Abstract: A receiver for a pneumatic conveyor for receiving and discharging particulate matter includes an upstanding receptacle having an inlet port and a gravity feed discharge opening. A flow control valve at the discharge opening controls discharge flow of particulate matter from the upstanding receptacle. The flow control valve includes a tapered valve seat circumscribing the discharge opening and a tapered plug selectively engageable with the valve seat from below to selectively occlude the discharge opening. The plug is connected to a stem mounted within the upstanding receptacle to permit reciprocal motion of the stem and plug substantially parallel to the discharge flow of particulate matter. An actuator reciprocates the stem selectively. In a first position the plug engages the valve seat, occluding the discharge opening and forming a substantially air tight seal, and in a second position the plug is displaced from the valve seat, permitting discharge of particulate matter.

Abstract: A briquetting machine for compacting metal chips into briquettes with a movable die that provides plural die cavities. After metal chips are loaded into a loading chamber from a hopper, a chip compacting ram pushes the chips at a high speed and low pressure into one of several bores, disposed within a sliding die gate, and against an endplate. The bore and endplate together constitute a die and define at least two die cavities. After the ram reaches a predetermined low pressure, the ram then proceeds at a relatively low speed and relatively high pressure to compress the chips within the die into a briquette. Upon reaching a predetermined compaction pressure, the ram retracts from the bore. After such time, the die gate is moved to a location where one bore lies before an ejector cylinder. The ejector cylinder then extends into the bore, expelling the briquette from the bore.