Today in 1909, US Patent 921032 A was issued, an invention of Ralph Waldo Webster and Leuig Chew, for their “Counter-Pressure Bottling-Machine for Beer, Mineral Waters, and the Like.” There’s no Abstract, and all it says in the description is that Schwartz “invented new and useful Improvements in Counter-Pressure Bottling-Machines for Beer, Mineral Waters, and the Like,” which is essentially the title. A bit more is subsequently added, saying the “invention relates to improvements in machines for filling bottles, jars, and other like vessels, in which a counter-pressure is created to enable beers, mineral waters, and the like, having a natural or artificial condition or pressure, to be bottled Without undue foaming or loss of condition.” For the rest, you have to dive into a full reading of the application.