UNT Libraries Government Documents Department - Browse
Showing: 271 - 294 of 11,360 Results.
Results as a List of Thumbnails and Descriptive Information Results as a Grid of Images Print This Result Page Keep up to Date with an RSS feed of results matching your query.
Filters have been applied to your results. Adjust settings from lower-left menu.
Description: Patent for improvements on machinery for the manufacture of ice.
Date: August 29, 1871
Creator: Sears, James E.
Description: Patent for improved combination locks, with a bolt that is locked or unlocked by the combination of spindles and pivoted buttons. The invention combines the spindles in to an "annular ring having letters or numbers and a series of different shaped pegs or combinations of letters or figures or both jointly" (pg 1).
Date: September 12, 1871
Creator: Hall, William N.
Description: Patent for the improvement of medical compounds for treating chills and fevers. The patent states the components of a "True Ague Pill."
Date: October 10, 1871
Creator: Bevill, Robert
Description: Patent for the improvement in machines for making paving-blocks.
Date: October 24, 1871
Creator: Brooks, Samuel Wallace
Description: Patent for "an apparatus in which the gases from one or more forges, instead of passing off unconsumed into the atmosphere, enter a furnace and are burnt therein, thereby furnishing heat for the generation of steam in a boiler connected with said furnace, which steam is used to drive a fan that impels a blast into each forge, and is also used to propel an engine that operates a hammer, the exhaust from the engine being conducted to the tuyeres of the forges through pipes in which are placed red-hot iron plates, which decompose the steam, taking up the oxygen, and liberating the hydrogen which is burnt in the forges." (Lines 12-25) Includes instructions and illustrations.
Date: November 7, 1871
Creator: Morris, Joseph R.
Description: Patent for "a new combination of fluting and sad-iron, of such kind that the upper fluting-roller will serve as handle for the sad-iron, there being thus no loose or separate parts required for the two functions." (Lines 17-21) Includes instructions and illustrations.
Date: November 14, 1871
Creator: Franklin, Edward A.
Description: Patent for a refrigeration apparatus "in which a continuous operation is maintained by means of a current of ether or other volatile fluid which liquefies at a low temperature." (Lines 18-21) Includes instructions and illustrations.
Date: November 28, 1871
Creator: Mühl, A.
Description: Patent for new and improvements in Combined Pipes and Cigar-Holders which consists in "forming or constructing the pipe with an intermediate chamber which serves as a receptacle for a sponge or other absorbent porous material." (Lines 15-20) Illustrations are included.
Date: December 5, 1871
Creator: Bond, Virgil A.
Description: Patent for improvements to the construction of "of the various parts of the [ice machine], whereby the reconversion of the ether into liquid before it reaches the freezing-vessel or chamber is better assured" (para. 3).
Date: December 12, 1871
Creator: Mühl, Andrew
Description: Patent for "a rule for giving to the backs of saw-teeth such an angle as will allow the teeth to be made of proper strength and at the same time to be chambered out and pointed so that they will cut the wood like chisels instead of scraping or tearing the wood." (Lines 14-19) Includes instructions and illustrations.
Date: December 19, 1871
Creator: Littlepage, Caleb V.
Description: Patent for "an apparatus to be used with the common soldering-iron, whereby the same can be heated and kept heated continually while the iron is used." (Lines 6-9) Includes instructions and illustrations.
Date: December 19, 1871
Creator: Williams, Joseph
Description: Patent for improvements in combined axle-boxes, sand-bands, and casings for carriage-wheel hubs. The patent includes instructions and an illustration.
Date: December 26, 1871
Creator: McNalley, Micheal