This article is about the English engineer and inventor. See Samuel Brown for other persons of the same name.
Samuel BrownSamuel Brown was an English England ( /ˈɪŋɡlənd/ ) is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west and the North Sea to the east, with the English Channel to the south separating it from continental Europe. Most of England engineer Engineers work to develop economical and safe solutions to practical problems, by applying mathematics and scientific knowledge while considering technical constraints. The term is derived from the Latin root "ingenium," meaning "cleverness". The industrial revolution and continuing technological developments of the last few and inventor An invention is a new composition, device, or process. An invention may be derived from a pre-existing model or idea, or it could be independently conceived in which case it may be a radical breakthrough. In addition, there is cultural invention, which is an innovative set of useful social behaviors adopted by people and passed on to others credited with developing one of the earliest examples of an internal combustion engine The internal combustion engine is an engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine the expansion of the high temperature and pressure gases, which are produced by the combustion, directly applies force to a movable component of the engine, such as the, during the early 19th century.
Brown, a cooper Traditionally, a cooper is someone who makes wooden staved vessels of a conical form, of greater length than breadth, bound together with hoops and possessing flat ends or heads. Examples of a cooper's work include but are not limited to casks, barrels, buckets, tubs, butter churns, hogsheads, firkins, tierces, rundlets, puncheons, pipes, tuns, by training (he also patented improvements to machinery for manufacturing casks and other vessels),[1] has been described as the 'father of the gas engine'. While living at Eagle Lodge in the Brompton Brompton is a locality in the Royal Borough of Kensington and Chelsea. It is roughly defined by the triangle of Brompton Road, Sloane Street and Sloane Avenue area of west London London is the capital of England and the United Kingdom. It is the UK's largest and most populous metropolitan area and the largest urban zone in the European Union by most measures.[citation needed], from 1825 to 1835, he developed 'the first gas engine that unquestionably did actual work and was a mechanical success'. He set up two engines for demonstration purposes in the grounds of the Lodge.[2]
Brown's Gas Vacuum Engine
In patents dated 4 December 1823 and 22 April 1826,[3], Brown proposed to fill a closed chamber with a gas flame, and so expel the air; then he condensed the flame by injecting water, and operated an air engine by exhausting into the partial vacuum so obtained. The idea was evidently suggested by James Watt James Watt, FRS, FRSE was a Scottish inventor and mechanical engineer whose improvements to the Newcomen steam engine were fundamental to the changes brought by the Industrial Revolution in both the Kingdom of Great Britain and the world's condensing steam engine A steam engine is a heat engine that performs mechanical work using steam as its working fluid, flame being employed instead of steam to obtain a vacuum.
Brown later designed an engine that used hydrogen Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an atomic weight of 1.00794 u, hydrogen is the lightest and most abundant chemical element, constituting roughly 75 % of the Universe's elemental mass. Stars in the main sequence are mainly composed of hydrogen in its plasma state. Naturally occurring as a fuel Fuel is any material that is burned or altered to obtain energy and to heat or to move objects. Fuel releases its energy either through a chemical reaction means, such as combustion, or nuclear means, such as nuclear fission or nuclear fusion. An important property of a useful fuel is that its energy can be stored to be released only when needed, -- an early example of an internal combustion engine The internal combustion engine is an engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine the expansion of the high temperature and pressure gases, which are produced by the combustion, directly applies force to a movable component of the engine, such as the. It was based on an old Newcomen steam engine The atmospheric engine invented by Thomas Newcomen in 1712, today referred to as a Newcomen steam engine , was the first practical device to harness the power of steam to produce mechanical work. Newcomen engines were used throughout Britain and Europe, principally to pump water out of mines, starting in the early 18th century. James Watt's later, had a separate combustion Combustion or burning is the sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species. The release of heat can result in the production of light in the form of either glowing or a flame. Fuels of interest often include organic compounds in the gas, liquid or and working cylinders A cylinder is the central working part of a reciprocating engine, the space in which a piston travels. Multiple cylinders are commonly arranged side by side in a bank, or engine block, which is typically cast from aluminum or cast iron before precision features are machined into it. The cylinders may then be lined with sleeves or liners of some, and was cooled by water contained within a casing or cylinder lining, circulated around the cylinders (water was constantly kept moving through the action of a pump and was recooled by contact with outside air).[4] It had a capacity of 8,800 cc but was rated at only 4 hp.[5] He tested the engine by using it to propel a vehicle up Shooter's Hill Shooter's Hill is a place, and an electoral ward in the London Borough of Greenwich in south-east London. It lies east of Blackheath and west of Welling, south of Woolwich and north of Eltham. It is one of the highest points in London on 27 May 1826.[6][7]
- "In 1826, Mr. Samuel Brown applied his gas-vacuum engine ... to a carriage, and ascended Shooter's hill to the satisfaction of numerous spectators. The great expense, however, which attended the working of a gas-vacuum engine, prevented its adoption.[8]
The engine was also employed to pump water and to propel river boats. Brown formed a company to produce engines for boats and barges, one of which is said to have achieved a speed of 8 mph upstream.[9][10] The company was unsuccessful,[11] although this may have been due concerns about obtaining adequate supplies of the gas fuel rather than concerns about the engines[citation needed].
See also
Brown's Gas Vacuum Engine 1823- Timeline of hydrogen technologies Timeline of hydrogen technologies A timeline of the history of hydrogen technology
- History of the internal combustion engine Although various forms of internal combustion engines were developed before the 19th century, application was hindered until the commercial drilling and production of petroleum began in the mid-1850s. By the late 1800s, engineering advances led to widespread adoption in a variety of applications
- The Rev. W. Cecil's Hydrogen Engine, 1820
References
- This article incorporates text from the Encyclopædia Britannica, Eleventh Edition The Encyclopædia Britannica Eleventh Edition is a 29-volume reference work that marked the beginning of the Encyclopædia Britannica's transition from a British to an American publication. Some of its articles were written by the best-known scholars of the day. This edition of the encyclopedia is now in the public domain, but the outdated nature, a publication now in the public domain The public domain is an intellectual property designation for the range of content that is not owned or controlled by anyone. These materials are public property, and available for anyone to use freely for any purpose. The public domain can be defined in contrast to several forms of intellectual property; the public domain in contrast to.
- ^ The Repertory of Patent Inventions: And Other Discoveries and Improvements, 1825, p.439
- ^ From: 'Roland Gardens', Survey of London: volume 41: Brompton (1983), pp. 149-55. URL: http://www.british-history.ac.uk/report.asp?compid=50019. Date accessed: 25 July 2007.
- ^ T. Gill (1826), The Technical repository, p.383
- ^ Engine cooling Summary
- ^ Car History 4U - History of Gas Powered Motorised Vehicles
- ^ Robert Henry Thurston, A History of the Growth of the Steam Engine, p.162
- ^ Greenwich Guide - Greenwich Day by Day - May
- ^ Alexander Gordon (1834), A Treatise Upon Elemental Locomotion and Interior Communication, p.51
- ^ Elijah Galloway and Luke Hebert (1834), History and Progress of the Steam Engine, p.263
- ^ John Ross (1828), A Treatise on Navigation by Steam, p.168
- ^ Cummins - referenced at http://www.mikalac.com/tech/pow/gaspower.html
Categories: English engineers | English inventors Categories: British inventors | English people by occupation
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ue, 04 Nov 2008 08:00:00 GM
In the CarTel project, Professor Hari Balakrishnan and Associate Professor . Samuel. Madden of MIT's Department of Electrical . Engineering. and Computer Science use automobiles to monitor their environment by sending data from an onboard computer which is about the size of a cell phone to a Web . ... Other co-authors were Richard . Brown. , Brendon Lovett and Arzhang Ardavan of Oxford University, and Alexei Tyryshkin, Shyam Shankar and Stephen Lyon, of Princeton, University. ...
