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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
Chopping-Ax.
Patent for an ax that is "provided with a poll made in two sections adapted to be clamped or secured to the handle and receive a removable bit or hardened section presenting the cutting edge" (lines 16-20).
Date:
January 5, 1897
Creator:
Crabtree, James G.
System:
The Portal to Texas History