Horology from lang el wikt , hour, time and lang el , logos , study, speech lit. the study of time is the art or science of measuring time . Clocks , watches , clockwork , sundial s, Clepsydra clock clepsydras , timer s, time recorder s and marine chronometer s are all examples of Measuring instrument instrument s used to measure time . People interested in horology are called horologists . That term is used both by people who deal professionally with timekeeping apparatus watchmakers, clockmakers , as well as aficionados and scholars of horology. Horology and horologists have numerous organizations, both professional associations and more scholarly societies. Horological museums and libraries Horology has a long history and there are many museums and several specialized libraries devoted to the subject. An example is the Royal Greenwich Observatory , which is also the source of the Prime Meridian longitude 0 0 0 , and the home of the first marine timekeepers accurate enough to determine longitude made by John Harrison . Other horological museums in the London area include the Clockmakers Museum , and the horological collections at the British Museum , the Science Museum London and at the Wallace Collection . One of the more comprehensive museums dedicated to horology is the Mus e international d horlogerie in La Chaux de fonds La Chaux de Fonds Switzerland . The Mus e d Horlogerie du Locle is a bit smaller but located nearby. One of the better horological museums in Germany is the Deutsches Uhrenmuseum . The two leading specialised horological museums in North ... cuckoo clocks . Besides museums dedicated only to horology you will often find horological objects ... manufacturers System time External links Wiktionary horology http www.awci.com American Watchmakers ... of Watch & Clocks Collectors USA http www.patentgenius.com class 968.html Horology Patents http www.gutenberg.org ... Category HorologyHorology Category Timekeeping Timekeeping cy Horologiaeth de Uhrenindustrie fr Horlogerie ... more details
cleanup date September 2009 unreferenced date September 2009 Image Watch mainspring barrel.png thumb Watch going barrel. Used in mechanical watch es and clock s, a barrel is a cylindrical metal box closed by a cover, with a ring of gear teeth around it, containing a spiral spring called the mainspring , which provides power to run the timepiece. The barrel turns on an arbor axle . The spring is hooked to the barrel at its outer end and to the arbor at its inner end. The barrel teeth engage the first pinion of the wheel train horology wheel train of the watch, usually the center wheel. Barrels rotate slowly for a watch mainspring barrel, the rate is usually one rotation every 8 hours. Types of barrels Plain Barrel i.e. without teeth, used in fusee horology fusee watches and clocks. A chain, or cord, was wound around the plain barrel, connecting it to the fusee. Going barrel the form used in modern watches, is wound by turning the arbor and drives the watch movement by a ring of teeth around the barrel. This enables the mainspring to continue running the watch while it is being wound. Invented by Jean Antoine L pine . Hanging Barrel a version of the going barrel that to save space is supported by the movement only at its upper end. Motor or safety barrel used in pocketwatch es around 1900, a reverse variant of the going barrel in which the spring is wound by turning the barrel, and turns the watch movement by the central arbor. The purpose of this arrangement was that if the spring breaks, destructive recoil forces would not be applied to the vulnerable gear train . External links http fhs.ch en glossary.php?PHPSESSID 6f6571e99b125238ac18a59f24bff8f5 FH Glossary Category Clocks ... more details
In horology study of clocks , complication refers to any feature in a timepiece beyond the simple display of hours, minutes, and seconds. A timepiece indicating only hours, minutes, and seconds is otherwise known as a simple Watch Watch movements movement . Common additions such as day date displays, chronographs, and automatic winding mechanisms are usually not sufficient to permit a movement to be called complicated. Moreover, that a watch movement may be a COSC Certified Chronometer does not itself count as a complication. The more complications in a watch, the more difficult it is to design, create, assemble, and repair. A typical date display chronograph may have up to 250 parts, while a particularly complex watch may have a thousand or more parts. Watches with several complications are referred to as grandes complications. The initial ultra complicated watches appeared due to watchmakers ambitious attempts to unite a great number of functions in a case of a single timepiece. The mechanical clocks with a wide range of functions, including astronomical indications, suggested ideas to the developers of the first pocket watches. As a result, as early as in the 16th century, the horology world witnessed the appearance of numerous complicated, and even ultra complicated, watches. Ultra complicated watches are produced in strictly limited numbers, with some built as unique instruments. Some watchmaking companies known for making ultra complicated watches are Breguet watch Breguet , Patek Philippe , and Vacheron Constantin . ref http watches.infoniac.com index.php?page post&id 61 Ultra complicated watches ref Examples prose section date January 2011 Examples of complications include col begin col 2 24 hour watch Automatic watch self winding watch Chronograph for measuring ... Easter date calculators Repeater horology Quarter repeater Repeater horology Five minute repeater ... Time measurement and standards timezones Category Horology Category Watches de Komplikation Uhrwerk ... more details
Context date July 2009 Caliber at the beginning the denomination indicated only the size of a watch movement. Today, caliber designs a precise movement type, indicating the size, the style men ladies mechanical automatic Quartz number of hands calendars complications , followed by the mark of the Ebauche s manufacturer e.g. see http swisswatchguy.blogspot.com 2008 02 01 archive.html , duly registered with the Swiss Federal Trademark Office as well as by the Federation of the Swiss Watch Industry FH . Each single Swiss Made movement must be marked with the caliber indication. Following WTO s rules applicable for Custom s & Excise, the precise caliber must be indicated on each export invoice with the coordinated international Custom s code. Proper markings and calibre indication has become all the more important with the increased counterfeiting of bona fide Swiss Watch Brands. Reference & External Links http books.google.com books?id 2U8VAAAAQAAJ&pg PA76&lpg PA76&dq calibres horlogers&source bl&ots bj3LUxs6b6&sig GqqQlHMHOW94m 5J9Rr6xu 74Xs&hl en&ei 11BmSrPDDIygnQP1yMyvDw&sa X&oi book result&ct result&resnum 84 ancient dictionary definition calibre horloger pages 76 & 77 http hiro.alliancehorlogere.com en Under the Loupe Calibres by Make Alliance Horlog re calibre listings as per several definitions http www.fhs.ch en swissm.php FH Swiss Made definition http www.invenitetfecit.com fabricants page ETA.html Historique du regroupement des diverses fabrique d Ebauches sous ETA SA http swisswatchguy.blogspot.com 2008 03 from ebauches sa to eta sa 75 years of 15.html unofficial translation of above Historique ETA SA Category Horology fr Calibre horlogerie ... more details
is Curator of Horology at the British Museum ref and Leonardo da Vinci ref cite book last Derry ... is coiled around a stationary axle arbor , inside a cylindrical box, the Barrel horology barrel ... on the fusee drives the movement s wheel train horology wheel train , usually the center wheel ... obsolete in the 1970s. Commons and category Fusee horology References cite book last Dohrn van ...&pg PA63 , p. 63 69 Notes reflist 2 DEFAULTSORT Fusee Horology Category Clocks Category Horology Category Watches ... more details
A repeater is a Complication horology complication in a mechanical watch or clock that audibly chimes the hours and often minutes at the press of a button. There are many types of repeater, from the simple repeater which merely strikes the number of hours, to the minute repeater which chimes the time down to the minute, using separate tones for hours, quarter hours, and minutes. They originated before widespread artificial illumination, to allow the time to be determined in the dark, ref name OldAndSold1 cite web title Repeater Clock work Encyclopedia of Antiques publisher Old and Sold Antique Marketplace url http www.oldandsold.com articles02 clocks r.shtml accessdate 2008 04 20 ref and were also used by the visually impaired . Now they are mostly valued as expensive novelties by watch and clock enthusiasts. Repeaters should not be confused with striking clock s or watches, which do not strike on demand, but merely at regular intervals. History File Louis Brandt 13 in. watch 1892.jpg thumb 150px The 13 in. watch by Louis Brandt 1892 was the first wristwatch with a minute repeater. The repeating clock was invented by the English cleric and inventor, the Reverend Edward Barlow in 1676. ref name Milham1 cite book last Milham first Willis I. title Time and Timekeepers year 1945 publisher MacMillan location New York isbn 0780800087 p.206 ref His innovation was the rack and snail striking mechanism, which could be made to repeat easily and became the standard mechanism used in both clock and watch repeaters ever since. The best kind of repeating clocks were expensive to make a separate train of wheels had to be added to the striking mechanism, to activate it one pulled a cord whereupon it would strike the hours and quarters, or even the hours and five minute divisions five minute ... of Repeating Watches , Offprint from Antiquarian Horology originally published in parts from September ... made in an anechoic chamber . Footnotes reflist DEFAULTSORT Repeater Horology Category Horology Category ... more details
The BHI horology course is the de facto standard qualification in the United Kingdom UK for those repairing clocks and pocket watch es. Designed and moderated by the British Horological Institute, the course consists of three years part time study and aims to provide students with a basic competence in both practical and theoretical horology . Upon successful completion of the course candidates are awarded British Horological Institute Membership graduate membership of the BHI, entitling them to append the letters Grad. BHI to their name. Alternative qualifications There are few alternative qualifications available in the UK. One such is the WOSTEP standing for Watchmakers of Switzerland Training and Educational Programme course, which trains people in the repair of fine quality watches. Another course is the Restoration and Conservation of Antique Clocks offered at the West Dean College of fine art and craft. This latter course is considered to be much more challenging than the BHI course indeed it would seem that the BHI course or an equivalent skill level is an unofficial prerequisite. See also WOSTEP British Horological Institute External links http www.bhi.co.uk training.htm BHI course information http www.bhi.co.uk repairer.htm BHI list of approved repairers UK edu stub Category Horology Category Educational qualifications in the United Kingdom ... more details
In horology , a wheel train or just train is the gear train of a mechanical watch or clock . ref name Britannica cite web title Mechanical clock p.3 The wheelwork work Encyclopaedia Britannica online publisher Encyclopaedia Britannica Inc. date 2008 url http original.britannica.com eb article 258097 clock format doi accessdate 2008 07 06 ref Although the term is used for other types of gear trains, the long history of mechanical timepieces has created a traditional terminology for their gear trains which is not used in other applications of gear s. Watch movement clockwork movement s are very standardized, and the wheel trains of most watches have the same parts. The wheel trains of clocks are a little more varied, with different numbers of wheels depending on the type of clock and how many hours the clock runs between windings. ref cite book last Milham first Willis I. title Time and Timekeepers date 1945 publisher MacMillan location New York pages p.178 isbn 0780800087 ref However, the wheel trains of clocks and watches share the same terminology, and are similar enough that they can be described together. The large gears in timepieces are generally called wheels , the smaller gears they mesh with large to small, large to small are called pinion s, and the shafts that the wheels and pinions are mounted on are called arbors . ref http original.britannica.com eb article 258097 clock Britannica 2008 ref The wheels are mounted between the plates of the movement clockwork movement , with the pivots rotating in holes in the plates. The pivot holes have semicircular depressions around them, called oil cups, to hold the oil in contact with the shaft by capillary action. There are several wheel trains in a typical clock or watch Going train The going train is the main gear train of the timepiece. It consists of the wheels that transmit the force of the timepiece s power source ... barrel horology barrel in watches and spring driven clocks, and by the weight pulley in weight ... more details
Summary Information Description An image of the Dial of the Riefler Precision Pendulum Clock No 549, currently 2006 in use as the workshop regulator in the horological workshop of the Deutsches Museum in Munich Germany. Source self made by Fortunat Mueller Maerki, Sussex NJ on occasion of the 2006 horological study tour to Germany of the USA Section of the Antiquarian Horologocal Society Date created 5. Sep. 2006 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk 23 09, 12 July 2008 UTC Permission I grant permission to use this image under GNU free documentation license Version 1.2 other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Information Description A closeup image of the double escape wheel of the Riefler Precision Pendulum Clock No 549, currently 2006 in use as the workshop regulator in the horological workshop of the Deutsches Museum in Munich Germany. Source Author Date 5. Sep. 2006 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Summary Information Description An image of a french pendule clock at the Musee d Horlogerie LelOCLE Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2008 HOROLOGICAL STUDY TOUR OF sWITZERLAND OF THE aNTIQUARIAN hOROLOGIACAL sOCIETY usa sECTION Date 2008 04 20 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0,2.5,2.0,1.0 GFDL ... more details
Summary Summary Information Description An image of several renaissance clocks at the Uhrenmuseum Roeslistrasse in Zuerich Switzerland Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2008 HOROLOGICAL STUDY TOUR OF SWITZERLAND OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2008 04 16 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Summary Information Description An image of several wooden movement clocks at the Uhrenmuseum Roeslistrasse in Zuerich Switzerland Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2008 HOROLOGICAL STUDY TOUR OF SWITZERLAND OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2008 04 16 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Summary Information Description An image of several Neuchatel style pendule clocks at the Uhrenmuseum Roeslistrasse in Zuerich Switzerland Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2008 HOROLOGICAL STUDY TOUR OF SWITZERLAND OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2008 04 16 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Summary Information Description An image of several gothic period forged iron clocks at the Uhrenmuseum Roeslistrasse in Zuerich Switzerland Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2008 HOROLOGICAL STUDY TOUR OF SWITZERLAND OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2008 04 16 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Summary Information Description An image of several Neuchatel style pendule clocks at the Uhrenmuseum Roeslistrasse in Zuerich Switzerland Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2008 HOROLOGICAL STUDY TOUR OF SWITZERLAND OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2008 04 16 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Information Description An image of historic clock of the abbey of Fuessen located at the Schwaebisches Turmuhrenmuseum in Meindelheim Germany Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2006 HOROLOGICAL STUDY TOUR OF Germany OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2006 08 28 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Information Description An image of countwheel on the 1872 Manhard detached escapemnt at the Schwaebisches Turmuhrenmuseum in Meindelheim Germany Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2006 HOROLOGICAL STUDY TOUR OF Germany OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2006 08 28 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Information Description An image of towerclock beeing wound in the tower at the Schwaebisches Turmuhrenmuseum in Meindelheim Germany Source PICTURE TAKEN MYSELF ON OCCASION OF THE 2006 HOROLOGICAL STUDY TOUR OF Germany OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2006 08 28 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Summary Information Description An image of the display on the history of the lack forest clock movement at the Uhrenmuseum Guethenach in Germany Source PICTURE TAKEN MYSELF On occasion of THE 2006 HOROLOGICAL STUDY TOUR OF Germany OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2006 08 22 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Summary Information Description An image of a homemade wooden lathe used to make wooden wheel blanks displayed at the Uhrenmuseum Guethenach in Germany Source PICTURE TAKEN MYSELF On occasion of THE 2006 HOROLOGICAL STUDY TOUR OF Germany OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2006 08 22 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Summary Information Description An image of a mother and baby double cuckoo clock displayed at the Uhrenmuseum Guethenach in Germany Source PICTURE TAKEN MYSELF On occasion of THE 2006 HOROLOGICAL STUDY TOUR OF Germany OF THE ANTIQUARIAN HOROLOGIACAL SOCIETY USA SECTION Date 2006 08 22 Author Fortunat Mueller Maerki User Horology Horology User talk Horology talk Permission Permission is granted to copy, distribute and or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. other versions Licensing self cc by sa 3.0 GFDL ... more details
Fusee , or fus e , can mean A component of a clock see Fusee horology The pyrotechnic device which is also called a Flare pyrotechnic flare . An old word for flintlock rifle See also Fuser disambiguation disambig ... more details
Information Description The church of the 100 doors in Parikia on the Island of Paros in the Aegean Sea Source own Date 01 34, 20 September 2010 UTC Author User Horology Horology cropped by User Beyond My Ken Beyond My Ken User talk Beyond My Ken talk 01 34, 20 September 2010 UTC Permission other versions File Paros Church.jpg 150px Licensing PD self date July 2007 ... more details
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