Collection
Serial/Series Title
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7 Matching Results
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7
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
Object Type:
Patent
System:
The Portal to Texas History
Brownwood Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1920
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Coleman Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1920
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Brady Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1920
Creator:
Geological Survey (U.S.)
Object Type:
Map
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.
Object Type:
Patent
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.
Object Type:
Patent
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
Object Type:
Patent
System:
The Portal to Texas History