Abstract: Device for producting conical cases from strips of dough, wound on a carrier, with a first supply ascending under belt for these strips, a second supply belt, the end of the first belt, and winding units each movable at a right angle to said second belt, and each with a detachable carrier on a rotary core.

Abstract: Apparatus for twisting dough comprises juxtaposed conveyor surfaces, each comprising a plurality of laterally spaced-apart conveyor belts moveable in parallel adjacency, each belt of each conveyor surface being juxtaposed with a belt of the other conveyor surface, thus forming a plurality of laterally spaced-apart belt pairs. The juxtaposed conveyor surfaces thus form a conveying passageway. A belt in a belt pair moves at a higher speed than the other belt in that pair, and the speed of the two belts is such that a substantially cylindrical object disposed across adjacent belt pairs is rolled between the adjacent belt pairs as it is being conveyed along the passageway. The speed of the individual belts of the adjacent belt pairs is such that the net velocity along the passageway imparted to the object is the same at each of the belt pairs, but is also such that a greater rotational speed is imparted at one belt pair relative to that at the adjacent belt pair.

Abstract: Apparatus for forming filled dough products comprising: piston extruders for pumping dough and filling to measuring devices which extrudes external dough tube with internal filling through a die head so that part of the dough tube of one item is extruded without filling, a twisting device for turning just extruded item around its longitudinal axis and twisting the empty part of the dough tube, and pinching device for forming closing and separating ends of the items.

Abstract: A helical band is produced by applying a layer of heat-settable material on to a rotating support to one side of the axis of rotation. Heat is applied to the layer, as by the support while it rotates, for a length of time sufficient for the material in the layer to set to a required extent to form the band. The band is removed before it comes into contact with the material being applied on the support. The band is preferably made of electrically-insulating material so that it can be wound helically round and bonded to a cylindrical rod of electrically-insulating material to form a helically flanged insulator for use in an overhead electric power transmission line, the flange-forming band defining along the rod a helical leakage path of substantially uniform width.

Abstract: In an apparatus for forming a row of zigzag coupling elements, a winding unit includes a guide plate having a guide hole through which a monofilament is supplied onto a periphery of a continuously rotating die wheel. The guide plate is driven by two separate drive mechanisms, for lateral reciprocating movement and tangential reciprocating movement, respectively, with respect to the die wheel periphery so that the guide hole traces a horizontal figure-eight curve to thereby wind the monofilament alternately around a pair of rows of circumferentially staggered pins, on the die wheel periphery.

Abstract: In the production of an optical fibre cable a core (3) of thermoplastics material is extruded with a plurality of longitudinally-extending grooves (15) in its outer surface around an electrical conductor (1) and is initially cooled: then following the introduction of one or more fibres (11) in at least one of the grooves the core assembly is passed through an induction heating unit (17) in which the conductor is heated to an extent sufficient to soften at least the adjoining region of the core, and the core is twisted to cause the grooves to take up a helical or periodically reversing helical path, and is again cooled to leave the grooves in that condition.

Abstract: The apparatus comprises a dough preparation station, for preparing fresh dough and a tank adapted for containing water at 100.degree. C. for pre-cooking dough produced at the dough preparation station. A roller is effective to prevent pre-cooked dough from breaking as it is moved to a shaping station, including a pair of conveyor belts having vanes for shaping dough. The apparatus further comprises a cutter for cutting shaped dough, into segments of preset dimensions and a drying station, for drying dough segments.

Abstract: A forming machine forms elongated rolls of croissant dough into a curved form, and in particular the apparatus shown pinches the ends of the elongated dough together after it has been folded around a forming mandrel. The sequence is done as the dough is moved along a conveyor automatically and at a high rate of speed.

Abstract: An extrusion head is disclosed, for extruding weather strips of elastomeric material, particularly for motor vehicles, of the type comprising an anchoring section and a longitudinal sealing section in the form of a tab coextruded with the anchoring section. The extrusion head comprises a die with an extrusion orifice having a shape corresponding to the cross-section of the weather strip to be extruded, and a deflector device adapted, when actuated, to change the inclination or orientation of the sealing section relative to the anchoring section during extrusion.

Abstract: Apparatus for shaping a product of fish-paste which provides moving a fish-paste sheet having grooves on one or both surfaces thereof in its length direction, curling the sheet obliquely to the sheet-moving direction with one lateral edge of the sheet as a core to form a rolled-up article, pulling the resulting rolled-up body in a direction parallel to the sheet-moving direction around a rolling post installed outside of the opposite lateral edge line of the sheet.

Abstract: A leading end portion (33) of a supply of cordage (31) is clamped to a mandrel (32) such that it is straight, after which a plurality of convolutions of the cordage are wound on the mandrel. The cordage is severed from the supply and a trailing end portion (34) of the wound cordage is clamped to the mandrel in a manner which causes it to be straight and hence suitable for termination with a modular plug (37). The coiled cordage is heated and cooled and is then removed from the mandrel while simultaneously the direction of the helices is reversed. Then the cordage is severed at a predetermined location to produce two retractile cords, for example, one including the leading end portion of the length of wound cordage and a newly formed straight trailing portion. The second cord includes a newly formed straight leading end portion and the initial trailing end portion. The newly formed end portion of each cord is caused to be held in a straight configuration and annealed to cause it to retain that configuration.

Abstract: A wound coil of an elastic material is formed by feeding a monofilament of elastic material over a winding coil of a coiling head onto a mandrel to form a coil. A pair of conveyors are located on opposite sides of the coil on the mandrel and define therebetween a stabilizing zone for moving the coil along the mandrel through such zone while heating and thereby stabilizing the coil. The conveyors include respective heating elements located on opposite sides of the coil and respective planar members formed of a heat transmitting material and between which the coil is fed along the mandrel. Each planar member is in contact with the coil and a respective heating element.

Abstract: Flexible sheets of foodstuffs, such as a tortilla, are prepared for cooking by automatically wrapping each tortilla around a perforated inner cooking cylinder and telescoping an outer cooking cylinder over the so-wrapped inner cylinder. Vacuum is applied to the inside of each cylinder to hold the tortilla in place, and as the cylinder continues to move along its circular path it moves past a flexible guide arrangement which contacts the opposite surface of the tortilla and wraps it around the cylinder.

Abstract: Apparatus for constantly pulling and stripping a cord from a coiled disposition about a mandrel for moving the free cord in a direction substantially perpendicular to the path of movement of the cord on the mandrel. The apparatus includes a pinch roller assembly for pulling and stripping the cord and for both imparting movement to the cord in a downstream direction while the cord is immobilized rotationally at a transition point of pulling and driving of the cord. A reverse drive apparatus grips the cord and moves away from the pinch roller assembly as the cord between the free end and the point of immobilization is reverse wound into a coil tighter than the coil on the mandrel. The reverse drive apparatus moves to accommodate the ever increasing length of cord driven by the pinch roller assembly.

Abstract: A coupling element shaper comprises a pair of parallel externally threaded screw members corotatable in a common direction and disposed on opposite sides of a mandrel along which a core thread is fed while a filamentary material is wound around the mandrel into a row of helically coiled coupling elements. Each screw member has a portion varying in pitch to gradually reduce in a direction from one end to the opposite end thereof. The core thread is squeezed by the coupling elements as shaped by such portion so as to have a certain degree of stretchability which can cancel or take out its shrinkage when the coupling elements are sewn to a slide fastener stringer tape.

Abstract: A stamping apparatus disclosed deforms a filamentary material to provide coupling heads and the like at predetermined intervals along the length of the filament which is to be coiled and attached to stringer tapes for a slide fastener. The apparatus includes a pair of stamping rolls which are rotatable in opposite directions on their own axes simultaneously as they orbit about the axis of a rotor. A ring member rotatably connected to the stamping rolls is driven via the same power source as the rotor but rotates at a slower or faster angular speed than the rotor, the resulting angular speed differential being utilized to effect the rotation of the stamping rolls on their axes.

Abstract: An automatic machine for forming shaped dough pieces which are fed, as strips, by a conveyor and discharged onto a baking tin. The frame oscillates along a horizontal plane and each point thereof describes a closed trajectory so as to form shaped pieces of a closed or open configuration. In this way, it is possible to form in the baking tin placed beneath the conveyor belt, in consequence of the combination of the oscillating motion of the tin and the discharge therein of the strips, pieces of dough that extend along closed trajectories, particular trajectories being constituted by two identical superimposed branches. After the shaped dough pieces have been formed, suitable cutting means shear the parts of the strips of dough situated between the conveyor and the baking tin disposed below the conveyor.

Abstract: A plant providing rolling-up of a portion of baked paste between a roller-up mandrel and a belt applied on about half the surface of the roller-up mandrel, and transfer of the so formed rolled-up biscuit, the latter being of a double thickness on a portion of its surface, this paste for biscuit formation being presented by a deflector plate into the space existing between said roller-up mandrel and said belt, this plant being comprised of an intermittently rotating barrel which is equipped with a number of roller-up mandrels freely rotating on said barrel, so that axes of roller-up mandrels are parallel to the axis of said barrel, an oscillating arm alternately moved in a plane perpendicular to the barrel axis, said oscillating arm being provided with two guide cylinders on which said belt moves, said belt being arranged in such a manner on said oscillating arm, with respect to a roller-up mandrel, in the rest position of the barrel, so as to allow reception of a rolled-up paste portion from said deflector pl

Abstract: Arrow fletchings (42,102) disclosed have curved vanes (50,114) inclined inwardly in a rearward direction to provide pockets (54,118) for restricting air flow while allowing vane flexing in a manner that moderates drag in response to wind changes. One fletching embodiment (42) is preferably made by plastic extrusion and a subsequent heat forming process and includes a vane (50) whose inner portion projects radially from its foot (44) and whose outer portion define its curved pocket (54). Another fletching embodiment (102) made from sheet plastic includes a vane (114) that projects tangentially from the arrow shaft on which its foot (104) is mounted and is curved to define the pocket (118) that restricts air flow. A fixture (68) for heat forming the pocket of the one fletching embodiment (42) and a method for making the other fletching embodiment (102) are also disclosed.

Abstract: A comestible extruding apparatus including a pressure chamber having an outlet, a hollow extrusion die journaled in the outlet, and a hollow seal force fit in the outlet and having a neck extending slidably into the hollow die, the neck and die combining to define a rotary seal for the comestible.

Abstract: Turbulence members made of a synthetic resin are manufactured by a method which comprises melting a synthetic resin and causing the molten resin to be rotated around its axis and at the same time extruded in a state wherein the molten resin is spirally twisted by use of an extruding means provided with a rotary nozzle having a slit, passing the extruded molten resin under water in a cooling means thereby cooling and solidifying the extruded resin and drawing the resultant resin with a drawing means. The cooling means is provided with a relatively narrow and relatively wide chamber to facilitate uniformity and efficiency of production.

Abstract: A system for curling turned-in lips about the open mouths of thin walled, stacked, thermoplastic containers, having brims which extend in a return direction axially, utilizes a plurality of externally helically grooved, tubular, thermally conductive, synchronously rotated rollers equiradially spaced from a common central axis to define an annular passageway between them through which a stack of the containers pass with the brim of the containers simultaneously engaged in the grooves of the rollers. While the brims are being heated radiantly and via conduction substantially to the critical forming temperature, the brims are engaged in the transport portions of the grooves, but the peripheral side wall portions of the container are not contacted.

Abstract: A method of and means of winding close wound helical coils of a thermoplastic monofilament material is proposed wherein, in order to avoid secondary twist in the resultant coil, the coil, after having been wound and heat set under controlled conditions on a first part of a mandrel, is twisted in a direction tending to close the individual turns of the coil during the cooling thereof while passing along and/or from the end of a second part of the mandrel to a twist arresting means arranged in spaced apart disposition relative to such end.

Abstract: An apparatus for automatically making egg rolls comprises an intermittently moving transmitting device and a plurality of forming assemblies on the transmitting device. Each forming assembly includes folding devices for folding three side portions of an egg roll dough and a mold device for receiving a part of the egg roll dough and an egg roll stuffing therein. The apparatus further comprises a device for feeding the egg roll dough successively on each forming assembly, a device for supplying the egg roll stuffing on the egg roll dough, a device for actuating the folding means of the forming assembly to fold three side portions of the egg roll dough over the stuffing in the mold device to thereby form a partially folded egg roll, and a device for wrapping the partially folded egg roll to form a cylindrical egg roll product.

Abstract: A casing of stretched plastic material, whether or not filled with a fluid such as gas or air, is wound with some tension about a smooth heated mandrel. During its curved path of travel said casing is on the one hand subjected to a contact or a radiation heat and on the other hand to a convection heat, said contact radiation heat prevailing during a period of time which is greater than that of the convection heat, thus causing the inner curved portion of the said casing to set during the time that the outer portions of the casing windings have already cooled down, so that smooth curved surfaces are obtained.

Abstract: A machine assembly for producing lengthy rolls of bakery products such as biscuits and the like, wherein the machine includes an inlet work station having a device for forming a plurality of separate bars of dough and the machine also includes an outlet work station having a device for forming a continuous spiral in each of the bars of dough with the spirals interlocking to form a braided roll of dough. The machine assembly further includes a conveyor assembly for transporting the bars of dough between the inlet and outlet work stations while kneading and rolling the bars into their final configuration.

Abstract: Improvements in apparatus of the type including a mandrel around which a continuous filament is coiled and which has a guide channel formed longitudinally therein for slidably receiving a continuous core to be positioned within the coil, and a mandrel holder holding the mandrel adjacent one end thereof and reciprocating with the latter in the longitudinal direction thereof in step with the formation of each convolution of the coil. A unit length of the core required for each coil convolution is forcibly pulled away from a core pay-off bobbin by a pair of pull-out rolls actuated intermittently by a ratchet mechanism. The mandrel holder has formed therein passageways through which the core travels from the pull-out roll pair to the entrance end of the guide channel in the mandrel.

Abstract: An apparatus for producing a plurality of trapezoidal dough pieces of the same orientation from a web of moving dough sheet includes a first rotatable cylindrical cutter producing two kinds of series of trapezoidal dough pieces arranged in opposite orientations, one kind of series of continuous, the other separated into pieces. The series which is continuous is sidetracked upwardly, cut into pieces by a second rotatable cylindrical cutter and then reversed by passing around a curved surface and following onto the moving surface on which the dough pieces of the other series are being conveyed. The fall causes all dough pieces to have the same orientation.

Abstract: The invention relates to a machine for rolling pieces of soft material in leaf form, more particularly food products, such as pancakes. According to the invention, the pieces of material are delivered on a substantially horizontal conveyor belt (1) and are brought into contact with at least one other conveyor belt (8) which crosses the first conveyor belt and has an oblique upward movement relative to the direction of movement of the first conveyor belt. The two belts (3, 9) of the two conveyors are formed by several cords or strings (4, 10) which are parallel to one another and spaced apart from one another, the belt (9) of the second conveyor crossing the horizontal belt (3) of the first conveyor by passage of its cords or strings through the spaces between the cords and strings of the first conveyor.

Abstract: A method and apparatus for making a self-coiling sheet. The apparatus includes a work station at which a relatively short section of a sheet of flexible material, e.g., crystalline polyethylene terephthalate, is folded upon the remainder of the sheet. The sheet is then advanced onto the carrier plate which, in turn, is mounted for movement toward and away from a gap defined by a pair of superposed pressure-applying rollers. The carrier plate is adapted to deposit the sheet between the rollers such that the folded section of the sheet is located in engagement with one of the rollers and the underlying portion of the sheet is in engagement with the other roller. The rollers are rotated in the same direction so as to drive the folded section of the sheet toward the carrier plate while simultaneously driving the remainder of the sheet in the opposite direction. This action results in the sheet being ejected from the gap of the rollers as a multi-layered generally cylindrical coil having a permanent set.

Abstract: Apparatus for forming the rim on a foam plastic container such as a cup by use of a segmented rim former. The cavity in the rim former is contoured so as to produce a curled rim that is flat on the top. The flat top of the rim is parallel to the bottom of the cup.The apparatus comprises a segmented rim former with a combination of linear and curved surfaces that form a noncircular container rim.

Abstract: A method of curing a polymeric hose are provided wherein a hose to be cured is confined within a tubular preformed spiral confining wall of a mold structure to thereby provide optimum support for the exterior surface of such hose during curing which assures provision of a precision outside surface yet enables curing of a substantial length of hose in a comparatively compact volume.

Abstract: A strip of heated thermoplastic material is extruded from a die past first and second stations while the strip is drawn down between the die and the first station. Initial cooling of the strip is performed at the first station and further drawing down of the strip is effected between the first and second stations. The strip is thereafter guided through a plurality of spaced convolutions about a journaled cylindrical member driven at a peripheral speed substantially equal to the linear speed of the strip as it enters the second station.

Abstract: A continuous fiber reinforced pultruded rod-like reinforcing element is disclosed. This rod-like element includes at least one groove and/or protrusion along its length, with the continuous reinforcing fibers in the protrusions or surrounding the grooves generally conforming to the pattern of the outer surface of the rod. Preferably, the protrusions and/or grooves form a generally helical pattern on the surface of the rod. The rods formed by the instant invention have utility in reinforcing such structures as concrete, mine roofs, plastics and the like. Also disclosed are methods and apparatus for producing these stock materials.

Abstract: Method of manufacturing helical members from a synthetic plastic material comprises the step of leading the extruded material while still deformable along the helical path and permitting it to harden while retained in that path. The invention also comprises a machine for carrying out this process and the article produced thereby.

Abstract: Apparatus for cold-forming a thermoplastic sheet to provide a circular container part such as a lid or dish comprising opposing concentric die members for engaging a sheet of thermoplastic material, the sheet being drawn around the circular edge of one of the die members to provide a concentric central portion and a concentric annular depending skirt having a proximal edge adjacent the central portion, an intermediate portion, and a distal free edge, providing an annular void in the die members adjacent the skirt. Apparatus is provided for moving the free edge toward the proximal edge while holding the proximal edge to buckle the intermediate portion into the void. The void has a tapered surface inclining radially outwardly and axially toward the proximal edge to hold the free edge radially inwardly, thereby to permit the intermediate portion to buckle outwardly into the void.

Abstract: A column of striated soap extruding from a plodder nozzle is subjected to torque for obtaining spiral striations in the final soap bar.

Abstract: A method for shaping a helical twist in a ribbon of thermoplastic material, as well as a method of making a composite structured article in which a tubular sheet is formed around the twisted ribbon is disclosed.

Abstract: A slide fastener and method and apparatus for making the same are disclosed wherein coils of filamentary material are secured to adjacent edges of a pair of carrier tapes. Each coil of filamentary material is formed from a filament having a specially shaped cross section which is arranged in a mirror image relationship with respect to its adjacent filamentary coil. During formation of the filamentary coils, they are simultaneously wound on a mandrel having differently shaped surfaces which aid in the final shaping of each coil.

Abstract: A machine having two extruders operable to move hot plastic materials of different colors through passages of a die. The die has a merging chamber where the plastic materials from the two extruders are fused in side-by-side positions and an outlet opening through which the fused materials are discharged to form a two-colored ribbon product. A rotatable mandrel located in a water tank winds the ribbon product into a helical coil spring shape. A separator plate surrounding the mandrel guides the ribbon in a helical direction as the ribbon is wound around the mandrel. The ribbon product is cooled and set as it is wound around the mandrel.

Abstract: The edge knurling of a thermoplastic web must often be carried out at elevated pressure in order to ensure a sufficient knurling depth even after the web has been wound and unwound different times. The prior heating of the web margins permits knurling to be carried out at lower pressures but may adversely influence the crystallinity of a film and also requires an increased amount of energy.The heating of the knurling wheel or tool itself reduces such disadvantages.

Abstract: An apparatus for forming a cross-oriented film which apparatus includes a device for maintaining the temperature of a thermoplastic synthetic resin tubular film below the melting point, and above the secondary transition temperature thereof, a twist-preventing device for pressing and feeding the tubular film in the film-forming direction, a cross-orientation device for holding the tubular film and for rotating the same, while vertically disposed, relative to the film-forming direction at a peripheral speed two or more times as fast as the feeding speed of the twist-preventing device, and a take-up device for successively flattening the tubular film into two layers.

Abstract: In an injection blow molding machine, parisons are stretched and twisted as they are moved between the parison mold and the blow mold by extending and rotating the parison pins. The stretching and twisting of the parison prior to the blowing operation permits larger containers with smaller finishes to be produced and also permits the finished article to be stronger by regulating the molecular arrangement in the plastic material forming the article.

Abstract: An improved method for reclaiming waste plastic materials generated during an extrusion coating operation. A rotating funnel or other device is used to gather the hot molten plastic waste material and twist it into the shape of a rope. The plastic rope is passed through a cooling bath and one or more pinch rollers. After passing through the rollers, the plastic rope is spooled, chopped, or fed to a plastics processing machine.

Abstract: Apparatus and methods for forming generally tubular pipe covering sections with overlapping edge portions from a sheet of elastomeric material. For relatively thin material thicknesses the material is rolled on a male mandrel to provide a plurality of spiral wraps and this roll is heated to a selected temperature between 120.degree. F and 150.degree. F for at least 12 hours to effect a set in the roll. Selected lengths of the sheet material are cut from the roll to provide tubular pipe covering sections of a selected circumferential size. For relatively thick material thicknesses with substantial rigidity, a continuous roll of the material is cut transversely along its length to form a series of blanks. The length of the blank is established by the width of the roll and the width of the blank is selected according to the diameter of the pipe or insulated pipe to be covered.

Abstract: A machine for the manufacture of twisted pastry bars comprises coplanar and spaced-apart supply and discharge belts, the supply belt being advanced intermittently to convey a strip of dough to a cutting station where the strip is cut into successive, transversely extending ribbons. Pairs of facing upper and lower conveyor belts are positioned between the supply and discharge belts, the conveyor belts defining therebetween a coplanar bed for conveying the successive ribbons to the discharge belt which supports and removes the twisted bars. While the ribbons are entrained by the facing conveyor belts, they are gripped at spaced positions against transverse displacement.

Abstract: A plurality of groups of mandrels are arranged for movement successively through a plurality of workstations with each group being worked on at a station while other groups are being worked on simultaneously at other stations to produce continuously automatically groups of retractile cords. Cordage is fed from a supply into clamping engagement with each of the mandrels in the group in a cord-loading position and then wound in a plurality of spaced-apart convolutions on each of the mandrels of that group after which the wound cords are severed from the cordage supplies. The wound cords are advanced incrementally through a heating zone, wherein the cords are exposed to radiant heating supplemented by preheating of the mandrels while cordage is being wound on the next successive groups of mandrels.