Patent JPS608100Y2 successfully refreshed from Google Patents.
Patent US4646636A successfully refreshed from Google Patents.
US4646636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the drawing in of material webs in rotary presses
Assignee: Wifag Maschinenfabrik AG
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Filing: 1985-12-13
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Granted: 1987-03-03
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Expires: 2005-12-13
Abstract
Abstract For the drawing in of material webs in web-fed rotary presses a driven draw-in element is used which has a finite length extent and which is moved along different, preadjustable draw-in paths. Guides are disposed along the draw-in paths which provide interruptions which improve the accessibility of the printing units of the presses. For the passage through these guideless regions the draw-in element is stiffened.
Inventors
- 👤 Peter Gertsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:47
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/02; B41F13/03
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
169 words
A device for facilitating the drawing in of a web to be printed as it is moved into and out of association between a pressure roller and a plurality of rubber cylinders arranged around the periphery of a pressure roller, comprising a plurality of drawing in paths defined adjacent the pressure roller including a plurality of roller guides over which the web is passed, guide pieces associated with at least some of said roller guides for guiding the web through an interruption path over said rollers, and a draw-in device engageable with the web and movable through said guide pieces which comprises first and second pivotally interconnected members, means for latching said members so that they are stiffened for passing through said guide member, and a deflectable switching lever carried by one of said members and being deflectable as it moves into association with said guide members, the deflection of said switching lever being effective to shift said latching means so as to selectively latch and release said members.
Claim 2
Independent Claim
169 words
A device for facilitating the drawing in of a web to be printed as it is moved into and out of association between a pressure roller and a plurality of rubber cylinders arranged around the periphery of a pressure roller, comprising a plurality of drawing in paths defined adjacent the pressure roller including a plurality of roller guides over which the web is passed, guide pieces associated with at least some of said roller guides for guiding the web through an interruption path over said rollers, and a draw-in device engageable with the web and movable through said guide pieces which comprises first and second pivotally interconnected members, means for latching said members so that they are stiffened for passing through said guide member, and a deflectable switching lever carried by one of said members and being deflectable as it moves into association with said guide members, the deflection of said switching lever being effective to shift said latching means so as to selectively latch and release said members.
Claim 3
Dependent Claim
44 words
A device according to claim 1, wherein said interruption path includes portions which have no guide pieces which form guideless free stretches having a greatest extent which is smaller than the length of said interconnected members when they are held by said latching means.
Claim 4
Dependent Claim
22 words
A device according to claim 2, wherein the beginning of at least one of said guide pieces comprises a funnel shaped member.
Claim 5
Dependent Claim
30 words
A device according to claim 1, wherein at least one of said guide pieces has an adjustable steering device for the selective adjustment of the exit direction of interconnected members.
Claim 6
Dependent Claim
39 words
A device according to claim 1, wherein said interconnected members have a pivotal axis therebetween, said latch comprising a member pivotally carried on one of said members and engageable with the other to hold it in a stiffened condition.
Claim 7
Dependent Claim
30 words
A device according to claim 5, wherein said latching means is moved to automatically stiffen the interconnected members so that they are rigid when they run into said guide means.
Claim 8
Dependent Claim
72 words
A device according to claim 6, wherein one of said interconnected members includes a recess formed between respective sides of an end thereof, a rotatable latch rotatably mounted on the other of said members from said recess and engageable in the recess, said latch being pivotal to extend transversely between the sides of said one member in the recess to hold the member rigid in respect to the other of said members.
Claim 9
Dependent Claim
38 words
A device according to claim 7, including a switching lever carried on the pivot of said latch member and having ends which are deflectable which may pivot to switch said latching member between the latched and unlatched position.
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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) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |