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Wrench.
Patent for "a wrench in which the ratchet is inclosed, so that none of its parts will be exposed to the action of dust" (lines 16-18), provides ample lubrication, and ease of inspection. Includes instructions and illustrations.
Date:
June 2, 1912
Creator:
Sherman, Lothrop C.
System:
The Portal to Texas History
Mail-Handling Apparatus
Patent for a mail handling apparatus for storing and delivering mail to trains that is on an automated timer with the train schedule.
Date:
June 4, 1912
Creator:
Mainer, William L.
System:
The Portal to Texas History
Mail-Receiving Apparatus
Patent for a mail receiving apparatus for use with trains that automatically removes mailbags from the train.
Date:
June 4, 1912
Creator:
Mainer, William L.
System:
The Portal to Texas History