Automatic apparatus for the preparation of beverages coffee express from powder expresso

摘要

Ground coffee (21) is loaded into receptacle (2). Vibrator (22) ensures granules fall freely into control valve (3), delivering (52) measured quantities on demand to espresso percolator (5). Latter is simultaneously supplied with hot water (51) under pressure through control valve (4), and coffee passes through delivery conduit (52) aligned with cups (7) from storage stack (70). Various active components are synchronized by coordinating mains-fed electronic controller (6) responding to demands of successive users.