Devices for progressive throttling to complete shut-off of the discharge in machines for dispensing fluidizable material in weight portions

摘要

This invention relates to a shut-off device for the outlet from a tank holding fluidizable material. The shut-off device comprises a plug placed inside the tank, and a weigher having an operating mechanism connected to the plug, the weigher being adapted, before a full weight portion is discharged through the outlet and the outlet is fully closed, to operate the plug via the operating mechanism to move the plug into a position in which the plug only partially closes the outlet.