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The British Horological Institute (BHI) is the representative body of the horological industry in the United Kingdom. It was founded by a group of clockmakers in 1858, and has its current premises at Upton Hall in Nottinghamshire, which includes a museum of clock history.
The BHI was founded in 1858 by a small group of clockmakers, one of whom was Edward Daniel Johnson. Their aim was to unify the British horological industry and trades in the face of large numbers of imports of clocks and watches from abroad. The institute was an immediate success and within a year it had founded its own museum and library; it also began to offer evening classes in clock- and watch-making. [1]
The journal of the institute is the Horological Journal, which has been published monthly since September 1858. It is claimed to be the oldest continuously published technical journal in the world. [2]
The current premises of the BHI are at Upton Hall in Nottinghamshire, England. Its primary role is that of education, providing a standardised set of examinations for training horologists. It also maintains a list of members [3] whom it considers sufficiently qualified to repair clocks and watches, and who adhere to a strict code of practice. [4] Upton Hall is also home to the charitable Museum of Timekeeping at the British Horological Institute, which includes the original BHI Museum and Library.
The institute offers a number of different kinds of membership. [5] These include:
BHI members can gain accredited Member-level status by passing the BHI examinations at Level 4. Accredited members at this level may use the postnominals MBHI.
Accredited: Fellow of the BHI (FBHI)
The next level of BHI accreditation is Fellowship. This can be gained by passing the BHI examinations at Level 5 or by making a successful application to the BHI based upon outstanding career achievements. Accredited members at this level may use the postnominals FBHI.
Corporate membership and business partnership are also available.
The Museum of Timekeeping is also housed at the home of the British Horological Institute.
The Museum of Timekeeping is an independent charitable Museum (Registered Charity Number 1176495), established in 1994 to hold in trust the collection and library, brought together by BHI members since its founding in 1858.
The Museum includes a collection of clocks, watches and timepieces and associated clock and watchmaking tools and ephemera. It can be visited during seasonal opening hours, plus a range of special events, or by booking a private group visit.
The Museum of Timekeeping Library is one of very few existing specialised libraries dealing primarily with horology. It is open to researchers by appointment, and its holding includes a number of rare documents, papers, letters and books, particularly dealing with the high points of British horology in the 18th and early 19th century, but its catalogue contains comparatively few titles published in the last several decades. An exception is THROUGH THE GOLDEN AGE – Charles Gretton – Watch and Clockmaking , a 660-page volume about the life, era, and creations of celebrated clockmaker and watchmaker Charles Gretton (1647–1731), published in 2016.
The institute's gold medal for an outstanding contribution to horology has been awarded to:
A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is a harmonic oscillator: It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates. From its invention in 1656 by Christiaan Huygens, inspired by Galileo Galilei, until the 1930s, the pendulum clock was the world's most precise timekeeper, accounting for its widespread use. Throughout the 18th and 19th centuries, pendulum clocks in homes, factories, offices, and railroad stations served as primary time standards for scheduling daily life, work shifts, and public transportation. Their greater accuracy allowed for the faster pace of life which was necessary for the Industrial Revolution. The home pendulum clock was replaced by less-expensive, synchronous, electric clocks in the 1930s and '40s. Pendulum clocks are now kept mostly for their decorative and antique value.
Horology is the study of the measurement of time. Clocks, watches, clockwork, sundials, hourglasses, clepsydras, timers, time recorders, marine chronometers, and atomic clocks are all examples of instruments used to measure time. In current usage, horology refers mainly to the study of mechanical time-keeping devices, while chronometry more broadly includes electronic devices that have largely supplanted mechanical clocks for the best accuracy and precision in time-keeping.
The Worshipful Company of Clockmakers was established under a royal charter granted by King Charles I in 1631. It ranks sixty-first among the livery companies of the City of London, and comes under the jurisdiction of the Privy Council. The company established a library and its museum in 1813, which is the oldest specific collection of clocks and watches worldwide. This is administered by the company's affiliated charity, the Clockmakers’ Charity, and is presently housed on the second floor of London's Science Museum. The modern aims of the company and its museum are charitable and educational, in particular to promote and preserve clockmaking and watchmaking, which as of 2019 were added to the HCA Red List of Endangered Crafts.
A watchmaker is an artisan who makes and repairs watches. Since a majority of watches are now factory-made, most modern watchmakers only repair watches. However, originally they were master craftsmen who built watches, including all their parts, by hand. Modern watchmakers, when required to repair older watches, for which replacement parts may not be available, must have fabrication skills, and can typically manufacture replacements for many of the parts found in a watch. The term clockmaker refers to an equivalent occupation specializing in clocks.
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 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 escapement's tooth is what generates the characteristic "ticking" sound heard in operating mechanical clocks and watches.
The Clockmakers’ Museum in London, England, is believed to be the oldest collection specifically of clocks and watches in the world. The collection belongs to and is administered by the Clockmakers’ Charity, affiliated to the Worshipful Company of Clockmakers, founded in 1631 by Royal Charter. Since 2015 it has been housed in a gallery provided by the Science Museum in South Kensington, having formerly been located in the Guildhall complex in the City of London since 1874, where it first opened to the public. Admission is free.
Thomas Tompion, FRS (1639–1713) was an English clockmaker, watchmaker and mechanician who is still regarded to this day as the "Father of English Clockmaking". Tompion's work includes some of the most historic and important clocks and watches in the world, and can command very high prices whenever outstanding examples appear at auction. A plaque commemorates the house he shared on Fleet Street in London with his equally famous pupil and successor George Graham.
George Daniels, CBE, FBHI, FSA, AHCI 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. 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.
The National Association of Watch & Clock Collectors, Inc. (NAWCC) is a nonprofit association of people who share a passion for collecting watches and clocks and studying horology. The NAWCC's global membership is composed of nearly 10,000 individuals, businesses, and institutions, with more than 1.25 million users accessing its main website and online Forums each year. The Forums, offer NAWCC members and nonmembers the opportunity to ask questions about watches and clocks.
The American Watchmakers-Clockmakers Institute (AWCI) is a not-for-profit trade association based in the United States that is dedicated to the advancement of the modern watch industry, from which it receives a significant portion of its funding. While the AWCI is an American organization, it also has members throughout the world.
Upton Hall is the headquarters of the British Horological Institute (BHI) in Upton, Newark and Sherwood, Nottinghamshire, England. It has been the headquarters since 1972. It also houses the Museum of Timekeeping consisting of a substantial collection of clocks, watches and also a library. The Museum is open to the public during seasonal summer opening hours, for special events and for pre-booked Group tours.
The National Watch and Clock Museum (NWCM), located in Columbia, Pennsylvania, is one of a very few museums in the United States dedicated solely to horology, which is the history, science and art of timekeeping and timekeepers.
Philip Mayne Woodward was a British mathematician, radar engineer and horologist. He achieved notable success in all three fields. Before retiring, he was a Deputy Chief Scientific Officer at the Royal Signals and Radar Establishment (RSRE) of the British Ministry of Defence in Malvern, Worcestershire.
Edward Martin Burgess FSA FBHI, known as Martin Burgess, is an English horologist and master clockmaker.
The Shortt–Synchronome free pendulum clock is a complex precision electromechanical pendulum clock invented in 1921 by British railway engineer William Hamilton Shortt in collaboration with horologist Frank Hope-Jones, and manufactured by the Synchronome Company, Ltd., of London. They were the most accurate pendulum clocks ever commercially produced, and became the highest standard for timekeeping between the 1920s and the 1940s, after which mechanical clocks were superseded by quartz time standards. They were used worldwide in astronomical observatories, naval observatories, in scientific research, and as a primary standard for national time dissemination services. The Shortt was the first clock to be a more accurate timekeeper than the Earth itself; it was used in 1926 to detect tiny seasonal changes in the Earth's rotation rate. Shortt clocks achieved accuracy of around a second per year, although a recent measurement indicated they were even more accurate. About 100 were produced between 1922 and 1956.
Edward Daniel Johnson was a respected London watch and marine chronometer maker. He was a founder member and vice President of the British Horological Institute, which was formed in June 1858.
Philip Thorpe Priestley BSc FSA MBHI was an English scientist and inventor.
Frank Hope-Jones (1867–1950) was a British horologist.
Charles Gretton was an English clock and watchmaker during the golden age of English clockmaking.
William Hamilton Shortt (1881-1971) was a railway engineer and noted horologist, responsible for the design of the Shortt-Synchronome free pendulum clock, a widely used time standard, employed internationally in observatories in the period between the two World Wars. His deep involvement in precision timekeeping, as a colleague of Frank Hope-Jones and director of the Synchronome Company, derived from work on the safety of train travel and the accurate measurement of train speeds, following investigations into a serious train derailment of a LSWR train at Salisbury Station in 1906, when twenty-eight people died.
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