US3584535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for duplicating milling machine
Assignee: Friedrich Deckel AG
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Filing: 1969-08-15
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Granted: 1971-06-15
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Expires: 1989-08-15
Abstract
Abstract A cantilevered arm attachment for the tracing stylus bushing of a duplicating milling machine, with a tracing stylus adapted to move axially in one coordinate direction as it traces over the contoured surface of a three-dimensional pattern and pivot a lever arm to transfer the axial dimension movements in a selected reduction ration to the tracing stylus bushing and the cutting tool which is guided by it, by means of a cantilevered arm to which the lever arm is pivoted, whereby the tool cuts in a workpiece a relief style transformation of an ordinary threedimensional pattern, which has dimensions in one coordinate direction, such as the vertical dimensions, which are greatly reduced from the corresponding dimensions of the pattern while the transfer of dimensions in the other coordinate directions are uneffected by the attachment.
Inventors
- 👤 Franz Rossberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:59
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/20; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232; Y10T409/3014
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
272 words
An attachment for a duplicating milling machine of the type having support means for carrying a workpiece and a threedimensional pattern, and transmission means carrying a cutting tool and a pattern tracer in a tracer bushing with the axes of each being substantially parallel, the transmission means being responsive to movement of the pattern tracer over the pattern to respectively move the cutting tool into contact with the workpiece, comprising a pattern tracer stylus being receivable in the tracer bushing of the duplicating machine and being axially slidable therein, a cantilevered arm having means adapting it for connection to the tracer bushing and extending away from the tracer bushing, a lever member, pivot means pivotally connecting the cantilevered arm and the medial portion of said lever member, means defining a guide plane disposed normal to the axis of the pattern tracer stylus and disposed at a predetermined fixed position relative to the three-dimensional pattern, one end of said lever member pivotally connected to the pattern tracer stylus, and the opposite end of said lever member connected in guiding relation with said means defining a guide plane, whereby the transmission ratio of the relative motions of the pattern tracer stylus with respect to a three-dimensional pattern in the direction of the tracer stylus axis and of the cutting tool with respect to the workpiece in the direction of the cutting tool axis is reduced and different from the transmission ratio from the tracer stylus to the cutting tool of the relative motions in the planes normal to the tracer stylus axis to produce reliefs on the workpiece in accordance with the three-dimensional pattern.
Claim 2
Dependent Claim
272 words
An attachment for a duplicating milling machine of the type having support means for carrying a workpiece and a threedimensional pattern, and transmission means carrying a cutting tool and a pattern tracer in a tracer bushing with the axes of each being substantially parallel, the transmission means being responsive to movement of the pattern tracer over the pattern to respectively move the cutting tool into contact with the workpiece, comprising a pattern tracer stylus being receivable in the tracer bushing of the duplicating machine and being axially slidable therein, a cantilevered arm having means adapting it for connection to the tracer bushing and extending away from the tracer bushing, a lever member, pivot means pivotally connecting the cantilevered arm and the medial portion of said lever member, means defining a guide plane disposed normal to the axis of the pattern tracer stylus and disposed at a predetermined fixed position relative to the three-dimensional pattern, one end of said lever member pivotally connected to the pattern tracer stylus, and the opposite end of said lever member connected in guiding relation with said means defining a guide plane, whereby the transmission ratio of the relative motions of the pattern tracer stylus with respect to a three-dimensional pattern in the direction of the tracer stylus axis and of the cutting tool with respect to the workpiece in the direction of the cutting tool axis is reduced and different from the transmission ratio from the tracer stylus to the cutting tool of the relative motions in the planes normal to the tracer stylus axis to produce reliefs on the workpiece in accordance with the three-dimensional pattern.
Claim 3
Dependent Claim
47 words
An attachment as set forth in claim 1 in which said pivot means includes plural alternately usable support members at varying spacings along the medial portion of said lever member, and a pivot bearing conNected to said cantilevered arm and in contact with a selected support member.
Claim 4
Dependent Claim
56 words
An attachment as set forth in claim 2 in which said pivot bearing is selectively movable to one of several positions along the length of said cantilevered arm to change the transmission ratio from the tracer stylus to the tracer bushing, and releasable means for securing said pivot means in a selected position on said arm.
Claim 5
Dependent Claim
30 words
An attachment as set forth in claim 1 including spring means operatively connected between said cantilevered arm and said lever member for maintaining the pivot connection of said pivot means.
Claim 6
Dependent Claim
42 words
An attachment as set forth in claim 3 including a reduction scale on said cantilevered arm adjacent said movable pivot bearing and defining the said several positions, and an index mark on said pivot bearing adapted for registration with said reduction scale.
Claim 7
Dependent Claim
55 words
An attachment as set forth in claim 1 in which said means defining a guide plane is a rail member having means adapting it for connection to the support means carrying the three-dimensional pattern, and roller means connected on said opposite end of said lever member and disposed in guiding contact with said rail member.
Claim 8
Dependent Claim
32 words
An attachment as set forth in claim 1 in which said cantilevered arm means adapts said cantilevered arm for pivotal connection with the tracer bushing to pivot about the tracer stylus axis.
Claim 9
Dependent Claim
31 words
An attachment as set forth in claim 1 in which said pivot means comprises a surface curved convexly with respect to the longitudinal axes of the cantilevered arm and lever member.
Claim 10
Dependent Claim
22 words
An attachment as set forth in claim 8 in which said convex surface depends from and curves outwardly from said cantilevered arm.
Claim 11
Dependent Claim
27 words
An attachment as set forth in claim 9 in which said convex surface is movable longitudinally of said cantilevered arm to selected positions along the length thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |