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Adjustable Device for Dressing Down Bearings

Description: Patent for a tool that dresses down bearings. Railroad engine journals and their corresponding bearings show wear over time. When replacing bearings into such a journal, without adaptation of the bearing there will be an improper fit, resulting in "hot journals" or "hot boxes". This tool adapts a bearing to a proper fit for the journal into which it will be installed.
Date: December 12, 1922
Creator: Mitchell, William A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Ant-Trap

Description: Patent for an ant trap "to provide a simple, inexpensive, and efficient one of great strength and durability adapted to be place over an ant-hill and capable of capturing the ant in the hill as they leave the same and also of catching the outside ants as they attempt to enter the hill. (line 11-17)
Date: May 26, 1903
Creator: Finley, William Frederick
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Partner: UNT Libraries Government Documents Department

Apparatus for Controlling Trolley Poles

Description: Patent for an apparatus for controlling trolley poles. "This invention relates to an apparatus for controlling trolley poles employed for effecting electrical connection between a trolley wire and a motor on a car, and has for its object to provide improved means for automatically throwing the trolley into position to be placed in engagement with the trolley wire" (line 9-15). Illustrations included.
Date: November 10, 1903
Creator: Bogue, Judson L. & Jennings, David M.
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Partner: UNT Libraries Government Documents Department

Arc-Lamp Attachment

Description: Patent for improving arc lamp attachments. The attachment allows an arc lamp to be able to use an incandescent lamp in place of the electrodes in an arc lamp. The attachment increases the efficiency and durability of the arc lamp.
Date: April 2, 1918
Creator: Pratt, James R.
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Partner: UNT Libraries Government Documents Department

Automatic Car-Switching System.

Description: Patent for "a system of switching where the cars of a train are pushed up an incline and placed successively on an elevated annular revolving platform, by which they are automatically distributed to their respective receiving-tracks" (lines 9-14).
Date: March 24, 1896
Creator: Lelardoux, Pierre
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Partner: UNT Libraries Government Documents Department

Automobile-Headlight

Description: Patent for an automobile headlight to be attached to the front of the vehicle, that automatically turns to the side whenever the vehicle changes its course so that the pathway directly ahead is lighted for increased safety in the automobile's course.
Date: February 8, 1916
Creator: Old, William B.
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Partner: UNT Libraries Government Documents Department

Ballast-Scraper.

Description: Patent for new and useful improvements in ballast scrapers, including instructions and illustrations.
Date: August 22, 1899
Creator: McElvaney, Charles T.
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Partner: UNT Libraries Government Documents Department

Bicycle Attachment.

Description: Patent for "a new and improved bicycle attachment arranged to serve as a foot-rest for the feet of the rider while coasting and adapted to be lowered to support the bicycle in a vertical position when not in use and to securely lock the wheel and support together to prevent the machine from being stolen" (lines 7-14), including illustrations.
Date: May 11, 1897
Creator: Zintgraff, August
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Partner: UNT Libraries Government Documents Department

Binder for Paper Tablets.

Description: Patent for improvements for tablets for blank paper, leterheads, etc. that holds content securely, including illustrations.
Date: February 25, 1879
Creator: Murray, Bredett C.
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Partner: UNT Libraries Government Documents Department

Board Roofing.

Description: Patent for a new design of roofing board. The wooden boards are designed to "contract and expand with changes of temperature" (para. 3) and to allow rain to run off without seeping into the joints of the boards.
Date: December 19, 1876
Creator: Zimmerman, Arnold W.
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Partner: UNT Libraries Government Documents Department

Boiler Stay Bolt

Description: Patent for a boiler stay bolt. This design is made of flexible stay-bolts for boiler allowing for movement bracing sheets. Illustration included.
Date: June 16, 1908
Creator: Borneman, Lewis
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Partner: UNT Libraries Government Documents Department

Broom or Brush

Description: Patent for metal brooms or brushes that are "strong and durable, relatively light in weight, and can be inexpensively manufactured" (line 13-15). It is intended for "sweeping snow, mud, slush, and the like" (line 16-17). The patent can also be applied for smaller version of metal brooms or brushes for other purposes.
Date: March 16, 1915
Creator: Airhart, Noah S. & Gold, Egbert H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Button Attaching Machine.

Description: Patent for a new and improved button-attaching machine. This design consists in "the combination, with the plunger, of . . . the die having a central projection to enter the concavity of a button and parallel oblique curved recesses in said projection . . . [and] a peripheral flange" (lines 84-99).
Date: January 24, 1888
Creator: Tone, Harrison
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car-Brake.

Description: Patent for improvements in car brakes, "wherein the ordinary brake-beams are dispensed with and wherein the several brake-shoe-carrying levers will be self-adjusting." (lines 8 - 11) Includes instructions and illustrations.
Date: December 8, 1891
Creator: Braun, Henry F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car-Coupling.

Description: Patent for a simple, practical, and reliable car-coupling with a side latch. It is "adapted for automatic connection in pairs, when two cars having the improvements are brought together on the same track, which will be capable of a ready release from the side of either coupled car, and also that will be adapted by its peculiar formation to receive support from one part of the improvements, when a coupled drawhead is partly detached from its connections to the car, and which if not so sustained … more
Date: January 15, 1895
Creator: Curry, Charles D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car Replacer

Description: Patent for a car replacer. This invention is designed for the replacement of derailed locomotives, cars, and stock pens to the rails. Illustration included.
Date: June 18, 1907
Creator: Bowman, James M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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