Patent US3824741A successfully refreshed from Google Patents.
US3824741A
Expired / Lapsed
US
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Method and apparatus for traversing a cam follower
Assignee: Individual
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Filing: 1972-04-17
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Granted: 1974-07-23
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Expires: 1992-04-17
Abstract
Abstract A system for the machining of work pieces, particularly the abrading of die rolls for a tube reducing mill, where the work piece and the master pattern or cam are mounted for rotation on a common shaft and moved relative to a master follower and rotating tool, respectively, with this relative movement being biased translation with only the angle of the translation varying with respect to the axis of rotation for causing the follower to traverse the entire control surface of the master and correspondingly cause the tool to duplicate the master control surface in the work piece. The follower and tool are mounted on a common table, which table is mounted with respect to a base for only translation, that is, the table will not rotate with respect to the separately mounted master and work piece. A slide mechanism allowing only translation of the table is rotated independently of the table to traverse the direction of table translation through an angle of 180*. Elements are provided to bias the table in the direction of translation so that with the 180* rotation of the slide, the follower will traverse the entire control surface of the master, in one plane. The master is rotated about an axis parallel to the above-mentioned plane so that its entire three dimensional surface will be engaged by the follower.
Inventors
- 👤 H Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:06
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/02; B24B19/026; Y; Y10; Y10T; Y10T82/00; Y10T82/13; Y10T82/135
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
Control apparatus comprising: a cam mounted for rotation about an axis and having an annular cam control surface varying in Radius peripherally around said axis and varying in configuration as measured parallel to its axis about its periphery; a cam follower; means guiding said cam follower for movement relative to said cam along a single path; and means, in addition to said follower, for varying the angle of said path relative to said cam axis of rotation without changing the angular relationship between said cam axis of rotation and said follower.
Claim 2
Dependent Claim
91 words
Control apparatus comprising: a cam mounted for rotation about an axis and having an annular cam control surface varying in Radius peripherally around said axis and varying in configuration as measured parallel to its axis about its periphery; a cam follower; means guiding said cam follower for movement relative to said cam along a single path; and means, in addition to said follower, for varying the angle of said path relative to said cam axis of rotation without changing the angular relationship between said cam axis of rotation and said follower.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 including means for mounting said follower for rotation about an axis parallel to the axis of rotation of said cam.
Claim 4
Dependent Claim
19 words
The apparatus of claim 1 including means for biasing said cam follower against the control surface of said cam.
Claim 5
Dependent Claim
84 words
A control mechanism comprising: means for holding a cam; a cam follower; means interconnecting said cam holding means and said cam follower for only relative translatory movement within a plane; means for biasing said cam follower and cam holding means relatively toward each other along a path within said plane; and means in addition to said follower, sweeping said bias path through an angle sufficient to traverse the cam surface by the follower without rotating the follower relative to the cam within said plane.
Claim 6
Dependent Claim
84 words
A control mechanism comprising: means for holding a cam; a cam follower; means interconnecting said cam holding means and said cam follower for only relative translatory movement within a plane; means for biasing said cam follower and cam holding means relatively toward each other along a path within said plane; and means in addition to said follower, sweeping said bias path through an angle sufficient to traverse the cam surface by the follower without rotating the follower relative to the cam within said plane.
Claim 7
Dependent Claim
39 words
The apparatus of claim 4, wherein said cam holding means includes means for rotating a cam about an axis lying in a plane that is generally perpendicular to a plane containing the axis about which the path is rotated.
Claim 8
Dependent Claim
105 words
A control mechanism comprising: means for holding a cam; a cam follower; interconnecting means interconnecting said cam holding means and said cam follower for relative movement toward and away from each other along a predetermined single path; adjusting means, in addition to said follower, for adjusting said interconnecting means to rotate the predetermined single path through a substantial angle to cause said cam follower to traverse a cam surface held by said means for holding a cam and said adjusting means preventing relative rotation of said cam holding means and said cam follower about an axis parallel with the axis of rotation of said path.
Claim 9
Dependent Claim
105 words
A control mechanism comprising: means for holding a cam; a cam follower; interconnecting means interconnecting said cam holding means and said cam follower for relative movement toward and away from each other along a predetermined single path; adjusting means, in addition to said follower, for adjusting said interconnecting means to rotate the predetermined single path through a substantial angle to cause said cam follower to traverse a cam surface held by said means for holding a cam and said adjusting means preventing relative rotation of said cam holding means and said cam follower about an axis parallel with the axis of rotation of said path.
Claim 10
Independent Claim
77 words
The method of traversing a curved cam surface with a follower, comprising the steps of: guiding the follower for only translatory movement in a plane intersecting the curved surface; biasing said follower along a path in the same plane and into engagement with said curved surface; and rotating the bias path through an angle sufficient to traverse the curved surface while simultaneously preventing the same rotation of said follower relative to said curved surface within the plane.
Claim 11
Independent Claim
77 words
The method of traversing a curved cam surface with a follower, comprising the steps of: guiding the follower for only translatory movement in a plane intersecting the curved surface; biasing said follower along a path in the same plane and into engagement with said curved surface; and rotating the bias path through an angle sufficient to traverse the curved surface while simultaneously preventing the same rotation of said follower relative to said curved surface within the plane.
Claim 12
Dependent Claim
37 words
The method of claim 7, including the step of simultaneously rotating said curved surface about an axis lying in a plane that is substantially perpendicular to a plane containing the axis about which said path is rotated.
References Cited (Backward Citations)
US1499633A
Cited
US1918138A
Cited
US1918139A
Cited
US2109454A
Cited
US2364322A
Cited
US2415062A
Cited
US2509070A
Cited
US2739501A
Cited
US2964885A
Cited
US3041789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |