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in subjects: "pump rods"  
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Pump Rod Coupling

Description: Patent for pump rod coupling. This invention is designed to couple adjacent ends of pistons or pumps. Illustration included.
Date: March 19, 1907
Creator: Fletcher, Homer M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Equalizer for Pump Rods

Description: Patent for an equalizer for pump rods. This invention is designed to "assist in elevating the column of water in a pump, is designed to sustain the pump rod in its fixed position" (line 11-14). Illustration included.
Date: June 13, 1911
Creator: Johnson, Robert H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Clamp

Description: Patent for a clamp. This invention is used for pump-rods, well-tubes, and like implements. Illustration included.
Date: February 12, 1907
Creator: Imhoff, Louis P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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