Image:Watch movement.png
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Watch_movement.png (619 × 463 pixels, file size: 35 KB, MIME type: image/png)
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[edit] Summary
| Description |
Drawing of a pocketwatch movement from the early 1900s, with the upper plate removed to show the parts. The numbered parts are identified in the caption as: 1.First or main wheel to which mainspring is attached 2.Second or center wheel 3.Third wheel 4. Fourth wheel 5.Escape wheel 6.Pallet, with pallet jewels 7.Lever 8.Balance 9.Hairspring 10.Roller. Alterations: removed frame and caption, sharpened. |
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| Source |
Downloaded 2007-11-30 from Harry Chase Brearley (1919) Time Telling through the Ages, Doubleday, Page & Co., New York, p.232 on Google Books |
| Date |
1919 |
| Author |
Harry Chase Brearley |
| Permission (Reusing this image) |
Public domain - published in USA before 1923 |
[edit] Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923. See this page for further explanation.
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This image might not be in the public domain outside of the United States (this especially applies in Canada, China (not Hong Kong, Macao, or Taiwan Area), Germany, Mexico, and Switzerland). The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details. |
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 06:41, 8 January 2008 | 619×463 (35 KB) | Chetvorno | ({{Information |Description=Drawing of a watch movement from the early 1900s, with the upper plate removed to show the wheelwork. |Source=Downloaded 2007-11-30 from [http://books.google.com/books?id=5Cjm14CkQZwC&pg=PA232 Harry Chase Brearley (1919) ''Time ) |
