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5 Matching Results
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Animal-Trap.
Patent for an animal trap meant to trap animals that burrow in the ground, such as prairie dogs. The trap catches the animal when it leaves its den and the animal cannot escape the trap.
Date:
April 25, 1893
Creator:
Manning, James
System:
The Portal to Texas History
Lifeboat
Patent for a lifeboat that "prevents the boat from capsizing" (lines 19-20) or sinking.
Date:
November 25, 1919
Creator:
Rusk, Raymond
System:
The Portal to Texas History
Marker.
Patent for improvement in markers "used in filing and card index cabinets" (lines 6-7).Meant to "provide a light, simply constructed V-shaped device" (lines 11-13), to mark the location of papers or files that have been temporarily moved from a filing system.
Date:
July 25, 1916
Creator:
Wells, Spencer A.
System:
The Portal to Texas History
Pump-Filter.
Patent for a pump filter, designed for double acting air pumps, that prevents the passage of foreign matter (oil, dust, dirt) from the pump outlet.
Date:
November 25, 1913
Creator:
Miles, Ross E.
System:
The Portal to Texas History
Gripper for Printing-Presses
Patent for a gripper for printing presses designed to hold the paper during printing more effectively. Illustrations included.
Date:
January 25, 1910
Creator:
Williams, John W.
System:
The Portal to Texas History