UNT Libraries Government Documents Department - 71 Matching Results

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Electrical Alarm for Window Screens.

Description: Patent for a new and improved window alarm. This design consists in "the window-frame, having the contact-springs connected in open circuit with an electrical alarm, with the screen or frame in the window-frame, having the double contact-points, the contact-springs, and the wires, the contact-point bearing against the spring . . . the point, spring, double contact-points, and the contact-springs being connected together in open-circuit, whereby an alarm will be sounded either by raising the scr… more
Date: August 11, 1885
Creator: Garrett, Henry
Item Type: Refine your search to only Patent

Straining Beam.

Description: Patent for a new and improved straining beam. This design "is especially adapted to be used in that class of structures, especially bridges and columns, in which it is necessary to combine the maximum of strength with the minimum of weight; and it consists in the improved construction and combination of parts of a beam" (lines 22-27).
Date: September 11, 1883
Creator: Davis, Benjamin F.
Item Type: Refine your search to only Patent

Ruler.

Description: Patent for a new and improved ruler. This design consists in "the combination of the flexible top piece or strip having parallel longitudinal ruling-edges and the separate tapering feet secured to the underside of said strip at suitable distances apart throughout the length of the latter, and with the ruling-edges of the top strip overlapping them" (lines 43-50).
Date: February 11, 1890
Creator: Matthews, Oscar S.
Item Type: Refine your search to only Patent

Railroad-Crossing.

Description: Patent for a railroad crossing that "consists in certain devices organized in a manner to secure automatic alignment of a series of movable rail-sections with the main rails of a track on which a train is traveling in the direction of the crossing, the approach of the train setting in motion the devices by which the rail-sections are controlled, and thus dispensing with an attendant at the crossing to set the contrivance for the safe passage of the train through the crossing" (lines 12-22).
Date: October 11, 1892
Creator: Knight, Mosses G.
Item Type: Refine your search to only Patent

Doubletree.

Description: Patent for a simple, inexpensive, and durable double tree that utilizes the entire force of the strain and divides it equally between the animals.
Date: December 11, 1894
Creator: Beaver, Francis Marion
Item Type: Refine your search to only Patent

Cotton Conveying and Cleaning Apparatus.

Description: Patent for a new and improved conveyer and cleaner of cotton. This design consists, "with the cotton pneumatic tube and the fan for producing an air-current therein, of the branch-tubes connecting the segments of the tube first named, the cotton-arresting screens, the enlarged mouth upon the tube-segment opposite the fan, the rotating cylinder mounted between said branches, the wings thereon completely filling, with the cylinder, the upper portion of the mouth and sweeping over the faces of the… more
Date: March 11, 1890
Creator: Elam, William E.
Item Type: Refine your search to only Patent

PRINTER'S QUOIN

Description: Patent for Printer's Quoin. "The invention relates to printers' lock-ups; and its object is to provide a new and improved printer's quoin..." (lines 8-10) and illustrations.
Date: August 11, 1903
Creator: Decker, William Scott
Item Type: Refine your search to only Patent

Vapor-Burner.

Description: Patent for a vapor burner that improves upon existing vapor burners by using steam to heat oil and mix with vapor. This invention consists of novel features within the vapor burner's arrangement and construction.
Date: August 11, 1903
Creator: Pritchard, Edward Walter
Item Type: Refine your search to only Patent

Telephone Signal

Description: Patent for a telephone signal. This invention relates to electrically operated signals whereby a visual signal for indicating when a telephone rings. Illustration included.
Date: December 11, 1906
Creator: Jordan, Thomas P. & Carden, George A.
Item Type: Refine your search to only Patent
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