Abstract: A ladle for a molten metal includes a main body having a hollow interior and an opening for receiving the molten metal. The main body has a sidewall with a nozzle formed therein. The nozzle defines an axis of rotation for the main body. The nozzle contacts, seals and is in fluid communication with the mold. The nozzle is configured to deliver the molten metal to a mold when the main body is rotated from a first position to a second position.

Abstract: A molten metal supply device designed to mount a ladle-rotating motor on a support frame and dispose a ladle-rotating rotation transfer mechanism in a predetermined link of a ladle-carrying link mechanism so as to be able to perform precise position control (tilt angle control) of a ladle. The rotation transfer mechanism is driven by the ladle-rotating motor mounted on the support frame so as to rotate the ladle. The rotation transfer mechanism is provided in a link of the ladle-carrying link mechanism for carrying the ladle. The rotation transfer mechanism is constituted by two parallel linkages. Each parallel linkage has a pair of bar links whose opposite ends are attached to two rotors respectively. When the ladle-rotating motor is being stopped, the ladle can be kept in a predetermined posture by the parallel linkages even if the ladle-carrying link mechanism has any operating posture.

Abstract: A molten metal feed apparatus of a die casting machine preventing shortening of the lifetime of a sleeve due to local heating of the sleeve, provided with a ladle having a receptacle for holding the molten metal and a conveyor system for conveying the ladle to a predetermined feed position of the sleeve of the die casting machine and tilting the ladle to pour the scooped up molten metal into the sleeve, wherein the position of a front end of a pouring spout of the ladle with respect to the sleeve is changed in accordance with a change in posture of the ladle while pouring the molten metal into the sleeve.

Abstract: A method for filling a ladle cup of a ladle assembly with molten aluminum to reduce formation of aluminum oxides. The ladle cup is rotated into alignment with an axis of a ladle arm, which carries the ladle cup, such that a plane defined by the ladle cup rim is generally parallel to the ladle arm axis and the opening of the ladle cup faces parallel to a surface of the molten aluminum. The ladle cup is inserted into the bath of molten aluminum while maintained in alignment with the ladle arm axis. When the ladle cup reaches its final position within the bath of molten aluminum, the ladle cup is rotated to a desired angular orientation, which corresponds to a desired shot weight, and then is raised out of the molten aluminum while being retained in the desired angular orientation.

Abstract: The volume of melt within the ladle dipper is maintained essentially unchanged in its position relative to the volume of melt remaining in the holding crucible during the ladling operation in order to avoid undesirable turbulence and the formation of foam in the melt.

Abstract: A small, simple tool used to meter precise volumes of molten metal. It has been effectively utilized by the bullet caster to make expandable projectiles for hunting. This is accomplished by using the tool to meter a small volume of molten soft lead alloy into a bullet mould, the completing the cast with a molten lead alloy of higher strength. This creates a dual-alloy bullet with the structural strength necessary for high velocity shooting, but having a nose soft enough to effectively expand upon impact with a target.The tool consists of a long, hollow barrel with a short drop tube installed in one end. The drop tube is mounted in the nozzle end of the barrel and projects into its hollow interior. The vacant space inside the barrel adjacent to the drop tube forms a reservoir to hold molten metal. When the barrel unit is submerged into a pot of molten metal, the alloy enters the nozzle and flows up the drop tube, thereby filling the interior of the barrel.

Abstract: The molten metal transfer crucible of the present invention filters molten metal during transfer of the molten metal to a receptacle such as a mold. The molten metal transfer crucible of the present invention is fitted with an external removable filter blade. The removable filter blade contains a filter element and is positioned with respect to an inlet in the transfer crucible such that molten metal is filtered by passing through the filter element contained in the blade while the crucible is being filled with molten metal. During operation molten metal can be intermittently back-flushed through the filter element contained in the blade. Back-flushing molten metal through the filter element extends the life of the filter element, and thereby increases the hours the transfer crucible may be operated between blade changes.

Abstract: An automatic ladling apparatus for conveying molten metal from a furnace to a die casting machine or the like. The ladle dipper is carried through its ladling cycles by means of cooperating link assemblies mounted on an upright base or pedestal. The assemblies include a motion generating link assembly having a generating arm with an outer end adapted to move through a generally horizontal path with a downwardly curved vertical portion at one end. The other end of the generating arm is connected to a crank arm mounted on a crankshaft that is turned by an appropriate drive through a Geneva motion mechanism. The motion of the generator arm is further controlled by a rocking link connected between the arm and the base. The outer end of the generator arm is connected to a second link assembly that includes a main link connected at one end to the base and a carrier link connected to the main link at one end and adapted to carry the ladle dipper at its other end. The attitude (i.e.

Abstract: A molten metal transfer device for withdrawing a selected quantity of molten metal from a bath includes structure defining a chamber disposed within the bath, the chamber including a first opening through which molten metal can flow from the bath into the chamber and a second opening through which molten metal can flow outwardly from the chamber. A cup-like bucket is disposed within the chamber for vertical reciprocating movement, the bucket having a generally vertically oriented slot included as part of its sidewall. The device includes a displacement mechanism for urging the bucket laterally toward engagement with the surface of the chamber. The device also includes mechanisms for easily removing buckets and chambers and replacing them with new buckets and chambers.

Abstract: The improved crucible of the present invention both filters molten metal during the transfer of the molten metal from a supply receptacle such as a melting furnace to a receiving receptacle such as a mold. The transfer crucible of the present invention may be either portable or permanently mounted. The present invention relates to both the design of the improved transfer crucible and to the method for using the improved transfer crucible. The transfer crucible of the present invention is fitted with one or more removable blades, each of which contains a filter element. Molten metal can be filtered while the crucible is being filled with molten metal, during transfer of molten metal, or if desired molten metal can be filtered both on entry into and on exit from the transfer crucible.

Abstract: The machine has a casting ladle mounted rotatably on a movable support member which conveys the ladle between a filling station and at least one casting station. The movable member carries a motorized rotary disc cam cooperating with a cam-follower which controls rotations of the ladle. The cam profile includes a larger sector of increasing radius to cause a pouring rotation of the ladle at the casting station and a smaller sector of decreasing radius to cause a return rotation of the ladle to the upright position after casting. The cam has, between the two sections, a profile portion which is re-entrant towards the axis of rotation of the cam and in which the cam-follower is engageable selectively to cause a sharp rotation of the ladle from the upright position to an inverted position, so as to release the skin or crust of solidified metal from the inside of the ladle when the latter is at a cleaning station.

Abstract: Automatic ladle systems adapted for use in metal die casting operations are disclosed herein. In a preferred form the invention comprises a rigid, supporting base on which a control platform is rotatably mounted for radially moving a ladle between a metal filling and metal pouring positions. The ladle is coupled to the platform by support arm structure extending from the platform which may be raised or lowered with a hydraulic cylinder. A parallelogram linkage system couples the ladle to the end of the support arm structure. Reach extension apparatus extending between the linkage and the platform moves the ladle outwardly with respect to the base during movement to a filling position. The reach extension apparatus and the parallelogram linkage allow the horizontal position of the ladle pour spout to remain substantially constant during raising and lowering of the ladle to prevent spillage. A tilting system interconnected with the linkage facilitates ladle draining.

Abstract: A device for metering and transferring liquid metals. It includes a supporting structure and a hollow sleeve open at both ends on the supporting structure. A pouring spout is on one end of the sleeve and has a passageway therethrough communicating with the hollow interior of sleeve. A stopper rod extends into the hollow sleeve from the other end thereof to be shiftable between a position seating on the pouring spout and sealing the passageway therethrough and a position removed from the pouring spout to permit liquid metal to flow into and out of the sleeve. The stopper rod is shiftable between positions and the pouring spout includes a bushing mounted in the passageway and having a threaded opening therethrough and a threaded plug interengaged with the threaded bushing and having an orifice therein to provide for communication between the interior and the exterior of the sleeve through the pouring spout.

Abstract: An apparatus has means for containing a level of flowable hardenable material therein, and means is selectively operable for carrying a predetermined amount of the hardenable material from the level thereof in the containing means to a preselected position beyond the level of the remaining hardenable material in the containing means. Means is associated with the carrying means in its preselected position for extracting therefrom another amount of the hardenable material predeterminately less than the predetermined amount.A method of operating the apparatus is also disclosed.

Abstract: A ladle of an automatic molten metal feeding apparatus of a die-casting machine is supported by a pair of links which are driven in synchronism with a constant velocity relation whereby a lateral shift range of the pouring end of the ladle is regulated.

Abstract: An automatically operating casting ladle apparatus for the scooping up and delivery of an exactly measured amount of molten metal to die-casting machines, casting molds, etc., in which an exact positioning of the casting ladle is ensured, on the one hand by control means regulating the depth and the angle of tilt of the ladle in the metal bath on filling, and on the other hand by a compensatory movement to ensure that the point of impact of the stream of molten metal remains fixed at each pouring. The control and drive units are, as far as possible, located outside the radiation range of the crucible, and they are otherwise protected against heat influence by surrounding casings.

Abstract: A ladling apparatus for picking up a preselected amount of molten metal from a bath, and for transferring and pouring this molten metal into the cold chamber of a die casting machine. The apparatus includes an elongated transfer arm which is swingably movable within a substantially vertical plane between filling and pouring positions, in which positions the arm extends outwardly from opposite sides of the apparatus. A ladle assembly is hingedly mounted on the transfer arm adjacent the free end thereof. The ladle assembly is freely hinged in a suspended upright position when the arm is in the filling position and is maintained in this upright position as the arm swings toward the filling position. The ladle engages the arm, which acts as a solid stop and causes tilting of the ladle assembly, as the arm approaches its pouring position to result in automatic pouring of the molten metal into the cold chamber.