UNT Libraries Government Documents Department - 50 Matching Results

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Board Roofing.

Description: Patent for a new design of roofing board. The wooden boards are designed to "contract and expand with changes of temperature" (para. 3) and to allow rain to run off without seeping into the joints of the boards.
Date: December 19, 1876
Creator: Zimmerman, Arnold W.

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.

Improvement in Bee-Hives

Description: Patent for an improved design for bee-hives with the sloped V shaped interior designed to aid in warmth for the hive and reducing debris entering the comb. Illustrations included show several cross-sections of the hive construction.
Date: December 12, 1876
Creator: Snider, George W.

Improvement in Brick-Presses.

Description: Patent for a "new and useful improvement in brick-presses by which bricks may be quickly and cheaply pressed by hand power from clay taken direct from bank or mixer" ( Lines 1-3 )including instructions and illustration.
Date: May 14, 1878
Creator: Moore, Andrew A.

Improvement in Churns.

Description: Patent for the improved design of churns "in which the dasher-shaft is vertical and receives rotation by gearing at the top of the churn" (2nd para.), including illustrations.
Date: January 25, 1876
Creator: Davis, Henry T.

Improvement in Cotton-Presses.

Description: Patent for "a press by means of which the cotton can be backed and pressed into the bale in small quantities at a time, by alternating pressing a quantity, then lifting the follower, and inserting more, and pressing again, and so on until the bale is formed." (Lines 19-25) Includes instructions and illustrations.
Date: November 16, 1875
Creator: Frost, Willis Lee

Improvement in Double-Bitted Drills.

Description: Patent for "an easy mode of straightening wells while drilling them through rock or earth, and also for enlarging the same into a cistern when it is desired to keep on hand a large supply of water." (Lines 8-13) Includes instructions and illustrations.
Date: May 30, 1876
Creator: Yarbrough, William H.