UNT Libraries Government Documents Department - 7,226 Matching Results

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Wind and Water Motor.

Description: Patent for improvements in wind and water motors in which it will not only increase its efficiency and durability but also, be capable of operating in tidal rivers, streams and other currents. This is an improvement of patent no. 588572 of the same inventor. Illustration is included.
Date: January 9, 1900
Creator: Hardaway, Robert Early
Item Type: Refine your search to only Patent

Cotton Checker and Cultivator.

Description: Patent for improvements in cotton checkers and cultivators by “providing a device in which the width of the hills or rows may be adjusted to suit the requirements of various grades of soil.” (Lines 15-17) Another improvement is to provide a “means to which the plows of the cultivator may be simultaneously raised or lowered, and when so raised or lowered may be kept in their adjusted positions.” (Lines 19-22) Illustration is included.
Date: January 11, 1910
Creator: Hamilton, Robert
Item Type: Refine your search to only Patent

Changeable Gearing.

Description: Patent for changeable gearing by using an axle, bevel-gears, stub-shafts and a crank-axle to construct the changeable gear, so that the “sprocket is locked to rotate with the crank-axle in one direction, while it may rotate freely of the axle in opposite direction, and, furthermore, that the sprocket may be locked to rotate with the axle or may be caused to rotate at a higher-speed than the axle.” (Lines 8-14.) Illustration is included.
Date: January 8, 1901
Creator: Brady, Alford
Item Type: Refine your search to only Patent

Animal-Trap

Description: Patent for an animal trap whose specially designed cylinders play a crucial role in tiring the animal while it is struggling to escape the trap doors Ultimately, succumbing to exhaustion and hastening its drowning in the trap's water reservoir.
Date: January 14, 1913
Creator: Link, William A.
Item Type: Refine your search to only Patent

Combined Billing and Journal Sheet.

Description: Patent for improvements in combined billing and journal sheets there by each sheet in the journal will serve as a billing sheet, a duplicate billing sheet, and a journal page at the same time. (Lines 18-20) Further, the bound book will serve as a permanent journal after the bills have been removed. (Lines 25-26) Illustration is included.
Date: January 4, 1910
Creator: Hartley, James William
Item Type: Refine your search to only Patent

Boat.

Description: Patent for certain new and useful improvements in boats to "increase the speed and insure greater safety and stability in sailing vessels, row-boats, canoes, and the like" (line 12-14).
Date: January 11, 1898
Creator: Evesson, Martin V. B.
Item Type: Refine your search to only Patent

Automatic Time-Controlled Operating Mechanism.

Description: Patent for improvements in automatic time-controlled operating mechanisms by using a combination of a spring-actuated rotary disk, a clock mechanism, and co-acting cams to automatically operating at predetermined times, electric switches and other devices, such as locking and unlocking doors of warehouses. Illustration is included.
Date: January 18, 1910
Creator: Chappel, James M.
Item Type: Refine your search to only Patent

Can-Opener.

Description: Patent for "new and useful Improvements in Can-Openers." (line 5-6) including instructions and illustrations.
Date: January 9, 1909
Creator: Davis, James Walter & McBee, Marshall E.
Item Type: Refine your search to only Patent
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