Resource Type
Counties
3 Matching Results
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Lawn Mower
Patent for a lawn mower in which the means for adjusting the intermediate blade has been created so that a groove for a predetermined depth can be cut, and easy removal of the blade when it is desired to sharpen the same. Additionally, a ground-engaging roller is included to keep the machine at the same level so that the knife will cut into the ground at an even depth.
Date:
December 5, 1919
Creator:
Coniglio Carmelo
System:
The Portal to Texas History
Improving Oils.
Patent for a method of improving the quality of more volatile petroleum oils, such as gasoline and burning oils.
Date:
December 23, 1919
Creator:
McAfee, Almer M.
System:
The Portal to Texas History
Heel-Sweep.
Patent for a "heel sweep for a plow. The invention aims to provide a sweep which will possess great strength..."
Date:
December 16, 1919
Creator:
Kelly, George Dudley
System:
The Portal to Texas History