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Co-axial Escapement
The coaxial escapement is a type of modern watch escapement mechanism invented by English watchmaker George Daniels in 1976 and patented in 1980. It is one of the few watch escapements which have been invented in modern times and is used in most of the mechanical watch models currently produced by Omega SA. History During the quartz crisis, English watchmaker George Daniels accepted a commission from American industrialist and watch collector Seth G. Atwood to create a timepiece that would fundamentally improve the performance of mechanical watches. As a result, Daniels invented the coaxial escapement in 1974 and patented it in 1980. The ''Atwood watch'' for Seth G. Atwood was completed in 1976. Technical overview The coaxial escapement is a modification of the lever escapement with some features of the detent escapement. One of the few advances in escapement design which have been adopted since the invention of the lever escapement by Thomas Mudge in the 18th century, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escapement
An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's hands. The impulse action transfers energy to the clock's timekeeping element (usually a pendulum or balance wheel) to replace the energy lost to friction during its cycle and keep the timekeeper oscillating. The escapement is driven by force from a coiled spring or a suspended weight, transmitted through the timepiece's gear train. Each swing of the pendulum or balance wheel releases a tooth of the escapement's ''escape wheel'', allowing the clock's gear train to advance or "escape" by a fixed amount. This regular periodic advancement moves the clock's hands forward at a steady rate. At the same time, the tooth gives the timekeeping element a push, before another tooth catches on the escapement's pallet, returning the escapement to its "locked" state. The sudden stopping of the esc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Daniels (watchmaker)
George Daniels, CBE, FBHI, FSA, AHCI (19 August 1926 – 21 October 2011) was an English horologist who was considered by some to be one of the best in the world in the field of luxury mechanical watches and timepieces during his lifetime. He was a watchmaker who built complete watches by hand (including the case and dial). But it was his creation of the coaxial escapement for which he is most remembered. The movement, which theoretically removed the need to add a lubricant, has been used by Omega in most of their collections since 1999 with the exception of the Speedmaster Moonwatch (until the release of the Speedmaster Moonwatch Caliber 3861 in 2021). A gold chronograph pocket watch made by George Daniels, the ''Space Traveller's Watch I'', ranks as one of the 20 most expensive watches ever sold at auction, fetching £ 3,615,000 in London on 2 July 2019. Early career Daniels was born in Sunderland in 1926. His mother was unmarried so she fled London and travelled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omega SA
Omega SA is a Swiss luxury watchmaker based in Biel/Bienne, Switzerland. Founded by Louis Brandt in La Chaux-de-Fonds in 1848, the company formerly operated as ''La Generale Watch Co.'' until incorporating the name ''Omega'' in 1903, becoming ''Louis Brandt et Frère-Omega Watch & Co.'' In 1984, the company officially changed its name to ''Omega SA'' and opened its museum in Biel/Bienne to the public. Omega is a subsidiary of The Swatch Group. Britain's Royal Flying Corps used Omega watches in 1917 for its combat units, followed by the U.S. Army in 1918, and NASA in 1969 for Apollo 11. Omega has been the official timekeeper of the Olympics since 1932 and is the current timekeeper of the America's Cup yacht race. Omega was a main partner of the 2022 Winter Olympics. History Early history The forerunner of Omega, ''La Generale Watch Co.'', was founded at La Chaux-de-Fonds, Switzerland, in 1848 by Louis Brandt, who assembled key-wound precision pocket watches from parts suppli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coaxial Toon 600
In geometry, coaxial means that several three-dimensional linear or planar forms share a common axis. The two-dimensional analog is ''concentric''. Common examples: A coaxial cable is a three-dimensional linear structure. It has a wire conductor in the centre (D), a circumferential outer conductor (B), and an insulating medium called the dielectric (C) separating these two conductors. The outer conductor is usually sheathed in a protective PVC outer jacket (A). All these have a common axis. The dimension and material of the conductors and insulation determine the cable's characteristic impedance and attenuation at various frequencies. Coaxial rotors are a three-dimensional planar structure: a pair of helicopter rotors (wings) mounted one above the other on concentric shafts, with the same axis of rotation (but turning in opposite directions). In loudspeaker design, coaxial speakers A coaxial loudspeaker is a loudspeaker system in which the individual driver units radiate s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz Crisis
The quartz crisis was the upheaval in the watchmaking industry caused by the advent of quartz watches in the 1970s and early 1980s, that largely replaced mechanical watches around the world.Smithsonian: The quartz revolution revitalized the U.S. watch industry. It caused a significant decline of the Swiss watchmaking industry, which chose to remain focused on traditional mechanical watches, while the majority of the world's watch production shifted to Japanese companies such as , [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seth G
Seth,; el, Σήθ ''Sḗth''; ; "placed", "appointed") in Judaism, Christianity, Islam, Mandaeism, and Sethianism, was the third son of Adam and Eve and brother of Cain and Abel, their only other child mentioned by name in the Hebrew Bible. According to , Seth was born after Abel's murder by Cain, and Eve believed that God had appointed him as a replacement for Abel. Genesis According to the Book of Genesis, Seth was born when Adam was 130 years old (according to the Masoretic Text), or 230 years old (according to the Septuagint), "a son in his likeness and image". The genealogy is repeated at . states that Adam fathered "sons and daughters" before his death, aged 930 years. According to Genesis, Seth died at the age of 912 (that is, 14 years before Noah's birth). (2962 BC) Jewish tradition Seth figures in the pseudepigraphical texts of the ''Life of Adam and Eve'' (the ''Apocalypse of Moses''). It recounts the lives of Adam and Eve from after their expulsion from the Gar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lever Escapement
The lever escapement, invented by the English clockmaker Thomas Mudge in 1754 (albeit first used in 1769), is a type of escapement that is used in almost all mechanical watches, as well as small mechanical non-pendulum clocks, alarm clocks, and kitchen timers. An escapement is a mechanical linkage that delivers impulses to the timepiece's balance wheel, keeping it oscillating back and forth, and with each swing of the balance wheel allows the timepiece's gear train to advance a fixed amount, thus moving the hands forward at a steady rate. The escapement is what makes the "ticking" sound in mechanical watches and clocks. Invention The lever escapement was invented by British clockmaker Thomas Mudge around 1754, and improved by Abraham-Louis Breguet (1787), Peter Litherland (1791), and Edward Massey (1800). Its modern ("table roller") form was developed by George Savage in the early 1800s. Since about 1900 virtually every mechanical watch, alarm clock and other portable tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detent Escapement
An escapement is a mechanical linkage A mechanical linkage is an assembly of systems connected to manage forces and movement. The movement of a body, or link, is studied using geometry so the link is considered to be rigid. The connections between links are modeled as providing i ... in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's hands. The impulse action transfers energy to the clock's timekeeping element (usually a pendulum or balance wheel) to replace the energy lost to friction during its cycle and keep the timekeeper oscillating. The escapement is driven by force from a coiled spring (device), spring or a suspended weight, transmitted through the timepiece's gear train. Each swing of the pendulum or balance wheel releases a tooth of the escapement's ''escape wheel'', allowing the clock's gear train to advance or "escape" by a fixed amount. This regular per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pallet Fork
The pallet fork is a component of the lever escapement of a mechanical watch. The pallet fork and the lever form one component that sits between the escape wheel and the balance wheel. Its purpose is to lock the escape wheel, and release it one tooth at a time at each swing of the balance wheel, and also give the balance wheel small pushes to keep it going. In early watches the pallet fork and the lever were made as separate components and joined together. In later watches they were made as a single component as shown in the picture. The combined component is often referred to simply as the "lever". In a straight line Swiss lever type escapement, the lever is shaped like a 'T' or an anchor, which gives this escapement its alternative name of anchor escapement. The lever is pivoted in the center; in operation it rocks back and forth.{{cite web , last = Odets , first = Walt , author-link = , title = The Escapement , work = Illustrated Glossary of Watch Parts , pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sliding Friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: *Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into ''static friction'' ("stiction") between non-moving surfaces, and ''kinetic friction'' between moving surfaces. With the exception of atomic or molecular friction, dry friction generally arises from the interaction of surface features, known as asperities (see Figure 1). *Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other. *Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces. *Skin friction is a component of drag, the force resisting the motion of a fluid across the surface of a body. *Internal friction is the force resisting motion between the elements making up a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lubrication
Lubrication is the process or technique of using a lubricant to reduce friction and wear and tear in a contact between two surfaces. The study of lubrication is a discipline in the field of tribology. Lubrication mechanisms such as fluid-lubricated systems are designed so that the applied load is partially or completely carried by hydrodynamic or hydrostatic pressure, which reduces solid body interactions (and consequently friction and wear). Depending on the degree of surface separation, different lubrication regimes can be distinguished. Adequate lubrication allows smooth, continuous operation of machine elements, reduces the rate of wear, and prevents excessive stresses or seizures at bearings. When lubrication breaks down, components can rub destructively against each other, causing heat, local welding, destructive damage and failure. Lubrication mechanisms Fluid-lubricated systems As the load increases on the contacting surfaces, distinct situations can be observed wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is a global online video platform, online video sharing and social media, social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by Google, and is the List of most visited websites, second most visited website, after Google Search. YouTube has more than 2.5 billion monthly users who collectively watch more than one billion hours of videos each day. , videos were being uploaded at a rate of more than 500 hours of content per minute. In October 2006, YouTube was bought by Google for $1.65 billion. Google's ownership of YouTube expanded the site's business model, expanding from generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by YouTube. It also offers YouTube Premium, a paid subscription option for watching content without ads. YouTube also approved creators to participate in Google's Google AdSens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
