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Improvements in Manufacture of Organic Solvents
Patent for new improvements to the manufacture of organic solvents. Specifically as it it relates to the treatment of acetone oils with catalysts for the purpose of converting the ketones contained within the acetone oil into alcohol.
Date:
December 5, 1914
Creator:
Hibbert, Harold
Object Type:
Patent
System:
The Portal to Texas History
[Letter from Andrew McClintock to Jeane, December 23, 1914]
Letter from Dan to Jeane discussing a Christmas greeting from Dan wishing her a jolly time on Christmas day.
Date:
December 23, 1914
Creator:
McClintock, Andrew H.
Object Type:
Letter
System:
The Portal to Texas History
Scouting, Volume 3, Number 15, December 1, 1915
Semi-monthly publication of the Boy Scouts of America, written for Boy Scout leaders, officials, and others interested in the work of the Scouts. It includes articles about events and activities, updates from the national headquarters, topical columns and essays, and news from various chapters nationwide.
Date:
December 1, 1915
Creator:
Boy Scouts of America
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Production of Chlorinated Hydrocarbons.
Patent for the new and improved production of Chlorinated Hydrocarbons; "[t]his invention relates to the production of dichlorinated hydrocarbons of the ethylene series, and particularly to the production of mixtures of dichlorinated hydrocarbons containing dichlor-ethylene and dichlor-propylene from mixtures of ethylene hydrocarbons containing ethylene and propylene." (lines 13-20)
Date:
December 10, 1915
Creator:
Brooks, Benjamin T. & Smith, Dillon F.
Object Type:
Patent
System:
The Portal to Texas History