UNT Libraries Government Documents Department - 60 Matching Results

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Improvement in Medical Compounds.

Patent for a new medical compound to remedy chills and fever.

Date: February 7, 1871

Creator: Lister, Henry

Item Type: Patent

Improvement in Gas-Furnaces and Forges.

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… more

Date: November 7, 1871

Creator: Morris, Joseph R.

Item Type: Patent

Improvement in Screw-Taps.

Patent for "a tool that shall combine the features of an expanding tap and reamer for reaming and tapping holes of different sizes" (lines 29-32) with illustrations and instructions.

Date: November 7, 1876

Creator: Melvin, Josiah Walter

Item Type: Patent

Lubricating car-axles

Patent for an improvement in axle lubrication involving an oil-elevator, axle-box and journal-box. Includes illustrations.

Date: January 7, 1873

Creator: Morris, Joseph R.

Item Type: Patent

Improvement in Processes of Coloring Enameled Photographs.

Patent for improving the coloring process of enameled photographs by using collodio-gelatine instead of warm gelatine.

Date: September 7, 1875

Creator: Williams, William W.

Item Type: Patent

Automatic Water Trap for Cisterns and Other Receptacles.

Patent for a new and improved water-trap. This design consists in "the combination, with a bent main pipe, of a vessel secured on the said main pipe and connected at its top with the interior of the said main pipe, a pin held on the bottom of the said vessel, a fixed sleeve provided with a spiral groove and engaged by said pin, a grooved pin held in the said fixed sleeve and resting at its top end on the bottom of the said pin, a roped connected with the said grooved pin, and a weight held on t… more

Date: August 7, 1888

Creator: Pickering, Charles H.

Item Type: Patent

Baling Press.

Patent for a new and improved baling-press. This design has for its object "to provide a press in which the material to be baled can be compressed into bales of the desired sizes, and then emptied from the baling-box by tilting up the tail-board, which is provided with angle irons to catch under the bale" (lines 15-20).

Date: August 7, 1888

Creator: Hoop, Friedrich W. J. & Isaac, Joseph

Item Type: Patent

Apparatus for Washing and Scrubbing Gas.

Patent for a washer-scrubber that cleans gas from "tarry matter, ammonia, sulphureted hydrogen, carbonic acid and other impurities" (lines 14-16). The machine divides gas into streams, sprays it with washing liquor, spreads it over reticulated and perforated plates.

Date: March 7, 1893

Creator: Fitzgerald, John H.

Item Type: Patent

Swing.

Patent for improvement in swings, including instructions and illustrations.

Date: February 7, 1888

Creator: Goebel, Herman A.

Item Type: Patent

Railway Signal.

Patent for a new and improved railroad signal. This design consists in "[a] continuous electric conductor extending beside a railroad, a contact-maker borne by a train, an electric galvanic battery, a stationary transmitter, and a train provided with transmitting and receiving instruments on two or more members of the train and connected with the electric circuit in multiple arc . . . whereby a message can be sent to each member simultaneously" (lines 8-17).

Date: June 7, 1887

Creator: Armstrong, James Henry

Item Type: Patent

Reporter's Desk.

Patent for a new and improved collapse-able desk. This design consists in "a top and base arranged . . . one above the other, an intermediate connection inclining from a vertical line, having a portion of the front side, near the upper end, in contact with the rear edge of the top, forming a rest or stop for said top, and a portion of the rear side, near the opposite end, in contact with the front edge of the base, which latter forms a rest or stop for the lower end of the section, and brackets… more

Date: September 7, 1886

Creator: Weiner, Isidore H.

Item Type: Patent

Flexible Scraper.

Patent for a new and improved flexible scraper. This design "consist[s] of the concave board, the sheet of rubber secured by bolts to the concave face of the board, the handle, the sockets secured to the convex face of the board and handle, respectively, and the braces" (lines 52-57).

Date: December 7, 1886

Creator: Kaelin, Albert J.

Item Type: Patent

Disk Plow.

Patent for "a new and useful improvement in disk plows, the object being to construct a plow of the kind described in which the resistance encountered by the main cutting or master disk in operation is counteracted by oppositely-disposed disks, one of which acts as a subspoiler, the other as a jointer, making a partial penetration of the land, which is followed by the master-disk in the succeeding furrow." (Lines 24-33) Includes instructions and illustrations.

Date: April 7, 1896

Creator: Stewart, John A.

Item Type: Patent

Texas Attorney General Opinion: H-1176

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: May Harris County require performance an payment bonds from contractors doing work on contracts not in excess of $25,000.

Date: June 7, 1978