UNT Libraries Government Documents Department - 1,772 Matching Results

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Propelling Vehicles.

Description: Patent for a means of transportation similar to a bicycle, the "essential feature" (line 7) of which "resides in the combination, with the vehicle, of an extensible frame adapted to freely slide back and forth…" (line 7-10). Includes illustrations.
Date: February 12, 1884
Creator: Moore, Baldwin S.
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Railway-Tie

Description: Patent for a railway tie that can be "firmly secured in the road-bed and which will hold single or double rails" (lines 10-11) so that they cannot be accidentally displaced, including illustrations.
Date: December 1, 1891
Creator: Budington, Albert G.
Item Type: Refine your search to only Patent

Railway Tie.

Description: Patent for a new and improved railway-tie. This design "is to produce a simple and inexpensive tie which may be easily secured in a road-bed and to which the rails may be solidly and conveniently fastened and which is also adapted to be used in connection with wooden sleepers, being constructed so that it may be easily placed in position between wooden sleepers without tearing up the rails" (lines 9-16).
Date: July 26, 1892
Creator: Budington, Albert G.
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Rat Trap.

Description: Patent for a new and improved rat trap. This design consists of "the pendulum bait-frame, in combination with triggers and attached to cam-springs and weighted trap-doors and rollers" (lines 59-62).
Date: February 7, 1882
Creator: Younger, Henry
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Reel

Description: Patent for an improvement in reels. The reel features improvements in how to attach the end of a film strip to the reel for winding.
Date: June 12, 1917
Creator: Allen, Harry Porter
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Refrigerating Apparatus.

Description: Patent for an economic and durable refrigerating apparatus that cools food by "reducing the temperature of the air in a partially closed chamber by the evaporation of water brought about through the medium of capillary attraction, and likewise to provide for automatically maintaining a predetermined level of water in the water chamber of the apparatus, and a thorough ventilation of the refrigerating chamber thereof" (lines 16-24).
Date: October 23, 1894
Creator: Carleton, Ernest William & Odell, James Madison
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Register for Barber's Chairs.

Description: Patent for a new and improved barber's chair. This design relates to certain improvements in registering devices for barber-chairs, and has for its object to provide means whereby a correct tally can be kept of the persons shaved and the number of hair-cuts which have been performed during the day, week, or month. . . . [The] invention is only applicable to the style of barber-chairs that have a tilting motion backward and forward, for the purpose of more conveniently placing the person when be… more
Date: July 31, 1883
Creator: Lane, Fernando G.
Item Type: Refine your search to only Patent

Rolling Windshield.

Description: Patent for an automobile attachment which protects the said automobile from adverse weather conditions. The apparatus is unique in its simple construction, practicality, and ability to "be rolled into a small compass" when not in use (lines 20-21).
Date: June 7, 1921
Creator: Gerhard, William H.
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Rotary Engine.

Description: Patent for a new and improved rotary engine. This design consists "[i]n a rotary engine, the combination of the wheel having two circumferential channels and radial recesses, with the notched pistons, fitted in the radial recesses of the wheel, and the adjustable cam connected with the side casings and fitted into the notches of the pistons" (lines 90-96).
Date: August 17, 1880
Creator: Cross, David L.
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Rotary Steam Engine.

Description: Patent for a new and improved rotary steam engine. This design "first, provide[s] a novel form of valve for regulating the induction and eduction of steam to and from the cylinder; second, [it] provide[s] novel devices for reversing the movements of the rotating pistons; and, third, [it] provide[s] novel combinations of the parts of which the engine is composed"
Date: July 19, 1881
Creator: Cross, David L.
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Safety Stop for Elevators.

Description: Patent for a new and improved safety stop for elevators. This design "consists in a lever pivoted to the bottom of the car, and provided with a spring for throwing it into position transversely to the car-bottom, so that the ends of the lever can catch on horizontal bars secured to the sides of the elevator-shaft. A rope or cable is secured to one end of the lever and to the car-elevating cable, and keeps the spring taut, and prevents it from throwing the lever unless the elevating-cable breaks… more
Date: March 25, 1884
Creator: Saunders, Ellison
Item Type: Refine your search to only Patent

Sanitary Bed-Spring Cover.

Description: Patent for an invention that relates to the improvements in sanitary covers for attachment to the spring of a bed and the spring of the mattress. The sanitary cover provides a solution to repel vermin and noxious insects.
Date: July 5, 1921
Creator: Luedecke, Henry H.
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Sanitary Cuspidor.

Description: Patent for a sanitary cuspidor which remains closed when not in use and will "return automatically to closed position" (lines 10-11) immediately after use and includes one illustration.
Date: October 21, 1913
Creator: Fousek, Karl
Item Type: Refine your search to only Patent

Sash-Holder

Description: Patent for "an improved device, easily attached,cheap of manufacture, and durable and efficient in use, which will dispense with the employment of weights and cords, and which will not be affected by the Weather to allow the window to fall by the shrinkage of the holder" (lines 14-20).
Date: June 10, 1890
Creator: Stukes, John Marion
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Saw-Gin.

Description: Patent for improvements in cotton-gins by having two compartments, one above the other. “The upper roll-box being especially adapted to raw cotton and the lower one to half-ginned cotton as the lint and seeds are only partially separated in one roll-box and are then delivered into another, where the operation is completed.” (Lines 24-29) This operation used less time to separate the seed and lint. Illustration is included.
Date: October 27, 1891
Creator: Bachman, Joseph A.
Item Type: Refine your search to only Patent
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