Automatic machine for preparing espresso coffee

摘要: The machine includes a motor-driven conveyor screw (66) provided in supply duct (62) connecting the coffee grinder (52) to percolation chamber (78) move ground at rate higher than that of its from grinder. Preferably has an associate prechamber (64) into which opens. Means for closing and compressing charge (C) comprise tamper (92) is reciprocable between withdrawn position it does not occupy closes side opposite advanced sealing chamber. through-chamber with open ends, one being continuation other, as part means chamber, associated counter-tamper obturator (94) movable towards away other end both allow compression by seal even further beyond said expel compressed coffee.