FIELD: manufacture of counterfeit-protected valuable securities, in particular, banknotes and documents.
SUBSTANCE: apparatus has lengthwise movable tubular channel formed by set of pipes coaxially arranged in gap-free manner. Thickness h of middle pipe of channel is determined from inequality s<h<0.5 Hmin, where s is thickness of shielding tape to be charged; Hmin is minimum width of shielding tape to be charged. Upper part of middle pipe is provided with longitudinal cut defining shielding tape transportation channel having width comparable with maximum width of shielding tape to be charged. Inlet end of internal pipe is connected through locking valve to compressed air source, and its outlet end is provided with ejector having circular nozzle enclosed in outer pipe. Tip provided at end of external pipe has elastic tab oriented at an acute angle to axis of pipe and provided with tape discharge window positioned above tab base.
EFFECT: increased efficiency by preventing shielding tape from twist.
2 cl, 3 dwg
Authors
Dates
2007-11-10—Published
2006-02-14—Filed