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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.
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Partner: UNT Libraries Government Documents Department

Tie-Spacer.

Description: Patent for improvement on tie-spacers when loaded on trucks for the process of creosoting ties. Allowing for treating fluid to flow between all sides of each tie when loaded, including illustrations.
Date: October 28, 1919
Creator: Sommerlatte, Joseph A.
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Partner: UNT Libraries Government Documents Department

Nut-Lock.

Description: Patent for a strong, durable, and inexpensive nut lock that securely locks a nut onto a threaded bolt and can be easily unlocked. It also is simply constructed. It consists of a plank-like spring tongue that fits over the bolt and under the nut.
Date: November 28, 1893
Creator: Taini, John
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Partner: UNT Libraries Government Documents Department

Sash-Fastener.

Description: Patent for a Sash Fastener that can be used to improve the sash holders function with a simplifying construction.
Date: November 28, 1905
Creator: Dunn, Aaron Washington
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Partner: UNT Libraries Government Documents Department

Earth-Auger.

Description: Patent for an earth-auger meant to dig post-holes. It has a lateral "cutting-edge and a continuous cutting-edge from its point to its top, said cutting-edge receding continuously and uniformly from the axis of rotation of the tool, whereby it cuts from the center outward and gradually widens or increases the diameter of the hole at any given point until this point is reached by the periphery of the ears or basin at the top of the bit, and, furthermore, to provide means for packing or smoothing … more
Date: January 28, 1896
Creator: Pederson, Hans
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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