UNT Libraries Government Documents Department - 19 Matching Results

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Blind-Slat Fastener.

Description: Patent for improvements in blind-slat fasteners, in which it holds the blinds so that air can pass through. Illustration is included.
Date: December 14, 1909
Creator: Riley, John Brizendine

Calendar

Description: Patent for a circular perpetual calendar.
Date: April 14, 1908
Creator: Rowe, Charles E.

Centrifugal Separator.

Description: Patent for a centrifuge that can effectively and efficiently separate heavy oils from acids "with which the oil has been mixed or emulsified as a clarifying or decolorizing agent" (lines 14-16), with illustrations.
Date: March 14, 1922
Creator: Paul, Christian F., Jr.

Crude-Oil Burner

Description: Patent for an efficient burner of crude or fuel oil that can be used with less dangerous fuels while maintaining the same high level of heat and vaporization necessary for use in domestic environments.
Date: June 14, 1921
Creator: Holmes, Watson W.

Cultivator-Sweep.

Description: Patent for a cultivator sweep that cuts weeds close to the crops.
Date: February 14, 1911
Creator: Lundghren, Charles & Anderson, Gus E.

Electric Time Switch

Description: Patent for electric time switch. Illustration included.
Date: February 14, 1905
Creator: Gerhard, William H.

Electrical Battery

Description: Patent for an electrical battery. Illustration included.
Date: June 14, 1904
Creator: Haschke, Juluis E. & Haschke, Feodor G.

Exhibitor

Description: Patent for device which would allow motorists to display road maps in their vehicle while driving. Would also include a light so maps could be visible at night.
Date: August 14, 1917
Creator: Atkinson, Jackson B.

Gun.

Description: Patent for an artillery gun which can be moved in any direction due to improvements in its base.
Date: October 14, 1919
Creator: Collier, William Reid

Hat-Pin

Description: Patent for a hat pin. This hat pin utilizes a new form of guard to house the pin to prevent injury and keep it from accidentally slipping out. It is also designed to be ornamental, compact, and can be applied to many different types of hat.
Date: May 14, 1918
Creator: Collier, William Reid

Ice Conveying Apparatus

Description: Patent for an ice conveying apparatus. Illustration included.
Date: June 14, 1904
Creator: Westergaard, Helge & Smith, Noyes D.

Improvement in Bungs.

Description: Patent for improvement in bungs for beer and other barrels.
Date: April 14, 1868
Creator: Stremme, Conrad C.

Mail-Bag Fastener.

Description: Patent for a mail-bag fastener that consists of a mail bag with a flap, slots, a double upper portion next to the flap, a channel cut into the portion, guides with slots across the channel, a leather strap that slides into the channel, staples on the inside of the flap, and a tag holder attached to the back of the strap.
Date: November 14, 1893
Creator: Roosevelt, James Albert

Metallic Railroad-Tie.

Description: Patent for an improvement of metallic railroad ties in which clamp-plates are not needed to hold the longitudinal tension-rods, “instead the heads of the rods bear against the solid outer ends of the rail-seats which are constructed integral with the body of the tie.” (Lines 14-17) Illustration is included.
Date: April 14, 1891
Creator: Saunders, Ellison

Needle.

Description: Patent for improvements in needles: "is to provide a ready means for cutting to the twine, thread, or cord carried by a needle" (lines 15-17).
Date: September 14, 1897
Creator: Posey, Robert H.

Pocket Hanger for Hats and Coats.

Description: Patent for a new and improved portable hat- and coat-hanger. This design utilizes two metal hooks, each of which fold into a metal handle, so that one hangs from a surface while the other hangs an article of clothing. One hook should be sharp enough to engage with a wall, while the other need not be sharp to hang an article from the back of a chair or pew.
Date: February 14, 1882
Creator: McDonald, Thomas

Slide Rule

Description: Patent for a slide rule. Illustration included.
Date: January 14, 1913
Creator: Hamby, Robert M.

Wind-Turbine.

Description: Patent for improvements to wind motors for turbines "and has for its object to provide a wind turbine of novel structure or arrangement and including means for varying the admission of air currents to the wheel thereof" (lines 10-13).
Date: April 14, 1908
Creator: Gustafson, Claes Viktor
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