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单词 escapement
释义

escapementn.

/ɪˈskeɪpmənt/
Forms: See also scapement n.
Etymology: < escape v. + -ment suffix; apparently first in sense 2 after French échappement.
1.
a. The action of escaping. rare.
ΘΚΠ
the world > action or operation > safety > escape > [noun]
scapea1300
escapec1300
escapingc1325
scapingc1374
evasiona1464
escapal1634
escapement1824
lam1897
1824 T. Hood Two Swans iv Hope can spy no golden gate For sweet escapement.
1864 G. A. Sala in Daily Tel. 19 Oct. Wilmington, the last avenue of escapement left open to the beleaguered South.
b. A means of escape; an outlet.
ΘΚΠ
the mind > emotion > aspects of emotion > manifestation of emotion > [noun] > outward exhibition > outlet for
outlet1625
vent1667
safety valve1817
lightning rod1834
escapement1856
1856 J. A. Froude Hist. Eng. (1858) I. iv. 327 He allowed her to go her own way, as the best escapement of a frenzy.
1857 D. Livingstone Missionary Trav. S. Afr. iii. 67 This little arm would prove a convenient escapement to prevent inundation.
1876 ‘G. Eliot’ Daniel Deronda I. ii. xi. 209 The archery ball..was not an escapement for youthful high spirits.
2.
a. Watchmaking and Clockmaking. In a watch or clock, the mechanism which intervenes between the motive power and regulator, and which alternately checks and releases the train, thus causing an intermittent impulse to be given to the regulator.Escapements are of various kinds, as the anchor-, chronometer-, crown-, dead-beat-, lever-, etc., escapement.[The French échappement (in quot. 1801 anglicized as echapement) occurs, as a current term in a paper dated 1716 printed in Machines approuvées par l'Académie (1735) III. 93; the etymological reference is to the regulated ‘escape’ of the toothed wheel from its detention by the pallet. The earliest instances of the word in English are in the form scapement n., though at the period to which they belong the verb scape v.1 was already archaic in general sense.]
ΘΚΠ
the world > time > instruments for measuring time > clock > [noun] > part(s) of
nut1428
peise1428
plumbc1450
Jack1498
clockwork1516
larum1542
Jack of the clockhouse1563
watch-wheel1568
work1570
plummeta1578
Jack of the clock1581
snail-cam1591
snail-work1591
pointer1596
quarter jack1604
mainspring1605
winder1606
notch-wheel1611
fusee1622
count-wheel1647
jack-wheel1647
frame1658
arbor1659
balance1660
fuse1674
hour-figure1675
stop1675
pallet1676
regulator1676
cock1678
movement1678
detent1688
savage1690
clock1696
pinwheel1696
starred wheel1696
swing-wheel1696
warning-wheel1696
watch1696
watch-part1696
hoop-wheel1704
hour-wheel1704
snail1714
step-wheel1714
tide-work1739
train1751
crutch1753
cannon pinion1764
rising board1769
remontoire1774
escapement1779
clock jack1784
locking plate1786
scapement1789
motion work1795
anchor escapement1798
scape1798
star-wheel1798
recoil escapement1800
recoiling pallet1801
recoiling scapement1801
cannon1802
hammer-tail1805
recoiling escapement1805
bottle jack1810
renovating spring1812
quarter-boy1815
pin tooth1817
solar wheel1819
impulse-teeth1825
pendulum wheel1825
pallet arbor1826
rewinder1826
rack hook1829
snail-wheel1831
quarter bell1832
tow1834
star pulley1836
watch train1838
clock train1843
raising-piece1843
wheelwork1843
gravity escapement1850
jumper1850
vertical escapement1850
time train1853
pin pallet1860
spade1862
dead well1867
stop-work1869
ringer1873
strike-or-silent1875
warning-piece1875
guard-pin1879
pendulum cock1881
warning-lever1881
beat-pin1883
fusee-piece1884
fusee-snail1884
shutter1884
tourbillion1884
tumbler1884
virgule1884
foliot1899
grasshopper1899
grasshopper escapement1899
trunk1899
pin lever1908
clock spring1933
1742 Philos. Trans. 1739–40 (Royal Soc.) 41 126 The teeth of the swing wheel would scape free of the pallets.
1755 Bosley Brit. Patent 698 4 Scapement.
1766 Cumming Clockmaking Index Scapement is the means by which the action of the wheels is applied to maintain vibration.]
1779 A. Rees Chambers's Cycl. (new ed.) II Escapement, in Horology. See Pallet, and Timekeeper.
1801 J. Jones tr. T. Bugge Trav. French Republic xvi. 384 Breguet, the famous watch~maker, has discovered a new echapement.
1825 ‘J. Nicholson’ Operative Mechanic 514 From the..description of the several parts of the escapement..it will be easy to see the mode of its action.
1880 S. P. Thompson in Nature 26 Feb. 398/2 Models of every form of escapement.
in extended use.1858 O. W. Holmes Autocrat of Breakfast-table in Atlantic Monthly June 105/2 Death alone can..silence at last the clicking of the terrible escapement we have carried so long beneath our wrinkled foreheads.
b. attributive, as in escapement-wheel.
ΚΠ
1830 H. Kater & D. Lardner Treat. Mechanics xiv. 194 From the action of the pallets in checking the motion of the wheel and allowing its teeth alternately to escape, this has been called the escapement wheel.
3. In a pianoforte (see quot. 1896).
ΘΚΠ
society > leisure > the arts > music > musical instrument > keyboard instrument > stringed keyboards > [noun] > pianoforte > other parts, etc.
ogee front1815
sticker1822
fall1823
string-plate1827
piano leg1852
polychord1858
agraffe1860
mopstick1870
music rest1874
check-bara1877
hammer-action1885
escapement1896
set-off1896
set-off button1896
shift1896
shifting keyboard1896
1896 A. J. Hipkins Descr. & Hist. Pianoforte 114 Escapement, a space that is left between the hammer at its full rise and the strings, necessary for the strings to vibrate and to prevent jarring.
1961 C. Clutton in A. C. Baines Musical Instruments through Ages 89 The essentials of the modern pianoforte action:..double action, a check, an escapement, and an una corda mechanism.

Draft additions 1993

The mechanism in a typewriter which controls the regular, leftward movement of the carriage between key-strokes. Cf. spacer n.1 2a.
ΘΚΠ
society > communication > printing > typing > typewriter > [noun] > spacer, mechanism controlling carriage movement
escapement1881
tab1916
tabulator1917
1866 J. Pratt Brit. Pat. 3163: Provisional Specification (1867) 5 The same movement of the rod..which causes the hammer stroke causes also an oscillation of the pallets and a movement of the escapement wheel and line frame.]
1881 Reasons for Preferring Caligraph as Writing Machine (Amer. Writing Machine Co.) 3 The lightness of the carriage reduces the friction at the escapement, and the force needed to depress the keys: another reason for the great speed of the machine.
1909 G. C. Mares Hist. Typewriter iii. 61 A new escapement, which gives unprecedented speed powers, soft, light, and pleasant touch.
1957 Encycl. Brit. XXII. 645/1 Among its original features which were still standard in machines built in the 1950s are the paper cylinder.., the escapement which causes the letter spacing, [etc.].
1986 Byte Feb. 206/3 Large office-standard machine with differential character widths and escapements.
This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2022).
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n.1779
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