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4 Matching Results
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Machine for Sharpening Cutlery.
Patent for machine for sharpening cutlery that clamps object to be sharpened in a moveable carrier in position to be reciprocated between abrading members.
Date:
November 7, 1911
Creator:
Hunter, Joseph W.
System:
The Portal to Texas History
Well Drilling Bit.
Patent for new and improved well-drilling bit. Illustration included.
Date:
March 7, 1916
Creator:
Marney, Robert A.
System:
The Portal to Texas History
Railway-Switch.
Patent for a railway switch that is triggered by a shoe on a train car.
Date:
February 7, 1911
Creator:
Rousseau, Lawrence C.
System:
The Portal to Texas History
Food Tongs
Patent for food tongs. The invention employs scoops. Illustration included.
Date:
January 7, 1913
Creator:
Wheeler, William H.
System:
The Portal to Texas History