graham+escapement

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• Escapement — redirects here. For the fisheries term for the stock surviving fishing pressures over a spawning cycle, see Spawn (biology). For other uses, see Escapement (disambiguation). A deadbeat escapement, used in many pendulum clocks. Click above to see… …   Wikipedia

• Graham, George — ▪ British watchmaker born c. 1674, Horsgill, Cumberland, Eng. died Nov. 20, 1751, London       eminent English watchmaker and scientific instrument maker.       Graham was apprenticed to a London watchmaker and came to the notice of the renowned… …   Universalium

• Anchor escapement — Anchor escapement. The anchor and escape wheel of a late 19th century clock …   Wikipedia

• George Graham (clockmaker) — George Graham (1674? 1751) was an English clockmaker and inventor and a member of the Royal Society. A Friend (Quaker) like his mentor Thomas Tompion, Graham left Cumberland in 1688 for London to work with Tompion.He was partner to the… …   Wikipedia

• Tompion, Thomas — (baptized July 25, 1639, Northill, Bedfordshire, Eng. died Nov. 20, 1713, London) British clockmaker. Working closely with Robert Hooke and Edward Barlow, he made one of the first English watches with a balance spring and patented the cylinder… …   Universalium

• Pendulum clock — A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. From its invention in 1656 by Christiaan Huygens until the 1930s, the pendulum clock was the world s most accurate timekeeper, accounting for its… …   Wikipedia

• Pendulum — This article is about pendulums. For other uses, see Pendulum (disambiguation). Simple gravity pendulum model assumes no friction or air resistance …   Wikipedia

• Su Song — 蘇頌 (Sū Sòng) Born 1020 near Quanzhou Died 1101 (aged 80–81) Nationality Chinese …   Wikipedia

• Thomas Tompion — (1639 ndash;1713) was an English master clockmaker and watchmaker known today as the father of English watchmaking . His work includes some of the most important clocks and watches in the world and his work commands huge prices whenever it… …   Wikipedia

• Richard Towneley — (10 October 1629 – 22 January 1707) was an English mathematician and astronomer from Towneley near Burnley, Lancashire. He was one of a group of seventeenth century astronomers in the north of England, which included Jeremiah Horrocks, William… …   Wikipedia

• Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …   Wikipedia