UNT Libraries Government Documents Department - 920 Matching Results

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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 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 Ventilators.

Description: Patent for improvement in ventilators which combines a bell-mouthed vane with white induction and black eduction pipes for the purpose of introducing fresh air and eliminating foul air from an enclosed area.
Date: December 21, 1875
Creator: Moyer, Alexander L.

Improvement in Rerigerator-Cars.

Description: Patent for "improvements in refrigerator-cars for preserving fresh meats, vegetables, and other perishable articles while transporting them over great distance; and it consists of an ice-receptacle at the top of the car, provided with flat top and carved or inclined bottom." (Lines 13-19) Includes instructions and illustrations.
Date: January 18, 1876
Creator: Zimmerman, Arnold W.

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 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.

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.

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 Quilting-Frames

Description: Patent for an improved quilting frame that is designed around a folding trestle-frame and two parallel rollers on which a quilt can be rolled, leaving the material between the rollers to be quilted/worked on. Illustration includes a perspective and detail view of the frame.
Date: January 16, 1877
Creator: Davis, Henry T.

Improvement in Rotary Churns.

Description: Patent for an improvement of the churn that is, "within a square wooden box, of a rotating dasher or paddle, and the mechanism for driving the same, that various parts being constructed, arranged, and operated" (lines 20-24). Illustrations included.
Date: February 20, 1877
Creator: Dean, Charles C.

Improvement in Leather-Cutting Gages

Description: Patent for improvement in leather cutting-gages in order to negate the need for the set-screw at the end of the gage handle that is needed to hold the rule. The document contains instructions and illustrations of the device.
Date: April 17, 1877
Creator: Lindsay, George F.

Improvement in Masks for Horses and Cattle.

Description: Patent for a slitted leather mask for animals to be used for horses, cattle, etc. to deter the jumping of fences. Patent for "mask, covering the eyes of the animal, leaves him with a sufficiently free vision, and being thoroughly ventilated, will not injure his eyes".
Date: July 10, 1877
Creator: Trueblood, Albert H