Abstract: Metering machine (1) including a frame (2) on which are mounted a feed hopper (3) and a metering sleeve (5) mounted between an outlet (6) of the feed hopper (3) and a discharge pipe (72), characterized in that the metering sleeve (5) includes a radial window (12) and is rotatable about a longitudinal axis (X) by rotation drive means (40, 41) adapted to position the metering sleeve (5) selectively in a first position in which the radial window (12) faces the outlet (6) of the feed hopper (3) and a second position in which the radial window (12) faces a feed end of the discharge pipe (72).

Abstract: A metering machine comprising a frame receiving a hopper, at least one duct opening out into the hopper in the vicinity of a bottom thereof and receiving firstly a portion of a transfer screw extending at the bottom of the hopper, and at least one metering cylinder which slidably receives a suction and delivery piston and which is connected to the duct via a plug valve, wherein the metering cylinder and the duct have axes forming an angle of approximately at least 90° between them.

Abstract: A metering machine comprising a frame receiving a hopper, at least one duct opening out into the hopper in the vicinity of a bottom thereof and receiving firstly a portion of a transfer screw extending at the bottom of the hopper, and at least one metering cylinder which slidably receives a suction and delivery piston and which is connected to the duct via a plug valve, wherein the metering cylinder and the duct have axes forming an angle of approximately at least 90° between them.