UNT Libraries Government Documents Department - 5 Matching Results

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Improved Cultivating-Plow.: Patent for a cultivating plow with a series of cutting-disks and digging-hoes, including illustration.
Improvement in Cotton-Pickers.: Patent for "new and useful Improvements in Hand-Machines for Gathering Cotton in the Field" (lines 3-5), including instructions and illustrations.
Improvement in the Manufacture of Black Bottle-Glass.: Patent for manufacturing black bottle-glass by using "combination with other ingredients, an earthy slate of a peculiar character, called "clay-slate," for the purpose of furnishing the coloring-matter of the glass,as well as forming one of the bases of the glass itself."(line 10-15) Instruction only, no illustration.
Machine for Sawing Marble in Obelisk Form.: Patent for "a new and Improved Machine for Sawing Marble Blocks in Polygonal Taper Form" (lines 4-6), including illustration.
Method of Repairing Circular-Saw Teeth.: Patent for enabling the teeth of circular saws to be drawn out and hammered for repair, including illustration.