Today in 1898, US Patent 608744 A was issued, an invention of John L. Alberger, for his “Process of And apparatus for Gasing Beer or Similar Liquids.” There’s no Abstract, although in the description it includes this summary:

The object of the present invention is to provide an improved process of and apparatus for gasing beer, the special object being to provide a process and apparatus which shall enable the operation to be performed more quickly than by the processes and apparatus previously in use for this purpose.