|
(11) | EP 0 728 693 A3 |
(12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||
(54) | An apparatus for transporting a web through stations of a working plant |
(57) A web of plastic or cardboard material is to be transported through a number of working
stations such that cards to be produced from said web are properly aligned in each
of the stations. For this purpose, the web is releasably coupled with a carrier tape
which is stepwisely moved across the stations, the alignment accuracy being defined
by series of equidistant perforations cooperating with sprocket drums. The rotation
angle of the drums is predetermined by the number of pulses supplied to stepping motors
driving the drums. |