The development of what sort of pumping engine in 1785 gave rise to the description 'draught/draft' for its pumped product?
Draught beer present in the beer without using a widget, making it according to Guinness "more drinkable" from the bottle. In some countries such as Japan, the term "draft" applied to canned or bottled beer indicates that the beer is not pasteurized (though it may be filtered), giving it a fresher taste but shorter shelf life than conventional packaged beers. Draught beer Draught beer, also spelt draft, is beer served from a cask or keg rather than from a bottle or can. Draught beer served from a pressurised keg is also known as Until Joseph Bramah patented the beer engine in 1785,
Leavitt-Riedler Pumping Engine the Boston Water Works. At its normal speed of 50 revolutions per minute, it pumped 25 million gallons of water in 24 hours. According to C. P. Miller, when first brought into operation, the engine attracted national attention as "the most efficient pumping engine in the world" ("Power"). The engine's pump valve mechanism was invented by Prof. Alois Riedler (1850-1936) of the Royal Technical College of Charlottenburg (now the Technical University of Berlin) in Berlin, Germany, and was key to its high-speed operation at a hydraulic head of 128 feet. The engine itself is of an unusual triple expansion, three-crank