The Riefler escapement is a mechanical escapement for precision pendulum clocks invented and patented by German instrument maker Sigmund Riefler in 1889...

invented the Riefler escapement which was patented in 1889. He died in Munich on 21 October 1912 at the age of 65. Monroe mentions Sigmund Riefler in the "One...

research. The Riefler escapement, used in Clemens-Riefler regulator clocks was accurate to 10 milliseconds per day. Electromagnetic escapements, which used...

pendulum bob (this can be seen in the Riefler clock image above). Invar pendulums were first used in 1898 in the Riefler regulator clock which achieved accuracy...

beginning of the 20th century with evacuated pendulum clocks such as the Riefler and Shortt. Clock B lay incomplete in Burgess's workshop until 2009, when...

date had been achieved by clocks housed in vacuum tanks, using a Riefler escapement. Shortt's breakthrough in 1920 came with the development of a clock...

watchmaker and founder of Ed. Kummer AG. Sigmand Riefler (1847–1912), German clockmaker, Munich, Riefler precision pendulum clocks. Webster Clay Ball (1847–1922)...

1538-7305.1948.tb01343.x. Archived from the original on 2014-02-28. "The Riefler and Shortt clocks". JagAir Institute of Time and Technology. Retrieved...