Today in 1916, US Patent 1166599 A was issued, an invention of Andreas R Keller, for a “Mash and Strainer Tank Machine.” There’s no Abstract, but in the description, the overview states the “invention relates to new and useful improvements in mash and .strainer tank machines, and is designed to increase the efficiency of such machines by improving the mixing, percolation, heating or cooking, straining, and drawing-off features, thereby overcoming the predominant and objectionable disadvantages of the machines now in use.”