|
-
HISTORY OF THE PENDULUM
CLOCK -
The
beginning of clock making and the eventual end of other horological devices
began when the Chinese discovered a method of preventing the power of any time
device from running away unchecked. What the Chinese invented became known as
an escapement, and it is still an integral part of all clock making. The
escapement is a small brake or check that stops the wheels of the clock
regularly. Thus, the wheels cannot build up momentum and race when the clock
is first wound, then go slowly as the clock runs down. This stop-and-go
movement of the clock-works is quite literally what makes the clock tick.
The
lantern clock was made in more or less standardized form until about 1660,
when there was a change in clock making in England that had repercussions
throughout Europe. Yet the man responsible for the change was not English or
even working in England; it was the celebrated Dutch astronomer and physicist
Christian Huygens (1629-93), who invented the pendulum clock in about 1657.
The
clock were described as 'keeping an equaller time than any now made without
this Regulator (examined and proved before his Highness the Lord Protector by
such Doctors whose knowledge is learning without exception) and may be made to
go for a week, a month, or a year, with one winding up'. The Regulator was the
pendulum. The precision introduced by the pendulum coincided with the rigid
religious disciplines introduced by the Puritans, and Oliver Cromwell, the
Lord Protector, was sufficiently interested in it to approve it. Once more
timekeeping had found a sponsor in religious disciplinarians.
The
invention was taken up by London clockmakers in an incredibly short time,
considering the fact that in those days ideas could take years to spread to a
neighboring town. In about 1660 London makers invented the long case
(grandfather clock, with a short pendulum of about 25 centimeters (10 inches).
It stood about 1.8 meters (6 feet) high in a good quality ebonized or walnut
case, which enclosed the weight. When the long pendulum, also called the Royal
Pendulum because it dominated the clock, was introduced about 1670, the long case
clock became taller, as well as wider.
[ Return
to Grandfather Clocks ]
|