Patent US2903203A successfully refreshed from Google Patents.
Patent US3919919A successfully refreshed from Google Patents.
US3919919A
Expired / Lapsed
US
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Three dimensional cutting machine with pantograph control
Assignee: Individual
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Filing: 1974-09-24
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Granted: 1975-11-18
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Expires: 1994-09-24
Abstract
Abstract A machine for three dimensional machining of a workpiece by pantograph control to conform the workpiece to a model. The assembly includes a tool holder and tracer assembly which may be moved horizontally along a worktable, horizontally across the worktable, or vertically relative to the worktable by a pantograph parallel beam system, such movements being accommodated by first and second horizontal slide means and a vertical slide means. An important feature of the invention is that the first and second slide means providing lateral horizontal movement and fore and aft horizontal movement relative to a workpiece or a supporting worktable are disposed in vertically spaced horizontal planes one above the other whereby excessive cantilevered positions of the tool and tracer holder is eliminated.
Inventors
- 👤 Joseph J Dancsik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:23
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: 28
Claim 1
Independent Claim
154 words
A machine for three-dimensional machining of a workpiece by pantograph control to conform the workpiece to a model, comprising: support means; a fore and aft slide assembly; a lateral slide assembly; a tool and tracer holder assembly; first and second slide means slidably interconnecting said support means, said fore and aft slide assembly and said lateral slide assembly; said first and second slide means being disposed perpendicularly to one another and one directly above the other; third slide means slidably connecting said tool and tracer holder assembly to one of said fore and aft and said lateral slide assemblies; said third slide means being disposed perpendicularly to said first and second slide means; said support means includes adjustment means comprising at least a portion of at least one slideway which may be used for adjusting the position of said assemblies as a unit; and pantograph means for moving said tool and tracer holder assembly.
Claim 2
Dependent Claim
154 words
A machine for three-dimensional machining of a workpiece by pantograph control to conform the workpiece to a model, comprising: support means; a fore and aft slide assembly; a lateral slide assembly; a tool and tracer holder assembly; first and second slide means slidably interconnecting said support means, said fore and aft slide assembly and said lateral slide assembly; said first and second slide means being disposed perpendicularly to one another and one directly above the other; third slide means slidably connecting said tool and tracer holder assembly to one of said fore and aft and said lateral slide assemblies; said third slide means being disposed perpendicularly to said first and second slide means; said support means includes adjustment means comprising at least a portion of at least one slideway which may be used for adjusting the position of said assemblies as a unit; and pantograph means for moving said tool and tracer holder assembly.
Claim 3
Dependent Claim
22 words
A machine as set forth in claim 1 wherein said first slide means provides for horizontal movement of said lateral slide assembly.
Claim 4
Dependent Claim
24 words
A machine as set forth in claim 2 wherein said second slide means provides for horizontal movement of said fore and aft slide assembly.
Claim 5
Dependent Claim
24 words
A machine as set forth in claim 3 wherein said third slide means provides for vertical movement of said tool and tracer holder assembly.
Claim 6
Dependent Claim
31 words
A machine as set forth in claim 4 wherein said first and second slide means are disposed in first and second horizontal planes which are vertically spaced one above the other.
Claim 7
Dependent Claim
30 words
A machine as set forth in claim 5 wherein said pantograph means is pivotally mounted on said support means and is pivotally connected to said tool and tracer holder assembly.
Claim 8
Dependent Claim
19 words
A machine as set forth in claim 6 including counterbalancing means for counterbalancing said tool and tracer holder assembly.
Claim 9
Dependent Claim
30 words
A machine as set forth in claim 7 wherein said counterbalancing means includes a lever attached to said tool and tracer holder assembly and a counterweight disposed on said lever.
Claim 10
Dependent Claim
26 words
A machine as set forth in claim 8 wherein said lever is pivotally supported on one of said fore and aft and said lateral slide assemblies.
Claim 11
Dependent Claim
25 words
A machine as set forth in claim 9 wherein said counterbalancing means includes adjustment means for adjusting the position of said counterweight along said lever.
Claim 12
Dependent Claim
26 words
A machine as set forth in claim 6 wherein said support means includes a worktable, said tool and tracer holder means being disposed above said worktable.
Claim 13
Dependent Claim
40 words
A machine as set forth in claim 11 wherein said adjustment means includes a plurality of slideways for providing fore and aft horizontal movement, lateral horizontal movement and vertical movement of said assemblies as a unit relative to said table.
Claim 14
Dependent Claim
30 words
A machine as set forth in claim 12 wherein said adjustment means includes first and second slideways for providing transverse horizontal movements and a vertical slideway for providing vertical movement.
Claim 15
Dependent Claim
72 words
A machine as set forth in claim 13 wherein said adjustment means includes a first member slidably supported on said worktable for horizontal movement along said worktable by said first slideway, a second member slidably supported on said first member for vertical movement relative to said first member by said vertical slideway, and a third member Slidably supported on said second member for horizontal movement across said worktable by said second slideway.
Claim 16
Dependent Claim
31 words
A machine as set forth in claim 14 wherein said lateral slide assembly is supported on said third member through said first slide means for said lateral horizontal movement relative thereto.
Claim 17
Dependent Claim
36 words
A machine as set forth in claim 15 wherein said fore and aft slide assembly is supported on said lateral slide assembly through said second slide means for said fore and aft horizontal movement relative thereto.
Claim 18
Dependent Claim
35 words
A machine as set forth in claim 16 wherein said tool and tracer holder assembly is supported on said fore and aft slide assembly through said third slide means for said vertical movement relative thereto.
Claim 19
Dependent Claim
102 words
A machine as set forth in claim 17 wherein said pantograph means includes first and second parallel beams and third and forth parallel beams, said beams being pivotally interconnected to define a parallelogram, said beams being universally supported at a position adjacent the pivotal connection between said second and third beams, universal means operatively interconnecting said first beam and said tool and tracer holder assembly, said universal means being adjustable to various positions along said first beam, said fourth beam extending beyond the pivotal connection thereof to said first beam, and a handle attached to the distal end of said fourth beam.
Claim 20
Dependent Claim
19 words
A machine as set forth in claim 18 including counterbalancing means for counterbalancing said tool and tracer holder assembly.
Claim 21
Dependent Claim
30 words
A machine as set forth in claim 19 wherein said counterbalancing means includes a lever attached to said tool and tracer holder assembly and a counterweight disposed on said lever.
Claim 22
Dependent Claim
21 words
A machine as set forth in claim 20 wherein said lever is pivotally supported on said fore and aft slide assembly.
Claim 23
Dependent Claim
25 words
A machine as set forth in claim 21 wherein said counterbalancing means includes adjustment means for adjusting the position of said counterweight along said lever.
Claim 24
Dependent Claim
26 words
A machine as set forth in claim 22 wherein said tool and tracer holder assembly includes a tool support and an attachment for supporting said tracer.
Claim 25
Dependent Claim
30 words
A machine as set forth in claim 23 wherein said attachment is attachable to said tool support in various positions to adjust the position between the tool and the tracer.
Claim 26
Dependent Claim
26 words
A machine as set forth in claim 1 wherein said tool and tracer holder assembly includes a tool support and an attachment for supporting said tracer.
Claim 27
Dependent Claim
30 words
A machine as set forth in claim 25 wherein said attachment is attachable to said tool support in various positions to adjust the position between the tool and the tracer.
Claim 28
Dependent Claim
58 words
A machine as set forthin claim 26 wherein said attachment includes means for attachment to said tool support adjacent one end and a tracer support at the other end, said attachment being reversibly attachable to said tool support so that said tracer support may be disposed at either end of said attachment when secures to said tool support.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |