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Car-Brake

Description: Patent for an invention that relates to innovations and improvements to railroad car-brakes.
Date: May 28, 1901
Creator: Boyers, Thomas Albert.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Guard-Rail Clamp

Description: Patent for a simple, durable and adjustable guard rail clamp for securing guard rails to the main rails of a railroad track "as at bridge approaches and opposite to frog points" (lines 11-12) without the use of drill bolt-holes.
Date: November 28, 1905
Creator: Butcher, Jasper; Thomas, James L. & Butcher, Jasper
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Permutation Lock.

Description: Patent for a new and improved combination lock. This design consists of "[a] door having at its edges the sockets formed by ribs and mouths in combination with permutation-disks, seated in said sockets and handles" (lines 5-8).
Date: June 28, 1881
Creator: Sevier, Moses Nimrod
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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