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There is a fusee in the earliest surviving spring-driven clock, a chamber clock made for Philip the Good in c. 1430. [109] Leonardo da Vinci , who produced the earliest known drawings of a pendulum in 1493–1494, [ 110 ] illustrated a fusee in c. 1500, a quarter of a century after the coiled spring first appeared.
Charles Shepherd jun. (1830–1905), English clockmaker, engineer, made the gate clock of the Greenwich Observatory. Maurice Ditisheim (1831–1899), Swiss watchmaker and entrepreneur, in La Chaux-de-Fonds, Vulcain. Alexis Favre (1832–1908), Swiss watchmaker, Geneva. famous Regleur.
Eli Terry Sr. (April 13, 1772 – February 24, 1852) was an inventor and clockmaker in Connecticut.He received a United States patent for a shelf clock mechanism. He introduced mass production to the art of clockmaking, which made clocks affordable for the average American citizen.
Octagonal clock face. Built for the centennial of the Colgate Company in its original location of Jersey City. Moved to Indiana in 1924 when a larger replacement was made. 14: Alexandra Clock: Photo: 11 m (36 ft) 1: No: 1968: Freestanding: New Zealand: Alexandra: Located on a hill overlooking the town. Currently (as of 2020) not working [9] [10 ...
The longcase clock (also known as the grandfather clock) was created to house the pendulum and works by the English clockmaker William Clement in 1670 or 1671. It was also at this time that clock cases began to be made of wood and clock faces to use enamel as well as hand-painted ceramics. In 1670, William Clement created the anchor escapement ...
Thomas Mudge, inventor of the lever escapement. The lever escapement, invented by Thomas Mudge in 1754 [18] and improved by Josiah Emery in 1785, gradually came into use from about 1800 onwards, chiefly in Britain; it was also adopted by Abraham-Louis Breguet, but Swiss watchmakers (who by now were the chief suppliers of watches to most of Europe) mostly adhered to the cylinder until the 1860s.
Between 1870 and 1900, Chicago grew from a city of 299,000 to nearly 1.7 million and was the fastest-growing city in world history. Chicago's flourishing economy attracted huge numbers of new immigrants from Eastern and Central Europe, especially Jews, Poles, and Italians, along with many smaller groups.
It was in 1927 that he developed the first quartz clock while working with J.W. Horton. The clock used a block of crystal, stimulated by electricity, to produce pulses at a frequency of 50,000 cycles per second. [5] A submultiple controlled frequency generator then divided this down to a usable, regular pulse that drove a synchronous motor. [5]