File:Mainspring Chinese uncoiled.jpg
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Summary
| Description |
English: An uncoiled mainspring from a Seagull ST16 watch movement, which is an automatic (self-winding) movement. The mainspring is attached to a circular steel expansion spring, often called the "bridle" (seen on the top left), which presses against the inside wall of the barrel, which has serrations or notches to hold it until the bridle deliberately slips to prevent over tensioning the mainspring. This spring is seen coiled in the same style of movement in File:Watch automatic mainspring.jpg. |
| Source | Own work |
| Author | Hustvedt |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:25, 5 March 2009 | | 2,775 × 1,335 (352 KB) | Hustvedt | {{Information |Description={{en|1=An uncoiled mainspring from a Seagull ST16 movement, which is an automatic movement. This spring is seen coiled in File:Watch automatic mainspring.jpg.}} |Source=Own work by uploader |Author=[[User:Hustvedt|Hustvedt] |
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