Abstract: For forming a lifting lug upon an ingot mould, either as a replacement for a broken-off lug on an existing mould or as a lug on a newly-produced mould formed in the first instance without lugs, a mounting plate is secured to the mould by fasteners driven through said plate and into the mould; then an array of fillets is welded to the plate in correspondence with and in conformity with the desired lug configuration; whereafter a consolidating plate is positioned to overlie the outer edges of the fillets and is welded to the latter.

Abstract: A strand guiding apparatus to be used in a continuous casting plant has a frame for the supporting devices of the strand, which frame is actuated by an adjustment means having a displacement ruler detachably connected to the frame by means of a quick lock. Upon release of the quick lock and retraction of the displacement ruler, the frame can be removed vertically upwardly.

Abstract: The invention pertains to apparatus for forming elongated concrete structures, such as walls and the like, by slip forming. In particular, the invention is directed to the concept of slip forming walls of asymmetrical transverse cross section as required in the forming of highway barrier walls. The concrete slip form includes opposite sidewalls and open front and rear ends. At least one of the sidewalls is vertically adjustable wherein the sidewall configuration being formed thereby may have a height variance with respect to the opposite sidewall being formed. The form includes fixed wall portions associating with the adjustable wall portion and power means permit adjustment of the vertical adjustable wall. It is also within the scope of the invention to provide a form wherein both sidewalls are vertically adjustable, and the form includes means for introducing steel reinforcement into the formed wall, and periodically permitting accessory equipment to be embedded into the wall.

Abstract: An improved method and apparatus for forming an electrical connection between electrical conductors by soldering. A lead wire with a coating of insulating material has a selected portion of the coating removed by a flame from a torch. The bared portion of the lead wire is wrapped around a second conductor such as a terminal, and the two conductors are then immersed in a low temperature, ultrasonically agitated liquid solder bath. The terminal also can have insulation which is burned off by the flame before the soldering takes place. The insulation on the lead wire can be burned off when it is wrapped around the terminal.

Abstract: A shot sleeve, for receiving a metered quantity of melt through an inlet or filling opening and connected to the mold cavity, has its volume continuously diminished in such a manner as to maintain a constant communication between the space above the melt in the shot sleeve and the mold cavity for escape of all the gas or air above the melt into the mold cavity before the opening of the shot sleeve into the mold cavity is completely closed by the advancing melt. This is effected, during the shot-pre-filling phase, by an accelerated motion of an injection piston from a rest position, at which the filling inlet to the shot sleeve is open, through the shot sleeve toward the mold cavity opening. As a result of the accelerated motion of the piston, the melt spreads over the melt engaging surface of the injection piston and the formation of a standing wave is prevented.

Abstract: A divider strip with an upstanding screed for use with a pouring of a pair of adjoining concrete slabs, such strip being designed to be supported by a horizontal series of laterally spaced stakes which are set below a predetermined grade level, and being adapted when in its operative position to have wet concrete poured on opposite sides thereof in order to form a pair of adjoining slabs with a key joint therebetween. A dual reentrant bend at the upper marginal portion of the strip establishes a downwardly facing locking channel for the upper ends of the stakes and also establishes an upstanding screed which extends upwardly to the grade level and is for the most part of single thickness.

Abstract: A method for changing a steel slab width during continuous casting of the steel slab, which comprises moving at least one side member of a mold at a speed not higher than 2.0 mm/second during the continuous casting.

Abstract: A mold for continuously casting of billets comprises an inner copper mold and an outer steel envelope surrounding the mold. The outer envelope is affixed to the inner mold by threaded tie rods which are anchored to parallel longitudinally extending ribs on the exterior faces of the inner mold. These ribs define grooves therebetween and the interior faces of the envelope have parallel longitudinally extending ribs facing the grooves. The facing ribs and grooves define therebetween longitudinal channels for a cooling liquid for the mold.

Abstract: A die frame assembly wherein an ejector plate having ejector pins extending therefrom is reciprocally mounted on support posts in the frame assembly through replaceable and lubricated bushings on the ejector plate. The support posts extend between the base or clamping plate and the central sprue section of the frame for rigid support thereof. The support posts are desirably hardened or case-hardened for long wearing.

Abstract: The casing is stationary and has at least one end a transverse end wall which defines an opening affording access to the end of the casting mould. A screen axially projects from the transverse end wall and extends at least partly around the opening for the purpose of screening the machine operators off from any splashes of molten metal which might be thrown out of the mould due to a faulty socket core.

Abstract: In apparatus for continuously casting metals between endless moving belts, a pulley device for carrying a casting belt, including outer, belt-supporting structure having at least two belt-engaging surface zones respectively located on opposite sides of the median plane of the pulley, wherein at least one of the two zones is variable in circumference with respect to the other of the two zones for adjusting the transverse profile of the belt-supporting surface of the pulley. The pulley device in one form comprises a belt-supporting structure which is circumferentially expansible at each of two surface zones and means for effecting controlled expansion of the structure separately at each of the two zones.

Abstract: An apparatus is provided for automatically sealing insulation tubes comprising a turn table intermittently turned through a part of a revolution and having a plurality of tube holders disposed in a circle about its central axis, a friction wheel disposed below the turn table and engaging the tube holders for rotating them about their respective vertical axes, a mechanism for stopping the rotation of a predetermined number of the tube holders at predetermined positions along the path of revolution of the turn table, a device for heating the tubes at predetermined positions along the path of revolution of the turn table and a mechanism for supplying a molten solder to the holders being rotated about their axes at a predetermined position in the revolution of the turn table whereby the molten solder is distributed to the peripheral parts of the tube.

Abstract: Aluminum is produced from low-grade aluminum alloys by melting an Al-X alloy wherein X has a higher specific weight than aluminum and forms an eutectic mixture rich in aluminum, the starting melt being on the side of the eutectic mixture rich in aluminum, and radially cooling the melt from the inside to the outside while under the effect of centrifugal force.

Abstract: A process for producing shaped parts from synthetic and similar workable materials by filling molds under pressure, hardening and removing the articles from the molds. Movable, essentially identical mold carriers are provided with article-related mold inserts preselected for the work cycle and locked in place in the carriers. The forming tool is filled with the synthetic, it is exposed for a given time to certain temperature and pressure conditions, the tool is opened and the inserts are expelled. The form carriers are then outfitted with another set of form inserts while the first set of mold inserts are removed from the molding cycle.

Abstract: A portable vacuum investment casting apparatus includes a box-like housing having an upper generally flat supporting wall with a vertical conduit terminating in an opening in the top wall. A vacuum conduit is connected to the vertical conduit and terminates in an outer sidewall in large and small conical connectors to receive a conventional shop or household vacuum cleaner hose. A manually adjustable valve is connected in an exhaust pipe from the vacuum conduit for controlling the vacuum level. The apparatus is powered from a conventional household type vacuum cleaner device or similar fan unit which establishes a relatively high air flow with a relatively low vacuum. A small vacuum gauge tube is mounted on the front wall adjacent to the vacuum setting control. The top end is connected to the vertical conduit and the lower end has a supply tube with an adjustable end member to set the initial liquid level.

Abstract: Disclosed is a casting machine in which first and second die halves define a die cavity in the shape of the article to be cast and a narrow runner opening into the cavity. A shot sleeve, having an upwardly oriented injection chamber, is connected to one of said die halves such that the top end of the injection chamber is in communication with the runner. A plunger, disposed for reciprocating motion in the chamber, has an upper face including a concavity for receiving sufficient casting material, such as molten metal, to form the article and for carrying the casting material out of contact of the shot sleeve when the plunger is advanced upwardly in the chamber. At least one of said die halves further defines a convexity projecting into the chamber, the convexity being adapted to cooperatively mate with the concavity and displace the casting material therefrom, through the runner and into the die cavity when the plunger is advanced to the top of the chamber.

Abstract: A method of repairing large castings, such as ingot molds and mold stools, by employing an aluminothermic reduction reaction without using containment perimeters and without preheating the casting. The resultant repaired article has a metallurgically bonded plug in the hole or eroded surface with a thick abrasion-resistant slag covering over the deposited metal.

Abstract: A method of, and apparatus for, the continuous casting of molten metals, especially steel, wherein the molten metal is delivered through the agency of a multiplicity of pouring tubes having outlet or discharge openings inclined at a predetermined angle to the horizontal into the molten metal bath contained within a continuous casting mold. A deflecting wall or baffle means between the pouring tubes controls the flow of the molten metal in the mold.The method of continuously casting molten metal contemplates providing baffle means between a plurality of oppositely situated pouring tubes immersed in the molten metal bath of the continuous casting mold, feeding the molten metal through the pouring tubes in the form of casting jets entering the continuous casting mold through outlet openings of the pouring tubes, and directing the outflowing metal casting jets so as to impact against the baffle means in order to control the flow of metal in the continuous casting mold.

Abstract: The present invention provides a method for the production of modular graphite cast iron using a mould comprising a pouring bush, downsprue, gating and risering system, mould cavity and an intermediate chamber having a base and retaining walls positioned in the path of molten metal entering the mould and adapted to contain a nodularizing agent wherein the surface area of the base A = (l/k) (W.sub.T /T) (N.sub.nod /W.sub.T)where:l/k = constantW.sub.T /T = pouring rate of the metalN.sub.nod /W.sub.T = concentration of nodularizing agent in the molten metals.

Abstract: A method of making a more economical and reliable treating agent for use in late metal treatment when pouring metal castings. The treating agent is defined as an essentially homogeneous solid cast block preferably containing alloying ingredients to nodulize or inoculant ferrous metal. Each block is designed to present a generally uniform reaction surface to molten metal to be treated. This is obtained by casting the block to a shape which snugly fits a prepared basin in the mold gating system over which the molten metal to be treated must flow, or to cast the block in an annular configuration through which the molten metal must flow. The latter block has contoured inner surfaces which maintain a generally constant reactive surface as the block is consumed. These blocks are preferably prepared by simultaneously casting a large number in closely nested relation.