only schematically outlined is accommodated within each support 4 the track 2 includes a recess at one or several suited points within the transport device e g at a point where the transport means 3 are loaded with bobbins 5 a setting means 10 is accommodated for setting the coding means 8 the coding means 8 and the setting means 10 are represented in greater detail in fig2 to 4 the setting means 10 contains a commercially available pneumatic pivoting drive 11 with which a pin 12 can be rotated about an axis of rotation 13 in angular steps which steps can be adjusted in advance and changed in their size a laterally projecting setting finger 14 is fastened to the free end of the pin 12 the pivoting drive 11 the pin 12 and the setting finger 14 are slidingly mounted again pneumatically in a slideway 15 in the direction of the axis of rotation 13 which is fastened in the recess 9 of the track 2 the slideway 15 is disposed in such fashion that the pin 12 with the setting finger 14 can be lowered into the path of the coding means if the transport means 3 is moved into the coding position on the track 2 the coding means 8 contains a code support.