US3742850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Registration adjustment mechanism
Assignee: Faustel Inc
•
Filing: 1972-04-17
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Granted: 1973-07-03
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Expires: 1992-04-17
Abstract
Abstract A printing press roll is driven by a drive shaft by means of a drive mechanism. The latter is adjustable, first, to change the phase relation between the press roll and the drive shaft and, second, to move the roll axially. Both adjustments are used to achieve proper registration between the press roll and a web moving through the press. The adjustable drive mechanism comprises a cylindrical pilot ring rigidly secured to the press roll and a hollow cylindrical register ring slidably mounted on the pilot ring. A first spur gear is attached to the register ring and is in constant mesh (and sliding relationship) with a second spur gear driven by the drive shaft. Inwardly projecting teeth on the register ring engage spiral grooves on the surface of the pilot ring. Means are provided to axially move the register ring and thereby change the phase relation between the press roll and drive shaft. Means are also provided to simultaneously move both the register ring and pilot ring axially and thereby move the press roll axially without causing a phase change.
Inventors
- 👤 C Sedlak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:29
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/08; B41F13/10; B41F13/12; B41F13/14; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1956; Y10T74/19565
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
249 words
In a machine: a support frame, a roll mounted for rotation on said frame and also axially movable with respect thereto, a machine drive shaft for driving a drive gear for ultimately driving said roll, registration adjustment means connected between said drive gear and said roll, said registration adjustment means being adjustable to effect a phase change of said roll with respect to said drive gear and being adjustable to axially move said roll with respect to said frame, said registration adjustment means comprising, a cylindrical pilot ring secured to said roll, a hollow cylindrical register ring surrounding said pilot ring, a gear secured to said register ring and in constant mesh and slidable engagement with said drive gear, first and second gear means on said register ring and said pilot ring, respectively, to effect rotation of said pilot ring and said roll as said register ring is moved axially with respect to said pilot ring, and means to effect axial movement of said register ring to effect a phase change and means to effect simultaneous axial movement of said pilot ring and said register ring to effect axial movement of said roll with respect to said frame, said means to effect axial movement of said register ring comprising, a movable phase adjustment yoke having a member in engagement with said register ring and wherein said means to effect axial movement of said roll comprises a roll position adjustment yoke having a member in engagement with said pilot ring.
Claim 2
Dependent Claim
249 words
In a machine: a support frame, a roll mounted for rotation on said frame and also axially movable with respect thereto, a machine drive shaft for driving a drive gear for ultimately driving said roll, registration adjustment means connected between said drive gear and said roll, said registration adjustment means being adjustable to effect a phase change of said roll with respect to said drive gear and being adjustable to axially move said roll with respect to said frame, said registration adjustment means comprising, a cylindrical pilot ring secured to said roll, a hollow cylindrical register ring surrounding said pilot ring, a gear secured to said register ring and in constant mesh and slidable engagement with said drive gear, first and second gear means on said register ring and said pilot ring, respectively, to effect rotation of said pilot ring and said roll as said register ring is moved axially with respect to said pilot ring, and means to effect axial movement of said register ring to effect a phase change and means to effect simultaneous axial movement of said pilot ring and said register ring to effect axial movement of said roll with respect to said frame, said means to effect axial movement of said register ring comprising, a movable phase adjustment yoke having a member in engagement with said register ring and wherein said means to effect axial movement of said roll comprises a roll position adjustment yoke having a member in engagement with said pilot ring.
Claim 3
Dependent Claim
47 words
A machine according to claim 1 wherein said means to effect axial movement of said register ring comprises a motor mounted on said roll position adjustment yoke and having a motor drive shaft for moving said phase adjustment yoke with respect to said roll position adjustment yoke.
Claim 4
Dependent Claim
41 words
A machine according to claim 2 including resilient means interconnecting said yokes whereby movement of said roll position yoke effects corresponding movement of said other yoke and whereby movement of said other yoke allows said roll position yoke to remain stationary.
Claim 5
Dependent Claim
28 words
A machine according to claim 3 wherein said drive gear driven by said machine drive shaft and said gear secured to said register ring are both spur gears.
Claim 6
Dependent Claim
29 words
A machine according to claim 4 which is a web printing press and wherein said roll is a printing roll for operating on a web movable through said press.
Claim 7
Dependent Claim
43 words
A machine according to claim 5 wherein said first gear means on said register ring comprises a plurality of gear teeth and wherein said second gear means on said pilot ring comprises a corresponding plurality of helical grooves engaged with said gear teeth.
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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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |