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Combined Harrow, Seed-Planter, and Cultivator
Patent for a combined harrow, seed-planter, and cultivator to increase the speed of planting and cultivating plants, including illustrations and instructions.
Date:
May 22, 1883
Creator:
Ellis, Robert Fuller
System:
The Portal to Texas History
Pencil-Sharpener.
Patent for a new and improved pencil sharpener "which will be simple and inexpensive in manufacture, highly effective in use, durable in service, and a general improvement in the art" (lines 20-23), including illustrations.
Date:
March 22, 1921
Creator:
Scougale, Malcolm
System:
The Portal to Texas History
Electric Motor.
Patent for a new and improved electric motor. This design "consists, essentially, in such combination of an automatic circuit-breaker with a bar of soft iron secured centrally on a shaft journaled in bearings secured to the motor frame and rotating within a coil or helix that the rotation of said bar will continuously make and break the circuit, and that the action of the circuit-breaker will cause the continuous rotation of the bar" (lines 17-26).
Date:
June 22, 1886
Creator:
Emley, James E.
System:
The Portal to Texas History