US4210052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scoring mechanism
Assignee: Pilkington North America Inc
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Filing: 1978-09-28
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Granted: 1980-07-01
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Expires: 1998-09-28
Abstract
Abstract A method of and apparatus for precisely locating and quickly producing intermittent, uniform score lines in a surface of a moving sheet of material by first moving a pair of axially aligned gauge wheels into contact with the sheet material and then alternately moving a scoring tool positioned therebetween, into and out of scoring engagement with the surface of the moving sheet. The gauge wheels are mounted on the movable end of a pivotally mounted arm for movement, by a diaphragm motor, along a path lying in a plane extending normal to and longitudinally of the sheet material. The scoring tool is mounted on the arm for movement independent thereof by a double acting motor, and into and out of scoring contact with the sheet material. Also, the scoring tool is provided with an adjusting device for extending it relative to the gauge wheels and an abutment is provided to limit its movement away from the sheet material. This construction allows the scoring tool to be quickly moved into and out of engagement with the surface of the sheet material to precisely begin and end a score line and to produce a uniform score line by being urged into engagement therewith with a substantially constant force regardless of any variations occurring in the thickness of the sheet material.
Inventors
- 👤 Arnold R. Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:06
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/02; C03B33/023; C03B33/0235; B; B26; B26D; B26D3/00; B26D3/08; B26D3/085; B26D5/00; B26D5/02; B26D5/04; C03B33/10; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0333; Y10T83/0348; Y10T83/0385
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
178 words
In a scoring mechanism of the type mounted over a moving sheet of material and having an arm movable along a path lying in a plane extending normal to the surface and longitudinally along the path of the sheet material, the arm including a pair of axially aligned gauge wheels rotatably mounted thereon, the improvement comprising: a. means connected to said arm for moving and maintaining said gauge wheels in continuous rolling engagement with the moving sheet of material; b. a scoring tool mounted on said arm between said gauge wheels for movement relative thereto; c. means mounted on said arm and connected to said scoring tool, extending and retracting said scoring tool relative to said gauge wheels while the gauge wheels are maintained in continuous rolling engagement with the moving sheet of material whereby intermittent uniform score lines are precisely located and quickly produced in the moving sheet of material; and d. means connected between said scoring tool and said extending and retracting means for adjusting the extension of said scoring tool relative to said gauge wheels.
Claim 2
Dependent Claim
178 words
In a scoring mechanism of the type mounted over a moving sheet of material and having an arm movable along a path lying in a plane extending normal to the surface and longitudinally along the path of the sheet material, the arm including a pair of axially aligned gauge wheels rotatably mounted thereon, the improvement comprising: a. means connected to said arm for moving and maintaining said gauge wheels in continuous rolling engagement with the moving sheet of material; b. a scoring tool mounted on said arm between said gauge wheels for movement relative thereto; c. means mounted on said arm and connected to said scoring tool, extending and retracting said scoring tool relative to said gauge wheels while the gauge wheels are maintained in continuous rolling engagement with the moving sheet of material whereby intermittent uniform score lines are precisely located and quickly produced in the moving sheet of material; and d. means connected between said scoring tool and said extending and retracting means for adjusting the extension of said scoring tool relative to said gauge wheels.
Claim 3
Dependent Claim
43 words
A scoring mechanism of the type mounted over a moving sheet of material as claimed in claim 1, wherein said means for moving and maintaining said gauge wheels in continuous engagement with the moving sheet of material comprises a single acting diaphragm motor.
Claim 4
Dependent Claim
33 words
A scoring mechanism of the type mounted over a moving sheet of material as claimed in claim 1, wherein said extending and retracting means connected to said scoring tool comprises a double-acting motor.
Claim 5
Dependent Claim
184 words
In a scoring mechanism of the type mounted over a moving sheet of material and having an arm movable along a path lying in a plane extending normal to the surface and longitudinally along the path of the sheet material, the arm including a pair of axially aligned gauge wheels rotatably mounted thereon, the improvement comprising: a. means connected to said arm for moving and maintaining said gauge wheels in continuous rolling engagement with the moving sheet of material; b. a scoring tool mounted on said arm between said gauge wheels for movement relative thereto; c. means mounted on said arm and connected to said scoring tool, extending and retracting said scoring tool relative to said gauge wheels while the gauge wheels are maintained in continuous rolling engagement with the moving sheet of material whereby intermittent uniform score lines are precisely located and quickly produced in the moving sheet of material; and d. means for adjusting the extension of said scoring tool relative to said gauge wheels, said adjusting means comprising a turnbuckle and a jam nut for locking said turnbuckle in adjusted position.
Claim 6
Dependent Claim
184 words
In a scoring mechanism of the type mounted over a moving sheet of material and having an arm movable along a path lying in a plane extending normal to the surface and longitudinally along the path of the sheet material, the arm including a pair of axially aligned gauge wheels rotatably mounted thereon, the improvement comprising: a. means connected to said arm for moving and maintaining said gauge wheels in continuous rolling engagement with the moving sheet of material; b. a scoring tool mounted on said arm between said gauge wheels for movement relative thereto; c. means mounted on said arm and connected to said scoring tool, extending and retracting said scoring tool relative to said gauge wheels while the gauge wheels are maintained in continuous rolling engagement with the moving sheet of material whereby intermittent uniform score lines are precisely located and quickly produced in the moving sheet of material; and d. means for adjusting the extension of said scoring tool relative to said gauge wheels, said adjusting means comprising a turnbuckle and a jam nut for locking said turnbuckle in adjusted position.
Claim 7
Dependent Claim
202 words
In a scoring mechanism of the type mounted over a moving sheet of material and having an arm movable along a path lying in a plane extending normal to the surface and longitudinally along the path of the sheet material, the arm including a pair of axially aligned gauge wheels rotatably mounted thereon, the improvement comprising: a. means connected to said arm for moving and maintaining said gauge wheels in continuous rolling engagement with the moving sheet of material; b. a scoring tool mounted on said arm between said gauge wheels for movement relative thereto; and c. means mounted on said arm and connected to said scoring tool, extending and retracting said scoring tool relative to said gauge wheels while the gauge wheels are maintained in continuous rolling engagement with the moving sheet of material whereby intermittent uniform score lines are precisely located and quickly produced in the moving sheet of material, said extending and retracting means comprising a double-acting motor, said double-acting motor including a piston having a double ended piston rod and said arm includes a stop plate for abutting one of said rod ends when said scoring tool is retracted from the surface of the moving sheet of material.
Claim 8
Dependent Claim
202 words
In a scoring mechanism of the type mounted over a moving sheet of material and having an arm movable along a path lying in a plane extending normal to the surface and longitudinally along the path of the sheet material, the arm including a pair of axially aligned gauge wheels rotatably mounted thereon, the improvement comprising: a. means connected to said arm for moving and maintaining said gauge wheels in continuous rolling engagement with the moving sheet of material; b. a scoring tool mounted on said arm between said gauge wheels for movement relative thereto; and c. means mounted on said arm and connected to said scoring tool, extending and retracting said scoring tool relative to said gauge wheels while the gauge wheels are maintained in continuous rolling engagement with the moving sheet of material whereby intermittent uniform score lines are precisely located and quickly produced in the moving sheet of material, said extending and retracting means comprising a double-acting motor, said double-acting motor including a piston having a double ended piston rod and said arm includes a stop plate for abutting one of said rod ends when said scoring tool is retracted from the surface of the moving sheet of material.
References Cited (Backward Citations)
US2948991A
Cited
US4070936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-01 | 1983-12-31 | 1984-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-01 | 1987-12-31 | 1988-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-01 | 1991-12-31 | 1992-07-01 | $7700.00 | Window Closed / Lapsed |