Resource Type
Counties
4 Matching Results
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Aeroplane.
Patent for a new and useful airplane that provides the ability of the aircraft to take off from the ground at an abrupt angle. The aircraft has a supplemental propeller and jointed body to direct the machine upward in an abrupt ascent, making it especially useful in wooded areas or where obstructions prevent normal take-off.
Date:
February 3, 1920
Creator:
Cartwright, Andrew
System:
The Portal to Texas History
Tire-Oven.
Patent for a device that heats wagon and buggy wheel tires that will warm them evenly.
Date:
June 29, 1920
Creator:
Howlett, Isaac C.
System:
The Portal to Texas History
Pipe-Puller.
Patent for a device that is specially designed for pulling or lifting a drill stem that is "stuck" in a bore well.
Date:
May 18, 1920
Creator:
Simmons, John T.
System:
The Portal to Texas History
Detachable Fastener for Cylindrical Screens.
Patent for a more efficient and effective seeding device that can disconnect, reconnect, and fasten the ends of a strip of material to form a cylinder.
Date:
July 20, 1920
Creator:
Leach, William Logan
System:
The Portal to Texas History