UNT Libraries Government Documents Department - 25 Matching Results

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Refrigerator.

Description: Patent for a refrigerator, which is cooled by ice water that has melted out of the ice chamber going around all the refrigeration areas.
Date: January 17, 1911
Creator: Baker, Jesse J.
Item Type: Refine your search to only Patent

Cotton-Gin.

Description: Patent for cotton gin, which includes a huller roller, seed bar, and seed grate to separate and remove seeds from the cotton. Ginning points/pins are used instead of saws. Due to the positioning of the ginning points/pins, the surface of the ginning cylinder in its entirety is available for ginning and there are fewer mechanical friction points.
Date: October 17, 1911
Creator: Hollingsworth, Joseph C.
Item Type: Refine your search to only Patent

Airship

Description: Patent for a dirigible airship for aerial navigation, "to provide the balloon or gas bag with aeroplanes which serve to steady the balloon during the flight of the ship, and to increase the lifting power of the balloon when the ship is under motion, the arrangement being such as to enable said aeroplanes to be converted into a parachute, should the balloon or gas bag become deflated" (lines 20-28).
Date: January 17, 1911
Creator: Keller, James M.
Item Type: Refine your search to only Patent

Square.

Description: Patent for a a carpenters square, which has tables printed on it for calculating the length and angle that rafter boards should be cut to.
Date: January 17, 1911
Creator: McCormick, Terrill William
Item Type: Refine your search to only Patent

Harrow Attachment.

Description: Patent for a harrow attachment "that is efficient and durable, cheap to manufacture, and can be readily placed on or removed from cultivators" (lines 19-22).
Date: August 17, 1911
Creator: Smith, Alexander
Item Type: Refine your search to only Patent
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