2 Matching Results

Search Results

Results: 1 - 2

Improvement in Two-Horse Equalizers.

Description: Patent for an adjustable device that redistributes weight so that two animals of unequal strength can perform their equal share of work. Includes instructions and illustrations.
Date: August 2, 1870
Creator: Sims, Zachariah B.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen