Today in 1905, US Patent 798112 A was issued, an invention of Anthony Pelstring, for his “Beer Cooling Apparatus.” There’s no Abstract, although in the description it includes these claims:

This invention relates generally to the dispensing and cooling of beer, the object being a simple and efficient apparatus whereby the beer is passed from the keg through a more or less tortuous passage and cooled during its passage therethrough, means being provided whereby the beer is made to pass through more or less of said passage-way as may be desired.

Another object of the invention is to provide a peculiar construction of cooling apparatus having a plurality of discharge-pipes connected therewith so that beer of different degrees of temperature can be drawn from one and the same cooling apparatus.