UNT Libraries Government Documents Department - 55 Matching Results

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Book Adjuster.

Description: Patent for a new and improved book-adjuster. This design consists in "[t]he combination, with the holder having the horizontal longitudinal recess and the vertical screw-threaded aperture, of the base-piece, the adjusting-screw swiveled at its lower end in the said base-piece, and the spring-catch" (lines 3-8).
Date: February 8, 1887
Creator: Adair, Irvine James
Item Type: Refine your search to only Patent

Trolley Wire Finder

Description: Patent for a trolley wire finder. This invention to improvements in trolley-wire finders, and more particularly to its attachment to trolley-poles and trolley-harps as a means of assistance in guiding the trolley wheel has been shifted from or slipped off said trolley-wire and is of advantage as a means of saving time." (8-16). Illustration included.
Date: March 8, 1904
Creator: Barnhusrt, William
Item Type: Refine your search to only Patent

Drainage Apparatus.

Description: Patent for a drainage apparatus by using two siphon-pipes, a back-pressure valve and an automatic starting device to drain the water from one place to another when the water is at a predetermined level. Illustration is included.
Date: January 8, 1901
Creator: Carroll, Samuel C.
Item Type: Refine your search to only Patent

Plow

Description: Patent for a plow that is convertible into different types (turning plow). The plow is distinct for its moldboards, carrying handle and runner.
Date: December 8, 1914
Creator: Cowan, Robert J.
Item Type: Refine your search to only Patent

Electrical Fare-Box.

Description: Patent for device "to improve the illumination and increase the efficiency and subserviency of street-care fare-boxes. To these ends the source of light is located in the interior of the box, instead of being placed in a separate chamber at the outside of the box, as is now done, and electrical agency is utilized to produce the light and also to notify the driver that a passenger requires change and when a fair has been deposited in the box" (lines 8-17).
Date: February 8, 1887
Creator: Crowdus, Walter A.
Item Type: Refine your search to only Patent

Spike.

Description: Patent for improvements in spikes, in which when the spike is driven into a tie, it will not turn (line 11-12). Illustration is included.
Date: July 8, 1913
Creator: Daniels, Winfield S.
Item Type: Refine your search to only Patent

Shoe-Fastening.

Description: Patent for improvements in shoe-fastenings by using a “pivoted clasp-lever which has a tail-piece acted upon by a leaf-spring for holding the lever in its closed or open position.” (Lines 11-13) Illustration is included.
Date: September 8, 1891
Creator: Dessoir, Julius
Item Type: Refine your search to only Patent

Draft Equalizers

Description: Patent for a draft equalizer that permits either three horses to travel at one side of the beam and two at the other, or three horses at one side of the beam and one at the other. Includes instructions and illustrations.
Date: September 8, 1914
Creator: Dudley, Thomas J.
Item Type: Refine your search to only Patent

Whiffletree.

Description: Patent for a whiffletree for doubletrees and singletrees that is made of metal in its entirety. It consists of metal bars with end recesses, a middle brace, end caps with heads, hooks, a cross-bar or pivot, and rivets.
Date: November 8, 1892
Creator: Flatau, Louis S.
Item Type: Refine your search to only Patent

Fire-Kindling Cartridge.

Description: Patent for an improved fire-kindling cartridge which "consists, essentially, in a cartridge made in two sections, each composed of coiled wire, with their outer end tapering or contracted, forming a conical point, a sleeve of coiled wire with which the inner ends of said sections engage, and a filling of asbestos or other material." (Lines 25-31) Includes instructions and illustrations.
Date: October 8, 1895
Creator: Flatau, Louis Spencer
Item Type: Refine your search to only Patent

Type-Writing Machine

Description: Patent for a type writing machine with particular focus on the "ribbon mechanism for typewriting machines and a main object is to provide devices for automatically controlling the ribbon reverser" (lines 8-11).
Date: July 8, 1919
Creator: Fort, Tandy I.
Item Type: Refine your search to only Patent

Catamenial Sack

Description: Patent for a catamenial sack. This invention is a "catamenial sacks or shields and the object is to provided such a device which will be cleanly and sanitary in effect, which is pliable and easily and comfortably conformable to the form of the wearer" (lines 8-13). Illustration included.
Date: June 8, 1909
Creator: Frommann, Franklin A.
Item Type: Refine your search to only Patent

Circuit Breaker For Storage Batteries

Description: Patent for a circuit breaker for storage batteries. This invention is an improved upon device, specifically as it applies to breaking the main circuit of the battery when the voltage reaches a minimum limit. Illustration included.
Date: December 8, 1903
Creator: Garrett, Henry
Item Type: Refine your search to only Patent

Washing-Machine

Description: Patent for an alteration to cylindrical reciprocating washing machines that first provides "a washing-machine of the type above described in which the drum or body portion of the machine is supported at a single point at its bottom and gives a partial revolving motion thereon; second, to provide said machine wit-h a suspended horizontally-arranged and vertically-reciprocated stirring device or twirl, and, third, to provide mechanism for automatically raising and lowering the stirring device and… more
Date: November 8, 1892
Creator: Hacke, Karl Wilh.
Item Type: Refine your search to only Patent
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