Lock system for sealing boundary of two chambers, between which strip metal passes, comprises at least two rollers, at least one of which has core covered with flexible material and with cylindrical central section and widened ends

摘要

Lock system for sealing the boundary of two chambers, between both of which strip metal (4) passes, comprises at least two rollers (5, 6). At least one of these has a core (8) covered with flexible material (7) and with a cylindrical central section (9) and widened ends (11, 12).