Abstract: A multiple injection mould for the manufacture of preforms for the manufacture of flasks by the blast or blow moulding method, the mould having a plate fixed on the nozzle side of the injection moulding machine on which outer moulds are mounted, a core-carrying plate and the fixed plate movable within the injection moulding apparatus machine and an intermediate plate which is movable relative to the core-carrying plate and on which are arranged pairs of mould end plates each having an internal contour by which the external contour of the socket of the neck of each flask is moulded. Driving means are provided for the intermediate plate by which it can be adjusted relative to the core-carrying plate during the opening movement of the latter.

Abstract: The invention relates to a mould for encapsulating parts of elements into a plastic material to manufacture electric components. The mould comprises a number of steel blocks or rods with accurately finished surfaces for clamping them completely tight together in a holder, whereby recesses in said blocks or rods are forming the mould cavity or mould cavities and the sprues. A layer of high hardness, such as a nitride layer, is deposited by means of vapor deposition in vacuum at a high temperature onto at least those surfaces of said blocks or rods determining the mould cavity or mould cavities and the sprues. Furthermore the blocks or rods are concerning their dimensions and/or flexibility and/or structure and/or finishing of the surfaces turned away from the mould cavity embodied such that deformations in the position in which said blocks or rods are clamped into said holder, caused by the depositioning of said layer, are eliminated.

Abstract: A multiple injection moulding apparatus for making parisons for blow molding bottles, the mould having a plate fixed on the nozzle side of the injection moulding machine on which outer moulds, each in a separate housing, are mounted with their faces against the plate. An independent pair of mould end plates is allotted to each outer mould with, in each case, a separate guide which extends at right angles to the direction of opening of the injection mould. In addition a common hydraulic drive to open and close the pairs of mould end plates is provided for a plurality of said pairs of mould end plates arranged adjacent each other.

Abstract: Apparatus for maintaining a diametric uniformity of wall thickness in a hollow molded plastic article by maintaining axial mold alignment over the period of use thereof. Guide blocks are mounted in circumferentially spaced relationship on one of the telescopic mold elements and pockets are provided with wear plates in the opposite element to receive the guide blocks axially therein and to provide a centering maintenance function which overrides the alignment function of other portions of the mold; e.g., tapered telescopic striking surfaces which are internal of the guide and wear block arrangements.

Abstract: A method of coating a surface of an article block includes utilizing a mold that has its interior surface electrolessly coated with a metal such as nickel where the mold is made from mild steel and further includes depositing a resinous composition in the coated metal mold and then inserting a surface of the article and then subsequently curing the composition by exposing the mold to heat; the exterior surface of the mold is oxidized and darkened to increase the capacity for the mold to absorb radiant heat; a method of preparing the mold is provided where the mold is electrolessly coated with the metal while the exterior surface thereof is masked to prevent the deposition of the coating metal on the exterior surface.

Abstract: A method for producing a weld-bonded nickel-base alloy coating on a cast iron part with minimum porosity at the weld interface is provided using a plasma transferred arc process in which the cast iron part is electrically coupled to the plasma-forming circuit, the flow of powder being directed into the plasma arc to the surface of the cast iron part. The method further resides in controlling the deposit of the nickel-base alloy during spraying to maintain a puddle of the alloy between the transfer arc plasma and the cast iron part substrate to protect it from overheating and burning from the transfer arc while promoting a welding reaction between the puddle and the cast iron substrate. The plasma spraying is continued progressively along the cast iron substrate to be coated while maintaining the alloy puddle between the plasma arc and the cast iron until completion of the coating thereof. The invention also relates to a composite article of manufacture.

Abstract: An ingot mold with mold wall and stool shields and the method of installing the mold wall and stool shields to the ingot mold and stoll. The mold wall shield comprises at least two portions connected by a bend. The mold wall shield and the stool shield can be multi-layered to provide a thin envelope or layer of air between the parallel layers. The shields are nailed to the mold or stool by an explosion actuated hammer. The mold wall shield is installed with the bend near the intersection between the mold and the stool. The shields are made of similar material to that being cast and melt due to the heat of the molten metal in the mold.

Abstract: An aluminum-diffusion coated steel pipe having an aluminum-coated layer on at least the inner surface of the steel pipe to be in contact with molten metal is used as a gating pipe system in a casting mold comprising a mold body and a gating system for pouring molten metal into the mold body. This aluminum-diffusion coated steel pipe can be further subjected to a secondary heat treatment in a high-temperature oxidizing atmosphere.

Abstract: A cake pan with a horizontal bottom and peripheral upstanding side walls temporarily receives one or more cake-shaping modular inserts while a cake is being baked, or otherwise fixed in shape. A matrix, or gridwork, delineated on the bottom of the receptacle is matched to the size and shape of the modular inserts and provides a guide for the proper positioning of the modular inserts in order to form the cake into selected alphanumeric configurations.

Abstract: Concrete elements and a lifting mechanism are secured against tilting at the time of form removal, and the formwork is fixed in place. In the apparatus, a forming unit, a concreting unit and a form removal unit are provided. The forming unit has a single rigid form adapted to shape the bottom and the sides of the elements or products, is open on top and is assembled for use as required. The form removal unit has means for maintaining the product and the removal unit itself in a fixed position against tilting, as well as means for maintaining the formwork in a fixed position, and means for actuating them.

Abstract: A fiberglass reinforced plastics steering wheel is disclosed and a mold and method for making same. The wheel is made by disposing binder and the fiberglass in an annular cavity and in ramp-like radial cavities of a mold and are pressed into shape by a wedge-shaped member.

Abstract: A coil having a slot portion intended to be arranged in slots in a stator or a rotor of an electrical machine is manufactured by forming a coil part including a bundle of electrically insulated conductors and insulation surrounding the bundle, arranging a portion of the coil part in a mould including at least two mould parts, surrounding the mould with a heat-shrinkable material which is penetrable by an impregnating resin, subjecting the thus composed product to pressing and heating in a tool which together with the mould gives the slot portion its final shape, the mould parts being spaced from each other to provide longitudinal gaps between their confronting longitudinal edges, and the heating of the product causing the heat-shrinkable material to shrink and retain the slot portion in its final shape after removal of the composite product from the tool, thereafter impregnating the insulation with an impregnating resin and transforming the insulation into a solid state.

Abstract: A proofer tray assembly with a circular cup having a stepped configuration providing a series of substantially horizontal annular surfaces forming ledges for retaining a dough release agent such as sifted flour or sprayed oil.

Abstract: A compression mold includes punch and cavity components fabricated from initially flat sheets of relatively thin metal. The sheets of each component are shaped, assembled and joined to provide box-like components defining mating mold surfaces yielding molded parts which may be straight or laterally and/or vertically curved. The hollow interior of the two components allows for the circulation therethrough of an appropriate heat transfer medium to permit molding of either thermosetting or thermoplastic compounds.

Abstract: Thermally collapsible core of three to five solid carbonaceous segments of generally equal volume and of wedge-like shape arranged around a collapse axis of the core in narrowly spaced apart relation to each other. Core includes spacers occupying a minor portion of the narrow spacing nearest the external periphery of the core and which are made of metal, glass, ceramic or mixtures thereof having a melting point below the highest temperature to which the core is subjected by molten material solidifying therearound, e.g. fusion-cast refractory. The segments are the larger parts of the core. Heat transferred from solidified molten material to core causes spacers to melt and allow segments to collapse inwardly toward collapse axis to accommodate cooling shrinkage of casting without cracking. Melted spacers can drain downwardly out of core. Design yields highly quenched microstructure in fusion-cast refractory, which is especially beneficial in tap hole blocks for steelmaking furnaces and vessels.

Abstract: A multi-part form for casting concrete structural units having spaced parallel and vertical sidewalls and horizontally spaced parallel and lateral connecting arms therebetween, the connecting arms having mortises at the bottom and tendons at the top. A stationary base and support means has upwardly exposed surfaces for forming the bottoms of the sidewalls and the arms and a core means thereon forms inner vertical surfaces of the arms and portions of inner vertical surfaces of the sidewalls of the structural unit. Opposing movable sidewall form members form outer surfaces of the sidewalls and opposed movable arm and sidewall form members form outer surfaces of the arms and inner surfaces of the sidewalls outwardly of the arms. Sidewall end surface form members on the sidewall form members form the end surfaces of the arms. Tie and strip bolts respectively secure the movable form members in inner assembled positions and urge the members outwardly in a stripping operation after casting.

Abstract: A mold for embedding a tubular member within a casing wherein the mold compensates for variations in length of the tubular member. The mold is a two-member structure wherein one of the members is provided with a cavity for receiving the tubular member and the casing. The cavity is closed at one end by a movable ring insert which moves relative to the assembled relationship of the tubular member within the casing to compensate for any length variations.

Abstract: A mould for producing concrete mouldings having a frame and a plurality of moulding boxes therein with the moulding boxes removably fastened directly to the bottom end faces of the frame.

Abstract: This relates to a manifold construction for multi-cavity molds. The manifold is joined to a primary sprue by a transverse supply tube which is transversely telescoped relative to an associated manifold so as to permit relative transverse movement between the supply tube and the manifold. The manifold also carries longitudinally extending delivery tubes each of which is mounted for relative longitudinal movement between the manifold and an associated cavity. The manifold is generally positioned between the supply tube and the delivery tube which permits floating of the manifold relative to the various cavities of the mold and the primary sprue.

Abstract: A laminated plate assembly (17) for protecting the mold stool (11) or bottom (125) of an ingot mold (10 or 100) during the pouring of molten metal therein, the assembly comprising spaced-apart plates (20, 21 and 22) secured together by embossments (24) or the like.

Abstract: A method of repairing an ingot mould for a steelworks which forms cracks, the method comprising applying a patch plate at both sides of the crack, a series of patch plates being provided in succession in the direction of the length of the crack, reinforcement strips curved to match the curvature of the mould wall being provided on the patch plates and being adjusted to positions transversely of the length of the crack and then fixed on the plates.

Abstract: An article of manufacture and process is described which is useful in making ice cream shapes attractive for consumption. Use of these articles permits rapid fabrication of various ice cream products without contamination and permits rapid and effective cleaning of such articles.

Abstract: An insulated metal mold having a molding surface defining the cavity of a mold for molding thermoplastic resin. To regulate the cooling speed of the molten resin to be injected or placed into the cavity, the molding surface is provided by a thin metal layer and a layer of heat insulating material is formed on the inner side of the metal layer.

Abstract: An apparatus is disclosed for forming an integrated truss structure wherein the apparatus includes a plurality of male mold members each having a plurality of open grooves formed therein which slope away from the top surface thereof. A plurality of female mold members each have a generally circular recessed cavity with a plurality of open grooves which are orthogonally disposed with regard to one another and which slope away from the plane of the recessed cavity. The male and female members are positioned opposite one another with the grooves in the male and female members being aligned to define strut beam chambers and wherein the top of the male member is aligned with the recessed cavity of the female member to define a junction chamber. Thus, the strut beam chambers slope away from the junction chamber. One of the male members is positioned adjacent each female member, and vice versa, to thereby define alternate symmetrical upper and lower junction chambers interconnected by the strut chambers.

Abstract: A reusable gasket for use in and in combination with a molding apparatus for casting articles of acrylic monomer plastic or the like. The gasket comprises a mold and casting release surface for contact with a cast plastic article and the two mold surfaces and includes a core of elastomeric material completely, but loosely encased in a tube impervious to passage therethrough by the material of the core and the material of the plastic article to be cast. The impervious tube may be of polytetrafluoroethylene, polyamide, polyethylene, or like material. The mold and casting release surface is preferably silver. A plurality of gasket members are placed in end-to-end relationship between a pair of plate members in a molding apparatus to define a casting cavity. A plug in the form of a wedge may be used to close a gap between adjacent ends of two gasket members through which casting material may be flowed into the cavity prior to closing the gap.

Abstract: A container for hot consolidating powder of metallic and non-metallic composition and combinations thereof by the application of heat and pressure wherein the container includes a mass of container material which is substantially fully dense and incompressible and is capable of plastic flow at pressing temperatures, a cavity of a predetermined shape formed within the mass for receiving a quantity of powder, the mass including walls around the cavity of sufficient thickness so that the exterior surface thereof does not closely follow the contour of the cavity whereby, upon the application of heat and pressure to the container, the mass acts like a fluid to apply hydrostatic pressure to the powder contained in the cavity.

Abstract: A mold for manufacturing silicone contact lenses is provided. The mold comprises a male section and a female section plated with chromium or nickel which when joined together come into contact with each other only at a portion at which the mold surface of one section becomes continuous with that of the other section to define a cavity therebetween. The contact between both sections is not in a flat-to-flat fashion but in a line or edge-to-edge fashion so that a contact lens whose surface and edge are completely freed from flashes or irregularities can be obtained. Further, with the use of chromium or nickel plated mold of the present invention, a contact lens of excellent quality can be obtained from a silicone resin which is affinitive to chromium and nickel.

Abstract: Thermometer probe covers having an extremely thin wall integral tip for enhanced heat transfer are injection molded by unique mold core construction and venting configuration. A tungsten carbide core minimizes core deflection to maintain improved concentricity of core and cavity. Maintainance of concentricity in quantity production apparatus is improved by a combination of relatively loose cantilevered mounting of an end of the core together with a press fit locking of the core upon closing of the mold. Venting of cavity gas during injection of mold material is precisely controlled through symmetrically distributed vent orifices in both the core and the female mold part. Core venting is controlled by a plurality of orifices and a manifold provided by a water cooled core vent pin within a bore of the core.

Abstract: A sturdy optical mold for reproducing optical curved surfaces in the shape corresponding to that of an optical prototype comprising a resin layer formed on a base and a metallic layer formed on said resin layer, and a method for manufacturing an optical mold for reproducing optical curved surfaces in the shape corresponding to that of an optical prototype comprising forming layers of different metals on the surface of an optical prototype, dissolving one of said layers for releasing the other layer and fixing said released layer onto a base with a bonding agent.

Abstract: A tapered mould consisting essentially of a rigid outer frame formed of a set of radially arranged longitudinally extending guide members and a set of axially spaced encircling rings, and a gapped frustoconical tubular casing of resilient sheet material having a set of longitudinal stiffening members arranged thereon for sliding engagement with the respective guide members. The gap in the wall of the tubular casing, extending along a longitudinal line on the periphery of the casing, is opened and closed automatically as the tubular casing inserted in the outer frame is moved axially in opposite directions. Labor - consuming bolt - clamping and releasing operation is completely eliminated and the mould operation can be mechanized with ease, as desired. Packing means interposed between a pair of stiffening members arranged on the opposite sides of the gap further ensures leak - proof gap closing.

Abstract: An alloy for fabricating plastic molds consisting essentially of between about 0.4 and 2.0 weight percent beryllium, between about 29.0 and 33.0 weight percent nickel, between about 0.4 and 1.0 weight percent iron, between about 0.4 and 1.0 weight percent manganese, between about 0.05 and 0.3 weight percent zirconium, between about 0.05 to 0.30 weight percent titanium, and the balance copper. Plastic injection molds fabricated from said alloy are able to withstand the corrosive conditions present when fire retardant plastics are formed and are able to reproduce pattern detail completely and accurately.

Abstract: An apparatus is disclosed for forming plaques or castings of impressions of various articles. The disclosed apparatus includes a reusable impression frame and a molding frame to retain the mold composition as it hardens while in contact with the impression retaining means.

Abstract: Materials for tamping battery mix, composed of an intermetallic compound of CoTi or Co-Ti binary alloy having a composition near the intermetallic compound or composed of the intermetallic compound in which part of the constituents are replaced by other elements and having excellent wear resistance and burning resistance as well as corrosion resistance against the battery mix.

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 mold for the continuous casting of metals, in which at least its inner part is made of a refractory material chosen from the group of materials comprising tantalum, niobium, tantalum-base alloys and niobium-base alloys.

Abstract: A mold for continuous casting made of a copper alloy having been subjected to 15 to 40% cold working, said alloy consisting of copper as main constituent and an addition of 0.18 to 0.85% by weight of tin, and, if desired, several other metal components, the alloy having a high softening temperature and high-temperature strength, whose numerical values are given by specific formulas in which the thermal conductivity .lambda. is a determining factor which, in itself, is dependent on the construction of the mold, operating conditions etc.

Abstract: This invention is directed to the use of tungsten base alloys containing about 1 to 12 weight percent nickel, about 0.5 to 8 weight percent iron and about 0.5 to about 25 percent molybdenum and at least one additional additive selected from cobalt, chromium, manganese, vanadium, tantalum, zirconium, titanium, yttrium, rhenium, boron, and silicon. Chromium may substitute for molybdenum up to 15%. In addition to being useful for high density applications, structural applications, and high temperature applications, the alloys may be used for die casting dies, molds, cores and other metal shaping members.

Abstract: A die segment for a briquetting roll in which the roll is a steel body which is provided with a peripheral groove having a radially outwardly facing bottom wall which is made up of planar chordal segments and having side walls at the side edges of the bottom wall with one side wall inclined inwardly in the outward direction and being in the form of an annular segment of a cone concentric with the axis of the roll and the other side wall substantially radial. The die segments are bodies of hard wear resistant material mounted in the groove, one on each chordal section of the bottom wall of the groove and each has one side inclined to fit the inclined wall of the groove with the other side spaced from and diverging from the radial side wall in the outward direction. Wedge bars between the radial side wall of the groove and the opposed sides of the die segments are utilized for clamping the segments in place in the roll.

Abstract: Molybdenum alloys containing at least two metallic element components which form a molten alloy which dissolves appreciable Mo during liquid phase sintering may contain additives selected from Co, Mn, Cr, Ru, Zr, Ti, Hf, Re, refractory metals, and metalloids to obtain desired properties for certain applications. Many of these additives are particularly effective in shaping members.

Abstract: A .[.container.]. .Iadd.method .Iaddend.for hot consolidating powder of metallic and non-metallic composition and combinations thereof by the application of heat and pressure .[.wherein the.]. .Iadd.to a thick-walled and regularly shaped .Iaddend.container .[.includes.]. .Iadd.having .Iaddend.a mass of container material which is substantially fully dense and incompressible and is capable of plastic flow at .[.pressing.]. .Iadd.conventinal compaction .Iaddend.temperatures, a cavity of .[.a predetermined.]. .Iadd.an irregular .Iaddend.shape formed within the mass for receiving a quantity of powder, the mass including walls around the cavity of sufficient thickness so that the exterior surface thereof does not closely follow the contour of the cavity whereby, upon the application of heat and pressure to the container, the mass acts like a fluid to apply hydrostatic pressure to the powder contained in the cavity.