UNT Libraries Government Documents Department - 5 Matching Results

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Improvement in Gas-Furnaces and Forges.

Description: Patent for "an apparatus in which the gases from one or more forges, instead of passing off unconsumed into the atmosphere, enter a furnace and are burnt therein, thereby furnishing heat for the generation of steam in a boiler connected with said furnace, which steam is used to drive a fan that impels a blast into each forge, and is also used to propel an engine that operates a hammer, the exhaust from the engine being conducted to the tuyeres of the forges through pipes in which are placed red… more
Date: November 7, 1871
Creator: Morris, Joseph R.

Improvement in Screw-Taps.

Description: Patent for "a tool that shall combine the features of an expanding tap and reamer for reaming and tapping holes of different sizes" (lines 29-32) with illustrations and instructions.
Date: November 7, 1876
Creator: Melvin, Josiah Walter

Ratchet Drill

Description: Patent for rachet drill.
Date: November 7, 1916
Creator: Sherman, James M.

Washing Machine

Description: Patent for a washing machine that uses a rotary cylinder. Illustration included.
Date: November 7, 1905
Creator: Green, James J.
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