Important Dates In The History Of Clocks
First authentic recorded mention of the sun dial.
There is, however, evidence of use of the sun dial
as early as 2,000 B.C.
Toothed wheels for transmission of power
attributed to Archimedes.
Sand glasses known to be in use.
Alfred the great used candles as "clocks."
Clockmaking in England started.
Mainspring invented by Peter Hele, or Henlein,
a locksmith of Nurnburg. About this time the small
domestic, or table clock made its appearance.
The first watch was made at about this time.
Screws made their appearance.
An astronomical clock was fixed in one of
the towers of Hampton Court Palace.
Galileo, Italian Astronomer and Physicist,
discovered the properties of the pendulum.
Watchmaking industry commenced in Geneva.
Glasses as protection for watch dial and hand introduced.
Enamel dials invented by Paul Viet of Blois, France.
Christiaan Huygens, a Dutch Physicist, made
the first pendulum controlled clock.
The recoil anchor excapement, possibly invented
by Dr. Robert Hooke between 1666 and 1667.
Pendulum suspension spring introduced by
William Clement. The first known clock with
anchor excapement made by William Clement.
Royal Observatory at Greenwich founded. Edward Booth
( Later Rev. Edward Barlow ) invented the
Rack Striking Mechanism for clocks.
The concentric minute hand, with motion work
similar to that in use today, was used by
Daniel Quare, a famous London maker and
others. Daniel Quare also made repeating watches
about this time. The Second Hand is introduced.
Nicholas Facio, FRS, a native of Geneva, who
settled in London, succeeded in piercing
rubies and sapphires for use as jewelled
bearing for balance staff pivots.
George Graham invented the dead-beat
excapement for clocks. He also invented
the mercurial compensation pendulum.
John Harrison invented the grid-iron compensation pendulum.
George Graham invented the cylinder escapement.
Centre Seconds hand introduced. " Tell-tale" clocks
invented by John Whitehurst, FRS, a celebrated
clockmaker of Berby and London. (1713-1788)
Alexander Bain, an Edinburgh clockmaker,
made the first electric clock.
The British Horological Institute, an association
of Clock and Watch Makers for the purpose of advancing
the horological art, was founded. "The Horological Journal,"
the oldest periodical dealing with the craft, was stated.
Georges Frederick Roskopf developed
the pin pallet escapement.
G.M.T. became the standard time for
the whole of the United Kingdom.
Charles R. Sligh forms the
Sligh Furniture Company
The meridian of Greenwich was adopted by
international agreement as the zero or prime
meridian from which the longitude of all
places in the world is measured.
The first electric master clock and impulse dial system
was invented by Frank Hope-Jones, F.B.H.I. Upon which
all modern impulse clock systems are based.
Electric contacts are fitted to a Marine Chronometer
for the purpose of impulsing secondary dials.
Summer Time first introduced.
The alternating current synchronous motor was first
applied to clocks by H.C. Warren in the U.S.A.,
although the principle had been discussed as far back as 1895.
Thus came the first "plug into mains" clock.
Study and development of the Quartz Crystal clock
commenced by Dr. Warren A. Marrison, F.B.H.I.
a Canadian who became an American citizen.
Howard C. Miller starts the "Howard Miller Clock Co."
Quartz Crystal clocks introduced at
the Royal Greenwich Observatory.
Atomic Clock invented by Dr. L. Essen, O.B.E., F.B.H.I.
National Physical Laboratory, Teddington.
Sligh purchases the Trend Clock Company
and starts producing the Sligh Clocks.
The Sligh Clock Company
announces that they will
no longer manufacturer clocks.