Amy Potter series specification pointer limited edition watch
1540 years, Italy's quitoriano made into one using Rotary file knife cutting devices, and will be manufactured in the gear used in watches. Prior to this, all the gears are made by craftsmen hand-built file. 1783, France by Ren?? made use of milling cutter gear cutting machine and cutting rack and internal gear attachment. ??????1820, United Kingdom-White manufacturing the first both machining of cylindrical gear and bevel gear machine processing. Until the second half of the 19th century, the gear industry is already well developed. 1835, United Kingdom-Whitworth won the worm gear hobbing machine patent; 1858, Schiller made gear hobbing machine patent; after several improvements to the 1897 Germany in Pforzheim-crafted into belt differential mechanism of hobbing machine, is satisfactorily resolved the problem of processing helical gears. In steel gear Shaper cutter, United States of Fellowes in 1897 as a Shaper. The early twentieth century, due to the needs of the automotive industry, various grinding machine one after the other. Around 1930, in the United States made shaving machine; 1956 honing machine made. Since the 1960s, modern technology in some advanced gear machine access applications, such as in a large machine tool with digital display indicates mobile content and cutting depth; in hobbing machines, gear shaping machines and grinding machine with electronic servo systems and CNC system instead of mechanical transmission chain and Exchange gear; development of the digital control non-circular gear Shaper and adaptive control of hobbing machine; in hobbing machine with an electronic sensor to detect the transmission chain movements errors and the automatic feedback compensation error, etc. ??????1884, United States of Bill Graham invented the single cutting blade machining of straight bevel gear Shaper machine; 1900, United States of Bill has designed a double cutter milling of straight bevel gear machine. Because the needs of the automotive industry, 1905 in the United States produced with two planers straight bevel gear cutting machine, also in 1913-bevel gear milling machine; in 1923, has allowed a involute spiral bevel gear milling machine; the development in the 1930s into the straight bevel gears in a pull broaching forming machine, mainly used for automotive differential gear manufacturing. The 40 's of the last century, in order to meet the needs of the aviation industry, the development of the bevel gear grinding machine. In 1944, Switzerland Earl likang company made into extended epicycloid bevel gear milling machine; from 1950 onwards, and developed the double cutter body combined milling, processing extension epicycloid gear bevel gear milling machine. ??????Aside from the top chord of the needle size tapered wheels, steel wheels, the original lines of cartridge round to drive System Center round, round, four wheel, wheel, so to escapement of escapement wheel speed, each system is closely linked with the gear. Now there are a few brands extend this rich machinery charm of gear occlusal used in the face, this technique comes from and the display. Watch the "five great system" since all and produces gears of links. ??????In 2005, the creation of an independent brand Blancier in a name of "crazy planets" watches, utilization and wheel lock set of gears, minute run time generates a "planetary" effect, very creative. Another technology-independent watchmaking brand Austria Habring2, in its modified ETA6497 cob, often hidden in the face of gear occlusal displayed, and the formation of the balance wheel rotation. And the concept is similar to the Harbring2 independent tab and the sculptor Benzinger of multiple Watch works, and we are familiar with Richard Mille RM018 RM007, etc. At the same time, brothers tab brand Gr nefeld in its complex Tourbillon, three questions on the watch's dial GMT, also participate in this fun game "gear". Not only that, like Reuge music box in deck Mermord Freres and cutting-edge independent Jorg Hysek and tab stops people for nearly two years development momentum is rather cool of Rebellion, in various forms to the drive gear and clever use of the entire design of the watch.Other news for Wednesday 13 October, 2010
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