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Furnace.
Patent for a furnace that is simple, durable and inexpensive to construct. The body is constructed of a rectangular base and the casing is composed of semi-circular plates with a series of flanges that are bolted together with door and flue more easily connected. Includes instructions and illustrations.
Date:
November 3, 1891
Creator:
Johnson, John H. & Moran, James
System:
The Portal to Texas History
Shaft-Coupling.
Patent for "an improvement in shaft couplings ... primarily designed for installation on the shafting of steamships and the like" (lines 9-13), including illustrations and instructions.
Date:
June 3, 1919
Creator:
Nelson, Gustaf Theodore
System:
The Portal to Texas History