Today in 1909, US Patent 940438 A was issued, an invention of Theron Davis, for his “Beer Faucet.” There’s no Abstract, although in the description it includes this summary:

My invention relates to improvements in the type of beer faucet in which a chambered head carries a ball valve which is raised by a finger operated by an exterior lever, so that the beer may flow past the valve, and my invention improves the type of faucet and provides a simple means than has heretofore been employed for guiding the ball, and also provides a very simple` means for removing the washers and guide from the chamber in which the ball valve is located.