File:Horizontal Retorts with Stoking Machine.PNG

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Summary

Description	English: The use of a stoking machine in the manufacture of coal gas.
Date	20 June 2012
Source	Gas and Gas Making, Sir Isaac Pitman & Sons, Ltd., London, 1918, page 28
Author	W. H. Y. Webber

Licensing

Public domain	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.	United States
	This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.