Attachment for Converting Motor-Propelled Vehicles into Tractors. (open access)

Attachment for Converting Motor-Propelled Vehicles into Tractors.

Patent for a device which attaches a "tractor which can be used to draw plows, harrows, cultivators, mowers, reapers, and other agricultural implements" (lines 12-17) to motor vehicles, thus converting the motor vehicle into a tractor.
Date: July 20, 1915
Creator: Wynne, William P.
System: The Portal to Texas History
Building-Block Construction. (open access)

Building-Block Construction.

Patent for concrete blocks used for construction, including illustrations.
Date: July 20, 1915
Creator: Gray, Frank
System: The Portal to Texas History
Life-Saving Device for the Cabs of Locomotives. (open access)

Life-Saving Device for the Cabs of Locomotives.

Patent for a life-saving device for the cabs of locomotives. The device is used to safely help the engineer or fireman escape from the locomotive engine cab should danger arise. The device is used to protect an individual against fire, hot water, or some other forms of danger.
Date: July 20, 1915
Creator: Uttz, William A.
System: The Portal to Texas History
Tire-Shoe. (open access)

Tire-Shoe.

Patent for a device that fits "pneumatic tires for automobiles" (lines 8-9) in order to "prevent the slipping of a pneumatic tired wheel in snow, ice, mud, sand, or the like." (lines 10-12).
Date: July 20, 1915
Creator: McCall, Jacob Capshaw
System: The Portal to Texas History
Air-Compressor. (open access)

Air-Compressor.

Patent for "new and useful improvements for air-compressors" (lines 5-6), with instructions and illustrations.
Date: July 20, 1886
Creator: Harrold, Mahlon
System: The Portal to Texas History