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French term (commonly used in English-speaking countries) for a movement blank, i.e., an incomplete watch movement sold as a set of loose parts—comprising the main plate, bridges, train, winding and setting mechanism, and regulator. The timing system, escapement, and mainspring, however, are not parts of the ébauche. Établissage
Philip Mayne Woodward (6 September 1919 – 30 January 2018) was a British mathematician, radar engineer and horologist.He achieved notable success in all three fields. Before retiring, he was a deputy chief scientific officer at the Royal Signals and Radar Establishment of the British Ministry of Defence in Malvern, Worcesters
This method may take significant time before the SCR exhaust cleaning system is fully operational, often up to an hour. [4] Another method to thaw DEF (and thus allow for full SCR operation) is to integrate an electric heater into the DEF tank. This heater must be sized, positioned, and powered adequately to rapidly melt sufficient frozen DEF.
This system was devised by Dr. H. E. Merritt, Director of Tank Design at Woolwich Arsenal, and manufactured by David Brown Ltd. The triple differential is a modification to the double differential, replacing the steering clutches with a single braked differential similar to a controlled differential.
Frank Hope-Jones (1867–1950) was a British horologist. He was the founder of the electronic clock company Synchronome, which found success in 1921 with the Shortt-Synchronome clock . He was also influential in the development of wireless radio technology in the United Kingdom.
Joseph Knibb is renowned for both the quality of his work and his invention. The aesthetic beauty and simplicity of his work is unparalleled. Among his many inventions was the system of Roman striking, [6] the tic-tac escapement, and probably the anchor escapement. [7]
Kyle Dumble, 27, was convicted of murder following 24-year-old Jack Field's death on Nov. 18, 2023
John Harrison (3 April [O.S. 24 March] 1693 – 24 March 1776) was an English carpenter and clockmaker who invented the marine chronometer, a long-sought-after device for solving the problem of how to calculate longitude while at sea.