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Automatic Electric Alarm.
Patent for an automatic electric alarm meant to be hooked up to an automatic dry-pipe sprinkler system, and protects against fire. The alarm goes off when the air in the sprinkler pipes falls below a predetermined level. This invention also signals an alert when there is a leak in the pipes, and is an improvement on the circuit-wires for similar alarms.
Date:
January 7, 1896
Creator:
Williams, George Bayley
System:
The Portal to Texas History
Inlet Control Valve for Flush Tanks
Patent for inlet control valve for flush tanks. Invention is indented to be an improvement on inlet control valves in flush tanks by decreasing noise levels.
Date:
January 7, 1919
Creator:
Wright, William
System:
The Portal to Texas History