was a Connecticut clockmaker whose clocks were
well-known for their fine craftsmanship and
incredible timekeeping accuracy.
patented a pistol featuring a revolving cartridge
cylinder which automatically advanced the chamber
when the gun was cocked in 1836.
used a modified coffee bean grinder to fashion
barbs and create the world's first barbed wire,
was known as the best designer and
manufacturer of mathematical, astronomical,
surveying, and navigational instruments in
England in the late-1700's. He also invented the
dividing engine, an improved theodolite, a
pyrometer, and an eyepiece for reflecting
is the common name for a huge bell that chimes
the hours for a huge clock near the top of a
tower at the Houses of Parliament in London,
England. It is also sometimes incorrectly used to
refer to the tower and clock.
Large Elbow Pipe