File:Going barrel.svg
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Size of this PNG preview of this SVG file: 650 × 270 pixels. Other resolutions: 320 × 133 pixels | 640 × 266 pixels | 1,024 × 425 pixels | 1,280 × 532 pixels | 2,560 × 1,063 pixels.
Original file (SVG file, nominally 650 × 270 pixels, file size: 64 KB)
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| Description | Drawing of a 'going barrel' type mainspring barrel in a watch, sectioned through the axis. The mainspring is shown fully wound, tight around the winding arbor. The wheel attached with screws at top is the ratchet, to prevent the mainspring from unwinding. This was from a keywind pocketwatch; the winding arbor (axle) extended to a squared off section (not shown) accessible through a hole in the back. A key was inserted through the hole, fitted on the shank, and turned to wind the watch. Besides the arbor, this is similar to a mainspring barrel in a modern watch. Alterations: removed caption, sharpened, converted to PNG. |
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Constructed SVG duplicate. The original can be viewed here: Going barrel.png:  . Modifications made by Michael Oberlin.
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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, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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Original upload log
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This image is a derivative work of the following images:
- File:Going_barrel.png licensed with PD-US
- 2007-12-07T08:21:54Z Chetvorno 683x306 (17697 Bytes) {{Information |Description=Drawing of a 'going barrel' type watch mainspring barrel. The drawing is a section through the axis. Alterations: removed caption, sharpened, converted to PNG. |Source=downloaded from [http://book
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:15, 28 September 2011 | | 650 × 270 (64 KB) | Mighty archemedes (talk | contribs) | {{Information |Description=Drawing of a 'going barrel' type mainspring barrel in a watch, sectioned through the axis. The mainspring is shown fully wound, tight around the winding arbor. The wheel attached with screws at top is the ratchet, to prevent t |
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