| 释义 |
Definition of escapement in English: escapementnoun ɪˈskeɪpm(ə)ntɛˈskeɪpm(ə)ntəˈskeɪpmənt 1A mechanism in a clock or watch that alternately checks and releases the train by a fixed amount and transmits a periodic impulse from the spring or weight to the balance wheel or pendulum. Example sentencesExamples - Because they have no gears or escapements to disturb their regular frequency, quartz clocks are extremely accurate and have become the dominant timekeeping technology.
- However the invention of the verge escapement in Europe in the 14th century led to a revolution in mechanical clocks.
- In 1730 Harrison visited London, taking with him his gridiron pendulum and the grasshopper escapement which he had developed, and there he learnt exactly what was required to win the longitude prize.
- In general, any lantern clock with a balance wheel has had its escapement restored.
- Most clocks have the following elements: the dial and its fittings, the movement and the escapement.
- A wind-up alarm clock, for example, uses a tension spring as a drive mechanism, an escapement wheel, and the gear-driven mechanical hands moving across the clock face as a display of the time.
2A mechanism in a typewriter that shifts the carriage a small fixed amount to the left after a key is pressed and released. Example sentencesExamples - The five key subassemblies of the standard typewriter (the carriage, paper handling system, escapement, typebasket, and keyboard) are put on trucks and moved to the main assembly line where they are added to the typewriter frame.
- One of the motors drives the escapement while another is used to select the character for printing.
- In 1945 the Rochester Museum of Arts and Sciences awarded him a fellowship for the invention of an escapement for spacing typewriter characters variably according to their widths.
3The part of the mechanism in a piano that enables the hammer to fall back as soon as it has struck the string. Example sentencesExamples - Although the escapement enables the hammer to fall away from the string, the damper is not allowed to fall back and damp the string until the key is released.
Origin Late 18th century: from French échappement, from échapper 'to escape'. Definition of escapement in US English: escapementnounəˈskeɪpməntəˈskāpmənt 1A mechanism in a clock or watch that alternately checks and releases the train by a fixed amount and transmits a periodic impulse from the spring or weight to the balance wheel or pendulum. Example sentencesExamples - In general, any lantern clock with a balance wheel has had its escapement restored.
- However the invention of the verge escapement in Europe in the 14th century led to a revolution in mechanical clocks.
- A wind-up alarm clock, for example, uses a tension spring as a drive mechanism, an escapement wheel, and the gear-driven mechanical hands moving across the clock face as a display of the time.
- Most clocks have the following elements: the dial and its fittings, the movement and the escapement.
- In 1730 Harrison visited London, taking with him his gridiron pendulum and the grasshopper escapement which he had developed, and there he learnt exactly what was required to win the longitude prize.
- Because they have no gears or escapements to disturb their regular frequency, quartz clocks are extremely accurate and have become the dominant timekeeping technology.
- 1.1 A mechanism in a typewriter that shifts the carriage a small fixed amount to the left after a key is pressed and released.
Example sentencesExamples - One of the motors drives the escapement while another is used to select the character for printing.
- In 1945 the Rochester Museum of Arts and Sciences awarded him a fellowship for the invention of an escapement for spacing typewriter characters variably according to their widths.
- The five key subassemblies of the standard typewriter (the carriage, paper handling system, escapement, typebasket, and keyboard) are put on trucks and moved to the main assembly line where they are added to the typewriter frame.
- 1.2 The part of the mechanism in a piano that enables the hammer to fall back as soon as it has struck the string.
Example sentencesExamples - Although the escapement enables the hammer to fall away from the string, the damper is not allowed to fall back and damp the string until the key is released.
Origin Late 18th century: from French échappement, from échapper ‘to escape’. |