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Valve Operating Mechanism for Presses

Description: Patent for a valve operating mechanism for presses. This invention is meant to be an improvement of baling mechanism effecting the automatic regulation and control the motor fluids. Illustrations included.
Date: December 29, 1903
Creator: Stuart, John Marcus
Partner: UNT Libraries Government Documents Department

Automatic Electric Switch

Description: Patent for an automatic electric switch. This invention consists of a series of switches and a rotary switch run by electromagnetic key operating motor. Illustration included.
Date: December 15, 1903
Creator: Guthrie, William S.
Partner: UNT Libraries Government Documents Department
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