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Pocketwatch_movement.png ‎(784 × 257 pixels, file size: 31 KB, MIME type: image/png)

Summary

Description
English: Drawing of an antique pocket watch movement, from an 1891 encyclopedia. This type of movement, with a verge escapement and a fusee was used in watches from around 1600 to the early 1800s. Labelled parts, from accompanying text: (a) mainspring barrel, (b) fusee, (c) center (hour) wheel, (c') center wheel pinion, (d) third wheel, (e) fourth or contrate wheel, (f) crown wheel, (h) balance wheel (the pallets are also labelled h), (i) minute hand, (j) hour hand, (k,l) cannon pinion, (m) minute wheel pinion, (n) minute wheel, (v) verge. Alterations to image: removed figure number, and converted to 32 greyscale PNG.
Date
Source Downloaded June 28, 2008 from Park Benjamn, ed. (1891) Appleton's Cyclopedia of Applied Mechanics, Volume 2, D. Appleton & Co., New York, USA, p.903, fig.4217 on Google Books
Author Park Benjamin
Permission
(Reusing this file)		 Public domain - Park Benjamin died in 1922

Licensing

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Captions

Antique pocket watch movement

Items portrayed in this file

depicts

File history

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Date/TimeThumbnailDimensionsUserComment
current10:47, 29 June 2008Thumbnail for version as of 10:47, 29 June 2008784 × 257 (31 KB)Chetvorno{{Information |Description={{en|1=Drawing of a verge fusee Wikipedia:pocket watch movement, from an 1891 encyclopedia. }} |Source=Downloaded June 28, 2008 from [[http://books.google.com/books?id=jEUOAAAAYAAJ&pg=PA903 Park Benjamn, ed. (1891) ''App

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