Single element imprinting assembly with inertially and kinematic

Details Single element imprinting assembly with inertially and kinematic Single element imprinting assembly with inertially and kinematic

1976-03-17

1978-01-03

Sewell, Paul T.

Textiles: fiber preparation

197 50, 197 55, 197 82, 197127R, B41J 160

Patent

active

040661601

ABSTRACT:
A single element imprinting assembly of the disk, cylindrical or spherical type for use in typewriters and the like is provided with a stationary printing assembly having kinematically independent controls for character selection and imprinting movements of the printing element. The stationary printing assembly arrangement avoids the penalty of added moving mass when the mass of the character selection prime mover is increased. For the cylindrical and spherical types, the independent movement is achieved by three separate drive controls such that the axis of the tilt or lift control and the axis of the rotational drive control both perpendicularly intersect the axis of the imprinting drive control at separate points with universal joints or other constant speed couplings being located at each respective intersection thereby allowing independent and concurrent rotation, lift or tilt and imprinting modes of motion to attain higher printing speed. The printing speed is further increased by a multi-speed cam assembly synchronized with the constant-speed imprinting drive control to decrease imprinting delay when a near character is selected.

REFERENCES:
patent: 631833 (1899-08-01), Treadgold
patent: 3389774 (1968-06-01), Barkdoll
patent: 3618736 (1971-11-01), Abell et al.
patent: 3677386 (1972-07-01), Herterich et al.
patent: 3872960 (1975-03-01), Gabor
patent: 3963109 (1976-06-01), Smith

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