| 摘要 |
FIELD: data processing.SUBSTANCE: group of inventions relates to production of paper rolls. Bushing of paper roll has a recess. Recess has a bottom and a wall and is a groove in end of bushing. Length of groove is equal to length of bushing periphery. Diameter of groove is less than outer diameter of bushing and is greater than inner diameter. Central axis of groove coincides with longitudinal axis of bushing. Tag is placed in recess in a stranded state. Method of making bushing with tag includes making a recess in end of bushing. Tag is placed in recess.EFFECT: protection of tag during entire service life of roll; preventing effect on characteristics of radio signal of tag.9 cl, 16 dwg |
