Today in 1900, US Patent 664824 A was issued, an invention of Gottlieb Schmidt, for his “Cold Air Pressure Apparatus For Beer or Other Fluids.” There’s no Abstract, although in the description it includes this summary:

My invention relates to an apparatus involving an air-chamber and a refrigerator adapted more particularly for cooling beer or other fluid, wherein cold air will be directed under pressure to said fluid where it is to be dispensed, the construction and operation of the parts thereof being hereinafter set forth, and the novel features thereof pointed out in the claims.

And here are the original drawings filed with the application: