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6 Matching Results
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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
Parachute and the Like
Patent for a parachute. Illustrations included.
Date:
July 23, 1912
Creator:
Compton, Bessie W.
System:
The Portal to Texas History
Saw Set
Patent for a saw set. This invention is designed to align cutting teeth in a uniform length. Illustration included.
Date:
December 17, 1912
Creator:
Devini, John H.
System:
The Portal to Texas History
Ditching-Plow.
Patent for a ditching plow for use in digging shallow ditches.
Date:
March 26, 1912
Creator:
Bruening, Theodore F.
System:
The Portal to Texas History