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Development of Aeronautical Engines by the Army and Navy
Different aircraft engines are categorized as being of interest to only the Army or Navy or to both armed services. A listing of the different engines is presented along with some statistics, namely, horsepower.
Date:
March 3, 1921
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Rolling Fender
Patent for improvements in rolling fenders. The invention can be attached to an earth working device, such as a cultivator, to prevent clods of dirt being thrown and crushing small plants. Multiple discs will crush the clods and prevent the dirt from sticking to the rolling fender.
Date:
May 3, 1921
Creator:
Wright, Joseph Hansel
Object Type:
Patent
System:
The Portal to Texas History
Insecticide-Holder.
Patent for an insecticide holder having improved and "novel means for discharging the insecticide" (lines 10-11).
Date:
May 3, 1921
Creator:
Irwin, Herbert G.
Object Type:
Patent
System:
The Portal to Texas History
Animal Trap.
Patent for Animal Trap especially adapted for the extermination of mice and similar rodents.
Date:
1920-09-5
Creator:
Fredrick, Willaim.
Object Type:
Patent
System:
The Portal to Texas History
Fuse Block
Patent for improvements to Patent No. 1113528. Invention provides a fuse block where the fuses can be replaced by a lineman without being in close proximity to the primary circuit wires. Invention also allows various types of fuses to be used.
Date:
May 3, 1921
Creator:
Anderson, Lou Belle
Object Type:
Patent
System:
The Portal to Texas History
Lock for Automobiles
Patent for a new inexpensive, secure, and convenient to use lock for automobiles to be secured against theft, or use, while the lock is attached.
Date:
May 3, 1921
Creator:
Godbey, Walter H., Jr.
Object Type:
Patent
System:
The Portal to Texas History
Locking Device for Motor-Vehicles.
Patent for motor vehicle locking device to prevent theft or unauthorized use of motor vehicle. Suited for motor vehicles with the "throttle and spark levers below the steering wheel" (lines 18-19).
Date:
May 3, 1921
Creator:
Harris, Robert E.
Object Type:
Patent
System:
The Portal to Texas History
Removable Pass-Book.
Patent for a book with a removable cover that lies flat when open and fits within a pocket. Particularly suited for bank books, also known as passbooks.
Date:
May 3, 1921
Creator:
Exline, Marcus P.
Object Type:
Patent
System:
The Portal to Texas History
Self-Closing Bundle-Receptacle.
Patent for a receptacle basket that attaches to the side of an automobile and closes automatically using springs and hinges.
Date:
May 3, 1921
Creator:
Cardwell, Charles E.
Object Type:
Patent
System:
The Portal to Texas History