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Apparatus for Killing Rodents
Patent for an apparatus for killing rodents "that may be used effectively for the destruction of all animals that burrow in the ground; and it consists in a furnace for the generation of sulphurous odors or other suffocating gases and a pump for forcing the gases into the burrows of the animals . . . ."
Date:
August 22, 1882
Creator:
Palmer, Austin D.
System:
The Portal to Texas History
Wrench.
Patent for a new and improved wrench. This design "consists in the combination of the main bar, which is provided with a head having a suitable recess to catch over nuts, with a sliding head, which has two surfaces to act in connection with opposite ends of the head, but out of line with each other, and a spring-actuated catch, which catches in suitable ratchets made in the main bar, so as to hold the sliding head in position" (lines
Date:
May 22, 1883
Creator:
Hamrick, Jerome Miller.
System:
The Portal to Texas History