Apparatus for Producing Ammoniacal Gas. (open access)

Apparatus for Producing Ammoniacal Gas.

Patent for a new and improved refrigerator and ice machine. This design "consists in an improved construction, whereby the gas is relieved of its moisture before entering the condenser, a better apparatus is obtained, and repairs are facilitated and cheapened" (lines 12-16).
Date: July 21, 1885
Creator: Lee, Charles B.
System: The Portal to Texas History
Rocking-Chair Fan. (open access)

Rocking-Chair Fan.

Patent for a rocking chair fan that spins when the operator begins rocking in the chair. It easily adjusts to any model of rocking chair and is noiseless.
Date: July 21, 1896
Creator: Martyr, Leonard W. & Martyr, Ernest E.
System: The Portal to Texas History
Means for Laying Dredging-Pipes. (open access)

Means for Laying Dredging-Pipes.

Patent for a method of laying dredging pipes, which allows ships to pass through without removing them, allows air to release from the pipes to prevent movement of the pipes during pumping, a method of removing the contents before taking them out of the water, and an easy method removing the pipes completely.
Date: July 21, 1908
Creator: Smith, Phillip S.
System: The Portal to Texas History