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 County: Calhoun County, TX
 Collection: Texas Patents
Lock.

Lock.

Date: September 21, 1897
Creator: Peterson, John J.
Description: Patent for a new and improved lock which includes "certain novel constructions, combinations, and arrangement of parts" (lines 11-13) as well as illustrations and instructions.
Contributing Partner: UNT Libraries Government Documents Department
Gate.

Gate.

Date: March 3, 1891
Creator: Smith, William H.
Description: Patent for a gate that is "a structure hanging and sliding by means of rollers on an inclined cross-bar, and so connected by ropes and pulleys to stationary posts that a person approaching it on horseback or in a vehicle may easily open the gate (without dismounting) by pulling the rope, and on releasing the rope the gate will close automatically" (lines 12-19), illustration is included.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Piano-Forte Actions.

Improvement in Piano-Forte Actions.

Date: May 27, 1879
Creator: Roedern, George O. V.
Description: Patent for a new piano forte design which "consists in certain novel details of construction, arrangement, and combination of the key-lever and its fulcrum and rest, a receiving-lever, a transmitting-eccentric, a secondary hammer, a principal hammer and its rest, and a damper-action and its connections, whereby greater simplicity and efficiency are obtained" (lines 10-17) including illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Piano-Forte Actions.

Improvement in Piano-Forte Actions.

Date: April 1, 1879
Creator: Roedern, George O. V.
Description: Patent for a new piano-forte action made of sheet-metal, including illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Arrangement for Supplying Air to the Furnaces of Stem-Boilers from the Wheel-Houses of Steamers.

Arrangement for Supplying Air to the Furnaces of Stem-Boilers from the Wheel-Houses of Steamers.

Date: December 20, 1859
Creator: Brandy, Louis
Description: Patent for the "improvement in supplying air to furnaces on steamers" (lines 5-6), including illustration.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Sewing-Machines.

Improvement in Sewing-Machines.

Date: November 15, 1859
Creator: Singer, E. C.
Description: Patent for improvement in sewing-machines by using two cams, one to operate the needle-arm and another to operate the feed and shuttle movements, illustration is included.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Cultivators.

Improvement in Cultivators.

Date: May 10, 1859
Creator: Doss, William C.
Description: Patent for a triangle shaped cultivator with removable mold-boards that can be used as a plow and scraper, including illustration.
Contributing Partner: UNT Libraries Government Documents Department
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