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US 4,116,129 AGranted
Method for printing combinations of signs in a predetermined number and in an irregular sequence
OwnerUno Arne Ivan Stahl, Nils Magnus Hakanssoninventors
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Abstract
Combinations of signs in a series of a predetermined number of combinations are printed in an irregular sequence by means of printing plates supplied one at a time to a printing station. The sequence of the plates is changed from one print of the series to the other.
Claims3
A method for printing a predetermined number of signs in a plurality of different successive sequences and in an irregular and unpredictable order in each sequence, wherein in each sequence the signs are assembled in a nonrepetitive order that is different from the order in preceding and succeeding sequences, which comprises the steps of
- (a) providing the signs on a number of plates, each plate carrying at least one sign;
- (b) arranging the plates in a first order;
- (c) feeding the plates one at a time to a printing station;
- (d) printing with the plates in the first order at said printing station;
- (e) collecting the plates after the printing, and
- (f) rearranging the plates in a second order different from the first order;
- (g) printing with the plates in the second order;
- (h) continuing to rearrange the plates in each successive sequence to an order different from the order in the preceding and succeeding sequences;
- and printing with the plates in each sequence in an unpredictable order that is nonrepetitive in successive sequences.
6 more elements
Dependencies are inferred from the claim text.