Abstract: A rotary roll extruder which performs shaping of material to be extruded such as raw rubber, or the like by ejecting the material to be extruded through a mouth piece by means of an extruding roll. This extruder comprises mouth piece moving means for moving a mouth piece in a radial direction of an extruding roll to make the mouth piece approach, or separate from, the circumferential surface of the extruding roll, mouth piece positioning means for positioning the mouth piece when the mouth piece is held apart from the extruding roll, and mouth piece stocking means for preliminarily stocking various kinds of mouth pieces. Shaping of the material to be extruded is effected when the mouth piece has been brought close to the circumferential surface of the extruding roll by the mouth piece moving means and it has been positioned by the mouth piece positioning means.

Abstract: A guard at the inlet side of the nip of two rolls in a calender or a like machine has an elongated support which is mounted in the machine frame for movement toward and away from the rolls at the inlet side of the nip. The support carries two elongated strips each of which is adjacent one of the rolls and has several sections. The support carries discrete moving mechanisms for the sections of each strip regardless of whether the sections are discrete sections or such sections form parts of a one-piece strip. This renders it possible to select and alter the width of the entire clearance between each strip and the periphery of the respective roll regardless of eventual deformation of the support and/or of the rolls.

Abstract: An apparatus for use when manufacturing a substantially circular dough product, said apparatus comprising a turntable defining a planar surface, and conical roller means adapted to cooperate with said turntable and defining a rolling line in the region of the roller close to said planar surface, the turntable being rotatable to permit effective movement between said rolling line and the turntable, the apparatus being provided with means to cause the roller and turntable to move from a relative space to part position to an operative position with a reduced spacing therebetween for a predetermined operational period of time and to cause the roller and the turntable subsequently to return to the initial spaced apart position.

Abstract: A calendering apparatus is disclosed which includes means for replacing a desired take-up roller from a take-up roller train. Displaceable, bifurcated carrier means are disposed on the embossing means forming part of the calender apparatus, which carriers can accommodate individual take-up rollers. The rollers are then moved out of the train by such carriers. The embossing means are also displaceable into a position in a lifting mechanism which can be used to collect the roller from the carrier.

Abstract: A continuously operable press for the manufacture of laminates and similar products has a heated press roll, two guide rolls, and at least one tensioning roll. One end of the rolls is journaled in bearings at a fixed support wall and the other end of each roll is removably journaled in bearings of a movable support wall. A pressure belt is passing over the rolls, but a decorating roll sleeve can be slid on and of from the press roll, and this provides a decoration on the adjacent laminate surface. The press has a device for lifting the relaxed pressure belt so as to remove the decorating roll sleeve. The lifter device has at least two transverse lift bars with suction heads, and the lift bars are distributed about the upper circumferential region of the press roll. Compressed air can be introduced between the press roll and the decorating roll sleeve when taking the decorating roll sleeve from the press roll.

Abstract: A screw extruder of the elastomeric material type includes a feed section with a power driven feed roll in a feed box running adjacent and counter the rotation of the screw. The roll is journaled for rotation on a frame which may easily be moved to and from an operative and an open position to facilitate service or cleaning. A quick release mechanism secures and releases the feed roll in the operative position. The roll frame is mounted for easy movement on horizontally extending guide rods which may extend and be journaled for sliding movement over or under the feed section. The feed box includes an insert which is adjustable and incorporates roll end lip seals and also a separately adjustable roll face scraper or seal thereby to reduce clearances as wear occurs without disturbing the proper relationship of such seals.

Abstract: A device to produce material webs of thermoplastic plastics, independently of the thickness at least between 100 .mu.m and 12 mm includes a single apparatus comprising cooled calender rolls mounted on a respective bottom frame and a top frame. The top frame is adjustable relative to the bottom frame between two operating positions. Of a feed roll pair, preferably directly following a sheet die, one of two feed rolls is arranged in the bottom frame and the other in the top frame. Thereby, in one operating position, the upper feed roll, and in the other operating position a smoothing ledge is associated with the feed roll of the bottom frame. The smoothing ledge is provided at the top frame and preferably has an air outlet nozzle. The top frame is preferably arranged with a slide which is displaceable in a slideway of the bottom frame.

Abstract: Method and Apparatus for forming an elastomeric strip formed from at least two elastomeric compounds, for example to use as a pneumatic tire tread strip. Extrusion means advance two or more elastomeric materials (60) under pressure toward a final die chamber; from which material is extruded between a final die (50) and a roller (70). A head assembly (30) and a preform die (62, 64) are positioned in serial flow relationship between said extrusion means and said final die, and flow chambers formed within said head assembly and said preform die intercommunicate said extrusion means with said final chamber. Flow chambers within the preform die converge to at least one common junction within said preform die to form a single preform die exit chamber wherein a multi-material flow of elastomeric materials is established for passage into said final chamber for final extrusion therefrom.

Abstract: An apparatus for the manufacture of selectively apertured thermoplastic sheet or film, comprising a rotatable molding element means for receiving the film and which means has a predetermined pattern therein wherein as the film is contacted with the rotatable molding element means and a fluid pressure differential is applied to the surface of the film, a desired pattern of perforated areas and non-perforated areas are imparted to the film with each of said areas being continuous across the web of the film and alternating in the machine direction.

Abstract: An embossing calender for thermoplastics films in which the film is embossed by passage between an embossing roller and a counter-roller and in which the rollers can be rapidly changed or replaced. This is achieved by providing separate support arrangements for the two rollers, which arrangements permit the respective rollers to be displaced into and out of their working positions. The support arrangement for the embossing roller comprises a support member along which at least one holder for the roller is displaceable between a working position and at least one further inoperative position. This permits the selective positioning of each holder and its associated roller.The arrangement for the counter-roller comprises a support which has a pivotally mounted displacement device associated therewith. The displacement device includes holders.

Abstract: The dough-rolling machine comprises two dough rollers, the upper one being adjustable in height. Two dough-conveyor belts are guided over inner conveyor-belt rollers. Between each of these rollers and the lower dough roller is a measuring roller. The dough is rolled out in several passes, one or the other of the conveyor belts serving alternately as the feed belt. The speed of rotation of the dough rollers is constant, as is the speed of the conveyor belt transporting the dough away from the dough rollers. The speed of the conveyor belt feeding the dough is adjustable and is regulated by means of the measuring roller measuring the actual rate of feed of the dough. Optimum control of this feed rate is important in order to avoid undulation or overstretching of the dough, which can destroy it, necessitate rerolling, or result in excessive rejects. The dough-rolling machine needs no operator.

Abstract: The calender rolls of a calender are provided with heat insulating protective shields which can be laterally pivoted open and with heat insulating end covers or closures at the ends of the rolls. At least one of the rolls is provided with a blower device for generating air flows or jets which can be regulated over the length of such roll to equalize the temperature over the length of this roll.

Abstract: At least one roll of the calender is heated and provided with heat insulating shields pivotably mounted on the sides of the calender and heat insulating end covers disposed at the ends of the rolls. A counter roll (controlled deflection roll) cooperates with the heated roll in the direction of its pressure or pressing action. The counter roll is provided with a cooling device (blower device) which is capable of being regulated in zones for cooling the surface of the counter roll.

Abstract: A rotary roll-type rubber extruder including a roll having an outer cylindrical surface rotatively driven by driving means, a housing having a stationary concave surface spaced from and in opposition to the rotating outer cylindrical surface of said roll between a pair of sidewalls close to the outer cylindrical surface of the roll to form a define chamber with the roll, and a mouthpiece detachably secured to the housing to form a defined extruding opening with the roll at an outlet of the defined chamber.The concave surface of the housing is determined such that pressure gradients at mouthpieces are within a quadrilateral area having four corners corresponding to pressure gradients 65 and 150 kg/cm.sup.3 at a 1 mm opening mouthpiece and pressure gradients 11 and 23 kg/cm.sup.3 at a 5 mm opening mouthpiece in a graph having an ordinate in logarithm showing the pressure gradients ##EQU1## and an abscissa in logarithm showing heights mm of openings of the mouthpieces.

Abstract: An apparatus and method wherein strips of elastomeric material are fed separately onto a roller at more than one position around the circumference of the roller at predetermined axial locations to form predetermined cross-sectional areas of the cross section of the band. Between the positions where the strips are applied and prior to removing the band from the roller, guide means is provided to guide the strips in the predetermined axial locations. The guide means confines the strips between a circumferentially grooved guide member and the cylindrical surface and the grooved guide member may be a replaceable insert mounted in a recess of a plate for accommodating different sizes and shapes of the formed band with different inserts.

Abstract: A dough manipulator adapted for manually controlling the thickness of dough is disclosed which comprises a roller with handles and means for maintaining the roller at a predetermined height above a surface, wherein the means for maintaining the height of the roller is placed at a predetermined distance from the ends of the roller. Height maintaining means include spacer rings positioned on the roller or spacer strips positioned on the surface. The manipulator is used in conjunction with a surface which is substantially flat.

Abstract: A five roll calendar apparatus includes five rolls mounted in a common horizontal plane, including three heated rolls with first and second covered rolls. Each heated roll includes an inner rigid core having an outer finished surface. A plurality of grooves are formed by machining the face of the core and a thin sleeve is shrunk fit onto the core to seal the grooves and establish heat transfer passageways. The size of the passageways, the separating lands and the shell thickness are such that the temperature at the surface of the roll is essentially constant over the portions of the cavity and the adjacent core body. The thin outer wall establishes a short time response for correcting the temperature of the web. The center roll is rotatably fixed and the other rolls are individually loaded toward the fixed roll for controlling of nip pressure. The covered rolls are mounted in suitable slide supports. The end rolls are mounted to a torque shaft which provides a high degree of squareness to the roll loading.

Abstract: A hydraulic roll protection system in which positioning of an adjustable roll relative to a fixed roll is caused by adjusting screws acting on movable journal boxes through a pressurized piston cylinder device. A relief valve between a hand pump and the cylinder acts to relieve excessive pressures. A switch valve connects the hand pump alternately to advance the roll journal to normal gap positions and to retract the roll from the fixed roll.

Abstract: A roller press comprising a drivable pair of rollers with a defined nip between these, one or more stuffing screws, associated with the nip, for feeding the material to be granulated to the nip, and a plate, movable in the direction of the screw axis, on which plate the screw and drive are fixed and a pin which can be brought up against a stationary load cell is held.

Abstract: A film stretching unit movably positioned adjacent to an existing calender installation is described which includes a plurality of strecthing rollers having internal rotary joints for circulating a heating fluid therethrough. Alternate rollers are movable vertically without needing to change their rotational speed in order to easily thread the film through the stretching rollers.

Abstract: The feed of a sheet of biscuit dough via gauge rollers to cutting apparatus is automatically adjusted to compensate for variations in the thickness of the sheet emerging from the gauge rollers, by measuring the power consumed by or the torque applied to an electrical drive unit driving the gauge rollers, producing an electrical signal proportional to the measured power or torque, and utilizing the signal to adjust the feed of the sheet and correct over- or under-feed to the gauge rollers.

Abstract: A roller head securable to the discharge end of an extrusion machine, wherein the roller head has a pair of rollers each rotatable between a pair of arms pivotable about an axis transverse to the extrusion machine. Each roller is movable with respect to the other roller and to the axis of the extrusion machine by a pair of pressurizable cylinders arranged between the pivotable arms. The rollers are rotatable, even in their separated state, by an articulated drive system which permits roller rotation during machine output and during roller support arm movement. The rollers are permitted to "float" on a hydraulic suspension system utilizing an accumulator wherein the separation of the rollers is dependent upon the volume of extrudite being forced therethrough.

Abstract: A method and apparatus for extruding a radiant energy heat exchanging panel structure having a multiplicity of parallel passages extending longitudinally therethrough defined by a multiplicity of longitudinally extending integrally interconnected exterior and interior thin wall sections, in which the temperature of the plastic material moving longitudinally away from the extrusion outlet is reduced by flowing fluid into said passages and on the exterior sides thereof, by contacting the exterior sides with pairs of cooled rollers, by rolling a liquid medium upon the operative exterior side, and by flowing a liquid spray thereon to provide a radiation absorbing coating on the exterior side of the panel structure opposite from the operative side thereof. Certain of the flowing fluids are reactant fluids which chemically react with the hot plastic material or condense thereupon to form molecular coatings thereon enhancing the properties thereof as a panel structure.

Abstract: In an extruder with a wide extrusion head and an associated calender, the wide extrusion head defining a sheet extrusion die 16 has an upper extrusion head, part 12 and a lower extrusion head part, which parts can be moved away from one another. At least one clamping device is provided which releasably presses the upper extrusion head part and the lower extrusion head part together and which is mounted in an associated side wall of the calender and is provided with a hydraulically operable piston cylinder drive. In order to achieve optimum clamping of the upper extrusion head part 12 and the lower extrusion head part, each clamping device has a tie rod which, on its one side bears against the lower extrusion head part or the upper extrusion part by means of a fixed abutment, e.g. a nut, or by means of an axially variable abutment e.g. a thrust box 51, which can be driven by a drive nut, the clamping device being mounted on the side wall to be freely movable in the upward and horizontal directions.

Abstract: A roll press includes two coacting rolls arranged to form briquettes by engagement of coacting surfaces having suitable depressions formed therein. Each of the rolls includes a central arbor of polygonal cross section including a plurality of flat faces each having a dovetail slot therein, a plurality of segments each slidably received in a corresponding dovetail slot, and retaining plates on each side of the arbor for engaging the ends of the segments and to limit axial displacement. The mounting arrangement for the retaining plates provides for thermal expansion of the segments in one axial direction. Each segment is mounted in its dovetail slot with a slight space between the inner face of the segment and the bottom wall of the slot so that precise machining of the inner face of the segment and the bottom of the dovetail slot is not necessary. A cooling arrangement is provided which comprises a plurality of spaced axially extending passages connected by diagonal passages.

Abstract: A roller die apparatus includes a pair of cylinder rolls which are rotatably and obliquely yieldably mounted on a frame disposed on the output end of a plastic extruding machine. The rolls are biasedly restrained in the frame to permit the obtusely directed movement thereof with respect to the direction of extruded plastic flow. This non-orthogonal movement of the cylindrical roller members facilitates adjustment and cleaning thereof.

Abstract: Extruder and twin roller calendering plant for producing films or sheets of synthetic plastics or rubber material comprising a pair of calendering rollers mounted in a calender frame and an extruder nozzle head directed into the gap between the pair of calendering rollers, the calender frame being pivotally mounted such that it can be pivoted away from the extruder nozzle head to allow ready access to the extruder nozzle head. The calender frame may be pivotally mounted on the nozzle head and a counter balance weight and/or the drive motor for rollers can be mounted on an opposite side of the pivot to the rollers thereby to counter balance the weight of the rollers.

Abstract: Apparatus for applying a continuous embossing pattern to webs of material such as paper or the like and a method for producing an embossing surface. The apparatus includes rollers which receive a web or webs of such material therebetween and removable embossing plates secured to the surface of the rollers and having an embossing surface for embossing the webs. The rollers are constructed such that they have magnetic properties whereby the embossing plates which are comprised of magnetically attracted material can be held against the roller surface. The plates are positioned in closely adjacent relationship with respect to each other such that they provide a continuous embossing pattern around the surface of the roller. The plates and the rollers also include mutually engaging registering means which permit the plates to be accurately aligned with respect to the roller surface.

Abstract: A noodle making machine for vertical mounting in a kitchen area designed to move and shape a lump of noodle dough into a strip or flat and pass it downward through pairs of rollers having progressively narrower spacing and progressively increasing speed to narrow and stretch the dough prior to introduction into noddle cutting rollers. Roller cleaning and clearing blades, together with funnel type guides, insure downward progress of the dough. The roller speed progression preferably has an exponential relationship to insure proper progress of the dough.

Abstract: An arrangement for controlling the temperature of an arbor-sleeve type roll employed in a rolling process such as in a briquetting machine by transporting temperature control medium to the extremities of the working surface of a removable sleeve by providing in the arbor a system of passageways extending radially and terminating at a point beneath the outer surface of the arbor and by providing in the sleeve a system of interconnecting axially extending passageways. Both of these systems are joined by manifold ring assemblies mounted externally of the roll and which include an expandable bellows which compensate for thermal variation of the roll during the briquetting process. Two other rings, also mounted externally, are connected to the opposite sides of the arbor and sleeve, thereby preventing relative movement between the arbor and sleeve and still permitting the quick removal and replacement of the sleeve.

Abstract: This invention consists of a combined rolling pin and dough cutter. It is made up mainly of a central shaft provided with a handle at each end, and a series of abutting cylindrical rollers, all of the same diameter, rotate freely upon the central shaft to function as a rolling pin. To perform as a dough cutter, a series of circular cutting discs are inserted between the rollers. These discs are of a larger diameter than the rollers, so that their cutting edge extends beyond said rollers. One handle of the shaft is permanently fixed to the shaft while the other handle unscrews from the shaft to allow the insertion of the rollers and discs. One of the handles of the shaft is bored with a longitudinal hole into which is inserted a center pin which is used for cutting circular sections of dough used in pie making.

Abstract: A shim designed for insertion between mold segments on hot briquette rolls permits accurate alignment of the segments and at the same time, by virtue of its softening and melting temperatures permits uniform expansion of the segments on heating.

Abstract: An apparatus for vacuum embossing sheet thermoplastic material which utilizes an endless, seamless structure as the embossing surface. A sheet of heat-softened thermoplastic film is passed over an embossing screen, the embossing screen being supported by a support roll, a drive roll and two seal rolls. A vacuum is applied to the screen between the seal rolls to pull the film into contact with the screen thereby producing an embossed pattern on the film corresponding to the outer surface of the screen. After the film is removed from the endless, seamless screen the film is cooled to set the pattern in the film. The process produces an embossed film which has high strength, low surface gloss or light reflectance, and a deep embossed pattern.

Abstract: A shim designed for insertion between mold segments on hot briquette rolls permits accurate alignment of the segments and at the same time, by virtue of its softening and melting temperatures permits uniform expansion of the segments on heating.