US3685823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for receiving sheets cut from a web
Assignee: Societe dEtudes de Machines Speciales SA
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Filing: 1970-07-07
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Granted: 1972-08-22
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Expires: 1990-07-07
Abstract
Abstract This apparatus for receiving sheets cut from a web comprises only mechanical means for retarding and braking the successive cut sheets so that they overlap one another before being delivered. This apparatus comprises downstream of the rotary cutter at least one upper cylinder and a lower cylinder, said upper cylinder having on one portion of its outer peryphery at least one peripheral boss having a cylindrical contour, engageable in at least one recess of same radius formed in the lower cylinder.
Inventors
- 👤 Louis Jean Chambon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:44
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/66; B65H29/6609; B65H29/6618; B65H29/6627; B65H29/68
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
206 words
An apparatus for receiving sheets cut from a web by a rotary cutter and forming on a discharge conveyor a sequence of sheets wherein each sheet partially overlaps the preceding one, which comprises, downstream of the rotary cutter, at least one pair of transverse cylinders consisting of an upper cylinder and a lower cylinder forming therebetween a passage engaged with a small clearance by the cut sheets, said upper cylinder comprising on one portion of its outer periphery at least one cylindrical boss coaxial to said upper cylinder, said lower cylinder comprising on the other hand along one fraction of its outer periphery at least one recess formed with a cylindrical bottom surface concentric to said lower cylinder, both cylinders being rotatably driven in opposite directions so that during their movement of rotation the cylindrical boss of the upper cylinder engages tangentially the cylindrical bottom of the recess formed in said lower cylinder and at a same linear speed and in the same direction as the linear speed of said cut sheet, but at a lower speed each time the trailing edge of a cut sheet passes between said cylindrical boss of said upper cylinder and said cylindrical bottom of said recess in said lower cylinder.
Claim 2
Independent Claim
206 words
An apparatus for receiving sheets cut from a web by a rotary cutter and forming on a discharge conveyor a sequence of sheets wherein each sheet partially overlaps the preceding one, which comprises, downstream of the rotary cutter, at least one pair of transverse cylinders consisting of an upper cylinder and a lower cylinder forming therebetween a passage engaged with a small clearance by the cut sheets, said upper cylinder comprising on one portion of its outer periphery at least one cylindrical boss coaxial to said upper cylinder, said lower cylinder comprising on the other hand along one fraction of its outer periphery at least one recess formed with a cylindrical bottom surface concentric to said lower cylinder, both cylinders being rotatably driven in opposite directions so that during their movement of rotation the cylindrical boss of the upper cylinder engages tangentially the cylindrical bottom of the recess formed in said lower cylinder and at a same linear speed and in the same direction as the linear speed of said cut sheet, but at a lower speed each time the trailing edge of a cut sheet passes between said cylindrical boss of said upper cylinder and said cylindrical bottom of said recess in said lower cylinder.
Claim 3
Dependent Claim
37 words
Apparatus according to claim 1, which comprises, upstream and downstream of the passage between the upper cylinder and the lower cylinder, pairs of feed rollers rotatably driven at a tangential speed equal to a same driving speed.
Claim 4
Dependent Claim
124 words
Apparatus according to claim 2, which comprises a drivIng pinion, a train of gears transmitting the drive from said driving pinion to said rotary cutter, another pinion coaxially rigid with one of said cylinders, another train of gears operatively connecting said driving pinion to said pinion coaxially rigid with one of said cylinders, a third train of gears connecting said pinion coaxially rigid with said one cylinder to the feed rollers disposed upstream of said passage between said cylinders, a fourth train of gears operatively connecting said pinion rigid with said one cylinder to the feed rollers disposed downstream of said passage between said cylinders and a pinion coaxially rigid with the other cylinder and meshing with the pinion rigid with said first cylinder.
Claim 5
Dependent Claim
54 words
Apparatus as set forth in claim 2 and comprising a horizontal table disposed with its upstream end downstream of said passage between the two cylinders, and a set of comb teeth rigidly carried by said upstream end and inclined downwards so as to extend into the outlet area of said passage between said cylinders.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |