Abstract: A method for manufacturing railcar coupler headcores includes providing a first corebox having internal walls defining at least in part perimeter boundaries of at least one rotor core cavity. The method further comprises at least partially filling the at least one rotor core cavity with a first sand resin to form at least one rotor core. The method also includes providing a second corebox having internal walls defining at least in part perimeter boundaries of at least one headcore cavity. The at least one rotor core is positioned within the second corebox. The method also comprises at least partially filling the at least one headcore cavity with a second sand resin to form at least one headcore.

Abstract: A one-piece water jacket core for an internal combustion engine is formed by providing a first core box portion and a second core box portion adapted for assembly and formation of the one-piece water jacket core. The first core box portion includes a first cavity adapted to form a lower portion of the one-piece water jacket core and the second core box portion includes a second cavity adapted to form an upper portion of the one-piece water jacket core. A plurality of movable members are pivotally carried adjacent to, and preferably by, one of the core box portions. Each of the pivotal movable members includes a portion adapted to form a water jacket port and to be pivoted, after assembly of the first and second core box portions, to a position forming one of the water jacket ports in the one-piece water jacket core. The invention is particularly adapted for the formation of one-piece water jacket cores with a cold-cure process.

Abstract: A method and apparatus for the manufacturing in one operation of a complex core, such as a core for manufacturing a double-volute turbo-charger housing. The apparatus includes two separable core box halves and a segmented mandrel removably disposed between the two separable core box halves. The mandrel has two removable segments which allow for the removal of a completed core.

Abstract: A core box for producing casting cores having a core defining member made of a first material and defining a core molding cavity. A stream of molding substance is introduced into the core molding cavity when a core is molded. A core marker is made of a second material and is located in the core member in fluid communication with the cavity. The second material is more wear-resistant than the first material, being a non-deformable hard metal. The core marker is a shaped insert for defining a predetermined configuration of a casting core when a molding substance is introduced into the core molding cavity. The shaped insert is located at a position within the core molding cavity at which position high velocity flow or changing velocity flow of a stream of molding substance is intercepted.

Abstract: An apparatus for producing a hollow foundry core, whereby core halves are first formed and fully hardened on an inner hollow-mold part and an outer mold-box half. These core halves are then sprayed with an adhesive and joined to form a finished foundry core. The apparatus reduces the production costs and improves the accuracy as to the size of the cores. The forming of the core halves on a center plate and the bringing together of the core halves respectively occurs by moving together both core-box halves in one operation.

Abstract: An entirely automatic, cold box type machine for molding an integral connecting core, which machine is provided with a sand blowing mechanism and a gassing mechanism, these mechanisms being suspended above an upper frame of the molding machine and traversable, and with a liftable drag car being mounted on the platform of the molding machine, characterized in that a rotatable connecting core feeding device is provided at one side portion outside the molding machine, a reversing unloader is provided at the other side portion, and a connecting core transfer car having a connecting core lifting device is traversably suspended from the upper frame in parallel with the sand blowing mechanism and the gassing mechanism.

Abstract: A foundry core is disclosed for molding a cast blank machinable to produce a crosshead piston head member. The core shapes an exterior surface region of the blank section corresponding to the ring belt in the machined product. The core-shaped exterior surface provides a readily accessible reference for accurately positioning the core during subsequent machining operations.

Abstract: A uniform reticulated intrastructure (56) is placed in a container (58) and surrounded by beryllium powder (72). After closing the container (58) and applying heat and pressure, a hardened form is taken out of the container. The intrastructure (56) is then removed leaving a lightweight solid beryllium body (72) suitable for use as a mirror (52). Means (62, 66) are provided to control the spacing of the intrastructure elements during the forming process.

Abstract: A moulding process includes closing a multi-part die onto hollow-forming members to produce a hollow core mould. The mould is used in the "cold" process to produce a hardened foundry core about the cavity-forming members. Parting the die causes the cavity-forming members and the hardened core to be pivoted so that the hardened core rests on a conveyor belt with the longitudinal axes of the cavity forming members aligned with the longitudinal axis of the conveyor belt and with the cavity forming members lying in respective slots in a web fixed transverse to the conveyor belt. Subsequent movement of the conveyor belt causes the web to abut the hardened core and to extract the cavity-forming member from the hardened core as the hardened core is moved on the conveyor belt. In a modification of the process, the cavity forming members are partly extracted from the hardened core before the pivoting movement takes place.