Today in 1902, US Patent 708942 A was issued, an invention of Harry Torchiani, for his “Apparatus For Racking Off Beer.” There’s no Abstract, although in the description it includes these claims:

My invention relates to apparatus for filling barrels, kegs, or the like with fermented liquids, such as beer; and one of the objects of the invention is to collect the foam that arises in a barrel or keg being charged and prevent it from passing into another barrel or keg that is being charged; and another object of the invention is to provide improved means for firmly connecting the racking-off faucet with a barrel or keg and for readily disconnecting it therefrom; and to these ends my invention comprises the novel details of improvement that Will be more fully hereinafter set forth, and then pointed out in the claims.