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in subjects: "Science and Technology - Tools"  
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Flash-Light

Description: Patent for flashlights to provide certain new and useful improvements designed and adapted for use in the handles of umbrellas, canes, and the like. The invention comprises a metallic tube or sleeve adapted to be inserted into a bore of an umbrella handle or sleeve having an enlargement in which a bulb carrier is mounted and over the end of the lens. The configuration will not interfere with the free use of the handle. There is a special construction of the circuit closer to the metallic sleev… more
Date: August 24, 1915
Creator: Matthies, Gustav & Rehberg Jr., August
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Partner: UNT Libraries Government Documents Department

Electric Program-Clock.

Description: Patent for "certain new and useful Improvements in Electric Time-Reminder Clocks" (lines 5-7) which are "designed for service in furnishing notice to the user of acts to be performed at previously-specified times or periods" (lines 12-14).
Date: September 24, 1901
Creator: Dubinski, Benjamin
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Partner: UNT Libraries Government Documents Department

Clamp

Description: Patent for clamps used in framing and forming of concrete construction. The clamps are easily removed and reused eliminating the need for wooden framing used in the past.
Date: February 24, 1920
Creator: Ferguson, William D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car-Coupling.

Description: Patent for improvements in car-couplings by providing "a coupler which will without any adjustment couple two cars whose draw-heads are of different heights.” (lines 17-19) Illustration is included.
Date: March 24, 1891
Creator: Thompson, James A. M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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