Image:Tiangong Kaiwu Chain Pumps.jpg
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Two illustrations of Chinese hydraulic-powered chain pumps. The top illustration shows a horizontal waterwheel acting upon a horizontal and vertical wheel and axle that rotates a square-pallet chain pump bringing water from a stream up to the irrigation canal. The bottom illustration shows a vertical waterwheel as part of a cylinder-wheel chain pump bringing water up from a river to an irrigation canal of a crop field.
These illustrations were printed in the Tiangong Kaiwu encyclopedia of 1637, written by the Ming Dynasty encyclopedist Song Yingxing (1587-1666). They can be found on pages 15 and 18 of E-tu Zen Sun and Shiou-Chuan Sun's English translation of the Tiangong Kaiwu (Pennsylvania University State Press, 1966).
This image was taken from
http://www.chinawater.net.cn/kjcg/CWSArticle_View.asp?CWSNewsID=17233
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The two-dimensional work of art depicted in this image is in the public domain in the United States and in those countries with a copyright term of life of the author plus 100 years. Under American copyright law, originality of expression is necessary for copyright protection, and a mere photograph of an out-of-copyright work may not be protected under American copyright law. |
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 23:48, 24 July 2007 | 320×775 (66 KB) | PericlesofAthens (Talk | contribs) | (Two illustrations of Chinese hydraulic-powered chain pumps. The top illustration shows a horizontal waterwheel acting upon a horizontal and vertical wheel and axle that rotates a square-pallet chain pump bringing water from a stream up to the irrigation c) |
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