Abstract:
A method for sequentially producing lap planks (1) from a continuous extruded member (35) of plastics material comprises forming a tongue (30) on a first end (2) of the lap plank (1) and a groove (32) on the opposite second end (3) of the lap plank (1), so that a plurality of the lap planks (1) can be joined in end-to-end abutting relationship with the tongue (30) of each lap plank engaged in the groove (35) of an adjacent lap plank (1). The tongue (30) of each lap plank (1) is formed by an indent (34) formed in a front surface (6) of the extruded member (35) to form one surface of the tongue (30), and the other surface of the tongue (30) is formed by machining material from the rear surface (5) of the extruded member (35) adjacent the indent (34). In the sequential production of the lap planks (1), the groove (35) is formed in an end (80) of the elongated member (35) from which the just formed lap plank (1) has been severed, and the tongue of that next to be formed lap plank (1) is then formed.
Abstract:
The invention relates to an improved method of cold forming a shaped foam article from a foam having a vertical compressive balance equal to or greater than 0.4 and one or more pressing surface and articles thereof. The improvement comprises the use of a stamping press to form the shaped foam article. Preferably, the stamping press is operated by mechanical or hydraulic means. The shaped foam article may be shaped on one or more surfaces.
Abstract:
A method is provided for connecting an upwardly extending member (23) to a support member (10, 12), comprising the steps of providing a substantially rigid support member (10, 12), and then extruding plastics material to form a hollow component (23) which will comprise the upwardly extending member, and then forcing the members together such that the hollow component slides over the support member, the hollow member (23) being such that it deforms elastically as it moves relatively over the base member (10, 12), such that the two members are secured together by a combination of interference fit, and the elastic gripping of the support member (10, 12) by the upwardly extending member (23).
Abstract:
Die Erfindung betrifft eine Extrusionsanlage für die Herstellung von zylindrischen Halbzeugen aus Kunststoff, mit einem Extruder (1) zum Bereitstellen einer mit Druck beaufschlagten Schmelze des Kunststoffes, mit mindestens einem am Extruder (1) angeordneten Extrusionswerkzeug (7), durch welches die Schmelze als im Wesentlichen zylindrischer Kunststoffstrang (8) aus dem Extruder (1) austritt, mit einer dem Extrusionswerkzeug (7) nachgeschaltete, von dem frisch extrudierten Kunststoffstrang (8) durchfahrene Kalibrierung (2), welche den Kunststoffstrang (8) kühlt und ihm einen Außendurchmesser (d) aufprägt, mit einer der Kalibrierung (2) nachgeschalteten Bremseinrichtung (3), mittels welcher in den Kunststoffstrang (8) eine seinem Vorschub entgegen gerichtete Axialkraft (A) veränderlich einbringbar ist, und mit einem Kraftaufnehmer (9), welcher die von der Bremseinrichtung (3) in den Kunststoffstrang (8) eingebrachte Axialkraft (A) misst. Ihr liegt die Aufgabe zu Grunde eine derartige Extrusionsanlage so weiterzubilden, dass sie eine bessere Regelgüte erreicht und sich für die Verarbeitung hochwarmfester Kunststoffe eignet. Gelöst wird diese Aufgabe dadurch, dass die Bremseinrichtung (3) mindestens eine radial zum Kunststoffstrang (8) beweglich geführte, mit einer Reibfläche (19) versehene Bremsbacke (16) erhält, wobei zum Einbringen der Axialkraft (A) in den Kunststoffstrang (8) die radial beweglich geführte Bremsbacke (16) bei am Umfang des Kunststoffstranges (8) anliegender Reibfläche (19) mit einer Radialkraft (R) beaufschlagbar ist, und wobei die Reibfläche (19) die Gestalt eines rinnenförmigen Ausschnittes eines Zylindermantels aufweist.
Abstract:
A teat comprising a body defined by a flexible wall is disclosed. The wall of the teat has a pocket to receive a substance so as to alter the flexibility of the wall in a region of the pocket.
Abstract:
The invention relates to a weather-stripping seal production system comprising one extruder (2), the pulling mechanism (14) embodied to enable a continuous and regular movement along the work flow of the weather-stripping seal (4), which has been produced in the extruder (2) and on which no ducts (5) have been opened, at least one duct opening mechanism (6) positioned on the work flow of the weather-stripping seal (4) in order to open ducts (5) on the said weather- stripping seal (4).