US3792658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary printing machine with stop members for cylinder adjustments
Assignee: Colodense Ltd
•
Filing: 1972-02-15
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Granted: 1974-02-19
•
Expires: 1992-02-15
Abstract
Abstract The plate roller of a printing machine is urged at each end towards its operative position in contact with the impression roller. Detachable stop members of preselected size are provided at each end to limit the forward movement of the plate roller at its operative position. At each end various sizes of stop members can be provided on a carrier arranged to move them individually into position. The stop members can act between pairs of abutments and counter abutments, at least one of which is movable to provide fine adjustment. Screw adjustments, optionally remotely controlled, can be provided for final adjustment of the position of each end of the plate roller. A similar arrangement is provided for determining the position of the transfer roller in relation to the plate roller.
Inventors
- 👤 D Shore
- 👤 D Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/08; B41F13/20
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
251 words
A printing machine comprising a frame, an impression cylinder rotatably mounted with said frame, and at least one printing station comprising a first pair of spaced apart slidable members carried by said frame and a plate roller mounted at each end thereof to a respective one of said first pair of slidable members and movable therewith towards and away from the impression cylinder, first urgiNg means acting upon each of said first pair of slidable members for urging the respective end of the plate roller towards the impression roller, first replaceable stop means of non-adjustable predetermined size associated with said frame and each of said first pair of slidable members so as to limit the movement of each end of the plate roller towards the imprssion cylinder at substantially the operative position for the plate roller, a second spaced apart pair of slidable members carried respectively by the first pair of slidable members, a transfer roller mounted at each end thereof to a respective one of said first pair of slidable members and therewith towards and away from the plate roller, second urging means acting on each second slidable member for urging each end of the transfer roller towards to plate roller, second replaceable stop means of nonadjustable predetermined size associated with said first pair of slidable members and said second pair of slidable members so as to limit the movement of each end of said transfer roller towards the plate roller at substantially the operative position for said transfer roller.
Claim 2
Dependent Claim
251 words
A printing machine comprising a frame, an impression cylinder rotatably mounted with said frame, and at least one printing station comprising a first pair of spaced apart slidable members carried by said frame and a plate roller mounted at each end thereof to a respective one of said first pair of slidable members and movable therewith towards and away from the impression cylinder, first urgiNg means acting upon each of said first pair of slidable members for urging the respective end of the plate roller towards the impression roller, first replaceable stop means of non-adjustable predetermined size associated with said frame and each of said first pair of slidable members so as to limit the movement of each end of the plate roller towards the imprssion cylinder at substantially the operative position for the plate roller, a second spaced apart pair of slidable members carried respectively by the first pair of slidable members, a transfer roller mounted at each end thereof to a respective one of said first pair of slidable members and therewith towards and away from the plate roller, second urging means acting on each second slidable member for urging each end of the transfer roller towards to plate roller, second replaceable stop means of nonadjustable predetermined size associated with said first pair of slidable members and said second pair of slidable members so as to limit the movement of each end of said transfer roller towards the plate roller at substantially the operative position for said transfer roller.
Claim 3
Dependent Claim
15 words
A printing machine according to claim 1 wherein said urging means are fluid operated cylinders.
Claim 4
Dependent Claim
98 words
A printing machine according to claim 1 in which each first replaceable stop member lies between a first abutment connected in fixed relationship to a bearing for an end of the plate roller and a first counter abutment connected in fixed relationship to a bearing for a corresponding end of the impression cylinder, and each second replaceable stop member lies between a second abutment connection in fixed relationship to a bearing for an end of the transfer roller and a second counter abutment connected in fixed relationship to a bearing for a corresponding end of the plate roller.
Claim 5
Dependent Claim
38 words
A printing machine according to claim 3 wherein at least one of said pair of said abutment and counter abutment is a screw member to provide fine adjustment for the operative positions of the plate and transfer rollers.
Claim 6
Dependent Claim
20 words
A printing machine as claimed in claim 4, in which each screw member adjusts the position of a counter abutment.
Claim 7
Dependent Claim
18 words
A printing machine as claimed in claim 4, in which each screw member is operated by remote control.
Claim 8
Dependent Claim
23 words
A printing machine as claimed in claim 4, in which the screw member is arranged for step-wise movement through discrete increments of arc.
Claim 9
Dependent Claim
38 words
A printing machine as claimed in claim 3, in which the first and second abutments are mounted on rods carried by the first and second slidable members respectively and extending in a direction away from the impression cylinder.
Claim 10
Dependent Claim
82 words
A printing machine as claimed in claim 8 in which the urging means for the plate roller and the transfer roller are fluid operated cylinders, and the rod carrying the first abutment is a rearwardly extending portion of a piston rod of an operating cylinder mounted in fixed relationship to the frame member, and the rod carrying the second abutment is a rearwardly extending portion of a piston rod of an operating cylinder mounted in fixed relationship to a second slidable member.
Claim 11
Dependent Claim
72 words
A printing machine as claimed in claim 8, in which each replaceable stop member is a tube fitted over the rearwardly extending portion of the rod, and the respective abutment is a releasable fastener of a size larger than the bore of the tube for retaining the tube on the rod and for arresting the forward motion of the rod when the tube is trapped between the fastener and the counter abutment.
Claim 12
Dependent Claim
52 words
A printing machine as claimed in claim 1, in which each replaceable stop member is a bar of preselected length, arranged to extend in the direction of travel of the respective slidable member and to limit its forward movement by engagement of one end of the bar with a relatively moving abutment.
Claim 13
Dependent Claim
36 words
A printing machine as claimed in claim 11, in which a plurality of bars of different preselected lengths are provided on a carrier adapted to allow individual bars to be sleCtively brought into an operative position.
Claim 14
Dependent Claim
34 words
A printing machine according to claim 12, in which the carrier comprises a turret rotatably mounted to the machine so that on rotation thereof any selected bar can be brought to the operative position.
Claim 15
Dependent Claim
19 words
A printing machine according to claim 12 wherein the carrier is a band to which the bars are secured.
Claim 16
Dependent Claim
19 words
A printing machine according to claim 14 wherein the band is in the form of a semi-rigid closed loop.
Claim 17
Dependent Claim
136 words
In combination with a rotary printing press having slidable frame means for rotatably supporting a removable printing plate cylinder, and a co-operating cylinder of the press and enabling relative reciprocation therebetween in a direction generally perpendicular the rotational axis thereof, a set of at least two printing plate cylinders of different diameters for selective operative association with said frame means and said co-operating cylinder, means connected with said frame means for selectively urging said co-operating cylinder and the selected operative one of said set of printing plate cylinders toward each other, and a set of selectively operable stop members correlated with said set of printing press cylinders selectively operable to limit the reciprocation and define the operative spacing between said cylinders to the correct spacing for the selected one of said set of printing plate cylinders.
Claim 18
Dependent Claim
136 words
In combination with a rotary printing press having slidable frame means for rotatably supporting a removable printing plate cylinder, and a co-operating cylinder of the press and enabling relative reciprocation therebetween in a direction generally perpendicular the rotational axis thereof, a set of at least two printing plate cylinders of different diameters for selective operative association with said frame means and said co-operating cylinder, means connected with said frame means for selectively urging said co-operating cylinder and the selected operative one of said set of printing plate cylinders toward each other, and a set of selectively operable stop members correlated with said set of printing press cylinders selectively operable to limit the reciprocation and define the operative spacing between said cylinders to the correct spacing for the selected one of said set of printing plate cylinders.
Claim 19
Dependent Claim
78 words
Combination defined in claim 16 wherein said frame means comprises a first pair of spaced apart frame members for rotatably supporting the ends of the selected one of said set of printing plate cylinders and a second pair of spaced apart frame members for rotatably supporting the ends of said co-operating cylinders operatively structurally associated with a respective one of said first set of frame members for relative slidable movement therebetween enabling radial relative movement between said cylinders.
Claim 20
Dependent Claim
25 words
Combination defined in claim 17 wherein said urging means comprise a pair of fluid operated cylinders connected between each respective set of associated frame members.
Claim 21
Dependent Claim
57 words
Combination defined in claim 18 further comprises an opposed set of abutment means carried respectively by each of said frame members for selective disposition of a selected stop member therebetween, and at least one abutment means of each opposed set being provided with adjustment means for enabling minor operating adjustment of the relative position of said cylinders.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |