Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Forming continuous work followed by cutting
Patent
1977-04-12
1978-04-11
Kucia, Richard R.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Forming continuous work followed by cutting
156138, 156140, 264151, 264229, 264231, 264281, B29D 2900
Patent
active
040838382
ABSTRACT:
A continuous process for making endless toothed belts using a reinforced toothed belt preform of indefinite length by spirally winding the preform around toothed wheels spaced a variable distance while fusing the spiral wraps into a belt tube. One of the wheels forms a closed arc shaped mold chamber sealed toward the outside by a molding belt with one end of the chamber sealingly closed by the entering length with the laterally exiting flexible length or tube advancing axially through the other end and cut to the desired width to form individual belts. The circumferential length is varied by varying the distance between the wheels. The preform can be accurately formed from an unfinished belt by fusing around the fixed radial distance supported reinforcement using wheels in cooperation with a closed chamber prior to forming the tube.
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Becker Walter
BRECO Kunststoffverarbeitungs-GmbH & Co. KG
Kucia Richard R.
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