Texas Patents - 3 Matching Results

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Equalizing Device for Pump-Rods.

Description: Patent for an improved equalizing device for pump-rods used in hand or windmill pumps that increases the operating efficiency and decreases the manufacture cost of the device.
Date: April 10, 1906
Creator: Shipman, John Davis
Partner: UNT Libraries Government Documents Department

Spring Axle

Description: Patent for an axle to provide assistance to the wheel to adapt to the irregularities of the surface.
Date: June 10, 1913
Creator: Coggin, Charley J.
Partner: UNT Libraries Government Documents Department
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