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US 4,075,945 AGranted
Print medium and assembly
OwnerSiegfried Heinz Bienholzinventor
Life of this patent
Estimating the term…
Abstract
A print medium in the form of a stretchable band on which printing indicia are discretely arranged in linear array. The band may be incorporated in a typewriter or like device, selection of a character being effected by stepwise movement of the band to bring the appropriate indicium to a printing station which is relatively moveable along the printline.
Claims11
A printing apparatus employing a printing assembly comprising:
- a pair of spaced upright shafts, a structure supporting said shafts, one shaft being fixed relative to the structure while the other is laterally displaceable relative to said one shaft in a direction substantially perpendicular to the axes of the shafts;
- a wheel supported on said other shaft and being freely rotatable on said other shaft;
- means for effecting lateral displacement of said other shaft in a direction away from said one shaft to a predetermined position relative to said one shaft;
- a second wheel mounted on said one shaft for rotation therewith;
- and
- a continuous flexible band looped under tension around said wheels and carrying a multiplicity of indicia discretely arranged on the band whereby a discrete representation of the respective indicia can be transposed to a further medium, said band being resiliently extensible to increase the separation of the indicia;
- an upright striker arm for engaging said wheel when the latter is in said predetermined position to thereby displace said wheel a further small distance away from said one shaft;
- means for biasing the striker arm away from said wheel;
- and
- means for momentarily effecting said wheel displacing movement of the striker arm.
7 more elements
A printing apparatus employing a printing assembly comprising:
- a pair of spaced upright shafts, a structure supporting said shafts, one shaft being fixed relative to the structure while the other is laterally displaceable relative to said one shaft in a direction substantially perpendicular to the axes of the shafts;
- a first wheel supported on said other shaft and being freely rotatable on said other shaft;
- means for effecting lateral displacement of said other shaft in a direction away from said one shaft to a predetermined position relative to said one shaft;
- an upright striker arm for engaging said wheel when the latter is in said predetermined position to thereby displace said wheel a further small distance away from said one shaft;
- means for biasing the striker arm away from said wheel;
- means for momentarily effecting said wheel displacing movement of the striker arm;
- a second wheel mounted on said one shaft for rotation therewith;
- and
- a continuous flexible band looped under tension around said wheels and carrying a multiplicity of indicia discretely arranged on the band whereby a discrete representation of the respective indicia can be transposed to a further medium, said band being resiliently extensible to increase the separation of the indicia.
6 more elements
Dependencies are inferred from the claim text.