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Machine For Developing Photographic Plates

Description: Patent for a machine for developing photographic plates. Illustration included.
Date: March 12, 1907
Creator: Brown, William H.
Partner: UNT Libraries Government Documents Department

Painting-Machine.

Description: Patent for an automatic device that paints large surfaces that has a reservoir for the paint, a brush that sweeps similarly to an expert painter, a mechanism that dips the brush in the paint, and an air pump that is connected to the reservoir to bring the paint to the brush. Multiple brushes and reservoirs can be used with this machine. The pump may be operated by hand or by machine.
Date: September 12, 1893
Creator: Gebhardt, William Charles
Partner: UNT Libraries Government Documents Department

Animal Trap.

Description: Patent for a new and improved animal trap. This design consists in "a platform having a rod or bar secured to its upper face, and having the ends of the choke-spring coiled thereon, pins or prongs extending from one edge of the platform for engagement with a side of a box, a box having one of its sides elevated, against which the pronged end of the platform abuts for engagement therewith, and having recesses in its opposite ends for the recession of a loop, which passes thence over the free end… more
Date: June 12, 1888
Creator: Beach, Philemon Theodore
Partner: UNT Libraries Government Documents Department
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