Gold Spring
A very thin spring made of gold, attached to the detent of a chronometer escapement. See Chronometer Escapement.
GRAHAM, GEORGE. Born in Cumberland, England, in 1673 and died in 1751. He was buried in Westminister Abbey. He was the inventor of the mercurial pendulum (1715), the dead beat escapement for clocks, and is credited with being the inventor of the cylinder escapement.