Inking apparatus for printing on non porous surfaces
AssigneeUniversal Fountain Brush Co.
InventorDonald C. Wright, Jr.
Life of this patent
Estimating the term…
Abstract
A cartridge housing is provided for a transfer roll and an abutting ink roll. The housing inner wall is spaced closely around the transfer roll with a discontinuity in an exterior side wall that is only sufficiently wide to permit less than 90 degrees of the transfer roll outer circumference to be exposed at any one time. The exposed portion of the transfer roll abuts a print surface on a print drum. A like discontinuity in the inner housing wall around the transfer roll at a point distal from the exterior wall discontinuity permits contact with an eccentrically mounted rotatable ink roll which supplies a continuous amount of ink to the transfer roll as the transfer roll turns.
Claims22
A cartridge assembly for an ink filled roll and an abutting transfer roll comprising
- a first housing member tightly fitted to a second housing member to form an enclosure for the ink filled roll and the transfer roll,
- corresponding portions of the first and second housing members having a generally annular configuration enclosing the ink filled roll with a first bore axially located within the annular configuration of either the first or second housing member to accommodate a shaft around which the ink filled roll rotates within the first and second housing member enclosure,
- corresponding portions of the first and second housing members having a lateral outwardly projecting portion with respect to the axis of the first bore in the first or second housing members, the projecting portion of the first housing member having an inner wall enclosing and closely spaced from an outer circumference of the transfer roll rotatably located within the projecting portion of the first housing member,
- a drive roll rotatably located exterior to the projecting portion of the first housing member and axially aligned with the transfer roll, the transfer roll rotating in response to the rotation of the drive roll,
- a discontinuity in an exterior side wall of the projecting portion of the first housing member adjacent to the transfer roll and distal from the ink roll to permit exposure of less than 90 degrees of the transfer roll circumference,
- a discontinuity in an interior side wall of the first housing member distal from the discontinuity in the exterior side wall to permit abutment of the transfer roll and ink filled roll within the housing enclosure, and
- the drive roll turning in response to contact with a moving print roll drum.
An inking apparatus comprising,
- a base member supporting a print drum on a vertical shaft,
- a tension apparatus mounted on an arm pivotably supported on the base member,
- a cartridge assembly enclosing an ink filled roll and an abutting transfer roll, the transfer roll mounted on the arm,
- the cartridge assembly having a first housing member tightly fitted to a second housing member to form the enclosure for the ink filled roll and the transfer roll,
- corresponding portions of the first and second housing members having a generally annular configuration enclosing the ink filled roll with a first bore axially located within the annular configuration of either the first or second housing member to accommodate a shaft rotatably supporting the ink filled roll within the cartridge assembly,
- corresponding lateral projecting portions of the first and second housing members adjacent the annular configuration, the projecting portion of the first housing member containing an inner wall closely spaced from an outer circumference of the transfer roll rotatably located within the first housing member,
- a drive roll located exterior to the first housing member and axially aligned with the transfer roll, the transfer roll rotating in response to rotation of the drive roll,
- a discontinuity in an exterior side wall of the first housing member adjacent to the transfer roll and distal from the ink filled roll to permit exposure of less than 90 degrees of the transfer roll circumference,
- a discontinuity in an interior side wall of the first housing member distal from the discontinuity in the exterior side wall to permit abutment of the transfer roll and the ink filled roll within the housing enclosure, and
- the drive roll turning in response to contact with the print drum in a moving mode.
Dependencies are inferred from the claim text.