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Automatic Railway-Switch.
Patent for new and useful Improvements in Automatic Railway-Switches, "particularly to automatic railway switches for use in street railways or steam railways" (lines 13-15), including instructions and illustrations.
Date:
August 21, 1917
Creator:
Eisenberg, Louis
System:
The Portal to Texas History
Traffic-Signal.
Patent for a traffic signal apparatus for installation in automobiles, including illustrations.
Date:
August 21, 1917
Creator:
Valdes, Salvador M.
System:
The Portal to Texas History
Trailer.
Patent for "...an improved construction and arrangement of trailers and has for an object that provision of means which will allow as easy turning movement where a number of trailers are connected while admitting of strain between the various trailers, whereby they are propelled properly around a curve." (lines 5-15) including illustrations.
Date:
August 28, 1917
Creator:
Watkins, Leigh
System:
The Portal to Texas History
Cotton Tramper and Baler.
Patent for an improved cotton tramper and baler that can more efficiently compress cotton into bales that are convenient for handling and shipping.
Date:
August 7, 1917
Creator:
Crowell, Pearl K.
System:
The Portal to Texas History