Information about Clockwork
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Gear with escapement mechanism
In mechanical engineering, a clockwork is either a lightweight mechanical linkage, especially one involving multiple axles, or a complete mechanical device whose functioning relies on internal clockwork (in the preceding sense), especially where muscular effort is the sole source of operating power.
Overview
Often power for the device is stored within it via a winding device that applies mechanical stress to an energy-storage mechanism such as a spring, thus involving some form of escapement; in other cases, hand power may be utilized. The use of wheels, whether linked by friction or gear teeth, to redirect motion or gain speed or torque, is typical; many clockworks have been constructed primarily to serve as visible or implicit tours de force of mechanical ingenuity in this area. Sometimes clocks and timing mechanisms are used to set off explosives, timers, alarms and many other devices.Phrases
Clockwork can also describe an action that is repeated in uniform order over and over, for example 'The postman does his rounds like clockwork every day.'Examples
The most common examples are mechanical clocks - hence the name. Others include:- Toys - often as a simple mechanical motor, or to create automata.
- Mechanisms to turn the lens of lighthouses before electric motors.
- Babbage's difference and analytical engines, and simpler mechanical calculators.
- Astronomical models, such as orreries whose history spans hundreds of years.
- Music boxes, which were very popular during the 19th century and at the beginning of the 20th.
- Almost all phonographs built before the 1930s.
- Low-powered electrical equipment, such as a clockwork radio, where an energy-storing spring accounting for much of the size and weight of the device spins a much smaller electric generator; such equipment is very popular in certain Third World situations where batteries and mains power (house current) may be scarce.
- A clockwork computer was described on BBC World on 30 September, 2005.
People
See also
Mechanical Engineering is an engineering discipline that involves the application of principles of physics for analysis, design, manufacturing, and maintenance of mechanical systems.
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Mechanical linkages are a series of rigid links connected with joints to form a closed chain, or a series of closed chains. Each link has two or more joints, and the joints have various degrees of freedom to allow motion between the links.
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spring is a flexible elastic object used to store mechanical energy. Springs are usually made out of hardened steel. Small springs can be wound from pre-hardened stock, while larger ones are made from annealed steel and hardened after fabrication.
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escapement drives the pendulum in a pendulum clock, usually from a gear train. The gear train is powered to provide energy into the pendulum, typically using springs or weights.
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Friction is the force of two surfaces in contact. It is not a fundamental force, as it is derived from electromagnetic forces between atoms. When contacting surfaces move relative to each other, the friction between the two objects converts kinetic energy into thermal energy, or
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A gear is a component within a transmission device that transmits rotational force to another gear or device. A gear is different from a pulley in that a gear is a round wheel which has linkages ("teeth" or "cogs") that mesh with other gear teeth, allowing force to be fully
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torque (or often called a moment) can informally be thought of as "rotational force" or "angular force" which causes a change in rotational motion. This force is defined by linear force multiplied by a radius.
The SI unit for torque is the newton meter (N m). In U.S.
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The SI unit for torque is the newton meter (N m). In U.S.
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Circadian Locomotor Output Cycles Kaput, or Clock is a gene which encodes proteins regulating circadian rhythm. The CLOCK protein seems to affect both the persistence and length of the circadian cycle. CLOCK forms part of a basic-helix-loop-helix transcription factor.
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toy is an object used in play. Toys are usually associated with children and pets, but it is not unusual for adult humans and some non-domesticated animals to play with toys.
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automaton (plural: automata) is a self-operating machine. The word is sometimes used to describe a robot, more specifically an autonomous robot. Used colloquially, it refers to a mindless follower.
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lighthouse is a tower building or framework sending out light from a system of lamps and lenses or, in older times, from a fire. Lighthouses are used to mark dangerous coastlines, hazardous shoals, safe entries to harbors and can also assist in aerial navigation.
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Charles Babbage FRS (26 December 1791 – 18 October 1871) was an English mathematician, philosopher, and mechanical engineer who originated the idea of a programmable computer. Parts of his uncompleted mechanisms are on display in the London Science Museum.
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difference engine is a special-purpose mechanical digital calculator, designed to tabulate polynomial functions. Since logarithmic and trigonometric functions can be approximated by polynomials, such a machine is more general than it appears at first.
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The analytical engine, an important step in the history of computers, was the design of a mechanical general-purpose computer by the British professor of mathematics Charles Babbage. It was first described in 1837, but Babbage continued to work on the design until his death in 1871.
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orrery is a mechanical device that illustrates the relative positions and motions of the planets and moons in the solar system in heliocentric model. They are typically driven by a large clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the
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musical box (UK usage; music box in US English) is a 19th century automatic musical instrument that produces sounds by the use of a set of pins placed on a revolving cylinder or disc so as to strike the tuned teeth of a steel comb.
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Edison cylinder phonograph ca. 1899]] The phonograph, or gramophone, was the most common device for playing recorded sound from the 1870s through the 1980s.
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Terminology
Usage of these terms is not uniform across the English-speaking world (see below)...... Click the link for more information.
Centuries: 19th century - 20th century - 21st century
1900s 1910s 1920s - 1930s - 1940s 1950s 1960s
1930 1931 1932 1933 1934
1935 1936 1937 1938 1939
- -
- The 1930s
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1900s 1910s 1920s - 1930s - 1940s 1950s 1960s
1930 1931 1932 1933 1934
1935 1936 1937 1938 1939
- -
- The 1930s
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clockwork radio is a radio that is powered by clockwork wind-up mechanism driving an internal electrical generator, rather than batteries, solar cells, thermoelectrics or electricity from the electrical grid.
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electrical generator is a device that converts kinetic energy to electrical energy, generally using electromagnetic induction. The reverse conversion of electrical energy into mechanical energy is done by a motor, and motors and generators have many similarities.
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original research or unverifiable claims.
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battery is a device consisting of one or more electrochemical cells, which store chemical energy and make it available in an electrical form. There are many types of electrochemical cells, including galvanic cells, electrolytic cells, fuel cells, flow cells, and voltaic cells.
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difference engine is a special-purpose mechanical digital calculator, designed to tabulate polynomial functions. Since logarithmic and trigonometric functions can be approximated by polynomials, such a machine is more general than it appears at first.
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Availability
Satellite
Hot Bird 6 12597 V / 27500 / 3/4
Hot Bird 7A 11334 H / 27500 / 2/3 & 11432 V / 27500 / 2/3
Astra 1KR 11597 V / 22000 / 5/6
Thor 2 11325 H / 24500 / 7/8
SKY Italia Channel 520
Cyfra+ Channel 104
Cyfrowy Polsat Channel 85
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Satellite
Hot Bird 6 12597 V / 27500 / 3/4
Hot Bird 7A 11334 H / 27500 / 2/3 & 11432 V / 27500 / 2/3
Astra 1KR 11597 V / 22000 / 5/6
Thor 2 11325 H / 24500 / 7/8
SKY Italia Channel 520
Cyfra+ Channel 104
Cyfrowy Polsat Channel 85
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September 30 is the 1st day of the year (2nd in leap years) in the Gregorian calendar. There are 0 days remaining.
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Events
- 1399 - Henry IV is proclaimed King of England.
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20th century - 21st century - 22nd century
1970s 1980s 1990s - 2000s - 2010s 2020s 2030s
2002 2003 2004 - 2005 - 2006 2007 2008
2005 by topic:
News by month
Jan - Feb - Mar - Apr - May - Jun
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1970s 1980s 1990s - 2000s - 2010s 2020s 2030s
2002 2003 2004 - 2005 - 2006 2007 2008
2005 by topic:
News by month
Jan - Feb - Mar - Apr - May - Jun
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Friedrich von Knaus(s) (February 7, 1724, Aldingen, or April 7, Ludwigsburg[1] - August 14, 1789 Vienna) was a German watchmaker and inventor who built clockwork mechanisms which could, in a simple way, play musical instruments, write short phrases, or conduct other
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Antikythera mechanism (Greek: Ὁ μηχανισμός των Αντικυθήρων, Ho mēchanismós tōn Antikythērōn
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Clockwork Universe Theory is a theory, established by Isaac Newton, as to the origins of the universe.
A "clockwork universe" can be thought of as being a clock wound up by God and ticking along, as a perfect machine, with its gears governed by the laws of physics.
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A "clockwork universe" can be thought of as being a clock wound up by God and ticking along, as a perfect machine, with its gears governed by the laws of physics.
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Mechanical clockwork movement
Assembly comprising all the main parts of a watch, also used in building many forms of apparatus such as mechanical or electrical counters, switching-devices, bells and, in general, all small portable appliances whose functions are dependent on the..... Click the link for more information.
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