16,891 Matching Results

Search Results

Results: 1 - 24 next

Apparatus for Calcining Plaster

Description: This patent is for an apparatus for calcining plaster of any kind. Or an apparatus that keeps clean the inner surface of a revoluble drum for ventilating the drum during the calcining operation. The apparatus also provides for easily removing the material after the completion of the cooking operation (Lawrence, 1902).
Date: unknown
Creator: Lawwrence, Ambrose
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Non-Explosive Oil-Container.

Description: Patent for a protective screen of refractory filaments for "containers holding inflammable, explosive fluids such as naphtha, benzin, gasolene, etc." (lines 10-12)
Date: December 12, 1911
Creator: Ziller, Robert L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Photographic-Printing Device.

Description: Patent for a new photographic-printing device featuring an improved apparatus, as well as new exposure and printing capabilities, including illustrations.
Date: February 20, 1906
Creator: Brown, William H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Watch-Charm.

Description: Patent for watch charms or badges with "interchangeable emblems" (lines 11-12) to facilitate on-demand charm or badge creation through a separate stock of emblem carriers and the "interchangeable emblems."
Date: October 31, 1911
Creator: Friedman, Bernhard Z.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Coffee-Pot.

Description: Patent for coffee pot attachment to prevent coffee grounds from getting into the coffee pot's spout.
Date: January 2, 1912
Creator: Voyles, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electric Time-Switch.

Description: Patent for an electric, switch-operated construction functioning for timer-controlled circuit completions and breaks, including illustrations.
Date: July 3, 1906
Creator: Chappel, James. M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Headlight.

Description: Patent for "an electric head-light which will adjust the carbons of the arc lamp without the usual vibration" (lines 12-14) and be more durable and efficient.
Date: October 31, 1911
Creator: Dooley, Robert M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Boiler

Description: Patent for a steam boiler "to provide simple and effective means for quickly generating steam by exposing the water fully to the caloric influence of the furnace or fire in the latter through the medium of radial tubular attachments" (lines 9-14), including illustrations.
Date: September 3, 1901
Creator: Hensley, Frank Alfred
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve or Cut-Off for Tanks

Description: Patent for Valve or Cut-off for Tanks. Improved valve or cut-off for tanks especially discharge valves. Few parts, easy to assemble, easy to operate, intended for extended use.
Date: July 2, 1903
Creator: Leithauser, Peter Jerome; Leithauser, Peter J. & Leithauser, P. J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Phonograph-Machine.

Description: Patent for a new phonograph machine with improvements of sound-box-transversing mechanisms and uniformity of movements, including illustrations.
Date: April 17, 1906
Creator: Dubinski, Benjamin.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Door-Saddle.

Description: Patent for new and improved door saddles, which consists "of a longitudinal and cross-grooved arrangement of parts coacting with inclined surfaces and shields to cause a perfect drainage of water" (lines 11-15), including instructions and illustration.
Date: July 13, 1897
Creator: Vogel, Thomas.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electric motor.

Description: Patent for improved electric motor used in motor vehicles "which may be associated directly with the driving-wheel of a motor-vehicle" (lines 40-41), bypassing the need for other power-transmitting mechanisms. Includes instructions and illustrations.
Date: July 20, 1897
Creator: Perret, Frank A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car-Brake.

Description: Patent for improvement to train brakes by using a car brake apparatus.
Date: July 21, 1885
Creator: Sledge, Clarence Linden
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cotton-Press

Description: Patent for improvements in the construction of steam cotton presses using a change in the frame and use of hydraulic-pressure pumps to operate the press. The pumps are driven by steam
Date: October 15, 1889
Creator: Turnpaugh, James William
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Wood Pavements.

Description: Patent for a new and improved construction of Bois D'Arc Pavement, which uses two layers of planks that cross at right angle as a base, sand to hold bois d'arc blocks in place and fill gaps in between, and coal-tar covering planks to prevent sand from shifting. It includes illustrations.
Date: January 14, 1879
Creator: Shellenberger, Samuel Luther
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Door-Securers.

Description: Patent for a new and improved safety-locks for doors which consists of only three parts: a screw with sharp points, a nut, and a guard pivoted to the nut. It includes illustrations.
Date: January 21, 1879
Creator: Hine, Miller J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spark-Arrester.

Description: Patent for the "construction of a spark-arrester adapted to the smoke-stack of any locomotive" (lines 12-13) detailing a new and better combination and arrangement of plates and screens.
Date: February 10, 1880
Creator: Wiggin, John E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Child's Crib

Description: Patent for new "suspended cribs or cradles for the use of children" (lines 17-18) including instructions and illustrations.
Date: June 8, 1880
Creator: Brown, Fred Harvey
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Condenser

Description: Patent for "the construction of surface-condensers for condensing steam, condensing cooling ammonia-gas, and other purposes" (lines 17-20) including instructions and illustrations.
Date: June 15, 1880
Creator: Lee, Charles Brogden
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen