Texas Patents - 2 Matching Results
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- Triple Valve
- Patent for a triple valve for air brakes on trains that gives the engineer more control over the brakes.
- 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).