Improvement in folding tables. (open access)

Improvement in folding tables.

Patent for combination folding tables that fold into a convenient traveling-trunk.
Date: March 21, 1876
Creator: Arnold, James Edwin
System: The Portal to Texas History
Improvement in Gas-Liquefying Pumps. (open access)

Improvement in Gas-Liquefying Pumps.

Patent for "the construction and arrangement of a pump used in ice-machines for liquefying [sic] the gas" (lines 12-14) including illustrations.
Date: March 21, 1876
Creator: Boyle, James
System: The Portal to Texas History
Improvement in Cotton-Presses. (open access)

Improvement in Cotton-Presses.

Patent for improvements in cotton-presses by using “a combination of a horizontal double reversed screw, an open semi-cylindrical and longitudinal screw-threaded recess, provided with wheels or rollers to sustain and carry the superincumbent weight or pressure.” (Lines [47]-[52], p. 2) Illustration is included.
Date: March 21, 1876
Creator: Jones, Henry B.
System: The Portal to Texas History