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Ladder.

Description: Patent for a ladder that will allow its prop legs to be slided longitudinally of the main ladder legs to form an extension ladder.
Date: May 23, 1912
Creator: Vierheller, Paul E.
Partner: UNT Libraries Government Documents Department

Improvement in Churns

Description: Patent for a geared mechanism to attach to existing churns to aid in the production of cream into butter. Illustrations include front and side elevations.
Date: January 23, 1877
Creator: Gray, Whitley F.
Partner: UNT Libraries Government Documents Department

Improvement in Plows.

Description: Patent for an improved design of the plow consisting of a modified foot of the plow and curved blade. Illustrations included.
Date: January 23, 1877
Creator: Moore, Thomas M.
Partner: UNT Libraries Government Documents Department

Improvement in Grinding-Mills.

Description: Patent for the improvement of grinding-mills, including a description and illustration.
Date: July 23, 1872
Creator: Loy, George W. & Baker, Francis C.
Partner: UNT Libraries Government Documents Department

Improvement in Combination-Padlocks.

Description: Patent for "a padlock in which the permutation locking device is not permanently connected to the hasp; and said invention consists of a permutation device the fixed ends whereof are provided with sockets to receive the ends of a separate hasp, and be locked therewith by a notched bolt passing through the permutation device and both ends of the hasp, whereby the usual hinged connection of the parts is avoided, and the padlock made more secure and cheaper than when the parts are permanently unit… more
Date: December 23, 1873
Creator: Hall, William N.
Partner: UNT Libraries Government Documents Department

Improvement In Cotton-Gin-Saw Cleaners.

Description: Patent for "a device for quickly cleaning the saws of cotton-gins when they become gummed. It consists in a series of knives that are supported by a movable bar or frame, and may be thrust between the saws when the saws are to be cleaned (para. 4-5).
Date: April 23, 1878
Creator: Munger, Robert S.
Partner: UNT Libraries Government Documents Department

Improvement in Plows

Description: Patent for improvements in the constuction of plows in order to obtain the "best" (line 50) results of "cleanness in furrow, lightness of draft, and facility afforded in constructin the plow" (line 51-52).
Date: October 23, 1879
Creator: Woodward, Lewis E.
Partner: UNT Libraries Government Documents Department

Improvement in Corn and Cotton Planters.

Description: Patent for a new and improved construction and combination of parts used by machines that convert either into a cotton or corn planter, including illustrations.
Date: December 23, 1879
Creator: Rhea, Robert H.
Partner: UNT Libraries Government Documents Department

Stalk-Cutter.

Description: Patent for a rotary-blade stalk cutting machine. Includes instructions and illustrations.
Date: February 23, 1897
Creator: Evridge, George W.
Partner: UNT Libraries Government Documents Department

Stalk-Puller, Seeder, and Pulverizer

Description: Patent for an implement for pulling stalks, seeding, planting, and pulverizing the ground. Illustrations included.
Date: June 23, 1908
Creator: Bogue, Robert Jackson
Partner: UNT Libraries Government Documents Department

Staple-Set

Description: Patent for a staple set for building and fixing wire fences. Illustrations included.
Date: May 23, 1911
Creator: Highsmith, Aubrey O.
Partner: UNT Libraries Government Documents Department

Stalk-Puller, Seeder, and Pulverizer

Description: Patent for an implement for pulling stalks, seeding, planting, and pulverizing the ground. Illustrations included.
Date: June 23, 1908
Creator: Bogue, Robert Jackson
Partner: UNT Libraries Government Documents Department

Hydrocarbon-Stove

Description: Patent for a hydrocarbon stove that allows irons to be heated on it.
Date: April 23, 1912
Creator: Baker, Edward B.
Partner: UNT Libraries Government Documents Department

Steam Engine.

Description: Patent for a new and improved steam-engine. This design "relates to certain improvements in compound steam-engines; and it has for its objects to lessen friction and provide for the effective working of such engines" (lines 8-11).
Date: September 23, 1884
Creator: Catlin, Eli
Partner: UNT Libraries Government Documents Department

Station-Indicator

Description: Patent for "an apparatus which will indicate to the passengers of railway or street cars when the car is approaching, standing at, or leaving a station, the station or street name, distance from the last station passed or to the next station, or any point upon the line that may be desired, and wherein all of the above data may be displayed simultaneously or any one or more items" (lines 10-18).
Date: October 23, 1888
Creator: Helland, Hans & Matzow, Frantz
Partner: UNT Libraries Government Documents Department

Steam-Cushion Valve.

Description: Patent for "a new and useful steam cushion valve, and its object is to provide a steam cushion valve that will sever to automatically retard the exhaust from a cylinder as the piston approaches one of the cylinder heads." (lines 9-14) including instructions and illustrations.
Date: March 23, 1915
Creator: Henry, Nelson B.
Partner: UNT Libraries Government Documents Department

Post Hole Auger.

Description: Patent for a new and improved post-hole auger. This design consists "[i]n a post-hole auger, the combination, with the tool-guiding uprights and their revolving gearing, of the tool-carrying pinion, with the tool-securing contrivance fastened to its under side between said guiding-uprights, said pinion being adapted to revolve with said guiding-uprights, and the platform with its lowering screw or screws geared with the tool-carrying pinion" (lines 74-82).
Date: December 23, 1884
Creator: Robinson, Isiah
Partner: UNT Libraries Government Documents Department

Pneumatic Cotton Picking and Transferring Machine.

Description: Patent for pneumatic cotton picking and transferring machine that readily transfers the cotton from the receiver to a wagon where it can be taken to a gin.
Date: May 23, 1916
Creator: Tulley, William M.
Partner: UNT Libraries Government Documents Department

Electric-Lamp Attachment.

Description: Patent for an electric-lamp attachment, "the primary object of this invention being the provision of a lamp socket attachment of supporting means in combination with a switch, whereby the current energizing the filament of an incandescent lamp is so controlled as to produce different degrees of incandescence in the filament and thus produce different degrees of radiance to produce a dim or a highlight as may be desired" (lines 9-18). Illustrations included.
Date: April 23, 1912
Creator: McNeel, William Pinkney
Partner: UNT Libraries Government Documents Department

Nut-Cracking Machine.

Description: Patent for an improved nut-cracking machine receiving-hopper and feeding-chute especially for pecans, but effective for any type of nut, "whereby the nuts are caused to assume a certain position to feed one by one in succession to the cracking mechanism and to then enter the cracking mechanisms in the appropriate positions. (p. 1, lines 26 -30). The improved machine also automatically adjusts for different sized nuts, including illustrations.
Date: March 23, 1915
Creator: Gebhardt, William
Partner: UNT Libraries Government Documents Department

Tail-Light for Automobiles.

Description: Patent for a lamp for automobiles, which combines a lantern (with colored lens) with a number plate holder (which includes sections that can be inserted and removed). The lamp is positioned to show and illuminate the number plate.
Date: February 23, 1915
Creator: Lindsey, James J.
Partner: UNT Libraries Government Documents Department

Toy Repeating Gun.

Description: Patent for an improvement on toy repeating guns "which may be cocked and fired by manipulation of a single member and which embodies a magazine to receive a number of projectiles which automatically feeds by gravitative action into proper position to be projected by the striker or discharging member. " (lines 10-16) including instructions and illustrations.
Date: January 23, 1917
Creator: Osborn, Carl B.
Partner: UNT Libraries Government Documents Department

Telephone Attachment.

Description: Patent for a telephone attachment for multi-party lines, which allows the user to hold the line against eavesdropping by other users on the line and let multiple people use the line at the same time.
Date: November 23, 1909
Creator: Mitchell, Charles B.
Partner: UNT Libraries Government Documents Department
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