Type carrier arrangement for roller printing

Details Type carrier arrangement for roller printing Type carrier arrangement for roller printing

1975-02-24

1977-05-03

Rader, Ralph T.

Printing

Selective or progressive

Printing members

101 77, 197 18, 197 55, B41J 134

Patent

active

040207587

ABSTRACT:
A type carrier arrangement for producing a roller print, which includes a continuously rotating type drum having arranged thereon a plurality of type carriers respectively carrying one type. Each type carrier has one gear segment arranged thereon for producing a rolling print. This print is brought about by a control member in cooperation with a gear segment associated with the printing area and not rotating with the type drum. The gear segment of the type drum includes a guiding section formed by the omission of a tooth. After the gear segment has meshed with the tooth segment designed as inner tooth segment, the guiding section is held by fixing means in the starting position thereof. The control means is designed as pawl controlled to act upon a ratchet tooth on the type carrier shaft so that the gear segment is turned in the direction toward the inner tooth segment. Each type shaft comprises in one cross-sectional plane at least two types offset relative to each other at an angle. The types are adapted by stationary pawls arranged in conformity with the type-offset selectively to be caused to print. The tooth spaces of the inner tooth segments correspond to the total of the number of teeth of the gear segment and the number of teeth of the maximum type-offset.

REFERENCES:
patent: 987372 (1911-03-01), Johnston
patent: 3141402 (1964-07-01), Howard
patent: 3229625 (1966-01-01), Pannier
patent: 3237556 (1966-03-01), Huffman
patent: 3363550 (1968-01-01), Kruger
patent: 3605977 (1971-09-01), Janz et al.
patent: 3772939 (1973-11-01), Burkhardt et al.

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