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7 Matching Results
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Cranking Device
Patent for cranking device to start internal combustion engines and designed specifically for automobiles.
Date:
June 24, 1919
Creator:
Harris, Irvin F.
System:
The Portal to Texas History
Plow.
Patent for improvements in plows used for agricultural purposes with an illustration. This improvement in design is specific to "provid[ing] a plow capable of being adjusted to cause engagement thereof with the earth at varying depths" (lines 10-12).
Date:
June 24, 1919
Creator:
Marshall, Andrew Jackson
System:
The Portal to Texas History
Projectile.
Patent for projectiles, more particularly to an explosive projectile. "One of the main objects of the invention is to provide a shell of the character stated which may be produced at relatively small cost..."
Date:
June 24, 1919
Creator:
Wilkins, Willie A.
System:
The Portal to Texas History
Telegraph-Repeater
Patent for a telegraph repeater. This invention improves repeaters by eliminating lag by simplifying the apparatus which increases capacity and clarity in transmission by maintaining a larger current strength.
Date:
June 24, 1919
Creator:
McKibben, Charles W.
System:
The Portal to Texas History
Wire-Tightener.
Patent for improvements in wire-tighteners with an illustration. Specifically, the patented improvement is for a "device" that can "be used for the purpose of tightening strands of wire of a wire fence" (lines 11-14).
Date:
June 24, 1919
Creator:
Wilson, James G.
System:
The Portal to Texas History
Combined Rail-Anchor and Tie-Plate
Patent for a combined rail anchor and tie plate. The purpose of the invention is to combine the aforementioned devices to prevent rails from cutting into the ties, overturning, and spreading.
Date:
January 24, 1919
Creator:
Johnson, Robert
System:
The Portal to Texas History
Drill-Bit
Patent for an improved kind of drill bit that is more durable against rock. The bit's cutting rollers have a frusto-conical shape, and are also detachable.
Date:
January 24, 1919
Creator:
Humason, Granville A.
System:
The Portal to Texas History