UNT Libraries Government Documents Department - 9 Matching Results

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Automatic Railway-Gate.

Description: Patent for an automatic railway-gate or cattle-guard for use "at crossings, the entrances to tunnels, bridges or trestles, or at other places where it is desirable to guard the tracks" (lines 11-13). The invention is a simple and effective way for closing gates, can be operated from a distance, and is controlled by the wheels of passing trains.
Date: August 14, 1894
Creator: Baade, John

Ice-Cream Freezer.

Description: Patent for an ice-cream freezer which can also be used as a churn, with an improved drum that revolves and its lower half sitting in ice or hot or cold water. It has a central shaft and flat heads on the ends of the drum so it can rotate.
Date: January 14, 1896
Creator: Harton, Thomas Jefferson

Lamp Wick.

Description: Patent for a new and improved wick for oil lamps. This design "consists in forming the lamp-wick of one or more layers of mineral wool inclosed in a textile material, the whole being sewed together by a series of parallel longitudinal stitches" (lines 18-22). Employing textile material represents an improvement in capillarity over previous wicks made with refractory cement.
Date: February 14, 1882
Creator: Bèck, Gebhard

Machine for Sharpening Gin Saws

Description: Patent for a new and useful improvements in machines for sharpening gin-saws. This invention is to "provide an improved machine of the character described wherein the saws may be sharpened without removing them" (line 10-12).
Date: December 14, 1897
Creator: Bradley, James M.

Nebulizer.

Description: Patent for a nebulizer, which has a spraying mechanism for delivering medicinal sprays through a nozzle to the nose, throat, or lungs.
Date: July 14, 1908
Creator: McGregor, Ringling R.

Rotary Gang-Plow.

Description: Patent for a rotary gang-plow that has laterally movable castings, stirrups, beams working in the stirrups, axles connected to the disks, and adjustable sleeves.
Date: May 14, 1895
Creator: Willis, WIlliam Beale