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Pump-Jack.

Description: Patent for an improved version of "operating pumps and similar apparatus" (lines 8-9).
Date: January 30, 1906
Creator: York, Francis M.
Partner: UNT Libraries Government Documents Department

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
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