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Water-Heater.

Description: Patent for a compact gas powered water heater that runs the water through firmly attached tubes that expand and contract with the water temperature and are placed in between heating elements. The machine can also be packed with ice to cool water in the tubes.
Date: June 18, 1907
Creator: Haynie, Brooks
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grapple

Description: Patent for providing a cheaper version of removing pipes or tubing from wells.
Date: March 18, 1913
Creator: Drake, Charles W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Device for Cutting Boiler Tubes.

Description: Patent for a new device for cutting boiler-tubes. This design "is to be adjusted a distance from the head sufficiently in excess of the thickness of the tube sheet to prevent injury to the latter. The device is then inserted into the end of the tube, with the head abutting against the outside of the tube-sheet. By turning the screw the wedges may then be drawn toward each other, thus forcing the block carrying the cutter outward. The device is now to be turned by the shank alternately with feed… more
Date: April 18, 1882
Creator: Franklin, James Johnson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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