Today in 1908, US Patent 900076 A was issued, an invention of Sylvester J. Asbell, for his “Beer-Dispensing Apparatus.” There’s no Abstract, although in the description it includes only this summary:

My invention relates to apparatus for dispensing beer and similar beverages stored under pressure; and particularly to apparatus of this nature in which the beverage is of either different kinds or qualities and therefore requires separate storing vessels and separate discharge means therefor in order to avoid intermingling. The principal object of my invention is to so construct an apparatus of this character that it may be thoroughly flushed with a place where the vessels are situated in order to shut off the several vessels fromthe system of piping t: be cleansed.