Printing – Selective or progressive – Rotary machines
Patent
1977-09-14
1979-12-18
Coven, Edward M.
Printing
Selective or progressive
Rotary machines
101235, B41L 4746
Patent
active
041788478
ABSTRACT:
High speed printing endorsing apparatus of modular construction capable of automatically printing both fixed and variable information simultaneously upon items fed to said apparatus in a continuous uninterrupted stream of items. Differential gearing and a wrap spring clutch in combination with a cam and follower concentric with the main drive shaft of the apparatus provide means for automatic item batch consecutive number advance by means of relative motion between the cam the printing apparatus. The item batch printing device is demountably removable permitting alteration of the fixed information while the vertical position of the batch printing relative to the item information field format is alterable at will. Automatic means is provided for loading and unloading the print head inking assembly against the print head so as to avoid any bleeding of the inking mechanism when not in use. Automatic means is provided for exposing the print head in the "ready for print" position and for retracting the print head to a "store" position. Simultaneously a shield is automatically placed across the opening in the document track when the print head is retracted to said "store" position. The shield is automatically removed from the opening in the document track to be occupied by the print head in the "ready for print" position.
REFERENCES:
patent: 2636436 (1953-04-01), Mann
patent: 2723621 (1955-11-01), Payne
patent: 2743671 (1956-05-01), Weber et al.
patent: 3037447 (1962-06-01), Gonzalez et al.
patent: 3537393 (1970-11-01), Hegi
patent: 3641933 (1972-02-01), Tafel
patent: 3734011 (1973-05-01), Williams
patent: 3791294 (1974-02-01), Skelding et al.
patent: 3815497 (1974-06-01), Wallace
patent: 4023489 (1977-05-01), Beery
patent: 4036127 (1977-07-01), Speicher
Burroughs Corporation
Coven Edward M.
Fissell, Jr. Carl
Peterson Kevin R.
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