File:Screw demonstrator.png
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Summary
| Description |
English: Drawing of a simple machine to demonstrate the action of a screw, from a 1912 scientific instrument catalog. It consists of a threaded shaft, threaded through a stationary mount. As the crank on the left is turned, the shaft moves axially through the hole. |
| Date | |
| Source | Downloaded 2011-02-15 from Physical Apparatus Catalog No. 50, Max Kohl A.G., Chemnitz, Germany, 1912, p. 313, fig. 52237 on Instruments for Science 1800-1914 collection, Smithsonian Institution website |
| Author | Unknown author |
| Permission (Reusing this file) |
Public domain in USA - Published in USA prior to 1923 |
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, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:16, 16 February 2011 | | 538 × 350 (31 KB) | Chetvorno | {{Information |Description=Drawing of a machine to demonstrate the action of a screw, from a 1914 scientific instrument catalog. |Source=Downloaded 2011-2-15 from [http://www.sil.si.edu/digitalcollections/trade-literature/scientific-instruments/files/ |
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