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Change Houses in the Lake Superior Region
Technical paper issued by the Bureau of Mines over change and wash houses in the Lake Superior area. As stated in the introduction, "this paper, with a few exceptions, presents data acquired in a survey, made by the author, of change houses in the Lake Superior region. All buildings, equipment, and practices were studied with regard for the health and welfare of the miner" (p. 1). This paper includes tables, photographs, and illustrations.
Date:
September 1923
Creator:
Kindall, Cleve Edwin
Object Type:
Report
System:
The UNT Digital Library
Car Coupler.
Patent for car coupler heads. This object has coupler heads that, when set in position, automatically lock.
Date:
September 11, 1923
Creator:
Tucker, Roger V.
Object Type:
Patent
System:
The Portal to Texas History