US3701441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer device for use in cutting units for paper sheets
Assignee: Individual
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Filing: 1971-06-28
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Granted: 1972-10-31
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Expires: 1991-06-28
Abstract
Abstract A cutting unit for paper sheets comprising a conveyor carriage for transferring paper sheets from a vertically displaceable support unto the working table of said cutting unit, by engagement of horn-like extensions provided on said carriage with the amount of sheets to be transferred at each transfer movement of the carriage. To prevent the paper sheets from sliding during transfer and to ensure correct positioning thereof on the carriage so as to avoid improper engagement with the feeder roller advancing the sheets from the conveyor onto the cutting means proper, a counter-holder means is arranged which operates independently of the vertically movable support and is adapted, upon displacement of the conveyor carriage into the stack of sheets, to lift the rear end of said sheets. The counter-holder preferably consists of a plate mounted on arms which are hingedly connected to a frame. Guide means are arranged on the conveyor carriage to cooperate with roller means on the counter-holder to lift it during displacement of the carriage.
Inventors
- 👤 Gustav Ake Bernhard Gadler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:38
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/32; B65H3/322; B65H3/325; B65H31/00; B65H31/32; B65H5/00; B65H5/006; B65H5/04; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/422
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
In a mechanism for cutting paper sheets, said mechanism comprising a vertically displaceable support having a stack of paper sheets to be cut supported thereupon, a working table, a conveyor carriage having a table top and adapted to transfer piles of sheets from said supported stack onto said working table, horn-like extensions arranged on said table top to extend in the direction of said stack, rails inserted in said stack at spaced vertical intervals and having free ends extending therefrom in the direction of said carriage, said horn-like extensions being adapted upon displacement of said carriage toward said stack to engage beneath one of said rails thereby to effect lifting of a pile of said stack of sheets located above said engaged rail, and a rotatably driven feed roller located on said table top between said horn-like extensions, the improvement comprising counter-holder means positionable independently of the vertical movement of said support and adapted upon movement of said carriage toward said stack to engage beneath said pile of sHeets located above said engaged rail at an end thereof opposite said rail and to lift said end of said sheet pile.
Claim 2
Dependent Claim
190 words
In a mechanism for cutting paper sheets, said mechanism comprising a vertically displaceable support having a stack of paper sheets to be cut supported thereupon, a working table, a conveyor carriage having a table top and adapted to transfer piles of sheets from said supported stack onto said working table, horn-like extensions arranged on said table top to extend in the direction of said stack, rails inserted in said stack at spaced vertical intervals and having free ends extending therefrom in the direction of said carriage, said horn-like extensions being adapted upon displacement of said carriage toward said stack to engage beneath one of said rails thereby to effect lifting of a pile of said stack of sheets located above said engaged rail, and a rotatably driven feed roller located on said table top between said horn-like extensions, the improvement comprising counter-holder means positionable independently of the vertical movement of said support and adapted upon movement of said carriage toward said stack to engage beneath said pile of sHeets located above said engaged rail at an end thereof opposite said rail and to lift said end of said sheet pile.
Claim 3
Dependent Claim
35 words
The improvement according to claim 1 comprising guide means located on said conveyor carriage and positioned to engage said counter-holder means to effect lifting thereof upon movement of said carriage to engage said sheet pile.
Claim 4
Dependent Claim
42 words
The improvement according to claim 1 wherein said counter-holder means comprise a plate extending adjacent and parallel to said stack of sheets, and pivotally mounted arms supporting said plate and enabling pivotal motion thereof to engage and lift said sheet pile end.
Claim 5
Dependent Claim
21 words
The improvement according to claim 3 wherein said plate comprises a horizontal flange extending in a direction into said sheet stack.
Claim 6
Dependent Claim
56 words
The improvement according to claim 2 wherein said counter-holder means has roller means mounted thereon and wherein said guide means comprise sloping cam surfaces laterally positioned on the outsides of said horn-like extensions to engage said roller means during movement of said carriage into engagement with said sheet pile for effecting lifting of said counter-holder means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |