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Automatic Train-Stop
Patent for Automatic Train-Stops "particularly to a system operable in connection with well-known airbrake systems to apply the airbrakes, and shut off the power when an accident of a predetermined character occurs." (lines 10-14) including instructions and illustrations.
Date:
May 16, 1916
Creator:
Estes, Betram P.
System:
The Portal to Texas History
Generator for Acetylene Gas
Patent for a new and improved generator for acetylene gas.
Date:
November 16, 1897
Creator:
Williams, Benjamin F.
System:
The Portal to Texas History