valve means 56 adjustable line filter 57 and a flexible vacuum line or hose 58 joined to a tube fitting 59 attached to the shoe means 11 and communicating with passageway means 60 leading to the filling chamber 33 with this arrangement activation of the vacuum means 13 serves to evacuate filling chamber 33 as well as any die cavity disposed beneath such chamber at the same time the sub atmospheric pressures or vacuum within the filling chamber draws the powdered materials from the hopper means and filling tube into the filling chamber and die cavity communicating therewith once the die cavity is filled powder builds up within the filling chamber 33 until the lower end of feeder tube 55 is covered by the powder this disrupts further discharge of material from tube 55 activation an deactivation of the vacuum means is controlled by valve means 56 which may be manual as shown or automatically responsive to positioning movement of the shoe means 11 the intensity of the vacuum may be regulated to desired sub atmospheric pressures within the skill of the art but is fundamentally determined by the weight and flow characteristics of the particulate or powder being handled having described the basic structural features of feeding apparatus according to this invention its use and operation in conjunction with a die press to form powder metal products will be understood from the schematic showing in fig4 7 as seen in fig4 apparatus 10 is positioned atop a planar die table 70 equipped with parallel spaced hold downguide.