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4 Matching Results
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Low-Water Alarm For Boilers
Patent for "improvements in low water alarms for steam boilers and more particularly to those which are operated by the heat from the steam in the boiler, after the water therein has fallen below a predetermined danger point" (lines 15-20).
Date:
January 5, 1915
Creator:
Anderson, Williamson D. & Shearer, Edward J.
System:
The Portal to Texas History
Protector for Detonator-Caps.
Patent for a detonator cap that acts as a "protecting device...to seal the inner end of the cap into which the adjacent end of the fuse is projected in use." (lines 13-16)
Date:
October 9, 1917
Creator:
Dillard, George L.
System:
The Portal to Texas History
Triple Valve
Patent for a triple valve for air brakes on trains that gives the engineer more control over the brakes.
Date:
August 13, 1912
Creator:
Anderson, Williamson D. & Shearer, Edward J.
System:
The Portal to Texas History
Selective Call for Telegraph or Telephone Lines
Patent for a device that allows the user to ring a specific telephone or telegraph line without ringing the bells at other lines.
Date:
September 30, 1902
Creator:
Palmer, William, Jr.
System:
The Portal to Texas History