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Longcase Clock
A grandfather clock (also a longcase clock, tall-case clock, grandfather's clock, or floor clock) is a tall, freestanding, weight-driven pendulum clock with the pendulum held inside the tower or waist of the case. Clocks of this style are commonly 1.8–2.4 metres (6–8 feet) tall with an enclosed pendulum and weights suspended by either cables or chains which have to be calibrated occasionally to keep the proper time. The case often features elaborately carved ornamentation on the hood (or bonnet), which surrounds and frames the dial, or clock face. The English clockmaker William Clement is credited with the development of this form in 1670. Until the early 20th century, pendulum clocks were the world's most accurate timekeeping technology, and longcase clocks, due to their superior accuracy, served as time standards for households and businesses. Today they are kept mainly for their decorative and antique value, having been widely replaced by both analog and digital ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longcase Clock
A grandfather clock (also a longcase clock, tall-case clock, grandfather's clock, or floor clock) is a tall, freestanding, weight-driven pendulum clock with the pendulum held inside the tower or waist of the case. Clocks of this style are commonly 1.8–2.4 metres (6–8 feet) tall with an enclosed pendulum and weights suspended by either cables or chains which have to be calibrated occasionally to keep the proper time. The case often features elaborately carved ornamentation on the hood (or bonnet), which surrounds and frames the dial, or clock face. The English clockmaker William Clement is credited with the development of this form in 1670. Until the early 20th century, pendulum clocks were the world's most accurate timekeeping technology, and longcase clocks, due to their superior accuracy, served as time standards for households and businesses. Today they are kept mainly for their decorative and antique value, having been widely replaced by both analog and digital ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deadbeat Escapement
In horology, the anchor escapement is a type of escapement used in pendulum clocks. The escapement is a mechanism in a mechanical clock that maintains the swing of the pendulum by giving it a small push each swing, and allows the clock's wheels to advance a fixed amount with each swing, moving the clock's hands forward. The anchor escapement was so named because one of its principal parts is shaped vaguely like a ship's anchor. The anchor escapement was probably invented by British scientist Robert Hooke around 1657, although some references credit clockmaker William Clement, who popularized the anchor in his invention of the longcase or grandfather clock around 1680. When Clement's clock appeared Hooke claimed the invention of the escapement, saying that he had shown a clock with the same escapement to the Royal Society soon after the great fire of 1666. The oldest known anchor clock is Wadham College Clock, a tower clock built at Wadham College, Oxford, in 1670, probably by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
County Durham
County Durham ( ), officially simply Durham,UK General Acts 1997 c. 23Lieutenancies Act 1997 Schedule 1(3). From legislation.gov.uk, retrieved 6 April 2022. is a ceremonial county in North East England.North East Assembly �About North East England. Retrieved 30 November 2007. The ceremonial county spawned from the historic County Palatine of Durham in 1853. In 1996, the county gained part of the abolished ceremonial county of Cleveland.Lieutenancies Act 1997 . Retrieved 27 October 2014. The county town is the of [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piercebridge
Piercebridge is a village and civil parish in the borough of Darlington and the ceremonial county of Durham, England. The population of the civil parish as of the 2011 census was 113. It is situated a few miles west of the town of Darlington. It is on the site of a Roman fort of AD 260–270, which was built at the point where Dere Street crossed the River Tees. Part of the fort is under the village green. The village is sited where the York- Newstead Roman road known as Dere Street crosses the River Tees. The excavated Roman fort is open to the public and the remains of Piercebridge Roman Bridge over the Tees now lie around south of the current course of the river, approximately east of Piercebridge, at the east side of Cliffe, Richmondshire. Toponym Piercebridge is named after its Roman bridge or ''brigg'': in 1104 it was ''Persebrig''; in 1577 it was ''Priestbrigg''. It is thought that ''pierce'' comes from ''pershe'', meaning osiers, perhaps because the bridge was at lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Clay Work
Henry Clay Work (October 1, 1832 – June 8, 1884) was an American composer and songwriter known for the songs Kingdom Coming, Marching Through Georgia, The Ship That Never Returned and My Grandfather's Clock. Early life and education Work was born in Middletown, Connecticut, to Alanson and Aurelia (née Forbes) Work. His father opposed slavery, and Work was himself an active abolitionist and Union supporter. His family's home became a stop on the Underground Railroad, assisting runaway slaves to freedom in Canada, for which his father was once imprisoned. Work was self-taught in music. By the time he was 23, he worked as a printer in Chicago, specializing in setting musical type. He allegedly composed in his head as he worked, without a piano, using the noise of the machinery as an inspiration. His first published song was "We Are Coming, Sister Mary", which eventually became a staple in Christy's Minstrels shows. Career Work produced much of his best material during the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
My Grandfather's Clock
"My Grandfather's Clock" is a song written in 1876 by Henry Clay Work, the author of "Marching Through Georgia". It is a standard of British brass bands and colliery bands, and is also popular in bluegrass music. The ''Oxford English Dictionary'' says the song was the origin of the term "grandfather clock" for a longcase clock. In 1905, the earliest known recording of this song was performed by Harry Macdonough and the Haydn Quartet (known then as the "Edison Quartet"). Storyline The song, told from a grandchild's point of view, is about his grandfather's clock. The clock is purchased on the morning of the grandfather's birth and works perfectly for 90 years, requiring only that it be wound at the end of each week. The clock seems to know the good and bad events in the grandfather's life; it rings 24 chimes when the grandfather brings his bride into his house, and near his death it rings an alarm, which the family recognizes to mean that the grandfather is near death and g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxford English Dictionary
The ''Oxford English Dictionary'' (''OED'') is the first and foundational historical dictionary of the English language, published by Oxford University Press (OUP). It traces the historical development of the English language, providing a comprehensive resource to scholars and academic researchers, as well as describing usage in its many variations throughout the world. Work began on the dictionary in 1857, but it was only in 1884 that it began to be published in unbound fascicles as work continued on the project, under the name of ''A New English Dictionary on Historical Principles; Founded Mainly on the Materials Collected by The Philological Society''. In 1895, the title ''The Oxford English Dictionary'' was first used unofficially on the covers of the series, and in 1928 the full dictionary was republished in 10 bound volumes. In 1933, the title ''The Oxford English Dictionary'' fully replaced the former name in all occurrences in its reprinting as 12 volumes with a one- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whittington Chimes
Whittington chimes, also called ''St. Mary's'', are a family of clock chime melodies associated with St Mary-le-Bow church in London, which is related to the historical figure of Whittington by legend. Whittington is usually the secondary chime selection for most chiming clocks, the first being the Westminster. It is also one of two clock chime melodies with multiple variations, the other being the ''Ave Maria'' chimes. Before the name Whittington became common, the melody used to be referred to as “chimes on eight bells”. However, evidence suggests it was originally a chime on six bells – a melody that has not been in use at St Mary-le-Bow since 1666. In 1905, based on what was known about the six-bell version, Sir Charles Villiers Stanford composed a new melody (still called Whittington chimes) that uses 11 out of the 12 bells in the tower of St Mary-le-Bow; this 11-bell version is the one now used at that church. Dick Whittington story The customary English the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westminster Quarters
The Westminster Quarters, from its use at the Palace of Westminster, is a melody used by a set of four quarter bells to mark each quarter-hour. It is also known as the Westminster Chimes, Cambridge Quarters or Cambridge Chimes from its place of origin, the Church of St Mary the Great, Cambridge. Description The Westminster Quarters are sounded by four quarter bells hung next to Big Ben in the Elizabeth Tower belfry in the Palace of Westminster. These are: The quarters consist of five changes, combinations of the four pitches provided by these quarter bells ( G4, F4, E4, B3) in the key E major. This generates five unique changes as follows: # G4, F4, E4, B3 # E4, G4, F4, B3 # E4, F4, G4, E4 # G4, E4, F4, B3 # B3, F4, G4, E4 Each of the five changes is played as three crotchets (quarter note) and a minim (half note) and are always played in the sequence 1, 2, 3, 4, 5. This sequence of five changes is used twice every hour as follows: :First quarter, change 1. :Half hou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pullchain
A pullstring (pull string, pull-string), pullcord (pull cord, pull-cord), or pullchain (pull-chain, pull chain) is a string, cord, or chain wound on a spring-loaded spindle that engages a mechanism when it is pulled. It is most commonly used in toys and motorized equipment. More generally and commonly, a pullstring can be any type of string, cord, rope, or chain, attached to an object in some way used to pull or mechanically manipulate part of it. Toys Perhaps the simplest pullstring toy is the yo-yo (c. 460 BCE). The jumping jack is a more complicated animated puppet paper doll that uses a pullstring to move its arms and legs up and down. Trompos and some spinning tops use a string that is wound around the top and then pulled to make it spin. More recent toys include dolls, such as Chatty Cathy (1959), Charmin' Chatty (1963), Talking Tamu (1970), Look Around Crissy (1972), Sky Dancers (1994), and Sheriff Woody (from the ''Toy Story'' franchise), that have a pullstri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Advantage
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device trades off input forces against movement to obtain a desired amplification in the output force. The model for this is the ''law of the lever.'' Machine components designed to manage forces and movement in this way are called mechanisms. An ideal mechanism transmits power without adding to or subtracting from it. This means the ideal machine does not include a power source, is frictionless, and is constructed from rigid bodies that do not deflect or wear. The performance of a real system relative to this ideal is expressed in terms of efficiency factors that take into account departures from the ideal. Lever The lever is a movable bar that pivots on a fulcrum attached to or positioned on or across a fixed point. The lever operates by applying forces at different distances from the fulcrum, or pivot. The location of the fulcrum determi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulley
A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt. In the case of a pulley supported by a frame or shell that does not transfer power to a shaft, but is used to guide the cable or exert a force, the supporting shell is called a block, and the pulley may be called a sheave. A pulley may have a groove or grooves between flanges around its circumference to locate the cable or belt. The drive element of a pulley system can be a rope, cable, belt, or chain. The earliest evidence of pulleys dates back to Ancient Egypt in the Twelfth Dynasty (1991-1802 BCE) and Mesopotamia in the early 2nd millennium BCE. In Roman Egypt, Hero of Alexandria (c. 10-70 CE) identified the pulley as one of six simple machines used to lift weights. Pulleys are assembled to form a block and tackle in order to provide mechanical advantage to apply large forces. Pulleys ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
