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Lubricating Device.

Description: Patent for a device that lubricates cylinders via the intake manifold that responds to small changes in pressure.
Date: August 15, 1916
Creator: McKay, Guy
Partner: UNT Libraries Government Documents Department

Screen

Description: Patent for a screen. This invention is designed to allow for an adjustable screen to over come inequalities and inaccuracies of the window frame. Illustration included.
Date: March 15, 1904
Creator: Pinkham, Delmar D.
Partner: UNT Libraries Government Documents Department

Screen

Description: Patent for a screen. This invention comprises a class of window screens with metal frames. Illustration included.
Date: March 15, 1904
Creator: Pinkham, Delmar D.
Partner: UNT Libraries Government Documents Department
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