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Locking Device for Car-Doors.

Description: Patent for a locking device for a sliding train car capable of locking automatically upon close, including illustrations.
Date: May 9, 1916
Creator: Tierney, Henry J.
Partner: UNT Libraries Government Documents Department

Oil-Can Spout.

Description: Patent for an oil can spout that is used as a connection to a dispensing can which serves as a spout and as a stopper. This spout is easily installed and removed when desired, this spout also prevents accidental removal while handling.
Date: September 9, 1913
Creator: Melvin, Joe D.
Partner: UNT Libraries Government Documents Department

Sliding Door for Railway Freight Cars

Description: Patent for sliding door for frieght cars, rather than doors that open outward.
Date: January 9, 1917
Creator: Tierney, Henry J.
Partner: UNT Libraries Government Documents Department

Boll Cotton Gin.

Description: Patent for an improved boll-cotton gin which gathers the cotton bolls without crushing them or intermingling the product with impurities by separating the seed cotton from the bolls and hulls.
Date: June 9, 1914
Creator: Hopper, James F.
Partner: UNT Libraries Government Documents Department
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