UNT Libraries Government Documents Department - 525 Matching Results

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Improvement in Sewing-Machine Thread-Guards.

Description: Patent for "a guard attachment to the Wheeler & Wilson sewing-machine for preventing the thread from being thrown off the tension by the work, and for preventing the thread from running off the spool onto the spindle." (Lines 6-11) Includes instructions and illustrations.
Date: December 21, 1875
Creator: Roosevelt, Lillian
Item Type: Refine your search to only Patent

Oil Press Mat.

Description: Patent for a new and improved oil press mat. This design "is to flexibly connect the metal plates or leaves of a three-leaved oil-press mat in such manner that when the mat with the bags of meal interposed between its leaves is subjected to pressure for the purpose of expressing the oil the parallelism of the leaves will be maintained and endwise shifting of the same prevented. A further object is to provide a fastening . . . which shall be stronger, more durable, and more positive in its funct… more
Date: June 7, 1881
Creator: Ahrenbeck, William
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Motor.

Description: Patent for a new and improved motor. This design "has for its object to provide a motor of the class . . . that shall possess superior advantages in point of simplicity, cheapness, durability, and general efficiency; and to these ends [the] invention consists in the construction and novel arrangement of parts" (lines 17-23).
Date: September 30, 1884
Creator: Chilton, William
Item Type: Refine your search to only Patent

Stock Collar.

Description: Patent for a new and improved stock-collar. This design is "for the purpose of positively and unmistakably identifying cattle and other like stock, and to obviate the necessity of marking and branding cattle, &c., which shall be light, simple, strong, and durable in construction, thoroughly effective for the purposes designed, easily attached to and removed from the necks of cattle, &c., which shall be cheap and inexpensive of manufacture, and not liable to become lost, misplaced, broken, or de… more
Date: April 6, 1886
Creator: Roberts, John Harrison
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Mail Bag Fastening.

Description: Patent for a new and improved mail-bag fastener. This design "is to provide a fastening for mail-bags, which may be quickly manipulated to fasten or unfasten the bag. To this end the invention consists, essentially, of a slide formed with key-hole slots and carried by an overlapping flap, the said slide being adapted to engaged headed studs that are secured to one side of the main portion of the pouch and passed through apertures formed in the other side of the pouch" (lines 7-16).
Date: September 3, 1889
Creator: Roosevelt, James A.
Item Type: Refine your search to only Patent

Cut-Off Valve.

Description: Patent for a new and improved valve. This design consists in "the valve-seat of [the] slide-valve, the entrances of whose steam passages form seats for auxiliary valves pivoted to [the] yoke on a rod, whose stud occupies said slot in upper portion of [the] arm pivoted to [the] pendant from [the] main valve-rod and terminating in [the] tappet, the same being combined with the adjustable stops" (lines 55-63).
Date: October 1, 1889
Creator: Moore, Robert B.
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Gage.

Description: Patent for a gage that has a beam with a saw kerf at one end, a clamp made up of a tube with parallel wings that are inserted into the kerf, a scribing point in the tube, "and means for clamping the separated ends of the beam tightly against the parallel wings of the clamp" (lines 57-59).
Date: November 12, 1895
Creator: Holmes, Elijah H.
Item Type: Refine your search to only Patent

Riveting-Mandrel.

Description: Patent for a riveting-mandrel "for riveting the overlapping ends of sheet metal to form pipes, tubes, or the like" (lines 10-12) including illustrations.
Date: June 1, 1897
Creator: Mantey, John F.
Item Type: Refine your search to only Patent

Cultivator.

Description: Patent for an improvement to "shovel-plows" that "is adapted to cultivate between the rows of corn, &c., and one in which the rearwardly-extending moldboards can be adjusted [...] in case the rows are close together or far apart. The cultivator is also arranged so that the depth of the furrow can be regulated" (lines 14-21).
Date: May 28, 1901
Creator: Dinkins, James Oscar
Item Type: Refine your search to only Patent

Well-Auger.

Description: Patent for a well-boring auger is designed to improve the drilling process by multi-functional features of the auger that can be placed inside of a well-casing to cut a hole or can be used itself to cut through the casing.
Date: November 3, 1903
Creator: Hutchins, Charles N.
Item Type: Refine your search to only Patent

Level.

Description: Patent for a spirit level, which measures more accurately than other models and allows quicker calculation of where the wood needs to be moved to be level.
Date: November 23, 1909
Creator: Brittain, Thomas H.
Item Type: Refine your search to only Patent

Insectifuge Fertilizer for Cotton.

Description: Patent for an insectifuge fertilizer for cotton, which promotes the growth of the cotton plant and prevents boll weevils and cotton worms from attacking cotton plants by making them distasteful to the insects through the application of a mixture of bicarbonate of soda, nitrate of soda, sulfate of copper, and crushed decorticated cotton seed.
Date: August 23, 1910
Creator: White, Reuben G.
Item Type: Refine your search to only Patent

Saddle Stirrup

Description: Patent for stirrups. This invention is designed to be automatically detached from the stirrup strap in the case of the rider being thrown. Illustration included.
Date: November 22, 1910
Creator: Shultz, James F.
Item Type: Refine your search to only Patent
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