UNT Libraries Government Documents Department - 33 Matching Results

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Paper Clip.

Description: Patent for new and useful improvements in a paper clip. This invention relates to a paper clip a has for its principal object the production of a simple and efficient device for holding numbers sheets of paper together.
Date: October 21, 1920
Creator: Holt, Frank P.
Item Type: Refine your search to only Patent

Plow

Description: Patent for a modification of a plow that improves ease of use. Additionally the plow adds wings that allow plowing of soil at different angles.
Date: October 21, 1919
Creator: Richardson, William T.
Item Type: Refine your search to only Patent

Power-Jack.

Description: Patent for improvements on the power-jack, which help bring liquids to the surface. Specifically designed "to provide a power mechanism for balancing the load or work at all points of the stroke." (lines 11-13), including illustrations.
Date: October 21, 1919
Creator: Dayton, William L.
Item Type: Refine your search to only Patent

Boring-Bar.

Description: Patent for improvement in boring-bars, particularly in the ability to hold the tool securely "in place during operation and which will prevent the cutting tool from becoming loose in its socket or holder" (lines 12-15). Additional operations include the boring bar turning off or cutting on the outside in instances "where the lathe will not swing over the carriage" (line 19) and the cutting on both "the inside or outside of the work equally as well" (lines 16-18).
Date: January 21, 1919
Creator: Bird, John M.
Item Type: Refine your search to only Patent

Washing-Machine.

Description: Patent for improving the way washing machines clean materials. This invention also simplifies the inter-working parts that make the device function properly.
Date: January 21, 1919
Creator: Tackaberry, William J.
Item Type: Refine your search to only Patent

Lubricator for Eccentrics

Description: Patent for a lubricator for eccentrics. This invention is a means for supplying oil to a lubricating chamber as a method of regulating the flow of lubricant from said chamber. Illustration included.
Date: April 21, 1908
Creator: Helm, Clyve Dolphin
Item Type: Refine your search to only Patent
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