US3592403A — Apparatus for replacing cores and severing webs i…

Claim 1

Independent Claim 192 words

In a core-exchanging apparatus associated with a multiple winding machine operating with high-speed web feed, the improvement comprising, A. a first shaft means adapted to axially engage an empty or first core at its ends and to rotatably hold the latter upstream of a second core on which said web is being wound, B. a movable first frame adapted to assume an operative and an inoperative position, C. a first pressurE roll continuously rotatably urged against said first core when the latter is in a position as defined under (A), D. a second and a third pressure roll rotatably carried by said first frame and E. a knife mechanism carried by said first frame including a severing knife adapted to travel transversally of said web; said first, second and third pressure rolls, when said first frame is in its said operative position, engaging said first core and constituting a three-point support therefore and causing said web to be trained thereabout; said knife, when said first frame is in its said operative position, adapted to sever, during the course of its transverse travel in a cutting direction, said web on said empty core.

Claim 2

Dependent Claim 192 words

In a core-exchanging apparatus associated with a multiple winding machine operating with high-speed web feed, the improvement comprising, A. a first shaft means adapted to axially engage an empty or first core at its ends and to rotatably hold the latter upstream of a second core on which said web is being wound, B. a movable first frame adapted to assume an operative and an inoperative position, C. a first pressurE roll continuously rotatably urged against said first core when the latter is in a position as defined under (A), D. a second and a third pressure roll rotatably carried by said first frame and E. a knife mechanism carried by said first frame including a severing knife adapted to travel transversally of said web; said first, second and third pressure rolls, when said first frame is in its said operative position, engaging said first core and constituting a three-point support therefore and causing said web to be trained thereabout; said knife, when said first frame is in its said operative position, adapted to sever, during the course of its transverse travel in a cutting direction, said web on said empty core.

Claim 3

Dependent Claim 37 words

An improvement as defined in claim 1, wherein said severing knife is pivotable about an axis contained in its cutting plane, said knife includes a cutting point located behind said axis when viewed in said cutting direction.

Claim 4

Dependent Claim 52 words

An improvement as defined in claim 2, wherein said knife mechanism includes A. a carriage adapted to travel transversally of said web, B. a bearing member secured to said carriage, C. a holder held in said bearing member and pivotable about said axis and D. said severing knife affixed to said holder.

Claim 5

Dependent Claim 17 words

An improvement as defined in claim 3, including means for adjusting said severing knife along said axis.

Claim 6

Dependent Claim 29 words

An improvement as defined in claim 4, wherein said means for adjusting said severing knife along said axis is a threaded engagement between said bearing member and said carriage.

Claim 7

Dependent Claim 41 words

An improvement as defined in claim 1, including means for directing a fluid stream through at least one of said second and third pressure rolls onto said first core immediately downstream of the transverse path of travel of said severing knife.

Claim 8

Dependent Claim 78 words

An improvement as defined in claim 6, wherein at least one of said second and third pressure rolls surrounds a coaxial, stationary and angularly adjustable hollow axle provided with a radial passage extending substantially over the length of said axle; the pressure roll surrounding said hollow axle is provided with a plurality of openings along its entire circumference; said fluid stream adapted to enter said hollow axle axially, and to pass through said openings from said radial passage.

Claim 9

Dependent Claim 40 words

An improvement as defined in claim 1, wherein said first pressure roll is arranged upstream of said second and third pressure rolls, said first pressure roll is rotatably held in a second movable frame yieldingly urged towards said first core.

Claim 10

Dependent Claim 42 words

An improvement as defined in claim 1, wherein said first pressure roll is arranged upstream of said second and third pressure rolls and is provided with perforations to vent the air trapped between said first pressure roll and said web trained thereabout.

Claim 11

Dependent Claim 31 words

An improvement as defined in claim 8, wherein said second frame carries a motor for driving said first pressure roll synchronously with motor means advancing said web from a web-making machine.

Claim 12

Dependent Claim 79 words

An improvement as defined in claim 1, wherein said first shaft means is formed of two spaced and axially aligned conical stub shafts; further including a second shaft means spaced from said first shaft means and formed of two spaced and axially aligned conical stub shafts for holding said second core on which said web is being wound; a first torque-responsive motor for driving said first shaft means and a second torque-responsive motor for driving said second shaft means.

Claim 13

Dependent Claim 109 words

An improvement as defined in claim 11, further including A. means for removing said second core from said second shaft means after said web is severed by said knife, B. means for positioning an empty or third core on said second shaft means after said second core has been removed therefrom, and C. rotatable support means holding both said first and said second shaft means, said rotatable support means is adapted, while said web is being wound on said first core and afteR said third core is positioned on said second shaft means, to be displaced in such a manner that said first and second shaft means exchange positions.

Claim 14

Independent Claim 95 words

A method of exchanging cores in a multiple high-speed web-winding machine comprising the following steps: A. positioning and axially supporting an empty, first core upstream of a second core on which a running web is being wound, B. providing a three-point support for said first core by means of three pressure rolls whereby said running web is trained about said first core and C. rotating said first core D. severing said running web on said first rotating core by moving, axially parallel therewith, a severing knife pivotable about an axis contained in its cutting plane.

Claim 15

Independent Claim 95 words

A method of exchanging cores in a multiple high-speed web-winding machine comprising the following steps: A. positioning and axially supporting an empty, first core upstream of a second core on which a running web is being wound, B. providing a three-point support for said first core by means of three pressure rolls whereby said running web is trained about said first core and C. rotating said first core D. severing said running web on said first rotating core by moving, axially parallel therewith, a severing knife pivotable about an axis contained in its cutting plane.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-07-12	1975-01-11	1975-07-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-07-12	1979-01-11	1979-07-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-07-12	1983-01-11	1983-07-13	$7700.00	Window Closed / Lapsed

Apparatus for replacing cores and severing webs in high-speed multiple winding machines

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