Abstract: A belt-fabrication apparatus for producing belts from layers of vulcanizable material and steel-wire reinforcement includes a coil frame from which the reinforcement wire may be withdrawn, passed through a wire clamp, covered with vulcanizable layers, subjected to pressing in a vulcanizing press, and engaged by a traction and/or clamp device downstream of the press as part of the belt, the latter being taken up on a coil. According to the invention, slack is prevented from forming (or is taken up) in the wire by providing each of the supply coils with a drive sprocket and a slip clutch between this sprocket and the reel, a plurality of such sprockets being engaged by a common chain driven by a motor tending to rotate the reels in senses opposite to the direction of rotation of the reels for paying out the wire.

Abstract: A polygonally shaped, multifaceted rotary scanner comprising a plurality of optically flat, reflective surfaces on the facets. The reflective surfaces are integrally bonded to a multifaceted, polygonal base at precise angles to the axis of rotation by a replication technique in which each optically flat reflective surface is produced on the surface of a flat master preform, and the flat master preform is then accurately located in position at the precise angle relative to the base by contact with upper and lower facets of a master multifaceted polygonal fixture. The flat reflective surface is then adhesively bonded to the corresponding facet of the polygonal base (while the polygonal base is arranged concentrically between the upper and lower facets of the fixture) by the application of a small quantity of a liquid adhesive to the surface of the facet of the polygonal base. On hardening, the adhesive bonds the reflective layer of each master preform to the appropriate facet of the polygonal base.

Abstract: A packaging device for sealingly closing an upper foil and a lower foil utilizing a framelike constructed welding device which has a separate drive for welding together the lower and the upper foil, of which at least the lower foil is formed into containerlike segments and is moved, held by a chain at the sides thereof, through the packaging device. The packaging device has an evacuating chamber which is formed of two boxlike halves, of which one half is stationary and the other half is vertically movable. One of the halves has a framelike welding device embodied therein.

Abstract: A method of manufacturing a thin-walled article of synthetic resin, in particular a large-sized article, while using an inner and an outer template, the synthetic resin being supplied via one or more apertures in one of the two template portions and whereby a partial vacuum is maintained via one or more air discharge apertures downstream of the synthetic resin front.

Abstract: The invention provides a method and apparatus for injection-molding at least a first part of a plastics manifold element onto an extruded, panel-forming plurality of juxtaposed, hollow elements, comprising the steps of introducing into one set of ends of the hollow elements protrusions which extend from a core defining the shape of at least part of the interior space of the final manifold to be formed; clamping the region of the set of ends accommodating the protrusions between first and second mold members which, together with the core delimit the cavity of at least part of the final manifold; injecting plastic material into the cavity; and removing the core, and the mold members, whereby a strong bond is formed between the hollow elements and the manifold.

Abstract: The mold according to the invention is in two opening parts. Its first part defining the lower sole face and presenting spiked holes, delimits receiving recesses shaped to complement the molded heads of the spikes and adapted to receive the corresponding heads while ensuring a perfect contact capable of preventing any of the molding material from filtering in, whereas the second part of the mold, defining the upper sole face and provided with bosses projecting opposite the said holes, comprises push-rods on the bosses conjugated with the recesses, to hold the corresponding heads in position inside the latter when the mold is closed.

Abstract: Encapsulation of electrical circuitry by high pressure injection molding of an insulative thermoplastic material about electrical components supported in a pre-formed carrier which is itself supported in an outer mold. The carrier has an internal configuration of lands and grooves which facilitates circuit insertion, the walls of which carrier are yieldable to flex inwardly to permit registration of the carrier walls with the outer mold and to securely hold the circuit during the injection process during which both the mold and the carrier are filled. The carrier is vented to insure complete encapsulation throughout the circuitry therein.

Abstract: A process for moulding a food product consisting of a plastic mass, such as ice cream, and firm elements, such as biscuits. A multiple-cavity mould open downwards is placed on a fixed platform, a base is arranged in the mould on a vertically displaceable support, the biscuits are arranged between the base and the cavities and the mould is fitted with ice cream while the base is lowered.

Abstract: Molding apparatus for laminated foam-body panels, comprising first and second walls defining a molding cavity therebetween, the first wall including means for heating the foam during molding and the second wall comprising hingeably mounted access doors, adjustable holding and shaping means for said panels, disposed within the cavity and at least two of which are perpendicularly adjacent, means for simultaneously positioning each of the holding and shaping means, first and second movable locking means for the holding and extrusion means and for the access doors respectively, the first locking means being automatically actuated in response to the positioning means, means for simultaneously actuating and disengaging the first and second locking means, and means for filling the cavity with unmolded foam material.

Abstract: A method and apparatus for producing fishing lures incorporating hook hangers which utilize a bore formed in the lure body as part of the connection mechanism. Injection molding techniques are utilized to fill cavity molds having removable inserts therein.

Abstract: A multifaceted mirror 10 is formed of individual plane mirrors 15 bonded to a support element or core 11 by a cement 14 in positions that are accurately located independently of the core. A base 30 has faces 31 accurately in the plane of the mirror faces, and locator blocks 40 having plane reference surfaces are secured to faces 31 to provide supports for accurately locating mirrors 15. The core 11 is placed inside a positioned array of mirrors 15, and the gaps between the mirrors and the core are filled with a cement such as epoxy. Trim strips 20 can be added to extend between and over the edges of the mirrors.

Abstract: In the invention, an apparatus is designed for producing spacer frames for insulating glass window structures, made up of lengths of hollow molding joined together by male cornerpieces. Hollows and spaces at the corner joins are sealed or filled by injection of a sealing composition forced in by the use of a female injection head designed to take up a frame corner, and a driver for pushing the frame corner structure into the injection head. There is furthermore a work table for the frame parts in the working position on injection of the compound or sealant, and gripper structures for keeping the hollow molding lengths, forming the corner, in the desired position. At least one of the gripper structures is able to be moved towards the put-in male part of the cornerpiece after the hollow molding part has been gripped.

Abstract: A ski which has a sandwich structure including upper and lower plastic laminations and a foamed plastic core situated therebetween with dense side portions integral with the upper and lower laminations and forming a shell surrounding the foamed core has in its new finished condition the same condition as when the ski is removed from a mold, so that finishing operations are not required subsequent to removal of the ski from the mold. The mold which is used to manufacture the ski has opposed relatively wide walls and a pair of opposed relatively narrow walls which are permanently fixed to one of the relatively wide walls while the other of the relatively wide walls is movable to and from an operating position closing the mold and cooperating with the relatively narrow walls for this purpose.

Abstract: The leg portions of a continuous molded coupling element are bonded together to reinforce the attachment of connecting threads embedded in the leg portions, and a longitudinal cord is laid in grooves formed in heels of the leg portions to improve the stability of the coupling elements.

Abstract: A mold having a vee-shaped groove receives an optical fiber end in butted relationship with either another fiber end or with a mold wall surface which is perpendicular to the vee-shaped groove. Field forces are generated which urge unattached and disposable fiber seating elements into the groove, the seating elements in turn pushing the optical fiber end(s) into the groove until the side surface of the optical fiber end(s) are in tangential contact with both sides of the vee-shaped groove. While the optical fiber end(s) are so positioned, casting liquid is introduced into the vee-shaped groove. The seating elements remain within the casting.

Abstract: A flexible insert arrangement for an electrical connector mold for supporting leads extending therefrom and closing the mold end is disclosed and includes a flat resilient body having one or more lead-accepting depressions normal to the body across one edge thereof and an arrangement actuable as the mold halves are closed on one another for deforming the body to temporarily displace the body resilient material about each electrical lead extending from the mold to complete the formation of an insulating material-accepting connector forming cavity.

Abstract: Apparatus for splicing ends of a sheave insert material in which the ends of a premeasured length of an elastic, thermoset sheave insert material are laminated together in a special splicing jig for fabricating a unitized insert loop, which is subsequently stretched around a sheave into a preformed insert receiving slot along the circumference thereof. The jig holds the ends of the premeasured length of insert material in alignment as a heated mold, included therein, fits snugly around the ends and applies heat to the joint therebetween, into which the insert material, in liquid form, has been inserted to join the ends. The heat thus applied to the joint accelerates the curing of the liquid into the same consistency as the insert; thereby producing a unitized bond between the ends by which the unitized loop is thus formed.

Abstract: A form tool for the production of a hose piece from an injectable material with wire-, rope- or cable-, or thread- shaped reinforcement inserts made of metal, textile or the like, the reinforcement inserts extending in the circumferential direction of the hose piece, comprising a mould sleeve and a mould core, which form an annular cylindrical hollow mould space therebetween, whereby on the periphery of the mould core, extending in the axial direction of the latter, supporting ribs for distancing of the reinforcement inserts are arranged spaced from the periphery of the mould core, and whereby the supporting ribs have recesses in which there engage the reinforcement inserts which are wound on the supporting ribs.

Abstract: A novel mold having a plurality of channels for casting battery straps and posts on groups of battery positive and negative plates, the mold being equipped with a projection on at least one end of each of the channels, the projections extending into the channels of the mold toward the opposite end of the channel. The lengths of the mold channels are slightly less than the lengths of rows of positive or negative lugs so that the elements of the battery group are gently compressed or squeezed together. The end walls of the mold channels extend beyond the main mold body, a portion of the extended walls being beveled in a direction away from the mold channels.

Abstract: The invention is concerned with an injection mold for making a plastic impedance measurement module having a generally flat metal grid imbedded in the plastic thereof with a plurality of pairs of electrodes upstanding generally perpendicularly from said grid, one pair into each of a plurality of chambers, said electrodes being uncoated by said plastic. The mold comprises a first mold half having a first generally flat recessed portion defining top surface of a base of the module and a plurality of channels extending from the first portion into the first mold half defining the plurality of chambers and including a plurality of pairs of spaced apart slots extending from the base into the first mold half, one of the pairs of slots extending into each of the chambers for accepting and preventing coating of the electrodes.

Abstract: A plurality of spaced fastener elements are molded onto parallel filaments. A pair of leg portions of each fastening element have, respectively, a projection and an opening, the projection and opening mating to interlock the leg portions. The fastening elements are formed by directing the parallel filaments to a cavity wheel which has mold cavities enclosed by a band, and then injecting plastic material through gas openings in the band into the mold cavities to form a train of fastener elements on the parallel filaments.

Abstract: Nozzle apparatus for hermetically sealing the edges of multi-pane window units capable of performing such sealing even though the edges of the panes are misaligned. A thermoplastic sealing compound is introduced into the spacing at the edges of substantially aligned panes, and spring biased sealant containment plates disposed on opposite sides of the nozzle, each engaging a pane edge, confines the sealing material, and a blade associated with each containment plate trims the material with respect to each pane resulting in a clean joint from which excess sealing material has been trimmed, and the position of the trimming blades is automatically oriented to the pane edges.

Abstract: A plate strap is die-cast integrally with an upstanding conducting member, which may be either a terminal post or a riser to form part of an intercell connector, by means of a mold having a cavity affording an elongated plate strap position which is closed at the top and has slots in the floor through which the plate lugs project, and a chimney position upstanding from the plate strap position to form the upstanding conducting member. The part of the floor between the plate lugs is formed by cylindrical dowels each having a diameter substantially equal to the spacing between adjacent lugs. The dowels are retracted to permit removal of the mold from the plate strap or straps. A single mold may form a row of plate straps associated with a number of intercell connectors and a pair of terminal posts.

Abstract: Impellers for ventilators are manufactured from fibre-reinforced synthetic plastics material by forming a flat base disc of resin impregnated fibres on a suitable support and forming notches around the periphery of the base disc. The portions of the batt adjacent the notches are bent upwardly or downwardly over suitable supports on which are laid further pieces of resin impregnated fibre to form the impeller blades. A cover plate, also of resin impregnated fibres can be applied to the free edges of the impeller blades to complete the impeller.One moulding apparatus for carrying out the method has a notched flat plate with supporting walls extending downwardly from the plate adjacent the notches. The base disc of the impeller is laid on the flat plate and the supporting walls serve as supports for the blades. Another moulding apparatus for carrying out the method comprises a hollow mould and inwardly extending supporting walls.

Abstract: Apparatus for making a frusto-conical container from a blank having a base panel and side panels which are folded relative to the base, clamped between tools of an injection moulding machine and seamed by injected material fed along one face of the blank, the other faces of the side panels spanning a circumferential channel into which they are forced by injected material to form a circumferential bead, at the axial seams the channel being reduced in depth to support the side panels against displacement of the edges by injected material such as will allow injected material to reach that face of the blank nearest the channel.

Abstract: A method for making an improved injection molded ski having excellent mechanical properties comprising an injection molded ski body made of thermoplastic resin provided with a pair of edge receiving portions on the bottom surface thereof, a pair of steel edges attached to the edge receiving portions and a sole plate integrally formed by the injection molding process of thermoplastic resin on the bottom surface of the ski body.

Abstract: A process and machine are described for the continuous production of reinforced concrete blocks in which a reinforcement member is cut and formed, positioned in an area of a molding station, a divided mold cavity is then defined about the reinforcement member and a paired block formed about the reinforcement member by introduction into the molding cavity of a hot slurry of cement fluid. The paired block thus formed is advanced on a pallet about circular conveyor means, passing through a curing area and ejection station where the cured block is removed from the pallet and the pallet returned to the molding station.

Abstract: Apparatus for automatically constructing prefabricated wall sections of brick wall panels with a tile lining. A prefabricated brick wall panel has columns of mortar disposed in parallel strips thereon, a lining panel of unconnected tile members is assembled, proper spacing being introduced between each of the tile members, and the tile members are transferred in groups or en masse to a position over the wall panel. The lining panel members are then firmly pressed into engagement with the wall panel with mortar columns therealong, thereby forming a completed wall section. Preferred specific apparatus includes vacuum grippers, scissor-connected link spacing means, and flatbed cars movable on tracks to a position below automatic mortar applying means.

Abstract: A bearing assembly comprises two engaging members movable relative to one another. One of said members has a bearing surface made of metal or ceramic coated with a thin film of a parting agent, and the other bearing surface is a cured mixture of a curable acrylate composition and particulate polytetrafluoroethylene.

Abstract: A process for forming a removable dental cast embedded with a plastic, threaded, cast ejector button, and apparatus for fabricating a plurality of cast ejector buttons comprised of a mold device including an upper plate containing a plurality of mold cavities, and a base plate incorporating coil spring means for resiliently maintaining the upper plate in a predetermined spaced-apart and open relation thereto and a plurality of rigid support elements attached, at their bottom ends, in vertically-upright relation on the base plate and slidably engaged, at their upper ends, in a bottom opening in each upper plate-mold cavity and extending in overlapping relation into the respective cavity. The upper ends of each rigid support element are threaded so that, when the mold cavities are poured with and filled by a suitable material, in the plastic flow form that is allowed to set for a specified period, a separate and internally threaded plastic cast ejector button is formed in each cavity.

Abstract: Apparatus for producing resistors wherein substantially round heads are heat-formed on the ends of the leads and molded, under a predetermined pressure, into electrical and mechanical contact with a quantity of resistive material to form an integral body.

Abstract: An apparatus and method for making a support device, typically of synthetic plastic material, in which fibrous backing members are concurrently cut, positioned, and bonded to the support device as it is formed. In an injection molding machine, a punch and die assembly cuts the backing members from a strip of fibrous material and automatically positions the members adjacent one side of the mold cavity. Molten plastic material is injected into the mold cavity and forms the support device while simultaneously adhering to the fibrous backing members. The completed support device has a body portion with load carrying members projecting from the forward surface thereof. The fibrous backing members are molded directly onto the rear surface of the body portion and a coating of adhesive material is placed on the outer surface of the fibrous backing members for securing the completed support device to a surface such as a wall or door.

Abstract: Ceramic plates are held by suction against a mat with holes corresponding to the plates and then concrete is cast on them. In order to aid bringing the plates into air-tight engagement with the mat, a flexible sheet is temporarily laid over the plates and then later removed.

Abstract: Disclosed is a device for making panels, such as wall panels, particularly of the type having metallic skins with a foam insulation therebetween. A movable carriage supports temperature controlled mold platens which can carry the skin material and which swing about a common axis to open and close. The carriage is positioned under a moving nozzle assembly which dispenses the insulation material between the skins. Means are provided to form male and female ends for the panels for interlock with other panels. In addition, means are provided so that the apparatus can be readily adjusted to form panels of varying widths.

Abstract: In a compacting press, the container in which the material is compacted is sealed by a cover which is positioned in the open end of the filled container before the container is removed from the press. The cover positioning device is movable into and out of operative position to permit operation of the press and the apparatus is remotely controlled externally of the vacuum chamber in which the press is located.

Abstract: The novel embodiments disclosed herein also illustrate a novel method for making a recuperator structure. First and second pluralities of layers of elongated tubes are provided which are formed of a glass that is thermally crystallizable to a low expansion glass-ceramic. Each of the tubes is filled with a fluid medium that is expansible in response to the application of heat and the tubes have sealed ends to retain the expansible fluid medium entrapped therein. Each of the tubes has an essentially straight central portion and header connector portions continuing from each end of the central tube portions to the sealed end of the tube. The header connector tube portions of the first plurality of layers diverge away from the header connector tube portions of the second plurality of layers at the ends of the central tube portions when the first and second layers are placed on top of each other.

Abstract: The invention is concerned with apparatus for manufacturing gas turbine engine components e.g. guide vanes and blades, in dense silicon nitride starting with silicon nitride in a powder form.Guide vanes are usually in the form of an aerofoil portion and two shroud portions and according to the invention, the aerofoil portion is made in a first mould by hot pressing a mixture of silicon nitride powder and a fluxing agent, such as magnesia. The formed aerofoil is placed in a second mould so that each end extends partly into a space which is to be filled with a further mixture of silicon nitride powder and a fluxing agent. The further mixtures are hot pressed both to form the shroud portions and to amalgamate the shroud portions with the aerofoil portion.Features, such as, flanges and webs can be formed in the shrouds during the moulding process or they can be machined into the shrouds after the vane is removed from the second mould.

Abstract: Multi-partitioned containers such as battery boxes having unitary, one piece metal connectors extending within and through the partitions and a mold assembly for producing such containers.

Abstract: Control circuitry for record pressing equipment is provided, and is characterized by ease of shifting between automatic and manual operational modes, and at any stage, as well as by simplicity and ease of operation. The flow control of cooling a heating fluid for the die means is integrated with the control circuitry.