Today in 1903, US Patent 747111 A was issued, an invention of Paul B. Abrell, for his “Beer-Tap.” There’s no Abstract, although in the description it includes this summary:

The objects of this invention are to provide a beer-tap which can be readily and easily applied to a barrel or similar package to enable an impervious connection to be secured and the tap to be locked in such position until its removal is desired, to obtain such a connection before the flow of liquid is started, to obviate the use of a mallet to remove the bung of a package and secure greater convenience, and to obtain other advantages and results, some of which will be hereinafter referred to in connection with the description of the working parts.

The invention consists in the improved beertap and bung therefor and in the arrangements and combinations of parts of the same, all substantially as will be hereinafter set forth and finally embraced in the clauses of the claim.