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in subjects: "doors"  
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Construction of Doors or Window-Sashes.

Description: Patent for "improvements in the construction of doors and window-sashes, the object being to provide a door or window-sash which shall be constructed of two pieces of timber united by means of a key to prevent warping or twisting" (lines 8-13). The panel of the door or the pane of glass can also be united by the key. This design lightens and cheapens doors and window-sashes.
Date: July 28, 1896
Creator: Cordray, Henry A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lock for Sliding Doors.

Description: Patent for a new and improved lock. This design consists "[i]n a lock, the combination of the latch, the spring pressing upon it, and the trip-lever, provided with upper and lower arms and the former serving as a seat for the spring and the latter having a projection for the key to act upon" (lines 97-102).
Date: November 10, 1885
Creator: Hayden, Miles & Dixon, William Cason
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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