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Car Door.

Description: Patent for a new and improved door for railroad cars. This design consists in "[t]he combination, with the car having the door-opening with its upper and lower edges parallel and inclined upward and inward, and the bolt-keeper secured to the sill of the car, of the door having correspondingly-inclined upper and lower edges, the guide-staple and fulcrum-bracket secured to the door at proper points, the operating-lever pivoted to said bracket, the link-rods and bolt, the [other] link-rod pivoted at its lower end to the operating-lever" (lines 4-14).
Date: May 28, 1889
Creator: Charlton, James
Partner: UNT Libraries Government Documents Department

Machine for Welding Tubes.

Description: Patent for a new and improved machine for welding tubes. This design "has relation to machines for welding flues; and it consists in the improved construction and combination of operative parts" (lines 22-25).
Date: August 29, 1882
Creator: Charlton, James
Partner: UNT Libraries Government Documents Department

Fence or Gate.

Description: Patent for a new and improved fence or gate. This design consists in "[a] fence or gate composed entirely of pipes interchangeably connected together by couplings, and consisting of the long tubular pickets and the intermediate short tubular pickets, each long tubular picket being formed by two short tubular pickets connected by an intermediate coupling in the form of a Greek cross, a similar coupling at the top of each long and short tubular picket, and the T-shaped couplings at their bottoms, combined with a series of horizontal tubes" (lines 54-64).
Date: January 20, 1891
Creator: Friday, Henry
Partner: UNT Libraries Government Documents Department

Door Hanger.

Description: Patent for a new and improved hanger for doors and gates. This design consists in "the brackets secured to a door or gate way at intervals apart and having the horizontal supporting arms, the track made of angle-iron and having the horizontal treadway secured to the arms of the brackets, and the upwardly-extending flange at the outer edge of the treadway, and the hangers secured to the door or gate and having their upper portions bent to form an inverted U-shaped yoke or frame, and rollers journaled between the sides of the frame" (lines 80-91).
Date: May 17, 1887
Creator: Charlton, James
Partner: UNT Libraries Government Documents Department

Funnel Attachment.

Description: Patent for a new and improved funnel attachment for pouring. This design consists in "[t]he combination of the supporting frame, a shaft journaled in the frame, a crank for rotating the shaft and carried by the frame, and a screw-conveyer carried by the shaft and having the smaller blades and the larger blade arranged above the [smaller] blades, and bearing against the funnel above the conducting tube thereof when the device is adjusted in the funnel" (lines 52-60).
Date: July 27, 1886
Creator: Charlton, James & Lynch, Hubbard Calhoon
Partner: UNT Libraries Government Documents Department

Hay-Press.

Description: Patent for improvements in hay-presses by using the combination of a ram having a connecting rod, a rack engaged with a rotatable cog-wheel, a bed-plate, a weighted lever, a buffer and other minor parts to create the pressing operation. Illustration is included.
Date: May 19, 1891
Creator: Grant, Richard A.
Partner: UNT Libraries Government Documents Department

Hydraulic Drill

Description: Patent for a hydraulic drill that allows drill bits to be easily inserted and removed and locks them in place when inside the drill.
Date: May 21, 1907
Creator: Charlton, James
Partner: UNT Libraries Government Documents Department

Mechanism for Converting Motion

Description: Patent for mechanism for converting motion. "The present invention relates to mechanism for converting reciprocatory into rotary motion; and the objects are to provide a practical apparatus of this character in which rotary motion may be imparted to a driven member without occasioning any dead-centers and to provide simple means reversing the direction of motion of the driven member" (line 10-19). Illustrations included.
Date: October 6, 1903
Creator: Griffin, George L.; Griffin, Robert Alonzo; Griffin, Chelsea Beach & Griffin, Herbert Elvia
Partner: UNT Libraries Government Documents Department