Abstract: A die casting vacuum valve system with mating vent blocks which include lands and grooves defining a serpentine path enabling overflow of molten material. The path restricts, stops and prevents further flow of the molten material in the case of an electrical or mechanical malfunction.

Abstract: A vacuum valve includes a first and second die block both adapted to be secured to a die of a die pair. A slot is in one of the die blocks in fluid communication with a mold cavity. A valve member is movable between a first position permitting fluid flow through the slot in a second position inhibiting fluid flow through the slot. A power operated actuator includes a reciprocal movable output member. A gear drive mechanism is coupled with the output member and with the valve for changing movement of the actuator into movement of the valve member. A controller controls the reciprocation of the actuating member.

Abstract: A valve for a vacuum die casting machine has a cover die block and an ejector die block. A slotted member and an abutting slotless member abutting the slotted member are movable between an open, fluid-passing position and a closed, fluid-blocking position. A controller directs movement of the valve between the open and closed positions. The valve is moved to its open position as the air within the cavity and associated lines is being evacuated and is moved to its closed position as the shot is injected into the die cavity. The slotted and slotless members may either be rotatable drums or elongated bars. The slotted drum includes a slotted end and an actuation end. Similarly, the slotted elongated bar includes a slotted end and an actuation end. Alignment of the slot of either the rotatable slotted drum or the movable slotted bar with the vacuum passage allows the passage of fluid.

Abstract: A vacuum valve filter system has a plurality of diverting elements sandwiching a plurality of filter elements for filtering fluid passing from a cavity of a vacuum die. The diverter elements establish a serpentine fluid flow through the filter systems. Also, the filter elements are compressible, acting as a stop in the event of an overflow of molten material entering the filter system.

Abstract: The delivery unit includes a transfer member in the form of a linear transfer plunger or slide that acts to transfer controlled amounts of lubricant from a loading chamber to a delivery chamber for delivery by air pressure to the casting apparatus. Various delivery units are included arranged in three groups having similar characteristics including a charge control mechanism and the form of the transfer plunger. Various arrangements of die casting apparatus with a lubricant delivery unit for delivering lubricant into selected locations of a die casting machine are also included.

Abstract: The delivery unit includes a transfer member in the form of two aligned plungers that act to transfer controlled amounts of lubricant from a loading chamber to a delivery chamber for delivery by air pressure to the casting apparatus. The volume of lubricant transferred is controlled by a charge control mechanism interconnecting the plungers for adjusting the distance between the plunger ends.

Abstract: The delivery unit includes a transfer member in the form of a linear transfer plunger that acts to transfer controlled amounts of lubricant from a loading chamber to a delivery chamber for delivery by air pressure to the casting apparatus. The volume of lubricant transferred is controlled by a charge control mechanism having a charge control plunger disposed below an inlet for the lubricant.

Abstract: The delivery unit for delivering includes a transfer member in the form of a linear transfer plunger that acts to transfer controlled amounts of lubricant from a loading chamber to a delivery chamber for delivery by air pressure to the casting apparatus. The volumes of lubricant transferred is controlled by a charge control mechanism having a charge control plunger disposed below the delivery chamber for delivering lubricant.

Abstract: A lifting eyebolt assembly for engagement between a workpiece to be lifted and a lifting device includes a load-bearing ring that is connected to the workpiece by a threaded fastener. The load-bearing ring includes a base portion having a threaded central cavity. The fastener includes a threaded head portion for engaging the threaded cavity of the base portion of the load-bearing ring. The fastener also includes a threaded shaft portion for engaging a threaded bore within the workpiece. In one aspect of the invention, an access hole is provided between the eye portion of the load-bearing ring and the central cavity. In addition, the head portion of the fastener includes a recess disposed beneath the access hole to permit engagement with an allen wrench passing through the access hole. In one embodiment of the invention, the workpiece includes a recess around the threaded bore within which the head portion of the fastener is received when connected to the load-bearing ring.

Abstract: A lifting eyebolt assembly for engagement between a workpiece to be lifted and a lifting device includes cylindrical collar that is held in place against the workpiece by a threaded fastener. A load-bearing ring is threadedly engaged to the collar to enclose the collar and the fastener. The load-bearing ring includes an eye portion for engaging the lifting device and a base portion for engaging the collar.

Abstract: A machine leveling assembly is provided which employs a screw-jerk mechanism for adjustably raising and lowering a machine in conjunction with a ball and socket type foot and a shim.

Abstract: A die casting vacuum valve has a cover die block and ejector die block. A cushion member is positioned in the cover die block and a reciprocating member is positioned in the ejector die block such that upon reciprocation of the reciprocating member, it contacts the cushion member and cover die block to seal the reciprocating member with the cover die block and the surrounding surface. A controller mechanism controls the reciprocation of the reciprocating member such that the reciprocating member contacts the cushion when the molten material enters the mold cavity and slot to prevent further flow of the molten material in the slot past the reciprocating member.

Abstract: a lifting eyebolt assembly for engagement between a workpiece to be lifted and a lifting device includes a cylindrical collar that is held in place against the workpiece by a threaded fastener. A load-bearing ring is threadedly engaged to the collar to enclose the collar and the fastener. The load-bearing ring includes an eye portion for engaging the lifting device and a base portion for engaging the collar.