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AIR-BREAK SIGNALING AND RELEASEING DEVICE.

Description: Patent for an improvement in air-brake release-valve in trains to signal train crews and release the breaks if they become set for any reason, or stuck, while the train is moving, including descriptions of the release valve and illustrations.
Date: November 4, 1902
Creator: Dukesmith, Frank H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Antifriction-Device-For-Sucker-Rods.

Description: Patent for an antifriction device designed to protect the rod (sucker rod), rope, or coupler from wear. A sucker rod joins the components of a piston pump in an oil well.
Date: November 4, 1902
Creator: Black, William Leslie
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Antifriction device for sucker rods.

Description: Patent for "an improved antifriction device for use in connection with inclosed traveling rods and the like to reduce the wear occasioned by the rubbing of the rod in its casing, and at the same time to so far reduce the area of said antifriction device which projects from the rod as to interpose the least possible obstruction to the free passage of material in the casing."
Date: November 4, 1902
Creator: Black, William Leslie
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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