G - Physics – 07 – B
Patent
G - Physics
07
B
219/26
G07B 3/00 (2006.01) B41K 3/48 (2006.01) B41K 3/62 (2006.01) B41K 3/64 (2006.01) G07B 1/00 (2006.01) G07B 5/02 (2006.01) G07B 5/10 (2006.01)
Patent
CA 1318887
A B S T R A C T The present invention relates to a system for issuing tickets and including means for delivering a warning signal when the remaining stock of paper falls below a given number of tickets. To do this, a strip (6) has a special mark on it together reference marks delimiting a length of strip corresponding to one ticket. A sensor (24) detects the passage of the special mark and loads a counter (40). Each time a reference mark goes past the sensor, the contents of the counter (40) is decremented. When a comparator (42) detects that the contents of the counter has reached a predetermined value, it delivers the warning signal.
552820
Schlumberger Industries
Smart & Biggar
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