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6 Matching Results
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Electric motor.
Patent for improved electric motor used in motor vehicles "which may be associated directly with the driving-wheel of a motor-vehicle" (lines 40-41), bypassing the need for other power-transmitting mechanisms. Includes instructions and illustrations.
Date:
July 20, 1897
Creator:
Perret, Frank A.
System:
The Portal to Texas History
Wick Material (Illinois Patent).
Patent for wick material, "composed of raw fibrous matter in layers or slivers in adhesive substance" (lines 16-17).
Date:
July 1, 1890
Creator:
Chapin, Myron H.
System:
The Portal to Texas History
Propeller
Patent for a boat propeller that does not create a vacuum behind it and is more efficient than other propellers.
Date:
July 23, 1912
Creator:
Blake, David H.
System:
The Portal to Texas History
Process of Desulfurizing Oil or Distillate
Patent for a process of desulfurizing oil or distillate.
Date:
July 5, 1904
Creator:
Amend, Otto P.
System:
The Portal to Texas History
Engraving-machine.
Patent for improvements to an engraving machine. Illustrations included.
Date:
July 1, 1902
Creator:
Crane, Walter E.
System:
The Portal to Texas History
Process of Treating Roads, &c.
Patent for Improved Process for Treating Roads, etc., "to provide means for preventing or retarding the formation of dust on roadways, and...to effect the formation of a road or road surface" (lines 8-13).
Date:
July 29, 1913
Creator:
Robeson, Jacob S.
System:
The Portal to Texas History