UNT Libraries Government Documents Department - 3 Matching Results

Search Results

Results: 1 - 3

Automatic Train Stop

Description: 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.

Cigar or Cigarette Holder

Description: 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.

Torpedo-Guard.

Description: 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.
Back to Top of Screen