Printing – Selective or progressive – Printing members
Patent
1979-08-30
1981-06-09
Pieprz, William
Printing
Selective or progressive
Printing members
101111, B41K 110, B41J 120
Patent
active
042717590
ABSTRACT:
Printing apparatus comprising a housing having at least two oppositely disposed side walls; a plurality of sets of juxtaposed printing elements; a plurality of internally toothed, annular setting wheels supported with respect to the housing for respectively positioning the printing elements; a hollow, axially shiftable, setting shaft extending at least into the annular setting wheels, the setting shaft including (a) a drive member for engaging the internal teeth of a selected one of the setting wheels and (b) a detenting member; a pin mounted with respect to one of the side walls, the pin extending into the hollow setting shaft and including a plurality of detent recesses longitudinally extending along the surface of the pin, the distance between at least two of the recesses corresponding to the width of at least one of the setting wheels, the detenting member of the setting shaft engaging a selected one of the recesses for axially positioning the setting shaft at the setting wheel to be driven.
REFERENCES:
patent: 660512 (1906-10-01), Humphrey et al.
patent: 2569013 (1951-09-01), Lippard
patent: 3744411 (1973-07-01), Becker
patent: 3968745 (1976-07-01), Hamisch, Jr.
patent: 3972281 (1976-08-01), Sams
patent: 4096800 (1978-06-01), Kistner et al.
patent: 4170938 (1979-10-01), Sato
Baker Joseph J.
Esselte Pendaflex Corporation
Ferguson Jr. Gerald J.
Pieprz William
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