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Priority to AT53168ApriorityCriticalpatent/AT275268B/en
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Publication of AT275268BpublicationCriticalpatent/AT275268B/en
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Verfahren zum Richten langgestreckter Hohlkörper
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Method for straightening elongated hollow bodies
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Claims (1)
oder Rechteck-ProfilrohrePATENTANSPRUCH :
Verfahren zum Richten langgestreckter Hohlkörper, insbesondere für Hohlkörper mit von der Kreisform abweichendem Querschnitt, wie Quadrat-oder Rechteck-Profilrohre, bei dem das Richtgut ohne Drehung um seine Längsachse mittels Treibrollen durch hintereinander angeordnete Richtkörpersätze geführt und dabei bis zum Überschreiten der Fliessgrenze durchgebogen wird, wobei die zum überschreiten der Fliessgrenze erforderliche Biegekraft derart aufgeteilt wird, dass das Richtgut zunächst nur bis nahe der Fliessgrenze durchgebogen und anschliessend die zum überschreiten der
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or rectangular profile tubes PATENT CLAIM:
A method for straightening elongated hollow bodies, in particular for hollow bodies with a cross-section deviating from the circular shape, such as square or rectangular profile tubes, in which the material to be straightened is guided without rotation about its longitudinal axis by means of drive rollers through sets of straightening bodies arranged one behind the other and is bent until the flow limit is exceeded, whereby the bending force required to exceed the flow limit is distributed in such a way that the material to be straightened is initially only bent to near the flow limit and then the amount to be exceeded
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AT53168A1968-01-181968-01-18
Method for straightening elongated hollow bodies
AT275268B
(en)
Device for opening and closing skylight windows or the like. With a wire rope guided in a tube and acting as a pulling and pushing means or other correspondingly flexible means.