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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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anker 01
Anker may refer to: People *Anker (name), people with the given name or surname *Anker (noble family) Places *River Anker, in Warwickshire, England *Anker Site, an archaeological site in Illinois, US Companies and brands * Anker (automobile), manufactured in Germany * Anker Innovations (), a Chinese electronics brand producing computer and smartphone peripherals * Anker Beer, an Indonesian brand of pale lager Measures *Anker, an archaic unit of volume used in the Netherlands; see Dutch units of measurement § Volume * Anker (unit), a unit of volume used in the US See also *Anchor (other) An anchor is a device that attaches to the sea bottom to prevent a boat from drifting. Anchor may also refer to: Devices * Sea anchor, a device to slow the drift of a vessel without use of the seabed * Earth anchor, a device to support structure ... * Ankers * * {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Co-axial Escapement
The coaxial escapement is a type of modern watch escapement mechanism invented by English watchmaker George Daniels (watchmaker), George Daniels in 1976 and patented in 1980. It is one of the few watch escapements to be 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 (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. Influences Charles Fasoldt Charles Fasoldt, a German-American watch- and clockmaker, was instrumental in the development of the escapement mechanism. His patented escapement of 1865 introduced a novel duplex design with co-axially mounted t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anchor 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 invented by clockmaker William Clement, who popularized the anchor in his invention of the longcase or grandfather clock around 1680. Clement's invention was a substantial improvement on Robert Hooke's constant force escapement of 1671. The oldest known anchor clock is Wadham College Clock, a tower clock built at Wadham College, Oxford, in 1670, probably by clockmaker Joseph Knibb. The anchor became the standard escapement used in almost all pendulum clocks. A more accurate variation without recoil called the deadbeat escapem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zenith (watchmaker)
Zenith SA is a French owned Swiss luxury watch manufacturing subsidiary of LVMH. The company was started in 1865 by Georges Favre-Jacot in Le Locle in the canton of Neuchâtel and is one of the oldest continuously operating watchmakers. Favre-Jacot invented the concept of "in house movements", believing that only through control of the entire watchmaking process could the highest quality be achieved. Zenith was purchased by LVMH in November 1999, becoming one of several brands in its watch and jewelry division, which includes TAG Heuer and Hublot. Benoit de Clerck is the company's current president and CEO. History In 1865, at the age of 22, George Favre-Jacot began manufacturing watches under his name at a small workshops in Le Locle, Switzerland. After witnessing the success of American watch companies Waltham and Elgin utilizing mass production to sell affordable and reliable timepieces, he invested heavily in his own company to create a vertically integrated watchmaking o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patek Philippe
Patek Philippe SA () is a Swiss luxury watchmaker and clock manufacturer, located in the Canton of Geneva and the Vallée de Joux. Established in 1839, it is named after two of its founders, Antoni Patek and Adrien Philippe. Since 1932, the company has been owned by the Stern family in Switzerland and remains the last family-owned independent watch manufacturer in Geneva. Patek Philippe is one of the oldest watch manufacturers in the world with an uninterrupted watchmaking history since its founding. It designs and manufactures timepieces as well as movements, including some of the most complicated mechanical watches. The company maintains over 400 retail locations globally and over a dozen distribution centers across Asia, Europe, North America, and Oceania. In 2001, it opened the Patek Philippe Museum in Geneva. Patek Philippe is widely considered to be one of the most prestigious watch manufacturers in the world. As of July 2023, among the world's top ten most expensive watch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulysse Nardin
Ulysse Nardin SA is a Swiss luxury watchmaking company founded in 1846 in Le Locle, Switzerland. The company became known for manufacturing highly accurate marine chronometers and complicated precision exclusive timepieces used by over 50 of the world's navies from the end of the 19th century till 1950. According to the last official report of Neuchâtel Observatory in Switzerland, Ulysse Nardin had won numerous awards and honors for its marine chronometers from 1846 to 1975, including 4324 certificates, 2411 special prizes and 18 gold medals at International exhibitions. The company was taken over and re-invigorated in 1983 by Rolf W. Schnyder who transformed it into a profitable business. From 2014, it was a subsidiary of the French luxury group Kering. Ulysse Nardin has operated out of the same building headquartered in Le Locle, Switzerland since 1865. Ulysse Nardin is now owned by Sowind Group SA following a management buyout. The company today designs and manufac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond
Diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of electricity, and insoluble in water. Another solid form of carbon known as graphite is the Chemical stability, chemically stable form of carbon at Standard temperature and pressure, room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest Scratch hardness, hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen). Small numbers of lattice defect, defects or impurities (about one per million of lattice atoms) can color ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon
Silicon is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre, and is a tetravalent metalloid (sometimes considered a non-metal) and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive. Silicon is a significant element that is essential for several physiological and metabolic processes in plants. Silicon is widely regarded as the predominant semiconductor material due to its versatile applications in various electrical devices such as transistors, solar cells, integrated circuits, and others. These may be due to its significant band gap, expansive optical transmission range, extensive absorption spectrum, surface roughening, and effective anti-reflection coating. Because of its high chemical affinity for oxygen, it was not until 1823 that Jöns Jakob Berzelius was first able to p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor Fabrication
Semiconductor device fabrication is the process used to manufacture semiconductor devices, typically integrated circuits (ICs) such as microprocessors, microcontrollers, and memories (such as RAM and flash memory). It is a multiple-step photolithographic and physico-chemical process (with steps such as thermal oxidation, thin-film deposition, ion-implantation, etching) during which electronic circuits are gradually created on a wafer, typically made of pure single-crystal semiconducting material. Silicon is almost always used, but various compound semiconductors are used for specialized applications. This article focuses on the manufacture of integrated circuits, however steps such as etching and photolithography can be used to manufacture other devices such as LCD and OLED displays. The fabrication process is performed in highly specialized semiconductor fabrication plants, also called foundries or "fabs", with the central part being the " clean room". In more advanced semi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pallet Lever
A pallet (also called a skid) is a flat transport structure, which supports goods in a stable fashion while being lifted by a forklift, a pallet jack, a front loader, a jacking device, or an erect crane. Many pallets can handle a load of . While most pallets are wooden, pallets can also be made of plastic, metal, paper, and recycled materials. A pallet is the structural foundation of a unit load, which allows handling and storage efficiencies. Goods in shipping containers are often placed on a pallet secured with strapping, stretch wrap or shrink wrap and shipped. In addition, pallet collars can be used to support and protect items shipped and stored on pallets. Containerization for transport has spurred the use of pallets because shipping containers have the smooth, level surfaces needed for easy pallet movement. Since its invention in the twentieth century, its use has dramatically supplanted older forms of crating like the wooden box and the wooden barrel, as it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pin-pallet Escapement
A Roskopf, pin-lever, or pin-pallet escapement is an inexpensive, less accurate version of the lever escapement, used in mechanical alarm clocks, kitchen timers, mantel clocks and, until the 1970s, cheap watches now known as pin lever watches. It was popularized by German watchmaker Georges Frederic Roskopf in its "proletarian watch" from 1867. It was invented in 1798 by Louis Perron, of Besançon, and suggested to Roskopf by Jules Grossmann. Background An escapement is the mechanism in a mechanical timepiece that gives the balance wheel pushes to keep it moving back and forth, and releases the timepiece's gears to advance a fixed amount with each swing of the wheel, thus moving the hands forward at a steady rate. The pin pallet escapement is similar to the lever escapement, which is used in quality watches, except that the horizontal jewel Mechanical watch#Watch jewels, pallets on the Pallet fork, lever are replaced with vertical metal pins, and the shape of the escape wheel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
