UNT Libraries Government Documents Department - 1,652 Matching Results

Search Results

Results: 1 - 24 next

Acetylene-Gas Generator

Description: Patent for an improved automatic acetylene-gas generator which allows the carbid vessel to recharge with carbid without permitting the escape of gas, and also to simplify the construction of the generator.
Date: March 19, 1901
Creator: Elkins, George L.
Item Type: Refine your search to only Patent

Adding-Machine.

Description: Patent for an inexpensive, simple, easily operated, and improved registering machine that is meant to add numbers without mistakes. It uses revoluble number wheels and a spring-returned shaft among other materials.
Date: March 21, 1893
Creator: Brooks, Augustus J.
Item Type: Refine your search to only Patent

Adjustable Light Shade and Reflector.

Description: Patent for a new adjustable light shade and reflector with "a shade and a support therefor so provided with joints that the shade may be given any desired angle of reflection, relative to the light, and its relative distance from the light may be regulated" (lines 13-17), which includes illustrations and instructions.
Date: March 7, 1911
Creator: Spivey, Lillian Hale
Item Type: Refine your search to only Patent

Advertising Device.

Description: Patent for "a simple and inexpensive advertising device adapted to be placed on street corners and other public places and capable of exciting the curiosity and attracting attention, and thereby directing the attention of persons to the advertisement" (lines 11-16).
Date: March 20, 1894
Creator: Attaway, Henry F.
Item Type: Refine your search to only Patent

Aeroplane.

Description: Patent for improving the fuselage for aeroplanes by "securing double strength throughout the body and [...] be light and durable" (lines 12-14). Provides rudder, landing gear, telescopic joint, and sprocket gear improvements, including illustrations.
Date: March 28, 1916
Creator: Smith, Glen B.
Item Type: Refine your search to only Patent

Aeroplane.

Description: Patent for an improved rotary airplane engine patterned after the Gnome type with extra blades attached to the engine cylinders.
Date: March 25, 1913
Creator: Decker, Harry R.
Item Type: Refine your search to only Patent

Agricultural Implement.

Description: Patent for a new and improved sweep. This design consists "in a sweep of a suitable shape and construction having attached to each of its rear corners a vertical bar or wings, which extends parallel to the course of the plow and backward a suitable distance beyond the sweep proper . . . The object of [the] invention is to attach to the rear corners or wings of a sweep bars or runners, which rest upon the ground and steady the sweep and prevent it from wabbling or dodging while in use" (lines 14… more
Date: March 4, 1890
Creator: Cameron, Hugh L.
Item Type: Refine your search to only Patent

Agricultural Implement.

Description: Patent for "agricultural implements to be used for tilling the soil and planting, either separately or at one and the same operation, and has for its object to reduce the expense incurred by the general practice of first preparing the land for planting and subsequently sowing the seed. By this inventions the land can simultaneously prepared and the grain deposited therein." (Lines 8-17) Includes instructions and illustrations.
Date: March 2, 1897
Creator: Dycus, George W.
Item Type: Refine your search to only Patent

Air-Compressing Apparatus.

Description: Patent for a new air compressing apparatus which employs two kinds of tanks called high pressure containers and low pressure containers charged by means of an air compressing engine.
Date: March 16, 1915
Creator: Gebhardt, William Charles
Item Type: Refine your search to only Patent

Amusement Device

Description: Patent for an amusement device. This invention uses a ballast and simulates the appearance and motion of a floating ship under way. Illustrations included.
Date: March 28, 1911
Creator: Corneliussen, Ivar
Item Type: Refine your search to only Patent

Anal Speculum.

Description: Patent for a new and improved anal speculum. This design is "to so construct the several parts that there will be no rough or raised edges to interfere with its insertion in the anal passage; secondly, to so construct [the] improved speculum that it may be readily used as a bi-valve or dilator; thirdly, to form a locking-joint on the meeting edges of the shells forming the speculum, whereby the sections are prevented from overlapping each other to avoid pinching or injury to the walls of the an… more
Date: March 25, 1890
Creator: Shuford, Quincy Adams
Item Type: Refine your search to only Patent
Back to Top of Screen