Patent US3926111A successfully refreshed from Google Patents.
US3926111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing machine
Assignee: Individual
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Filing: 1974-08-26
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Granted: 1975-12-16
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Expires: 1994-08-26
Abstract
Abstract The invention is concerned with printing machines used for the printing of large overall patterns which are periodically repeated. At present such machines using rotating printing members require the printing members to be of such a size that the circumference thereof corresponds to the total length of the overall repeated pattern. Thus, with overall patterns having very long lengths, the machines are uneconomical in use. The present invention overcomes that disadvantage by providing a printing machine having at least two rotating cylindrical printing members with means for temporarily interrupting the contact of each member with the material to be printed. Thus interruption of the printing process is controlled in accordance with the pattern to be printed and with the portion of each cylinder having therein a printing portion. The individual printing members are rotated at different angular speeds during their individual printing periods and during their individual periods of interruption of contact with the material.
Inventors
- 👤 Walter Bohm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:43
CPC Classifications
B; B41; B41F; B41F15/00; B41F15/08; B41F15/0831; B41F15/0836
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
372 words
A printing machine for repeatedly printing relatively long overall patterns on a web of material, said machine comprising: support means for continuously moving said web of material at a predetermined speed; at least two printing units mounted on the side of said web of material opposite said support means, each of said printing units including a rotatably mounted cylindrical screen, each of said screens having on the periphery thereof a printing sector with leading and trailing edges in the direction of rotation for printing a separate portion of said overall pattern and a non-printing sector; means operatively connected to each of said printing units to lower the screens thereof from a raised position into a lowered position in a predetermined sequence with the leading edge of each said printing sector in contact with said web of material for printing on said web of material the respective portions of said overall pattern when the respective printing sectors of said screens are rotatively aligned with said web of material, and for raising said screens out of contact with said web of material into said raised position after the trailing edge of each said printing sector has contacted said web of material; first drive means operatively connected to each of said screens for continuously imparting a first rotary movement of said screens while said screens are in both said raised and lowered positions, said first rotary movement causing a circumferential rotation of each of said screens at a speed equal to said speed of said web of material; and second drive means operatively connected to each of said screens for imparting a second rotary movement thereto, simultaneous to the application of said first rotary movement, each time said screens are in said raised position, and only when said screens are in said raised position, said second rotary movement being predetermined in accordance with system parameters including the size of said printing and non-printing sectors of said screens, the net of said first and second rotary movements when said screens are in said raised position being such that the leading edges of the printing sectors are in position to be engaged by said web when said screens are lowered by said means for raising and lowering.
Claim 2
Dependent Claim
372 words
A printing machine for repeatedly printing relatively long overall patterns on a web of material, said machine comprising: support means for continuously moving said web of material at a predetermined speed; at least two printing units mounted on the side of said web of material opposite said support means, each of said printing units including a rotatably mounted cylindrical screen, each of said screens having on the periphery thereof a printing sector with leading and trailing edges in the direction of rotation for printing a separate portion of said overall pattern and a non-printing sector; means operatively connected to each of said printing units to lower the screens thereof from a raised position into a lowered position in a predetermined sequence with the leading edge of each said printing sector in contact with said web of material for printing on said web of material the respective portions of said overall pattern when the respective printing sectors of said screens are rotatively aligned with said web of material, and for raising said screens out of contact with said web of material into said raised position after the trailing edge of each said printing sector has contacted said web of material; first drive means operatively connected to each of said screens for continuously imparting a first rotary movement of said screens while said screens are in both said raised and lowered positions, said first rotary movement causing a circumferential rotation of each of said screens at a speed equal to said speed of said web of material; and second drive means operatively connected to each of said screens for imparting a second rotary movement thereto, simultaneous to the application of said first rotary movement, each time said screens are in said raised position, and only when said screens are in said raised position, said second rotary movement being predetermined in accordance with system parameters including the size of said printing and non-printing sectors of said screens, the net of said first and second rotary movements when said screens are in said raised position being such that the leading edges of the printing sectors are in position to be engaged by said web when said screens are lowered by said means for raising and lowering.
Claim 3
Dependent Claim
24 words
A machine as claimed in claim 1, wherein said second rotary movement is in the same direction of rotation as said first rotary movement.
Claim 4
Dependent Claim
27 words
A machine as claimed in claim 1, wherein said second rotary movement is in a direction opposite to the direction of rotation of said first rotary movement.
Claim 5
Dependent Claim
52 words
A machine as claimed in claim 1, wherein said first drive means comprises a main drive shaft rotatably mounted and extending longitudinally of said machine, and drive gearing means operatively interconnected between each of said screens and said main drive shaft for transferring rotation of said main drive shaft to said screens.
Claim 6
Dependent Claim
32 words
A machine as claimed in claim 4, wherein said second drive means comprises an intermittently operable stepping motor operatively connected to each of said drive gearing means of each of said screens.
Claim 7
Dependent Claim
51 words
A machine as claimed in claim 4, wherein said second drive means comprises an additional drive shaft operatively rotatably connected to said main Drive shaft and extending longitudinally of said machine, and Geneva wheel mechanisms operatively connecting said additional drive shaft with said drive gearing means of each of said screens.
Claim 8
Dependent Claim
42 words
A machine as claimed in claim 6, wherein said main drive shaft and said additional drive shaft are driven by gearing means for providing predetermined changeable speed ratios between the rotational speed of said main drive shaft and said additional drive shaft.
Claim 9
Dependent Claim
86 words
A machine as claimed in claim 4, wherein said second drive means comprises an additional drive shaft operatively rotatably connected to said main drive shaft and extending longitudinally of said machine, and a rotary movement storage means operatively connecting said additional drive shaft with said drive gearing means of each of said screens for storing movement of said additional drive shaft when said screens are in said lowered position and transferring the thus stored movement to said screens when said screens are in said raised position.
Claim 10
Dependent Claim
42 words
A machine as claimed in claim 8, wherein said main drive shaft and said additional drive shaft are driven by gearing means for providing predetermined changeable speed ratios between the rotational speed of said main drive shaft and said additional drive shaft.
Claim 11
Dependent Claim
56 words
A machine as claimed in claim 4, wherein said means to lower and raise said screens comprises a control shaft operatively rotatably connected to said main drive shaft and extending longitudinally of said machine, and cam means connected to said control shaft and operatively engaged with said printing units for sequential raising and lowering contact therewith.
Claim 12
Dependent Claim
48 words
A machine as claimed in claim 10, further comprising gearing means interconnecting said main drive shaft and said control shaft for providing a ratio between the rotational speeds of said control shaft to said main drive shaft corresponding to 1:n, wherein n equals the number of said screens.
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |