1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
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