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Priority to ES1974206992UpriorityCriticalpatent/ES206992Y/en
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Publication of ES206992YpublicationCriticalpatent/ES206992Y/en
Twisting device for thermoplastic filaments, essentially characterized in that it consists of a cylindrical annular body through which axially runs a thermoplastic filament of regular straight section, especially of polygonal shape, with a plurality of prismatic arms, arranged in their internal parts in a radial arrangement. Two roller supporting appendages of diameter and width corresponding to the width of the straight section of the filament, said arms being free to slide in radial direction with respect to the annular body and retained by their outer ends, emerging from said body, by a band elastic housed in grooved notches cut transversely at said ends. (Machine-translation by Google Translate, not legally binding)
ES1974206992U1974-10-161974-10-16
TWISTING DEVICE FOR THERMOPLASTIC FILAMENTS.
ExpiredES206992Y
(en)
Mfr. of tubes with axially spaced radial corrugations - uses circular discs in ends of corrugating cylinder, with axial projections opposite stops on extension sleeve
Perforated spherical pieces for formation of structures based on tubular cylindrical bars. (Machine-translation by Google Translate, not legally binding)