Practical Watch Escapement

Inbunden, Engelska, 2016

418 kr

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Beskrivning

The Practical Watch Escapement explains the action of the escapement in terms accessible to both expert and layman.One of George Daniels' 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' own manufacture, as well as those of several wrist-watch manufacturers.The text is accompanied by a series of detailed line drawings.

Produktinformation

Utgivningsdatum:2016-11-23
Mått:198 x 268 x 16 mm
Vikt:550 g
Format:Inbunden
Språk:Engelska
Antal sidor:96
Förlag:Philip Wilson Publishers Ltd
ISBN:9780856676871

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Tillverkningsteknik inom Naturvetenskap och teknik

Mer om författaren

George Daniels, CBE, DSC (HONS), FSA, FCGI, FBHI, FAWI was a practicing horologist with over fifty years experience in both antiquarian and modern watchmaking, and a pastmaster of the Worshipful Company of Clockmakers. Amongst his awards for contribution to the art and science of watchmaking - including the design of his own escapements - are the Tompion Gold Medal, The British Horological Institute Gold Medal, The City and Guilds of London Gold Medal, The Arts Sciences and Learning Award of the City of London and the Victor Kullberg Medal of the Stockholm Watchmakers' Guild.

Innehållsförteckning

ForewordIntroductionGeneral PrinciplesVerge EscapementCylinder EscapementVirgule EscapementDuplex EscapementLever EscapementEscaping AngleLever AngleThe Draw AngleThe Balance RollerThe Pallets and Escape WheelDetent EscapementThe Unlocking AngleThe Angle of DrawThe Locking StonePivoted DetentThe Impulse AngleRadial Impulse at Each VibrationRobin EscapementEchappement NaturelSummaryDetached Escapements without lubricantIndependent Double Wheel Escapement Double Radial Impulse with Single WheelCo-Axial EscapementExtra Flat Co-Axial EscapementSymmetrical Co-Axial EscapementPhotographic Plates