US3863543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pattern transmitting devices
Assignee: Franz Kuhlmann KG
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Filing: 1973-11-28
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Granted: 1975-02-04
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Expires: 1993-11-28
Abstract
Abstract A pattern transmitting device for a machine having a tool for the three-dimensional machining of a workpiece from a drawing and a contoured pattern comprises a drawing reader which automatically follows the outline of the drawing and which transmits its horizontal movements to the tool through a guide arrangement connected between the drawing reader and a pantograph supporting the tool. A tracer device follows the height contours of the pattern and transmits its movements to the tool to move the latter in its feed direction.
Inventors
- 👤 Albert Bottcher
- 👤 Hans Maass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:44
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232; Y10T409/302856
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
In a pattern controlled machine having a tool movable in a plane and in a vertical feed direction perpendicular to said plane for three dimensional machining of a workpiece in accordance with a planar drawing and a contoured pattern, a pantograph including said tool and a tracer means operable to follow contours on said pattern and control motion of said tool in the vertical feed direction, pattern transmitting means comprising drawing reader means for automatically following the outline of said drawing, and guide means pivotally connected between said pantograph and said reader means for transmitting movements of said reader means to said tracer means to control the motion of said tool in said plane.
Claim 2
Dependent Claim
114 words
In a pattern controlled machine having a tool movable in a plane and in a vertical feed direction perpendicular to said plane for three dimensional machining of a workpiece in accordance with a planar drawing and a contoured pattern, a pantograph including said tool and a tracer means operable to follow contours on said pattern and control motion of said tool in the vertical feed direction, pattern transmitting means comprising drawing reader means for automatically following the outline of said drawing, and guide means pivotally connected between said pantograph and said reader means for transmitting movements of said reader means to said tracer means to control the motion of said tool in said plane.
Claim 3
Dependent Claim
45 words
In a pattern controlled machine according to claim 1, including a fixed frame, wherein said pantograph is pivotally mounted on said fixed frame for pivotal movement about an axis parallel with said plane for transmission of vertical movements of said tracer means to said tool.
Claim 4
Dependent Claim
36 words
In a pattern controlled machine according to claim 1, wherein said pantograph includes lever arms and wherein said device includes setting means on said arms for adjusting porportional movements of said tool to said tracer means.
Claim 5
Dependent Claim
31 words
In a pattern controlled machine according to claim 1, further comprising a table for supporting said drawing, and a plurality of pins on said table for aligning and fixing said drawing.
Claim 6
Dependent Claim
16 words
In a pattern controlled machine according to claim 1, wherein said tool includes a milling cutter.
Claim 7
Dependent Claim
20 words
In a pattern controlled machine according to claim 1, wherein said guide means includes means for adjusting its effective length.
Claim 8
Dependent Claim
21 words
In a pattern controlled machine according to claim 1, wherein said guide means is pivotally connected directly to said tracer means.
Claim 9
Dependent Claim
19 words
In a pattern controlled machine according to claim 1, wherein said drawing reader means comprises an optical reader head.
References Cited (Backward Citations)
US2047013A
Cited
US3584535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |