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Automatic Train Stop
Patent for an automatic train stop. Used to simplify the construction where fewer magnets and changeable switches are necessary. To provide an automatic train control mechanism with a normally closed circuit, the breakage or disarrangement of any part that would ensure the stopping of the train.
Date:
May 21, 1918
Creator:
Bulla, Melbern B.
System:
The Portal to Texas History
Cigar or Cigarette Holder
Patent for improvements to cigar and cigarette holders so that the stub (butt) of the cigar/cigarette can be easily ejected, thereby decreasing the instances of choking. This also makes the mouthpiece easier to clean and therefore, more sanitary.
Date:
May 14, 1918
Creator:
McClintock, Herbert R.
System:
The Portal to Texas History
Torpedo-Guard.
Patent for torpedo guards that can be applied without needing to place the vessel in a dry dock, as well as giving the option of retracting the torpedo guards when not needed. Includes illustrations.
Date:
May 21, 1918
Creator:
Rolf, Frederick G.
System:
The Portal to Texas History