US3922820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for feathering rubber stock
Assignee: Structural Fibers Inc
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Filing: 1974-01-09
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Granted: 1975-12-02
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Expires: 1994-01-09
Abstract
Abstract Apparatus for skiving edge portions of sheet stock is disclosed. The apparatus includes a table having a surface adapted to support sheet stock so that an edge of the stock is in coplanar relationship with an edge of the table. A pair of rollers are mounted over the table and those rollers drive an endless abrasive belt. The belt has a flat reach extending at an acute angle with respect to the plane of the table and at least a portion of the flat reach overlies and is intersected by a plane normal to the table and passing through the table edge.
Inventors
- 👤 Arthur J Wiltshire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:27
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/002
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
Apparatus for skiving edge portions of sheet stock, comprising a flat table having a surface adapted to support sheet stock, said table having means to retain an edge of said stock in coplanar relationship with an edge of said table, an endless abrasive belt mounted between a drive roller and an idler roller and having a flat reach extending at an acute angle with respect to the plane of said table, at least a portion of said flat reach overlying and being intersected by a plane normal to said table and passing through said table edge, one of said rollers having at least a portion thereof located below the plane of said table, said roller adjacent said portion of said flat reach being supported relative to the table by a roller which is adapted to roll along a shelf portion of said table adjacent said edge.
Claim 2
Dependent Claim
146 words
Apparatus for skiving edge portions of sheet stock, comprising a flat table having a surface adapted to support sheet stock, said table having means to retain an edge of said stock in coplanar relationship with an edge of said table, an endless abrasive belt mounted between a drive roller and an idler roller and having a flat reach extending at an acute angle with respect to the plane of said table, at least a portion of said flat reach overlying and being intersected by a plane normal to said table and passing through said table edge, one of said rollers having at least a portion thereof located below the plane of said table, said roller adjacent said portion of said flat reach being supported relative to the table by a roller which is adapted to roll along a shelf portion of said table adjacent said edge.
Claim 3
Dependent Claim
26 words
Apparatus according to claim 1, wherein said supporting roller has a first portion of relatively small diameter and an axially adjacent portion of relatively large diameter.
Claim 4
Dependent Claim
45 words
Apparatus according to claim 2, including means to axially shift the position of said supporting roller toward and away from the table so that said large and small diameter portions may selectively roll along said shelf to change the depth of cut by said belt.
Claim 5
Dependent Claim
192 words
Apparatus for skiving edge portions of sheet stock, comprising a flat table havIng a surface adapted to support sheet stock, said table having means to retain an edge of said stock in coplanar relationship with an edge of said table, an endless abrasive belt mounted between a drive roller and an idler roller and having a flat reach extending at an acute angle with respect to the plane of said table, at least a portion of said flat reach overlying and being intersected by a plane normal to said table and passing through said table edge, said drive roller being rotatably mounted on a bracket having a hub portion, a guide rod passing through said hub portion and being parallel to the edge of said table, a threaded shaft rotatably mounted on said table, means for rotating said threaded shaft, means fixed to said hub portion and engaging the threads of said shaft, a beam extending from said hub portion and having its distal end fixed to a support arm, said idler roller being rotatably mounted on said support arm and having a portion thereof located below the plane of said table.
Claim 6
Dependent Claim
192 words
Apparatus for skiving edge portions of sheet stock, comprising a flat table havIng a surface adapted to support sheet stock, said table having means to retain an edge of said stock in coplanar relationship with an edge of said table, an endless abrasive belt mounted between a drive roller and an idler roller and having a flat reach extending at an acute angle with respect to the plane of said table, at least a portion of said flat reach overlying and being intersected by a plane normal to said table and passing through said table edge, said drive roller being rotatably mounted on a bracket having a hub portion, a guide rod passing through said hub portion and being parallel to the edge of said table, a threaded shaft rotatably mounted on said table, means for rotating said threaded shaft, means fixed to said hub portion and engaging the threads of said shaft, a beam extending from said hub portion and having its distal end fixed to a support arm, said idler roller being rotatably mounted on said support arm and having a portion thereof located below the plane of said table.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |