File:Rotary dump.jpg

Rotary_dump.jpg (590 × 194 pixels, file size: 66 KB, MIME type: image/jpeg)

Summary

Description
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

Licensing

Public domain
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/TimeThumbnailDimensionsUserComment
current04:09, 7 April 2013Thumbnail for version as of 04:09, 7 April 2013590 × 194 (66 KB)Caseyjonz== {{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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