Now he had to improve on the lever escapement, which had been invented in 1754 bythe English horologist Thomas Mudge and used in most watches since. It worked by friction,as the teeth of the gears slid over the pallet; but this arrangement needed lubrication, andas the oil degraded the watch lost time. Mr Daniels became obsessed with the tick, tock ofclocks , and how to get animpulse on both the tick and the tock that would not be affected by humidity,temperature, oil sludge or agitation. His solution, invented in 1976, was the co-axialescapement, an arrangement in which two wheels, placed one above the other, transmittedto the pallet a radial impulse that needed no lubrication and so would never stop.
接着他要完善的是叉瓦式擒纵机构。叉瓦式擒纵机构1754年由英国制表师Thomas Mudge发明,从那以后就广泛运用于大部分表中。它的表面指针由齿轮在托盘上滑动产生的摩擦带动。但是这一工作原理要求内部零件保持润滑,否则随着润滑度的磨损,报时会逐渐丧失准确性。随着研究的深入,丹尼尔斯越来越对钟表发出的滴答声着迷,这声音和银铃般的报时钟声,在他的每一处宅邸里荡漾。他还痴迷于解决如何使表获得传动又不受湿度、温度、润滑度和震动影响的问题。该问题的解决方案于1976年诞生,这便是同轴式擒纵机构。这一装置由叠置于托盘上的两个齿轮组成,两个齿轮会向托盘传递放射状的传动力而不需要任何的润滑,因此永远不会停止。
【2015考研英语阅读制表大师乔治】相关文章:
最新
2016-10-18
2016-10-11
2016-10-11
2016-10-08
2016-09-30
2016-09-30