Air-Chamber. (open access)

Air-Chamber.

Patent for an air-chamber that pumps in air confined with a flexible diaphragm to spray or diffuse fluid, including illustration.
Date: June 18, 1861
Creator: Creuzbaur, Robert
System: The Portal to Texas History
Improved Horse-Power. (open access)

Improved Horse-Power.

Patent for an improvement in horse-powers (tread-powers) by changing the construction and arrangement of the driving wheels.
Date: May 18, 1869
Creator: Dillaha, J. G.
System: The Portal to Texas History
Improvment in Cotton Cultivator. (open access)

Improvment in Cotton Cultivator.

Patent for improvements in cotton cultivators: "designed more especially for cultivating cotton, scraping the earth away from the young plants, and thinning out the same" (lines 11-12).
Date: December 18, 1866
Creator: Foster, A. K. & Foster, B. H.
System: The Portal to Texas History
Improvement in Combined Plow-Carrier and Cotton-Chopper. (open access)

Improvement in Combined Plow-Carrier and Cotton-Chopper.

Patent for improvement in combined plow-carrier and cotton-chopper by “combining with a plow-carrier, a revolving wheel, placed at right angles with the line of direction of the plows, and provided with a number of horizontal cutters at the ends of its spokes, for the purpose of cutting square across the ridges of earth cast up by the plows, in which cotton seed is sown, and dividing the ridges into isolated hills, each containing one or more cotton-plants.” (Lines 23-29) Illustration is included.
Date: May 18, 1869
Creator: Kirtley, Fielding L.
System: The Portal to Texas History