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A dosing system for filling a receptacle with a predetermined desired weight of flowable bulk material. The system has a main dosing apparatus for charging the receptable to an extent less than the predetermined weight and an additional dosing apparatus for complementally charging each receptacle to

A dosing system for filling a receptacle with a predetermined desired weight of flowable bulk material. The system has a main dosing apparatus for charging the receptable to an extent less than the predetermined weight and an additional dosing apparatus for complementally charging each receptacle to an extent equal to the deviation between the desired weight and the actual weight resulting from the charging by the main dosing apparatus. The additional dosing apparatus has a dispensing wheel having a plurality of cells of predetermined volume. There is further provided a movably supported shroud member having a shroud face extending along a circumferential portion of the wheel and separating an inlet chamber from an outlet chamber. The position of the shroud member is adjustable for determining a minimum clearance between the shroud face and the periphery of the wheel. A spring urges the shroud member towards the wheel for allowing a resilient yielding movement of the shroud member away from the wheel. A stepping motor is coupled to the wheel for rotating the same to discharge the bulk material. A scale determines the above-defined actual weight of the receptacle. A motor-actuating arrangement causes rotation of the wheel through as many cell divisions as necessary to charge the receptacle up to the desired weight value.

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In a dosing system for filling a receptacle with a predetermined desired weight of flowable bulk material, including a conveyor on which receptacles are forwarded consecutively in a direction of advance, a main dosing apparatus for charging each receptacle, in a main dosing station along the conveyo

In a dosing system for filling a receptacle with a predetermined desired weight of flowable bulk material, including a conveyor on which receptacles are forwarded consecutively in a direction of advance, a main dosing apparatus for charging each receptacle, in a main dosing station along the conveyor, with the bulk material to an extent less than the predetermined weight; the improvement comprising an additional dosing apparatus for complementing the receptacle, in an additional dosing station along the conveyor, with the bulk material to an extent equal to the deviation between said desired weight and the actual weight resulting from the charging by said main dosing apparatus; said main dosing station being situated upstream of said additional dosing station as viewed in said direction of advance; said additional dosing apparatus comprising (a) a cellular dispensing wheel having a plurality of cells of predetermined volume; (b) means defining a material inlet chamber and a material outlet chamber spaced from one another and bounding first and second circumferential portions of said wheel; (c) a movably supported shroud member having a shroud face extending along a third circumferential portion of said wheel and separating said inlet and outlet chambers from one another; (d) adjusting means for setting the position of said shroud member for determining a minimum clearance between said shroud face and the periphery of said wheel; (e) spring means urging said shroud member towards said wheel for allowing a resilient yielding movement of said shroud member away from said wheel; (f) a stepping motor coupled to said wheel for rotating the same to discharge the bulk material through said outlet chamber; (g) weighing means for determining said actual weight of the receptacle in a weighing station along said conveyor upstream of said additional dosing station as viewed in said direction of advance; and (h) motor actuating means operatively coupled to said weighing means and said stepping motor for rotating said wheel through as many cell divisions as necessary to fill the receptacle by said additional dosing device in said additional dosing station with a quantity of the bulk material corresponding in weight to said deviation.