Numbering machine assembly especially adapted for use with printing machinery
OwnerFrancois Poloinventor
Life of this patent
Estimating the term…
Abstract
At least two numbering machines are connected to be operated simultaneously. Each printing disc in each machine is connected to control an electrical signal in dependence on which of each two consecutive printing faces on said disc is in a position to print. An indicator is provided which compares the signals of the two machines and gives warning if they do not correspond.
Claims16
In a numbering assembly adapted to be inserted in a printing machine, said assembly comprising at least one numbering machine the operation of which is to be checked, said at least one numbering machine having a plurality of rotatably mounted printing discs, each disc having a plurality of printing faces, adapted to be brought successively into a printing position as said disc rotates, the improvement according to which said assembly also comprises
- at least one monitoring numbering machine having printing discs connected to rotate in synchronism with those of said at least one numbering machine to be checked, each printing disc of said monitoring machine having the same number of printing faces as the discs of said numbering machine to be checked, and each disc of each machine being connected to produce a signal when a printing face is in printing position,
- and indicating means responsive to said signals for producing an error signal when at least one of the discs of the machine to be checked occupies an angular position different from that of the corresponding disc of said monitoring machine.
Dependencies are inferred from the claim text.