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4 Matching Results
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Adding-Machine
Patent for improvements to adding machines, which is key-operated and includes a vertically disposed shaft and a means to actuate the sliding plate.
Date:
January 5, 1915
Creator:
Gatewood, William F.
System:
The Portal to Texas History
Measuring and Proportioning Machine.
Patent for "a device by which the mixing of various ingredients in certain desired proportions may be easily and accurately accomplished" (lines 8-11). It is meant for industrial measuring.
Date:
May 5, 1896
Creator:
Collins, Alonzo G.
System:
The Portal to Texas History
Fan Spring-Motor
Patent for a portable fan spring motor.
Date:
January 28, 1913
Creator:
Von Hohenstein, Charles H.
System:
The Portal to Texas History
Flexible Joint
Patent for a flexible joint provides "an improved and simplified device that is simple, durable and reliable in construction and effective and efficient in operation" (lines 10-13).
Date:
November 16, 1915
Creator:
Mooney, Thomas H.
System:
The Portal to Texas History