Typewriting machines – Including type-set-assemblage mounted on carrier and... – Type-head – per se
Patent
1982-09-22
1985-05-14
Burr, Edgar S.
Typewriting machines
Including type-set-assemblage mounted on carrier and...
Type-head, per se
400134, 74571M, B41J 154
Patent
active
045168679
ABSTRACT:
A marking machine having a printing wheel with printing characters on the periphery of the wheel. Adjustment means are provided for adjusting the rotational position of the wheel with respect to a drive shaft comprising a drive train connecting the printing wheel to the drive shaft. The printing wheel is rotatable with respect to the drive shaft but may be fixed by an intermediate backing plate member which is keyed to the drive shaft. An adjustable eccentric rotatably connected to the printing wheel has an eccentric shaft element fitting in a slot in the backing member to provide rotable adjustment of the printing wheel with respect to the drive shaft. The printing wheel may be slipped on and off the shaft and is secured to the drive shaft by a hub-like handle member having a spring radially biased ball detent receivable within a groove on the end of the drive shaft to facilitate ready connection and removal of the printing wheel. The dimensioning of the groove having camming sides from a stop on the drive shaft firmly biases the printing wheel against the stop.
REFERENCES:
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patent: 4322173 (1982-03-01), Schact
patent: 4347005 (1982-08-01), Lendl
patent: 4363559 (1982-12-01), Suzuki et al.
Burr Edgar S.
Hirabayashi M. J.
Robbins Glenn K.
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