UNT Libraries Government Documents Department - 6 Matching Results

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Improvement in Spectacle-Frames.

Description: Patent for "spectacle-frames in which the bows are turned into a coil near the points where they are connected to the lens-hoops for the purpose of forming spring-joints, instead of the ordinary pivot-joints." (Lines 6-10) Includes instructions and illustrations.
Date: November 30, 1875
Creator: Stewart, John W.
Item Type: Refine your search to only Patent

Improvement in Air-Cooling Apparatus.

Description: Patent for "the construction and arrangement of a refrigerator for the purpose of cooling and maintaining a low and dry temperature, for preserving fresh meats and vegetables, and for cooling rooms for any purpose." (Lines 10-15) Includes instructions and illustrations.
Date: March 30, 1875
Creator: Hyatt, Frank A.
Item Type: Refine your search to only Patent

Improvement in Bale-Ties.

Description: Patent for improvement in bale-ties. "This invention relates to that class of ties or hoops for cotton-bales, in which the band of hoop iron is provided with rigid hooks, studs, or buttons, and matching perforations as means for adjustably uniting the ends."
Date: November 30, 1875
Creator: Powell, Amos N.
Item Type: Refine your search to only Patent

Improvement in Cotton-Presses.

Description: Patent for improvement in cotton-presses, which increases convenience by using detachable parts to facilitate insertion of material and a windlass with a system of cords and levers to increase compression of cotton.
Date: November 30, 1875
Creator: Wallace, Wesley W.
Item Type: Refine your search to only Patent
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