Device for regulating the contents of a container

A device for transferring a lubricant to a suction chamber of a lubricating pump, said device comprising:

• a container having a container wall, a container bottom, and a plurality of openings in the container bottom;
• a rotatable stirring blade mounted in said container and being rotatable about an axis of rotation, said stirring blade being operable to free air trapped in the lubricant upon rotation of said stirring blade therein;
• a scraping device, mounted on said stirring blade, for scraping off the lubricant that has adhered to the container wall;
• a measuring unit for measuring the upper level of the lubricant in the container;
• and
• at least one radial stationary flank structure disposed in the container and spaced from the container bottom at least in the vicinity of the container center,
• wherein said stirring blade can be rotated under at least a portion of said radial stationary flank structure, and
• wherein said radial stationary flank structure, said stirring blade and said scrapping device are operable to prevent a build-up of peak and valley formations on the surface of the lubricant thereby facilitating reliable measurement of the fill level of the supply substance in the container by said measuring unit.