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10 Matching Results
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10
Wood Rod Elevator
Patent for an improvement to rod lifters that prevents the rotation of the rods as well as locking jaws into their gripper positions. The locking and gripping is made more efficient and can release rods quickly.
Date:
July 27, 1920
Creator:
Davis, George F.
System:
The Portal to Texas History
Measuring Instrument for Curved Surfaces
Patent for Measuring Instrument for Curved Surfaces
Date:
December 5, 1916
Creator:
Mckinney, Elnathan J.
System:
The Portal to Texas History
Automobile-Jack
Patent for an automobile jack that lifts the vehicle so that necessary repairs can be made and that relieves constant pressure of the tires.
Date:
January 18, 1916
Creator:
Davidson, Charles Edward
System:
The Portal to Texas History
Nut-Lock
Patent for a nut lock. Illustrations included.
Date:
February 15, 1910
Creator:
Davidson, Charles E. & Mauldin, Blake I.
System:
The Portal to Texas History
Trough-Valve
Patent for an automatic float valve used in water troughs. Illustrations included.
Date:
July 6, 1909
Creator:
Mauldin, Blake I.
System:
The Portal to Texas History
Animal-Trap
Patent for an animal trap. Illustrations included.
Date:
June 25, 1907
Creator:
Nance, Joseph J.
System:
The Portal to Texas History
Vegetable Slicer And Meat Tenderer
Patent for a vegetable slicer and meat tenderer. Illustrations included.
Date:
September 6, 1904
Creator:
Holcomb, James M.
System:
The Portal to Texas History
Fastener
Patent for a fastener. This invention is an improved design for "securing the eyes to traces or tugs or fastening stirrup-leathers together" (line 9-11). Illustration included.
Date:
December 1, 1903
Creator:
Gardner, Eugene Silas
System:
The Portal to Texas History
Girth
Patent for the improved securing or removal of a horse saddle, with illustrations.
Date:
March 25, 1902
Creator:
Owens, Robert. L.
System:
The Portal to Texas History
Pump.
Patent for a new and useful improvements in pumps.
Date:
March 15, 1898
Creator:
Mauldin, Alfred W.
System:
The Portal to Texas History