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Trick-Pipe.
Patent for a trick pipe, which has a lid over the pipe bowl that ordinarily would blow off when the pipe is blown into, but when put in the trick position will seal itself on no matter how hard the person blows.
Date:
April 7, 1908
Creator:
Judson, Fred Irving
System:
The Portal to Texas History
Oil Burner
Patent for an improved oil burner design that uses steam to heat and vaporize the oil, mixing with the oil for more efficient burning, including an illustration.
Date:
April 7, 1914
Creator:
Tinkham, George F.
System:
The Portal to Texas History
Disk Plow.
Patent for "a new and useful improvement in disk plows, the object being to construct a plow of the kind described in which the resistance encountered by the main cutting or master disk in operation is counteracted by oppositely-disposed disks, one of which acts as a subspoiler, the other as a jointer, making a partial penetration of the land, which is followed by the master-disk in the succeeding furrow." (Lines 24-33) Includes instructions and illustrations.
Date:
April 7, 1896
Creator:
Stewart, John A.
System:
The Portal to Texas History