B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/1040
B29C 55/04 (2006.01) B29C 55/16 (2006.01) B29C 55/20 (2006.01)
Patent
CA 1332492
Apparatus and method for producing a novel drawn film by propelling individual carriages along opposed loops from a first speed abutted in stacks in carriage collection sections to a second speed space apart in a drawing section of a tenter frame and to a third speed in stack forming sections where the carriages return to the first speed in the stacks. First primaries positioned adjacent one part of each loop develop electromagnetic waves for engaging synchronous secondaries attached to active carriages to provide controlled spcing of such carriages, and second primaries adjacent another part of the loop develop other electromagnetic waves for engaging hysteresis secondaries attached to active and to passive carriages to provide controlled abutting of the carriages
603524
Hommes William John
Keegan John Joseph Jr.
Dupont Teijin Films U.s. Limited Partnership
Sim & Mcburney
LandOfFree
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