US4376531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for transporting sheets on printing machines
Assignee: Heidelberger Druckmaschinen AG
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Filing: 1980-01-30
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Granted: 1983-03-15
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Expires: 2000-01-30
Abstract
Abstract Device for transporting sheets on printing machines having a rejector shaft driven in rhythm with a flow of sheets, the rejector shaft carrying cams for deflecting the sheet ends downwardly to form an overlapping, fish-scalelike flow of the sheets including a belt drive for the rejector shaft and means for adjusting the belt drive so as to vary the instant of movement of the cams relative to the flow of sheets.
Inventors
- 👤 Anton Breunig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:09
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/66; B65H29/6609; B65H29/6618; B65H29/6627; F; F16; F16H; F16H7/00; F16H7/08; F16H2007/0863; F16H2007/0874; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2033; Y10T83/2037; Y10T83/2042
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
Device for transporting sheets on printing machines having a rejector shaft driven in rhythm with a flow of sheets, the rejector shaft carrying cams for deflecting the sheet ends downwardly to form an overlapping, fish-scalelike flow of the sheets comprising a belt drive for the rejector shaft, and means for adjusting said belt drive so as to vary the instant of movement of the cams relative to the flow of sheets, said adjusting means comprising a swivelable double-arm lever disposed between a driving belt strand and a driven belt strand of said belt drive, respective rollers mounted on the arms of said double-arm lever and engageable with both of said belt strands for deflecting said belt strands, and an adjusting spindle engaging one of the arms of said double-arm lever.
Claim 2
Dependent Claim
130 words
Device for transporting sheets on printing machines having a rejector shaft driven in rhythm with a flow of sheets, the rejector shaft carrying cams for deflecting the sheet ends downwardly to form an overlapping, fish-scalelike flow of the sheets comprising a belt drive for the rejector shaft, and means for adjusting said belt drive so as to vary the instant of movement of the cams relative to the flow of sheets, said adjusting means comprising a swivelable double-arm lever disposed between a driving belt strand and a driven belt strand of said belt drive, respective rollers mounted on the arms of said double-arm lever and engageable with both of said belt strands for deflecting said belt strands, and an adjusting spindle engaging one of the arms of said double-arm lever.
Claim 3
Dependent Claim
36 words
Device according to claim 1 in combination with a cross-cutter having a rotary shaft, wherein said belt drive is a serrated transmission belt connecting the rotary cross-cutter shaft to the rejector shaft for driving the latter.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |