Today in 1936, US Patent 2048266 A was issued, an invention of Thomas Alfred Jenkins, for his “Beer Cooling and Dispensing System.” There’s no Abstract, although in the description it includes this summary:

This invention relates to improvements in beer cooling and dispensing systems and consists in the construction; combinations and arrangements as herein described and claimed.

The general object of my invention is the provision, in a manner-as hereinafter set forth, of a beer cooling and dispensing system that is complete in arrangement; unique in design; attractive; durable; sanitary; efficient and economical in operating performance.

The basic thought and purpose of conception, as embodied in this invention, is the creation of a beer cooling and dispensing system, wherein the cooling tank is simple; the means for cooling highly efficient and the entire system complete in function and sanitary throughout. Means for filtering the beer are practical in every sense and perform the important function of protecting various valve protecting elements. Means for controlling pressure; retaining gases and for flushing and emptying the entire system during cleaning periods are provided.