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Pump-Operated Device

Description: Patent for "combination with a pump-operating crank-shaft and a walking-beam operatively connected with the pump-rod, means for preventing sudden movements of the pump-rod at the ends of its strokes and for assisting in starting the rod in its reciprocations" (lines 10-15).
Date: May 28, 1901
Creator: Crawford, Charles Buchanan
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pipe-Coupling

Description: Patent for a device that allows two pipes to be connected without the need of creating threads on the end of pipes.
Date: March 8, 1902
Creator: Willmann, Joesph
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Serving-Tray.

Description: Patent for a serving tray with individual spots for various dishes, which turns on rollers intended for use at hotels, restaurants, and boarding houses.
Date: June 16, 1908
Creator: Heise, Otto
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cotton-Chopper.

Description: Patent for a new and useful improvement in cotton choppers, including instructions and illustrations.
Date: February 6, 1900
Creator: Bartels, Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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