330-462: The well-known Doctor John Gill of Horsleydown, Southwark . Newcomen's connection with the Baptist church at Bromsgrove materially aided the spread of his steam engine, as the engineers Jonathan Hornblower Sr. and his son were involved in the same church. Newcomen's great achievement was his steam engine , developed around 1712; combining the ideas of Thomas Savery and Denis Papin , he created

1368-453: Was an explosion of new ideas and improvements. Watt's beam engines were used commercially in much larger numbers and many continued to run for 100 years or more. Watt held patents on key aspects of his engine's design, but his rotative engine was equally restricted by James Pickard 's patent of the simple crank. The beam engine went on to be considerably improved and enlarged in the tin- and copper-rich areas of south west England, which enabled

1406-481: Was demolished in 1952, and no actions were taken to preserve the boiler, which is no longer in a fit state to be used. The engine is a static exhibit, which can be rotated by an electric motor for demonstration purposes. The engine is a 20 horsepower (15  kW ) condensing steam engine with an overhead beam supported by an 'A'-frame. It was built by the Butterley Company of Ripley, Derbyshire . It has

1444-421: Was used to suck water from the sump at the bottom of the mine. The "fire engine" was not very effective and could not work beyond a limited depth of around thirty feet. Newcomen replaced the receiving vessel (where the steam was condensed) with a cylinder containing a piston based on Papin's design. Instead of the vacuum drawing in water, it drew down the piston. This was used to work a beam engine , in which

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