Today in 1905, US Patent 804979 A was issued, an invention of Carl Rach, for his “Brewing Apparatus.” There’s no Abstract, although in the description it includes this summary:

My present invention has reference more particularly to the construction of that part of brewing apparatus which has to do with the mashing portion of the process.

The object of my invention is to so construct the apparatus as to facilitate the mashing, the heating of the mash, its transfer from one vessel to another, and the separating of the thick mash from the thin mash, or, as it is commonly termed, lauter mash.