UNT Libraries Government Documents Department - 4 Matching Results

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Carpenter's Square.

Description: Patent for a carpenter's square that uses an improved attachment "for laying off bevels at various angles" (lines 15-16).
Date: June 16, 1914
Creator: Buckland, Charles O.


Description: Patent for a rotary tire-heater that used for and movably supported near a blacksmith's forge, where it can be swung over for use when needed. It economizes time and fuel, and is automatically adjustable.
Date: June 26, 1894
Creator: Callaway, John A.


Description: Patent for an improvement in windmills by providing “a number of converging blades which are arranged to the inner side of a casing, midway between the front and rear series of feathering wings or sails. These blades are arranged at opposite angles to the normal position of the feathering wings or sails. These blades are stationary and serve the purpose of deflecting the wind after it has operated upon the front set of wings or sails and directing it squarely against the rear set of wings or sails.” (Lines 90-101) Illustration is included.
Date: June 16, 1891
Creator: Monday, Robert

Broadcast Seeder.

Description: Patent for a broadcast seeder designed to "cultivate, plant, and subsequently roll or cover the seed, the elements for accomplishing the same being combined in a single device simply constructed" (lines 10-13).
Date: June 3, 1890
Creator: Callaway, Johnathan Asa