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Locomotive Drifting-Valve.

Description: Patent for locomotive drifting valves to admit saturated steam from the boiler to the steam chamber of the valve chest and cylinders while the locomotive is running with the main steam throttle closed.
Date: January 8, 1918
Creator: Meister, Alfred A.; Surles, John W. & Boyle, Edmund F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Time-Switch.

Description: Patent for a time switch "which will be automatically operated to close the circuit and to open the circuit at predetermined times so that the translating devices in the circuit may be maintained energized for a predetermined length of time," (lines 10-15) including illustrations.
Date: January 15, 1918
Creator: Scholl, Max
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Charge Firing Pin

Description: Patent for a new improvement in Charge - Firing Pens by John N. Swanson. Designed for bombs and torpedoes to create a simple firing pen mechanism that is simple, yet prevents accidental detonation of munitions
Date: January 14, 1918
Creator: Swanson, John N.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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