US4076231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for trimming signatures
Assignee: Koenig and Bauer AG
•
Filing: 1976-11-30
•
Granted: 1978-02-28
•
Expires: 1996-11-30
Abstract
Abstract An apparatus for use in trimming the edges of folded signatures produced in web-fed rotary printing presses is disclosed. The signatures, which may exit from the printing press folder in an overlapping array, are supported from below by a conveyor belt or belts and are held from above by coacting hold-down belts. The signatures so positioned are moved past rotating chipping or cutting tools which remove excess material from the edges of the signatures. Either one or two chipping or cutting tools can be used and the apparatus is capable of trimming without reducing the production speed of the press which may be in the range of 40,000 signatures/hour.
Inventors
- 👤 Willi Albert Peter Kutzner
- 👤 Georg Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:04
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/54; B41F13/56; B41F13/58; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/934; Y10T; Y10T83/00; Y10T83/202; Y10T83/2033; Y10T83/2037; Y10T83/2042
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
An apparatus for trimming at least a first edge from each one of a plurality of folded signatures while in an overlapped array, said folded signatures being produced in a web-fed rotary printing press, said apparatus comprising: a generally planar support table, said table including at least one bottom conveyor belt and at least one top conveyor belt, said bottom and top belts receiving said folded signatures therebetween in said overlapped array from the press and carrying said signatures along said table; means for causing downward pressure on said at least one top conveyor belt to press said overlapped array of signatures against said bottom conveyor belt; and at least a first rotating trimming tool carried on said table, said trimming tool contacting said first edge portion of each said signature to trim each said signature as said signatures are moved past said trimming tool in said overlapped array.
Claim 2
Independent Claim
149 words
An apparatus for trimming at least a first edge from each one of a plurality of folded signatures while in an overlapped array, said folded signatures being produced in a web-fed rotary printing press, said apparatus comprising: a generally planar support table, said table including at least one bottom conveyor belt and at least one top conveyor belt, said bottom and top belts receiving said folded signatures therebetween in said overlapped array from the press and carrying said signatures along said table; means for causing downward pressure on said at least one top conveyor belt to press said overlapped array of signatures against said bottom conveyor belt; and at least a first rotating trimming tool carried on said table, said trimming tool contacting said first edge portion of each said signature to trim each said signature as said signatures are moved past said trimming tool in said overlapped array.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1, wherein said trimming tool is a milling disk cutter.
Claim 4
Dependent Claim
20 words
The apparatus of claim 2 wherein said milling disk cutter has a cutting speed of between 30 and 120 m/sec.
Claim 5
Dependent Claim
35 words
The apparatus of claim 1 further wherein at least one ballast cylinder is said means for causing said pressure on said at least one top conveyor belt to press said top belt against said signatures.
Claim 6
Dependent Claim
36 words
The apparatus of claim 1 further wherein a second trimming tool is carried on said table, said second trimming tool being spaced from said first trimming tool and contacting a second edge of each said signature.
Claim 7
Dependent Claim
28 words
The apparatus of claim 1 wherein said trimming tool extends partially into an aperture in said table, an edge portion of said aperture forming a counter cutting blade.
Claim 8
Dependent Claim
13 words
The apparatus of claim 1, wherein said trimming tool is a saw disk.
Claim 9
Dependent Claim
19 words
The apparatus of claim 3 wherein said saw disk has a cutting speed of between 30 and 120 m/sec.
Claim 10
Independent Claim
105 words
A method of trimming at least one edge portion of each one of an overlapped array of folded signatures produced in a web-fed rotary printing press, said method comprising: receiving said overlapped array of folded signatures from said printing press on conveying means; holding said overlapped array of folded signatures on said conveying means from above and below; conveying said overlapped array of folded signatures past at least one rotating trimming wheel; and trimming said at least one edge portion of each of said folded signatures while said signatures are in said overlapped array, whereby each said signature is trimmed while in said overlapped array.
Claim 11
Independent Claim
105 words
A method of trimming at least one edge portion of each one of an overlapped array of folded signatures produced in a web-fed rotary printing press, said method comprising: receiving said overlapped array of folded signatures from said printing press on conveying means; holding said overlapped array of folded signatures on said conveying means from above and below; conveying said overlapped array of folded signatures past at least one rotating trimming wheel; and trimming said at least one edge portion of each of said folded signatures while said signatures are in said overlapped array, whereby each said signature is trimmed while in said overlapped array.
References Cited (Backward Citations)
US3884102A
Cited
US3948504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |