Abstract: A transfer film comprising a base film and a releasant layer, an ink layer and an adhesive layer laminated on the base film in this order is inserted into a cavity of an injection mold, and injection molding material is injected into the cavity. After the molded article is removed from the mold, the base film is peeled off and the ink layer is transferred to the surface of the molded article. The injection mold has a coring pin for forming an opening in the molded article and the contact surface of the coring pin to be brought into contact with the adhesive layer of the transfer film has poor adhesion to the adhesive layer so that the bond strength between the contact surface of the coring pin and the adhesive layer is lower than those between the ink layer and the releasant layer and between the releasant layer and the base film.

Abstract: Novel forms for use in preparing artificial nails, comprise a flexible liquid-impermeable sheet material having a leading end, a trailing end and opposed lateral edges and having a well extending from the trailing end toward the leading end intermediate the lateral edges of the leading end, said well being adapted to receive a liquid artificial nail coating composition.

Abstract: A shrinkable foam mandrel that can be easily removed and composite resin transfer molding process that uses the foam mandrel. The foam is dimensionally stable at a first temperature that typically corresponds to the cure temperature of the composite resin. The foam is capable of irreversibly shrinking to less than about 0.5 said foam's original size at a second tempertaure that is above said first tempertaure. The foam is encapsulated by a non-stick elastomer skin and covered with fibers. The fiber covered elastomer encapsulated foam is disposed in a female mold cavity and resin is injected into the female mold cavity. The resin and fibers are cured and the resulting composite component is removed from the female mold. The temperature is raised to the second temperature and the elastomer encapsulated foam male mandrel irreversibly shrink to less than about 0.5 its original size. Finally the shrunken male mandrel is removed from said composite component.

Abstract: Apparatus for the manufacture of insulating building elements including at least one inner insulating panel and two outer spaced apart concrete slabs having well trimmed outer surfaces, and reinforcements to space apart the two slabs thus forming a continuous cavity. The apparatus rests on a working plane and includes a pair of opposed side boards and two vertically spaced rectangular frames supported by said side boards in superimposed parallel relationship. Connecting devices extend between the frames for positioning each one of the frames in adjustably spaced apart relationship at the level of each concrete slab, and define therebetween an opening through which reinforcements can be introduced or removed.

Abstract: Liquid curable resins, such as unsaturated polyester resins, unsaturated epoxy resins, polymethyl methacrylates, are cured in a mold, the casting surface of which, is made of a vinyl alcohol-olefin copolymer to produce a shaped resinous article with an improved and even surface gloss.

Abstract: In order to facilitate the release of polyurethane from a steel or aluminium mould, the metal surface is provided with a mono-layer of an alkylmercaptan. A silver layer may be provided between the mould metal and the alkylmercaptan monolayer.The invention can be advantageously used for manufacturing a luminaire for a tubular discharge lamp.

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: An inexpensive, cellular plastic mold and method of preparation, wherein the plastic mold comprises male and female mold elements which define a mold cavity therebetween, each of the elements comprising a rigid thermoplastic foam or cellular board material having a smooth, integral, solid layer of a plastic material forming the facing surface of the mold cavity and a relatively thick, solid, supporting layer of a plastic material forming the back surface of the mold elements.

Abstract: A matrix having a surface of silica glass which is suitable for the manufacture of articles of synthetic resin in which the surface of the matrix comprises a monolayer of an aliphatic alcohol, as well as a method of manufacturing articles having a surface of synthetic resin while using the matrix.

Abstract: A device for construction of removable dental dies fabricated from type IV dental die stone poured into non-rigid impression materials. The device eliminates the need for a two pour system necessitated when individual pins are used, provides large surface area for positive seating of the individual dies, and in general eliminates the complicated alignment problems associated with other systems in common use. The invention comprises a polymer sheet having projections on both sides for embedment in dental store of the date of the die and base.

Abstract: Proposed is a distance sheeting for construction of molds and models; the sheeting is produced by curing of 100 parts by weight of a mixture consisting of 45-60 parts by weight of an internally plasticized epoxy resin of low epoxide value, 5-10 parts by weight of an external plasticizer and 35-45 parts by weight of a globular-amorphous filler material with 9-13 parts by weight of polyamine curing agent. This distance sheeting is especially suitable as a substitute for the sheetings made of lead or wax which are being used currently for this purpose.

Abstract: A mold release agent designed for use with ceramic/polyester molding compositions is disclosed. The mold release agent comprises 15-30 weight percent polyethylene having a molecular weight of 15,000 to 30,000 and 70-85 weight percent of a mineral oil of 345-355 Saybolt Seconds Universal (SSU) at 100.degree. F. In a preferred molding procedure the surface of the mold is uniformly coated to a thickness of 0.5-2 mm with the mineral oil/polyethylene composition by melt-flow at 200.degree.-300.degree. F.

Abstract: Mold for cakes having an annular side wall and a plurality of concentric inner annular dividing walls with heights which are approximately half the height of the side wall, which are tapered upwardly, and which are coated with polytetrafluoroethylene (Teflon).

Abstract: A cooking and cutting kitchen implement apparatus has a hollow cylindrical ring member having one edge thereof formed into an angular cutting edge for cutting circular shapes, and a flat edge on the other edge thereof adapted to be placed on a grill for cooking an egg, or the like, therein. The ring member has a handle attached thereto with a spring clip connected into a pair of openings in the exterior of the ring and positioned so that the handle will be supported on the edge of the ring member to keep the handle off the grill when used for cooking. The handle may also be used on opposite side after turning the ring over. The ring may be lined with a solid lubricant polymer to prevent an egg, or the item therein, from sticking to the inside of the ring and the flat edge of the ring may have an annular groove therein.

Abstract: A dispersion composition and a method for coating the surface of steel casting dies for molten metals are described. The dispersion composition comprises boron nitride powder dispersed in a peroxide-modified aqueous dispersion of a water-dispersible film-forming polymer. The coating composition provides thermal insulation to the mold surface, thereby minimizing premature solidification of the cast metal.

Abstract: A composition and method for coating the surface of steel casting dies for molten metals are described. The composition comprises a dispersion of boron nitride powder, an elastomeric polymer and an organic solvent or diluent. The elastomeric polymer consists of two fractions, a high-polymer fraction and a low-polymer fraction. The treatment provides thermal insulation to the mold surface, thereby minimizing premature solidification of the cast metal.

Abstract: A copper mold release material comprising titanium dioxide slurried in a liquid medium. The titanium dioxide is easily removed from a casting, if any adhers thereto, by washing with, for example, water and does not contaminate electrolytes utilized in electrolytic refining processes.

Abstract: Silica- or alumina-containing granules are loaded into a mold of which the inner walls at least are formed of a nonbonding material constituted of ferrochromite, magnesiochromite, calciochromite, or trivalent-chromium oxide. The mass is then heated to a temperature above the softening point of the granules so as to fuse them together and thereafter the heated mass is hardened. As the mass can inherently not bond to the lining of the mold subsequent separation is relatively easy.

Abstract: A method of releasing molded articles from a mold by coating the mold with zero grain soft water prior to insertion of the material to be molded into the mold, zero grain soft water meaning the substantially total absence of divalent ions, such as calcium or magnesium, in the water.

Abstract: A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mandrel and a layer of metal is deposited over the mandrel and insulators to form a composite unitary structure, including the electrodes. The deposited metal overlying the insulators is then removed, electrically isolating the electrodes.

Abstract: Casting apparatus for use in making intermediate molds for the preparation of tool electrodes comprises a pallette for holding the casting and adjusting devices for ensuring parallelity and correct alignment for the mouldingfaces. There is also vibrator to ensure improved consolidation of the casting material and to provide for degassing.

Abstract: A paperboard tube for use in forming concrete columns is split longitudinally into two parts, with each part initially having its cut edges threated with a urethane resin, with each part then being dipped into a solution of an acrylic resin, and finally each part then having its interior surfaces coated with a urethane resin, each part is then assembled into a composite tube, and when used, having a reinforcing member arranged along the length of its longitudinal slits, for reinforcement of the tube edges, and finally a strap(s) or clamp(s) is arranged therearound so as to secure the tube into position for use in the pouring of concrete columns.

Abstract: A dough frame comprising in combination a discoid bottom plate; a first member removable thin sheet of plastic material sufficient in size to be mounted smoothly over and folded under said discoid plate; an annular rim element, having a rim height greater than the thickness of said discoid plate, the latter covered by said first member plastic sheet, and said rim element having a diameter adjusting means and supporting means cooperates with the said discoid plate covered with said first member plastic sheet to form a cavity or mold for accepting a pie dough mixture; a second member thin sheet of plastic material sufficient in size to enclose said dough within said cavity and to provide an interface between the said dough and a rolling pin and between the upper edges of the said rim element surrounding the said dough and a rolling pin.

Abstract: A method and arrangement for lining articles are disclosed which are particularly well-suited for use in lining melting ovens. The arrangement includes a mold member which is composed of several relatively movable sections so as to permit the dimensions thereof to be changed. For the lining of an oven chamber, the mold member has an external surface the configuration of which corresponds to the inner wall of the oven chamber. This surface is coated with a refractory-containing composition, which is releasably secured over the surface. In coating the mold member the composition is made up in a flowable or plastic state, applied over the external surface of the mold member in this state, and then hardened, for instance, by heating. The composition is of such a nature that the temperatures required for hardening the same are sufficiently low to avoid undesirable effects on the mold member.

Abstract: The terminal portion of a winding end turn conductor which projects from the core member of a dynamoelectric machine is encapsulated in an epoxy potting compound by means of a casting assembly which comprises a detachable conformable pad, a plastic sleeve mold, and a portable vise. The conformable pad is fitted about the terminal portion of the conductor to provide a temporary barrier to axial flow of the epoxy compound during casting. The plastic sleeve is disposed around the terminal portion in a spaced relationship therewith and in an abutting relation with the pad to provide a barrier to the radial flow of the epoxy compound during casting. Clamping means such as a portable vise is fitted about the conformable pad and is tightened to establish a compressive union at the interface of the conformable pad and the terminal portion of the conductor to prevent leakage. A pair of spring members hold the sleeve in abutting engagement with the surface of the conformable pad during the casting process.

Abstract: An upright mold for forming planar, thin, flexible, elastomeric liners for large modular concrete forms, to produce surface textured concrete walls and the like, includes a positive master of a flexible elastomeric material, secured to a planar, rigid backing, having normal extending, integral gasketing flanges on three sides, a modular form member having a planar surface mounted in the extending flanges, and means for temporarily securing said modular form member in sealing relation to said flanges and with its planar surface spaced a predetermined distance from the master. Liquid polyurethane precursor is poured into the mold form top side permitting trapped air in the liquid to travel to the surface of the modular form member and upwardly out the top of the mold. A small reservoir of the liquid may be maintained at the top of the mold to insure positive pressure of liquid into the mold for the complete filling of the spaces of the mold with the liquid precursor.

Abstract: A lightweight, very strong form of a concrete beam includes a plurality of U-shaped brace members having vertical, lightweight steel deck sheets secured to the uprights thereof, a strippable, non-stick, plastic liner for contacting the concrete of the beam and a rigid foamed plastic filling the space between the liner and the steel sheets, so that it supports the weight of the concrete poured onto the strippable, plastic liner. A column form is arranged to mate with the beam form, and the beam form may be used to mate with flying deck forms producing an integral, combined column, beam and deck structure. The forms are arranged for easily joining short beam sections to make long beam forms, and to join columns and floor decks with a smooth joint requiring no finishing. The strength of the beam forms reduces the quantity of supports necessary to hold the weight of the forms and poured concrete, and their configuration provides easy and quick stripping of the forms from the set concrete.

Abstract: A flexible annular core for the production of hollow toroidal rubber shells, particularly pneumatic tires, composed of a pair of bead portions, each of which is composed of beads, a reinforcing layer folded back so as to enclose the beads, and elastomer layers covering the reinforcing layer, and a flexible shell portion composed of the reinforcing layer covered with the elastomer layers and extending across the bead portions. The bead portion of said flexible annular core is composed of the reinforcing layer and the elastomer layer adhered with each other. The flexible shell portion of said core is composed of the reinforcing layer and the elastomer layer not adhered with each other.