Typewriting device

Printing – Selective or progressive – Bed and platen machines

Patent

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Details

101 9309, B41J 132

Patent

active

039903613

ABSTRACT:
A typewriting device has a type-carrying drum including a plurality of cylinders arranged in end-to-end relationship on the axis of the drum and each carrying a plurality of type elements arranged in spirals. A typewriting paper positioned adjacent to the drum is intermittently fed by feed means for intermittently feeding the paper tangent to the drum. A plurality of hammer members are positioned opposite to the cylinders of the drum for moving toward and away from the drum, the space between the hammers being the same as that between the spirally positioned type elements, and drive means for rotating and axially moving the type-carrying drum, whereby each time each type element passes by its associated hammer member, the hammer member is actuated to effect one typewriting operation on the paper and thereafter, the typewritten paper is intermittently fed.

REFERENCES:
patent: 3128693 (1964-04-01), Thiemann
patent: 3220343 (1965-11-01), Wasserman
patent: 3630335 (1971-12-01), Chamness
patent: 3850097 (1974-11-01), Sweeney

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