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Rotary Engine.

Description: Patent for a new and improved rotary engine. This design consists "[i]n a rotary engine, the combination of the wheel having two circumferential channels and radial recesses, with the notched pistons, fitted in the radial recesses of the wheel, and the adjustable cam connected with the side casings and fitted into the notches of the pistons" (lines 90-96).
Date: August 17, 1880
Creator: Cross, David L.
Partner: UNT Libraries Government Documents Department

Power Transmitting Attachment for Windmills.

Description: Patent for a power-transmitting attachment for windmills "whereby the power of the wind-mill used for operating a pump may also be used for operating other machinery" (lines 12-14), including illustrations.
Date: August 17, 1918
Creator: Records, Paul A.
Partner: UNT Libraries Government Documents Department

Rail-Joint.

Description: Patent for improving railway rail joints "without the use of fish plates or clamping bolts" (lines 12-13) and for quick and secure assembly "by any person without previous skill or knowledge" (lines 24-25).
Date: August 17, 1920
Creator: Fenske, Paul J.
Partner: UNT Libraries Government Documents Department

Flue-Cleaner.

Description: Patent for a portable flue cleaner for boilers. Through a nozzle on the cleaner, the flue cleaner uses the steam from the boiler to remove dirt, dust and soot. The dirt is forced out of the boiler when the steam escapes.
Date: August 17, 1915
Creator: Leonard, Carl
Partner: UNT Libraries Government Documents Department

Fire-Screen.

Description: Patent for a portable, ornamental fire screen. Includes instructions and illustrations.
Date: August 17, 1897
Creator: Havecotte, John H.
Partner: UNT Libraries Government Documents Department

Flexible Metallic Hose

Description: Patent for a flexible metallic hose. Illustration included.
Date: August 17, 1909
Creator: Schulz, Wilhelm
Partner: UNT Libraries Government Documents Department

Bedstead Lock or Joint

Description: Patent for a bedstead lock or joint. Illustration included.
Date: August 17, 1901
Creator: Martin, Mack D.
Partner: UNT Libraries Government Documents Department

Bed or Douche Pan.

Description: Patent for improvements in bed or douche pans, in which it will not spill easily and is easy to clean. Illustration is included.
Date: August 17, 1909
Creator: Williams, Bettie C. & Scott, Arthur C.
Partner: UNT Libraries Government Documents Department

Automatic Railroad-Switch

Description: Patent for an automatic railroad switch which throws the switch automatically back to the main line after a train has entered a siding.
Date: August 17, 1909
Creator: Toullerton, George Edward
Partner: UNT Libraries Government Documents Department

Bed.

Description: Patent for a bed, specifically the joints of a bedframe. The side rails for a bedframe are joined by tapered connectors.
Date: August 17, 1920
Creator: Hellweg, Rudolph F.
Partner: UNT Libraries Government Documents Department

Boll Weevil Exterminator

Description: Patent for a boll weevil exterminator. Illustration included.
Date: August 17, 1909
Creator: Evans, James W.
Partner: UNT Libraries Government Documents Department

Sugared Nut Candy

Description: Patent for sugared nut candy. No illustration.
Date: August 17, 1909
Creator: McDonald, Joseph H. & Hopson, Charley A.
Partner: UNT Libraries Government Documents Department

Cuff-Link.

Description: Patent for new and useful improvements in cuff links that do not separate from sleeves and help with any decoration.
Date: August 17, 1920
Creator: Hall, James L.
Partner: UNT Libraries Government Documents Department

Rail-Joint

Description: Patent for an improved rail joint that doesn't need bolts.
Date: August 17, 1920
Creator: Ryan, George R. & Ryan, William M.
Partner: UNT Libraries Government Documents Department

Adjustable Split Lock-Nut or Union.

Description: Patent for an affordable and efficient coupling device for use "on valve rods of internal combustion engines, especially those used in automobiles and aeroplanes or on those motors or engines employing overhead valves and whereby the union or coupling may be readily and securely locked on a valve rod with sufficient resistance to withstand the strain of direct pressure" (lines 14-21).
Date: August 17, 1920
Creator: Dickinson, Harry E.
Partner: UNT Libraries Government Documents Department
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