UNT Libraries Government Documents Department - 23 Matching Results

Search Results

Results: 1 - 23

Pump.

Description: Patent for an improved, useful, durable, and simple pump that is powered by cattle as they walk into an enclosure. It consists of a water receiving chamber with inlet openings on one end, supporting rods, a hollow pump piston with a spout, a valve on the bottom of the pump piston, a walking beam, a bridge, hinges, angle-irons, and a counterbalances weight.
Date: April 18, 1893
Creator: Clayton, James W.
Item Type: Refine your search to only Patent

Car-Coupling.

Description: Patent for a simple, durable, and safe car-coupling that will not accidentally uncouple, and can uncouple without the operator stepping between the cars. It "consists principally of a knuckle pivoted in the drawhead and provided with cam surfaces, and an arm mounted to swing and adapted to engage the said cam surfaces to open and close the knuckle" (lines 14-18). The coupling can also couple cars of different heights.
Date: September 18, 1894
Creator: Schairer, John Jacob
Item Type: Refine your search to only Patent

Windmill.

Description: Patent for an improvement to the "construction of windmills and to provide means for varying the stroke of a windmill with the velocity or force of the wind, to increase the length of the stroke as the velocity of the wind increases, and to reduce the length of stroke as the force of the wind abates." (lines 10-16)
Date: November 18, 1902
Creator: Tinney, James R.
Item Type: Refine your search to only Patent

Annuciator

Description: Patent for an annunciator. "This invention is designed for use in connection with a complete traction system" (lines 13-14). The design drives instruments via a train air system so that air pressure is constantly maintained. Illustrations included.
Date: February 18, 1908
Creator: Mayo, William C.; Houlehan, John & Briggs, George E.
Item Type: Refine your search to only Patent

Automatic Multiple Fuse Block

Description: Patent for an automatic multiple fuse block. This invention is "provided a normally inactive shunt circuit through which, when a fuse is blown, the current is diverted to an electro-mechanical means which, when the rush of current causing the fuse to blow" (16-21). Illustration included.
Date: February 18, 1908
Creator: Mayo, William C.; Houlehan, John & Briggs, George E.
Item Type: Refine your search to only Patent

Car-Wheel

Description: Patent for a car wheel made to ease turning on rounding corners and to prevent slipping due to differences in wheel sizes.
Date: February 18, 1908
Creator: Mayo, William C. & Houlehan, John
Item Type: Refine your search to only Patent

Furnace.

Description: Patent for a furnace used in steel making operations to "enable...uniform heating and the dissipation of the black spots" created on some heated materials during the heating process by means of a "lifting means or moveable hearth."
Date: May 18, 1915
Creator: Moore, Ralph S
Item Type: Refine your search to only Patent

Process and Apparatus for Separation of Ores by Flotation.

Description: Patent for a improved process and apparatus use commercially to separate ores using flotation. By "introducing a novel step in the flotation process which results in the complete breaking down of the froth and at the same time keeping the volume of water used within the smallest practical limits thus preventing the washing away of valuable concentrates by an unnecessarily large volume of water" (lines 54-60).
Date: April 18, 1916
Creator: Thompson, W. Albert & Cole, David
Item Type: Refine your search to only Patent

Valve-Spring Lifter.

Description: Patent for valve spring lifter designed for use with internal combustion engines that holds the intake or exhaust valve springs in an elevated or rigid position. Illustrations included.
Date: June 18, 1918
Creator: Mountain, Thomas O.
Item Type: Refine your search to only Patent

Irrigator

Description: Patent for an irrigator used to treat piles (hemorrhoids) and similar diseases. A nozzle delivers liquid to wash the surface of the mucus coating of the afflicted area, and then drains the liquid without obstructing the flow of the liquid. Patent includes illustrations.
Date: January 18, 1921
Creator: Phillips, Edwin R.
Item Type: Refine your search to only Patent

Snap Fastener

Description: Patent for a snap fastener for fastening snap buttons, hooks, and eyes. Intended to replace the need for sewing fasteners onto garments, particularly women's dresses
Date: January 18, 1921
Creator: Warrington, Samuel W.
Item Type: Refine your search to only Patent
Back to Top of Screen