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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 authorUnknown author
Permission
(Reusing this file)		 Public domain in USA - Published in USA prior to 1923

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United States
United States
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Date/TimeThumbnailDimensionsUserComment
current19:16, 16 February 2011Thumbnail for version as of 19:16, 16 February 2011538 × 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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