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Apparatus for Calcining Plaster

Description: This patent is for an apparatus for calcining plaster of any kind. Or an apparatus that keeps clean the inner surface of a revoluble drum for ventilating the drum during the calcining operation. The apparatus also provides for easily removing the material after the completion of the cooking operation (Lawrence, 1902).
Date: unknown
Creator: Lawwrence, Ambrose
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Diving Gear for Motor Vehicles

Description: Patent for new type of driving gear for motor-vehicles that allows power to be carried independent of the direct drive to improve the life of the engine and fuel efficiency.
Date: unknown
Creator: Byars, Edgar
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Box and Closure Locking Device

Description: Patent for a box and closure locking device "that when used in connection with a box or receptacle forms a lock box, in which when the cover or closure is arranged upon the box." (lines 17-20) includes instructions and illustration.
Date: unknown
Creator: Rider, Clarke, W
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lock Nut Construction

Description: Patent for “a lock-nut construction that can be applied and easily taken apart without injury and provide a device for locking a rotary cutting disk in place and prevent accidental removal from its bearing.” (lines 14-19) including instructions and illustrations.
Date: unknown
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sight for Firearms

Description: Patent for sight for firearm that provides a transparent lens with sight marks and a scale to determine what sight mark to use when firing at an object.
Date: unknown
Creator: Critchett, James Clyde
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hay-Press

Description: Patent for a hay press "that simultaneously compressing material to form two bales within a single hopper." (lines 12-14)
Date: unknown
Creator: Fields, Moses M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvements in Tractors

Description: Patent for a tractor that of a light and durable but simple construction for the purpose of advancing the implements over the ground.
Date: unknown
Creator: Lightfoot, Thomas W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Buttoning and Gripping Device for Artificial Arms

Description: Patent for a gripping device that attaches to an artificial arm. The two main elements consist of a support structure with a jaw, and another element with a movable jaw. A buttoning device is mounted to the structure and functions independently of the two jaws.
Date: unknown
Creator: Corley, Quentin D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Manufacture of Bricks

Description: Patent for an improvement in the manufacturing of bricks, using the waste products of a coal burning furnace and other cheap ingredients.
Date: unknown
Creator: North, Clarance Lupfer
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wire Stretcher

Description: Patent for a device that improves "wire-stretchers, but also adapted to be used for other purposes" (lines 15-19) including instructions and illustrations.
Date: unknown
Creator: Calhoun, Albert C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wrench.

Description: Patent for the wrench. "The object of the invention is to provide a wrench which will be readily adjustable so as to fit nut of any size and one which will be held securely on the nut securely on the nut when engaged thereon" (lines 10-14).
Date: unknown
Creator: Weatherly, George B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Twine Holder.

Description: Patent for a twine-holder designed to keep the proper tension on the twine and allow for the free end to be reached easily by users.
Date: 1919
Creator: Nicks, John H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tunneling-Machine

Description: Patent for a horizontal tunneling machine comprised of two different drill mechanisms - an inner and an outer drill stem - that could be operated separately and at different speeds, and adjusted while the drills were running. The drills make use of the tricone drill bit invented by Hughes in 1909, and could drill through hard rock more effectively than previous mechanisms.
Date: unknown
Creator: Hughes, Howard Robard
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Load-Indicator

Description: Patent for a load indicator that can be attached to the sustaining cable of a drill, allowing its operators to more carefully control the amount of weight applied to the drill bit while it is in use - making it less likely to be crushed during the process of drilling.
Date: unknown
Creator: Fletcher, Harold W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Screen.

Description: Patent for improving well screens used in tubes for water or oil wells, with illustration. This describes how to secure its place within the tube.
Date: unknown
Creator: Layne, Lloyd F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Weather-Strip

Description: Patent for weather-strip. The device is attached to windows/ doors and prevents moisture from entering the structure. The device creates a seal between the outside and inside environments which prevents other forms of moisture getting under the doors and windows.
Date: unknown
Creator: Cross, Ralph Waldo
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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