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Well-Drilling Machinery

Description: Patent for a machine used to drill water, oil, and gas wells. Illustrations included.
Date: July 7, 1908
Creator: Decker, Harry R.
Partner: UNT Libraries Government Documents Department

Try-Square.

Description: Patent for try squares which provides certain improvement in try squares. "The aim of the present improvement is to provide means for continuing a scribe or mark around the edge of a board or piece of timber to correspond to a main indication accurately on both sides without changing the position of the square, and, further, to have the main blade of the square constructed for gaging or ruling by the provision therein of apertures to receive the point of a pencil or other marking device" (lines… more
Date: October 7, 1902
Creator: Pugh, Samuel Ress
Partner: UNT Libraries Government Documents Department

Trick-Pipe.

Description: Patent for a trick pipe, which has a lid over the pipe bowl that ordinarily would blow off when the pipe is blown into, but when put in the trick position will seal itself on no matter how hard the person blows.
Date: April 7, 1908
Creator: Judson, Fred Irving
Partner: UNT Libraries Government Documents Department

Trick Amusement Device

Description: Patent for a puzzle toy consisting of a lid and blower. Illustrations included.
Date: July 7, 1908
Creator: Judson, Fred I.
Partner: UNT Libraries Government Documents Department

Notching Means for Wire-Winding Machines.

Description: Patent for notching means for wire winding machines, which evenly notches well screens with a chisel.
Date: December 7, 1909
Creator: Wergin, William Lewis
Partner: UNT Libraries Government Documents Department

Rail Joint

Description: Patent for a rail joint. Illustration included.
Date: February 7, 1905
Creator: Riggs, James M.
Partner: UNT Libraries Government Documents Department

Washing Machine

Description: Patent for a washing machine that uses a rotary cylinder. Illustration included.
Date: November 7, 1905
Creator: Green, James J.
Partner: UNT Libraries Government Documents Department

Switch-Operating Mechanism

Description: Patent for a railroad switch operating mechanism that is operated from the train which can can close a switch accidentally left open.
Date: July 7, 1908
Creator: Hyman, Henry F. & Hay, G. H.
Partner: UNT Libraries Government Documents Department

Band-Tightener.

Description: Patent for a lever used to tighten the bands on bales of cotton or other materials, including illustrations.
Date: July 7, 1903
Creator: Mullane, Dennis
Partner: UNT Libraries Government Documents Department

Combined Tie-Plate and Rail-Anticreeper.

Description: Patent for a combined railroad tie and rail anti-creeping device, which prevents the rails from spreading.
Date: December 7, 1909
Creator: Clarke, Marcus S.
Partner: UNT Libraries Government Documents Department
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