UNT Libraries Government Documents Department - 3 Matching Results

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Electric Motor.

Description: 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.
Item Type: Refine your search to only Patent

Pencil-Sharpener.

Description: 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
Item Type: Refine your search to only Patent
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