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Topic: George Graham (clockmaker)


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  George Graham - Wikipedia, the free encyclopedia
George Graham (soldier) (1772–1830), interim U.S. Secretary of War
George Graham (footballer) (born 1944), Scottish football soccer player and manager
George Graham (rugby player), with the Scotland national rugby union team and Newcastle Falcons
en.wikipedia.org /wiki/George_Graham   (115 words)

  
 The Galileo Project
Graham's father was a Quaker, but he was reared by a brother who was not.
Graham is known as the preeminent instrument maker of his time, a man of major importance in the development of chronometry.
Graham was actively involved, intellectually as well as professionally as an instrument maker, in establishing the exact shape of the earth by means of precision clocks.
galileo.rice.edu /Catalog/NewFiles/graham.html   (635 words)

  
 Pendulum clock   (Site not responding. Last check: 2007-10-13)
In 1721, George Graham improved the pendulum clock's accuracy to 1 second per day by compensating for changes in the pendulum's length due to temperature variations.
By 1761, he had built a marine chronometer with a spring and balance wheel escapement that won the British government's 1714 prize (worth more than $10,000,000 in today's currency) for a means of determining longitude to within one-half degree after a voyage to the West Indies.
The dead beat escapement, attributed to George Graham, was an improvement over the anchor escapement, as the scape wheel was not moved backward (it remained still, or "dead") during the swing of the pendulum.
bopedia.com /en/wikipedia/p/pe/pendulum_clock.html   (1269 words)

  
 Equation Of Time Clock By George Graham
Since Graham was known for his elaborate pendulums devices which effectively assured superior timekeeping, and since the present pendulum to this clock is old but repaired, we must consider the possibility that the pendulum is not original.
Graham is attributed with numerous mechanical innovations in horology, but many of his better-known ones include those aimed at clocks and precision time keeping.
We think collectors and investors mostly appreciate Graham's clocks for their mechanical superiority and innovativeness, although cases to his standing clocks are distinctive, having unmatched simplistic beauty as well.
www.antiqnet.com /detail,equation-time-clock,912104.html   (1303 words)

  
 Anchor Clock Escapement
In 1715, George Graham (1673-1751) of London is said to have modified the anchor escapement to eliminate recoil, creating the deadbeat escapement, also called the Graham escapement.
Graham modified the arm of each steel pallet so that the lower portion of each limb was based on the arc of a circle with its center at the axis of rotation of the pallets (see Fig.
In the Graham escapement, the teeth lean forward, in the direction of rotation of the escape wheel, to take advantage of the curved locking faces of the pallets and thus achieve no recoil.
www.geocities.com /CapeCanaveral/Hall/3934/anchor.html   (3975 words)

  
 Clocks and Watches - MSN Encarta
The British clockmaker George Graham improved the escapement, and John Harrison developed a means of compensating for variations in the length of a pendulum resulting from changes in temperature.
Such local craft organizations as the Paris Guild of Clockmakers (1544) were organized to control the art of clockmaking and its apprenticeship.
A guild known as the Clockmakers’ Company, founded in London in 1630, is still in existence.
uk.encarta.msn.com /encyclopedia_761577936_2/Clocks_and_Watches.html   (881 words)

  
 Search Results for "Graham"
Charlotte, N.C. Graham was ordained a minister in the Southern Baptist Church...
A clockmaker by trade, Graham designed clocks and watches that earned him membership in the Royal Society and...
Graham, Thomas, 1805-69, Scottish chemist, best known for research in diffusion in both gases and liquids that led to his formulation of Graham's law.
www.bartleby.com /cgi-bin/texis/webinator/sitesearch?FILTER=col65&query=Graham   (247 words)

  
 List of people by name: G - Simple English Wikipedia
Graham, Donald Edward, (born 1945), American newspaper publisher
Graham, Paul, Lisp programmer, author: "On Lisp", "ANSI Common Lisp"
Graham, Sylvester, (1794-1851), self-styled nutritionist and inventor of graham flour and graham crackers
simple.wikipedia.org /wiki/List_of_people_by_name:_G   (150 words)

  
 John Harrison   (Site not responding. Last check: 2007-10-13)
Halley sent him to meet George Graham, the country's foremost horologist (clockmaker).
He must have been impressed with Harrison, for Graham personally loaned him money and told him to build a model of his marine clock.
King George tested H5 himself at the palace and when it had lost only four and a half seconds in ten days he was outraged and raged "By God Harrison, I'll see you righted!", and told Harrison to petition Parliament for the full prize after threatening to appear in person to dress them down.
bopedia.com /en/wikipedia/j/jo/john_harrison.html   (1264 words)

  
 Legend of the Month - Ebel - SKW Shop
Daring in design and yet elegant in appearance, Graham timepieces are distinct in capturing the spirit of exploration and discovery that was ignited by it's namesake over 300 years ago.
He was known as "honest Graham" and refused to patent any of his inventions, as he believed that it was only through collaborative scientific development that horology could be furthered for the benefit of all.
If the Royal Family still wears Graham timekeepers today, it is because the make remains faithful to the tradition of the British watchmakers of the 18th century who presented their creations to the King before marketing them.
www.skw.net /legend/october04.php   (1088 words)

  
 Important equation of time clock by George Graham
Graham’s answer to this was to create a cammed device that rotates once every year.
The solar hand runs on the cam, causing it to accelerate for six months and the decelerate the other six months of the year, all the time being tracked by the elaborate and finely engraved year calendar disk seen in the broke arch area of the clock dial.
"Honest" George Graham was born on a farm in Cumberland, England as early as "mid 17th Century" or 1674.
www.antiqnet.com /detail,important-equation-time,659509.html   (1300 words)

  
 George Graham Clocks and Biography
Of George Graham, apprentice, partner, nephew by marriage, successor, and executor, to Thomas Tompion, much might be written.
Among his inventions was the dead-beat escapement; the application of a compensating power to counteract the effects of heat and cold upon the lengths of a pendulum (1715); and in 1724 he greatly improved the horizontal escapement invented by Tompion.
The cases of many of Graham's watches were works of art, pierced, chased with mythological subjects, ciphers and scrolls, and heavily jewelled.
www.furniturestyles.net /european/english/george-graham.html   (342 words)

  
 Some Longtown Families
George Graham was born about 1675 in Kirklinton, though not much is known about his origins.
In his "Worthies of Cumberland" published in 1875, Henry Lonsdale gives Graham's probable birthdate as 1673, the son of George Graham of Rigg, recorded in the Quaker register, although other sources say he was born at Horsegills in Kirklinton.
John Blaylock (1) was apprenticed to the clockmaker Archibald Lawrie of Carlisle in 1754 for a premium of £10 and on completion of his apprenticeship it is thought he continued in the employment of the Lawrie family until 1767.
mysite.wanadoo-members.co.uk /longtown19/somelongtownfami.html   (1596 words)

  
 Printable Version on Encyclopedia.com
GRAHAM, GEORGE [Graham, George] 1674?-1751, English instrument maker.
A clockmaker by trade, Graham designed clocks and watches that earned him membership in the Royal Society and were still manufactured into the present century.
In 1725 he built a very accurate 8-ft (2.4-m) quadrant for the royal astronomer, Edmund Halley, at Greenwich; it was widely copied.
www.encyclopedia.com /printable.aspx?id=1E1:Graham-G   (83 words)

  
 Tartans.com :: View topic - A seal with a tower   (Site not responding. Last check: 2007-10-13)
She mentioned a letter that a George Graham (1812-1901) had written to someone in her family.
Now,I know this George Graham was born in Kirklinton parish, Horsegill to be exact, in 1675.
She had been to Pitlochry and mentions Killiecrankie glen "..where our ancestor Graham of Claverhouse was killed." She goes on to say this branch of the Grahams settled in Border Country and lost their estates when they rose for Prince Charlie.
www.tartans.com /mesgboard/viewtopic.php?p=94390   (1110 words)

  
 Graham, George on Encyclopedia.com   (Site not responding. Last check: 2007-10-13)
Interview: George Graham - I'm ready for top challenge, says the man who'd love to be managing Arsen...
I was ejected like a common criminal - GEORGE GRAHAM; I could have become bitter and twisted..
Team Graham: It all began as a shoebox operation; Christian entrepreneur George Wilson became the force behind the Billy Graham Evangelical Association in Minneapolis and was one of the main reasons that the headquarters has remained here.(NEWS)
www.encyclopedia.com /html/g/graham-g1.asp   (478 words)

  
 Chapter 5.1 - BILLY GRAHAM
They were trying to determine for their study whether Billy Graham has had an impact on all the Presidents from Eisenhower to Clinton, This study was not pro or anti Graham, It was simply trying to determine what impact this religious leader is having on political leaders.
The book for counselors at the Billy Graham Crusade here in Portland specifically stated that only Billy Graham was allowed to proselytize, that the crusade counselors were forbidden to proselytize anyone at any time during the crusade, or else they would lose their Crusade badge as a counselor.
Billy Graham made him a prominent person in his crusade and said he was a "classic example" of a mass evangelism conversion, If that is a good example of Graham’s conversions, we Christians should shudder.
www.bibliotecapleyades.net /sociopolitica/mindcontrol/Chapter05.1.htm   (12935 words)

  
 George Graham (clockmaker) - Storage   (Site not responding. Last check: 2007-10-13)
Expanding their market and making more sales way that George Graham (clockmaker) traders have over street front stores George Graham (clockmaker) establishments is the lower costs since of operating online.
Among the pleasant advantages in using electronic commerce by the George Graham (clockmaker) retailers have over ancient fashioned George Graham (clockmaker) organizations is that they can reach a global market for minimum expenditure.
The obvious advantages to the George Graham (clockmaker) retailers have over ancient fashioned George Graham (clockmaker) organizations is the authority to constantly reshape their office to the needs of their customers.
storage.best-resource-links-15.info /Special:Random/George_Graham_(clockmaker)   (963 words)

  
 George Graham (clockmaker) - Nissan   (Site not responding. Last check: 2007-10-13)
Evan Edwards, the Tredegar clockmaker and James Godwin, the mason from Brynmawr,...
Our George Graham (clockmaker) web location is expanding quickly so we have not much managed to lay up all of our vast database of support, however what we have done so far is researched the too best George Graham (clockmaker) sites on the net.
Perhaps the major assistance that net based George Graham (clockmaker) dealers will always have over their store-front competitors George Graham (clockmaker) organizations is that they are able to constitute speedy responses to changes.
nissan.best-resource-links-25.info /1713/George_Graham_(clockmaker)   (923 words)

  
 Clocks and Watches - Printer-friendly - MSN Encarta
At first a cottage industry, with families manufacturing watch parts at home, to be assembled and sold by a master watchmaker, Swiss watchmaking by the 1850s had led to the development of a number of small factories and the foundation of a major industry.
European clockmakers and watchmakers took their skills to colonial America and originated much of the mechanical ingenuity that has distinguished American industry.
In 1650, before the introduction of the pendulum clock, a clock could be found in a Boston church tower.
uk.encarta.msn.com /text_761577936___6/Clocks_and_Watches.html   (1164 words)

  
 George Graham - TheBestLinks.com - United States Secretary of War, George Graham (footballer), Disambig, George Graham ...   (Site not responding. Last check: 2007-10-13)
George Graham - TheBestLinks.com - United States Secretary of War, George Graham (footballer), Disambig, George Graham (clockmaker),...
George Graham, United States Secretary of War, George Graham (footballer)...
George Graham (governor) 18th century governor of Newfoundland
www.thebestlinks.com /George_Graham.html   (151 words)

  
 File 8 - 1700-1750 - Merchants and Bankers Listings   (Site not responding. Last check: 2007-10-13)
This George Campbell was associated as a banker with a firm, Campbell and Carr.
One George Sydenham was a chaplain to Henry VIII.
George Hankey (b.1815) sp: Caroline Donovan wife1 (m.1838) sp: Katherine Selina Ardill wife2 6.
www.danbyrnes.com.au /merchants/merchants8.htm   (16354 words)

  
 Timekeeping History
In 1670 English clockmaker William Clement made use of a pendulum about a yard long that took a full second to move back and forth, allowing greater accuracy than ever before.
He encased the pendulum and weights in wood in order to diminish the effect of air currents, thus was born the "grandfather's clock." For the first time, it made sense to add a minute hand to the dial, since it was now possible to measure time to the nearest second.
In 1721George Graham improved the pendulum clock’s accuracy to within a second a day by compensating for changes in the pendulum's length caused by temperature variations.
www.beaglesoft.com /maintimehistory.htm   (2540 words)

  
 K-MODDL > Tutorials > Reuleaux Triangle   (Site not responding. Last check: 2007-10-13)
This watch was made for George III and had two unique features: it was able to compensate for changes in temperature, but, more importantly, it contained Mudge’s invention of the lever escapement.
Mudge believed that he would never be able to construct another watch as perfect as this one, due to the difficulty of constructing the lever escapement, but the advantages derived from this new escapement were so overwhelming that the lever escapement became the standard construct for most watches by the turn of the century.
This watch was also influential in George III’s decision to appoint Mudge as the royal Clockmaker in 1776.
kmoddl.library.cornell.edu /biographies/Mudge/index.php   (492 words)

  
 Dinner with David Walter: Australian Clockmaker in California   (Site not responding. Last check: 2007-10-13)
Clockmakers are not worse than watchmakers, it's just two separate fields.
Certainly in the past, Thomas Thompion, George Graham, John Harrison, Breguet, Berthoud and so on, all made clocks and watches and there was no distinction of one better than the other.
George Daniels has made clocks and no one berates him as being a failed watchmaker for example.
www.tp178.com /jd/Walters-Champage-Dinner/talk.html   (4761 words)

  
 English Clockmakers, Antique English Clock Makers
Some of the most famous English clockmakers prior to 1700 were: Bartholomew Newsam, who was established in London from 1568 to 1593; Rainulph Bull, keeper of His Majesty's great clock in 1617; Ferdinando Garrett, a working clockmaker, in 1600; William North, in 1615; Thomas Alcock, in 1661; and Daniel Ramsay, in 1610.
The Clockmakers' Company was chartered in 1631 and was a trade guild for protecting the trade in London, or within ten miles thereof.
Edward East, one the most noted of English makers, was at work by 1620, and became watchmaker to Charles I. Henry Jones was at the height of his fame about 1673, and Samuel Betts about 1640.
www.furniturestyles.net /european/english/clockmakers.html   (188 words)

  
 O4R:  Book Review: Persistence and Genius   (Site not responding. Last check: 2007-10-13)
The Board convened for the first time in 1737 to evaluate a timepiece presented by clockmaker John Harrison.
The Reverend Nevil Maskelyne, appointed the fifth astronomer royal in 1765 (and therefore on the Board of Longitude) was not only committed to the lunar distance method, but had aspirations for developing that method.
Harrison, who probably qualified for the prize in 1735, required the intervention of King George III to receive his monetary reward in 1773.
www.o4r.org /pf_v3n4/Persistence.htm   (1401 words)

  
 KMODDL - Kinematic Models for Design Digital Library   (Site not responding. Last check: 2007-10-13)
This escapement is a variation of the anchor deadbeat escapement of George Graham, who was a partner of the famous English clockmaker, Thomas Tompion (See discussion for X2).
The anchor escapement of Robert Hooke and William Clement (c.1675) had a recoil due to the impact of the anchor pallets with the teeth in the escape wheel.
Graham designed the teeth and pallets to eliminate the recoil vibrations.
www.library.cornell.edu /kmoddl-test/model.php?m=203   (93 words)

  
 Clocks and Watches - Search View - MSN Encarta
Some modern Swiss watchworks are tiny enough to fit into pencil ends or in earrings.
European clockmakers and watchmakers brought their skills and mechanical ingenuity to colonial America.
In 1650, before the introduction of the pendulum clock, a clock could be found in a Boston, Massachusetts, church tower.
encarta.msn.com /text_761577936__1/Clocks_and_Watches.html   (2647 words)

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