494 Matching Results

Search Results

Torpedo-Guard.

Patent for torpedo guards that can be applied without needing to place the vessel in a dry dock, as well as giving the option of retracting the torpedo guards when not needed. Includes illustrations.

Date: May 21, 1918

Creator: Rolf, Frederick G.

Partner: UNT Libraries Government Documents Department

Process of Leaching Copper Ores

Patent for "a method of recovering copper by the electrolysis of copper solutions of any suitable kind, obtained by the lixiviation of the ore" (lines 9-12). The improvement in this method is that almost all the sulfuric acid and other leaching agents are used up prior to the copper going to the electrolysis tanks which increases the amount of copper recovered and the reduction of accumulated biproducts.

Date: October 22, 1918

Creator: Hahn, Albert W.

Partner: UNT Libraries Government Documents Department

Support.

Patent for improvements in supports for cots or mosquito nettings with an objective to present a novel and convenient device that is applied in operative positions.

Date: July 4, 1916

Creator: Pewther, Judson C.

Partner: UNT Libraries Government Documents Department

Switch-Stand

Patent for switch stands. The improvement is to provide a mechanism in connection with stands of the character specified for moving the points of a switch to deflect trains from the main track on to the switch, wherein locking mechanism is provided for locking the switch points in safety or main line position and connected to the operating mechanism for moving the points in such manner that when operating arm for the switch is moved into the inoperative position after returning the points to th… more

Date: September 21, 1915

Creator: Philips, Smith F.

Partner: UNT Libraries Government Documents Department

Tag-Fastener

Patent for a device that attaches a tag to an item with rope or cord wrapping.

Date: March 14, 1916

Creator: Hine, Frank B.

Partner: UNT Libraries Government Documents Department

Stamp and Coin Envelop.

Patent for stamp and coin envelope that has "a separate pocket for receiving coin, postage stamps or sundry articles to be transmitted through the mail in such a manner as to be kept separate from the contents of the envelop and also to insure safe delivery" (lines 9-14), including illustrations.

Date: November 4, 1913

Creator: Zivley, Dennis C.

Partner: UNT Libraries Government Documents Department

Pocket Index

Patent for Pocket Index

Date: September 26, 1916

Creator: Urmston, William B.

Partner: UNT Libraries Government Documents Department

Nut-Lock.

Patent for a nut-lock for car wheels, which holds the wheel securely together.

Date: February 18, 1908

Creator: Mayo, William C.

Partner: UNT Libraries Government Documents Department

Uterine Supporter.

Patent for a uterine supporter which has a soft and flexible bulb supporting the uterus and a more rigid opposite end keeping the bulb in place. The device attaches to a cord on the waistband.

Date: July 16, 1907

Creator: Baird, William T.

Partner: UNT Libraries Government Documents Department

Process for Making Cattle Food

Patent for providing "a process whereby cattle food may be economically produced from sotol which, when combined with certain other food products, will produce an equivalent to alfalfa and which can be produced at a cost far below that required to provide a feed of the same amount of alfalfa &c., &c." lines 17-23

Date: February 26, 1918

Creator: Thatcher, Frank

Partner: UNT Libraries Government Documents Department

Lamp Attachment

Patent for a new and improved Lamp Attachment which instantaneously extinguish lamp mechanically, without necessitating the employment a person's breath or the elevation of the lamps chimney.

Date: July 8, 1919

Creator: Rodriguez, Gavino

Partner: UNT Libraries Government Documents Department

Method of Welding

Patent for an improved method of welding broken frames in portions of machinery that are difficult to access, with illustrations and instructions.

Date: April 23, 1918

Creator: Brown, Charles Henry

Partner: UNT Libraries Government Documents Department

Process of Vaporizing Liquids.

Patent for an engine designed for combustion of kerosene with air. The patent notes improvements for regulating the mixture ratios and maximizing efficiency by heating the air intake.

Date: December 21, 1920

Creator: McClintock, Charles Davis

Partner: UNT Libraries Government Documents Department

Projecting-Machine.

Patent for improvements to a projector that relate to advertising. The inventor references adjustments to a previous patent, No. 1069521 from August 5, 1913. Adjustments include making the device more accurate and reliable, and to adapt it to be able to display opaque surfaces, postcards, and other printed items during any time of day. Additionally, the revoluble slide magazine has a mechanism that allows it to operate continuously without assistance from the operator.

Date: October 7, 1919

Creator: Bernard, Oscar C.

Partner: UNT Libraries Government Documents Department

Upward-Current Separating Process and Device.

Patent for upward-current separation processes and devices to allow for working with changes in conditions and proportions with ease.

Date: July 3, 1917

Creator: Allen, Charles

Partner: UNT Libraries Government Documents Department

Engine.

Patent for a rotary engine with a coupled rotary shaft and piston. This engine uses a lubricant for keeping parts of the engine cool, including illustrations.

Date: April 29, 1919

Creator: Sheridan, Leslie M.

Partner: UNT Libraries Government Documents Department

Packing-Gasket

Patent for a packing gasket comprising a soft metal sleeve formed to a non-leaking joint between connected pipes.

Date: November 6, 1920

Creator: Allison, Jesse H.

Partner: UNT Libraries Government Documents Department

Tire

Patent for an improvement to the tire. Designed to increase tire endurance.

Date: December 19, 1919

Creator: Brown, Archie E.

Partner: UNT Libraries Government Documents Department

Paper-Clip

Patent for an improved paper-clip "which is extremely simple in construction, permitting ease of manipulation and the manufacture thereof at a greatly reduced cost" (lines 12-14).

Date: September 2, 1919

Creator: Lea, Thomas

Partner: UNT Libraries Government Documents Department

Tatting-Shuttle.

Patent for an improvement in shuttles for making tatting which both winds the thread and uses spring tension to prevent it from unwinding, including illustrations and instructions.

Date: June 17, 1919

Creator: Houseman, George Alfred

Partner: UNT Libraries Government Documents Department

Packet-Holder.

Patent for a packet holder used to wrap and tie a bundle of mail or letters made using a cord and clasp plate.

Date: January 27, 1920

Creator: Ashby, Bert

Partner: UNT Libraries Government Documents Department

Nut Lock.

Patent for a new and improved nut lock. This design consists in "[t]he combination of the bolt, the nut having a dovetailed groove across its face, of uniform width throughout its length, and a recess at one side of said groove, and a key having tapered sides and sliding into the dovetailed groove from one side of the nut, said key having a pointed end to engage the bolt and also provided with a projecting part to be bent over into engagement with the recess in the nut" (lines 69-78).

Date: April 19, 1892

Creator: Robinson, William D.

Partner: UNT Libraries Government Documents Department

Punture-Healing Composition.

Patent for "improvements in puncture healing compounds". A beeswax, paraffin, rosin, and linseed oil mixture will be injected into the innertube or other air compartment of a "pneumatic tire" and will repair any punctures without deteriorating the material of the inner tube.

Date: April 1, 1919

Creator: Weaber, Marie R. & Clemens, Hermann

Partner: UNT Libraries Government Documents Department

Mop.

Patent for an attachment that can be added to a standard broom which allows the broom to function as a mop.

Date: October 10, 1922

Creator: Glenn, William H.

Partner: UNT Libraries Government Documents Department

Currently Limited To

Clear All Filters

Available Filters

Share