Suspension-Bridge.

Suspension-Bridge.

Date: January 23, 1894
Creator: Greer, William Henry Clay
Description: Patent for a suspension bridge that improves on a previous patent granted to the inventor (No. 411,499). This patent is meant to "decrease the vertical motion in floor of min span of bridge, thereby adding stability thereto; to provide for a new and improved anchorage for the suspension cables of the bridge; and, furthermore, to improve certain details of construction" (lines 15-20).
Contributing Partner: UNT Libraries Government Documents Department
Quick-Speed Steam-Engine.

Quick-Speed Steam-Engine.

Date: May 15, 1894
Creator: Devoissaud, John P.
Description: Patent for a simple, efficient, and high pressure quick speed steam-engine that maximizes power with the minimum amount of steam.
Contributing Partner: UNT Libraries Government Documents Department
Steam-Engine Governor.

Steam-Engine Governor.

Date: May 15, 1894
Creator: Devoissaud, John P.
Description: Patent for a governor meant to be used with a double cylinder single-action steam engine of Devoissaud's invention. It has "a plate-like governor valve having suitable steam ports, is introduced within a vertical channel formed in the single head plat that closes one end of two steam cylinders, which are located in the same vertical plane on a bed-plate; said valve being directly attached to, and controlled by the governor, for the alternate introduction of steam directly through the cylinder head into the two cylinders, for the actuation of working parts of the steam engine" (lines 17-27).
Contributing Partner: UNT Libraries Government Documents Department
Motor.

Motor.

Date: September 1, 1885
Creator: Chisholm, Toliver Lynn
Description: Patent for a new and improved motor. This design "relates to improvements in motors in which a screw or spiral operates in conjunction with suitable gearing; and the object of my improvement is to convert a vertically-reciprocating motion into a rotary for driving any light machinery" (lines 15-20).
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Churns.

Improvement in Churns.

Date: January 1, 1878
Creator: Davis, Henry T.
Description: Patent for improvements in churns with specific improvements in dasher-rods and lids. This patent includes illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Earth-Boring Machines.

Improvement in Earth-Boring Machines.

Date: January 1, 1878
Creator: Yarborough, William H.
Description: Patent for improvements in earth-boring machines with new design and connections, including illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Earth-Augurs.

Improvement in Earth-Augurs.

Date: November 20, 1877
Creator: Yarborough, William H.
Description: Patent for a new auger design for "boring and excavating wells" (lines 15-16), including illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Ventilators.

Improvement in Ventilators.

Date: December 21, 1875
Creator: Moyer, Alexander L.
Description: Patent for improvement in ventilators which combines a bell-mouthed vane with white induction and black eduction pipes for the purpose of introducing fresh air and eliminating foul air from an enclosed area.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Car-Couplings.

Improvement in Car-Couplings.

Date: June 29, 1875
Creator: Ramage, Charles E.
Description: Patent for improvement in car-couplings, including description and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Presses.

Improvement in Presses.

Date: February 10, 1874
Creator: Fields, John W.
Description: Patent for new improvement in press, including illustration.
Contributing Partner: UNT Libraries Government Documents Department
FIRST PREV 1 2 3 4 5 NEXT LAST