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Pipe-Wrench
Patent for a self-adjustable pipe wrench that actively adapts to the material it is applied to by means of a moveable portion of the gripping jaw, with illustrations and instructions.
Date:
May 28, 1918
Creator:
Moore, Joseph D.
System:
The Portal to Texas History
Steam-Boiler Indicator.
Patent for an improvement in steam boiler indicators to alert when the water has dropped below a specified threshold, including instructions and illustrations.
Date:
April 28, 1914
Creator:
Marrs, Vollie B.
System:
The Portal to Texas History
Gin Saw Cleaner
Patent for a gin saw cleaner. Illustration included.
Date:
March 28, 1911
Creator:
Pillow, James G.
System:
The Portal to Texas History
Combined Ruler and Paper-Cutter
Patent for a ruler that may also be used as a paper cutter. Illustrations included.
Date:
June 28, 1910
Creator:
Dibrell, Frank A.
System:
The Portal to Texas History