12 Matching Results

Search Results

Results: 1 - 12

Improvement in Machines for Washing Photographs

Description: Patent for "a new and improved apparatus for washing photographic prints after fixing, for the purpose of removing the double hyposulphite of soda and silver formed in the body of the paper during the process of fixing" (lines 6-11).
Date: August 17, 1875
Creator: Caylor, J. L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Earth Scrapers

Description: Patent for improved earth scrapers, the class of which are " mounted on Wheel and provided with slatted carriers" (pg 1). This earth scraper has a novel system that allows the machine to be turned around and still used where other machines cannot do so (pg 1).
Date: August 27, 1872
Creator: Smith, Amroy B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Cotton Choppers

Description: Patent for improvement in cotton choppers creating a more effective machine relating to the cultivating and chopping of cotton. Includes labeled figures and descriptive text
Date: August 16, 1873
Creator: Garrett, Joseph M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Wagon-Sheet and Tent

Description: Patent for an improvement in wagon sheet coverings / tent. The improvement is in the sides of the wagon sheet can be extended by loosening straps to fall the length to the ground and be staked to the earth. This gives a tent to sleep under after a day of traveling.
Date: August 13, 1871
Creator: Fitzgerald, M. M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen