File:Rotary dump.jpg
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Rotary_dump.jpg (590 × 194 pixels, file size: 66 KB, MIME type: image/jpeg)
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[edit]DescriptionRotary dump.jpg |
English: Drawing of a rotary dump, a machine used to unload coal from a mine car. The dump is installed inside a coal tipple. A mine car loaded with coal is positioned inside the dump (see illustration on the left). The dump is then operated to tip the car and unload the coal into a chute beneath the tipple (right illustration). |
Date | |
Source | Ketchum, Milo S. (1913). "The Design of Mine Structures." (New York: McGraw-Hill) p. 154. |
Author | illustrator not specified |
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[edit]Public domainPublic domainfalsefalse |
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Rotary_dump.jpg |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:09, 7 April 2013 | ![]() | 590 × 194 (66 KB) | Caseyjonz (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{en|1=Drawing of a rotary dump, a machine used to unload coal from a mine car. The dump is installed inside a {{w|coal tipple}}. A mine car loaded with coal is positioned inside the dump (see illustrat... |
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