Today in 1880, US Patent 230815 A was issued, an invention of Alvin D. Puffer, for his “Beer Cooler.” There’s no Abstract, although in the description it includes these claims:
This invention relates to improvements in a class of apparatus for reducing the temperature of soda-water or other liquids manufactured by myself, and shown and described in Letters Patent of the United States issued to me on the 6th day of December, 1870, and the 3d day of April, 1877, respectively, the purpose of the invention shown in the first-named patent being to economize the waste of ice used in cooling liquids; and it consists, primarily, in conducting the liquid to be refrigerated through a preliminary or auxiliary series or coil of pipes or cylinders situated within the ice-water which accumulates from the melting of the ice with which the primary cylinders or coolers are packed, or otherwise taking advantage of the low degree of temperature of such ice water to reduce the temperature of the soda water or other liquid previous to its entering the primary coolers, which receive cold directly from the ice, while the invention embraced in the second-named patent consists in a new or peculiar manner of conducting ,soda water through a cooler or refrigerating apparatus, the purpose of the invention being to thoroughly and effectually carry or force the water, in its passage through a series of cooling-cylinders, against the refrigerated sides or inner surfaces of such cylinders, or to prevent the formation of a central or inner current through the body of water in such cylinders.
