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Books > Professional & Technical > Industrial chemistry & manufacturing technologies > Other manufacturing technologies > Precision instruments manufacture > Clocks & chronometers
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The Practical Watch Escapement (Hardcover, New)
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The Practical Watch Escapement (Hardcover, New)
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One of George Daniels's central contributions to horology is his
co-axial escapement. Having observed that the dominant lever
escapement begins to change its rate after a year or two -- a
disturbance caused by the sliding action of the impulse elements of
the escapement -- Daniels set about developing a mechanism that
avoided this problem. The result of his efforts was the co-axial
escapement, a mechanism in which he sought to combine the strengths
and eliminate the deficiencies of existing watch escapements, the
lever escapement foremost among them. First devised in 1977, today
it remains largely the same as fitted in watches of Daniels's own
manufacture, as well as those of several wrist-watch manufacturers.
This book explains the action of the escapement in terms accessible
to both expert and layman, and is accompanied by a series of
detailed line drawings.
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