出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/05/30 03:17 UTC 版)
A beer engine is a device for pumping beer, originally manually operated and typically used to dispense beer from a cask or container in a pub's basement or cellar. It was invented by the locksmith and hydraulic engineer Joseph Bramah in 1797. Strictly the term refers to the pump itself, which is normally manually operated, though electrically powered and gas powered pumps are occasionally used; when manually powered, the term handpump is often used to refer to both the pump and the associated handle.