UNT Libraries Government Documents Department - 5 Matching Results

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Baling-Press

Description: Patent for improvements in baling presses "in which the necessary motion may be imparted to the plunger in a rapid and effective manner, and which shall be productive of considerable saving of labor and power" (lines 15-19)
Date: April 29, 1890
Creator: Anderson, Zachariah J.
Item Type: Refine your search to only Patent

Barrel-Washer.

Description: Patent for a machine that cleans barrels. It has "barrel-supporting rollers to rotate the barrel in contact with brushes" (lines 13-15), which are more durable than rollers made from rubber tires. The rollers also each have an inner portion, a detachable annular exterior, and an elastic ring around the outside. Brushes are attached on opposite sides of the barrel, held up by a frame.
Date: September 29, 1896
Creator: Herold, Charles
Item Type: Refine your search to only Patent

Rotary Engine.

Description: Patent for improvements in rotary engines by proving “a reversible rotary steam-engine in which friction shall be reduced to as small an extent as consistent with suitable packing of the joints, the pressure on the piston-wings be practically balanced, and compensation made for wear” (lines 11-16). Illustration is included.
Date: September 29, 1891
Creator: Bretherton, Montague James
Item Type: Refine your search to only Patent

Document File-Case.

Description: Patent for "an envelop for holding papers of various kinds and which is convenient and durable and can be manufactured at small cost" (lines 9-11). the side flaps are adjustable and are connected using elastic straps so they don't accidentally disconnect under tension.
Date: September 29, 1896
Creator: Ward, George C.
Item Type: Refine your search to only Patent
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