Today in 1927, US Patent 1646916 A was issued, an invention of Camilo Recuero and Gaudencio Lamarque, for their “Apparatus For Serving Out Beer.” There’s no Abstract, although in the description it includes these claims:
The present invention relates to apparatus for serving out beer and similar beverages and has for its object to provide an improved device of this kind capable of avoiding the disadvantages shown in the methods heretofore used.
As is generally known, in taverns, barrooms, or other places where beer is served out to consumers, this is generally effected from barrels and with the aid of carbonic acid under pressure, thus the conditions of expenditure, as regards satisfaction of the consumer and the amount of liquid wasted depend entirely upon the skill of the barman.
Further, during the hot season, the in crease in the demand for cooled beverages does not allow for sufficient time for serving out the liquid under normal. conditions so that waste is very likely to occur with the consequent losses to the proprietor of the place.
With the aid of the present invention all these disadvantages are avoided, since the improved device provides for an absolute control of discharge of foamless beer, or team alone, just as desired, whereby it is possible to serve out the beer or other liquid at complete satisfaction 0;! even the most exacting consumer and, simultaneously, there are no possibilities for any amount of liquid being wasted. As well, the present device constitutes an important improvement over the devices known in the prior art since it provides for more continuous dispensing.
The device according to the invention is characterized by. the fact that beer is admitted within a container of suitable form, size and material and, through the provision of tubes opening into discharge cocks combined one with the other, the discharge of the liquid, or of the foam formed by the pressure gas, may be exactly controlled so that the discharge is effected entirely at will. In this manner, when serving out’ a can or glass of beer, first-1y liquid beer without foam is discharged until reaching the desired limit, and then a suit able amount of foam is added until filling completely the can or glass used.