Printing – Selective or progressive – Printing members and inkers
Patent
1988-03-11
1989-04-25
Burr, Edgar S.
Printing
Selective or progressive
Printing members and inkers
101334, 101405, B41J 2700
Patent
active
048236918
ABSTRACT:
A self-inking stamp comprises a base part (1), which contains an ink pad (2) that is opposite to the bottom surface of the base part, a stamp insert, which carries a printing plate (9) and is reciprocable between the ink pad (2) and the bottom surface and is adapted to be inserted at the same time, and an actuating member (3), which has two end legs (4), which are guided on the outside of the end walls (5) of the base part. The actuating member is displaceable toward the bottom surface of the base part against spring force. The ends of a pivot (10) of the stamp insert are movably mounted in the end legs (4) of the actuating member (3) and may be movably mounted in said end legs in slots which extend transversely to the direction in which the actuating member is displaceable. The stamp insert is provided at its ends with longitudinal tracks (14) for receiving respective guide pins (13). The pivot (10) extends through cam slots (12), which are formed in the end walls (5) of the base part, which end walls (5) carry also the guide pins (13). Alternatively, said cam slots (12) are formed in plates (16), which are pivoted to the end walls (5) of the base part (1) and carry the guide pins (13). In order to reduce the stamping stroke, the stamp insert consists of at least two insert members (8), which carry respective printing plate parts (9) and are operable jointly and at the same time. Each insert member (8) cooperates with individually associated camming means (10 to 16) for imparting the inverting movement to that insert member.
REFERENCES:
patent: 438179 (1890-10-01), Quaine
patent: 1670735 (1928-05-01), Mortensen
patent: 3090305 (1963-05-01), Keck
Burr Edgar S.
Kelman Kurt
McDaniel James R.
Walter Just Gesellschaft m.b.H.
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