US3827318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic lathe with rotary cutter
Assignee: Sorenson Engineering Inc
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Filing: 1972-03-23
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Granted: 1974-08-06
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Expires: 1992-03-23
Abstract
Abstract A sliding headstock automatic lathe includes a cutting tool which rotates in the same direction as the workpiece and at a speed precisely twice that of the workpiece, resulting in two or more flat cuts on the workpiece. The cutting tool is driven from the lathe spindle nose by a drive train which accommodates the relative longitudinal movement of the spindle nose and lateral movement of the cutting tool without slippage.
Inventors
- 👤 J Sorenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:31
CPC Classifications
B; B23; B23B; B23B11/00; B23Q; B23Q27/00; B23Q27/006; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/043; B23Q5/046; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5178; Y10T82/00; Y10T82/10; Y10T82/13; Y10T82/135
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
88 words
A lathe comprising: a base; headstock means mounted on said base for reciprocating movement longitudinally of the base; collet means on said headstock for gripping a rod; drive means for rotating said collet and rod; a rotatable cutting tool mounted on said base; feed means for reciprocating said headstock means to advance said rod past said tool as said rod rotates; and means connecting said tool and said drive means for rotating said tool at precisely an integer ratio ralative to the rate of rotation of said rod.
Claim 2
Dependent Claim
88 words
A lathe comprising: a base; headstock means mounted on said base for reciprocating movement longitudinally of the base; collet means on said headstock for gripping a rod; drive means for rotating said collet and rod; a rotatable cutting tool mounted on said base; feed means for reciprocating said headstock means to advance said rod past said tool as said rod rotates; and means connecting said tool and said drive means for rotating said tool at precisely an integer ratio ralative to the rate of rotation of said rod.
Claim 3
Dependent Claim
22 words
A lathe in accordance with claim 1 and further comprising: means for moving said tool laterally toward and away from said rod.
Claim 4
Dependent Claim
27 words
A lathe in accordance with claim 1 wherein said tool rotates at two times the rate of said rod and in the same direction as said rod.
Claim 5
Dependent Claim
18 words
A lathe in accordance with claim 3 wherein said tool includes two cutting edges spaced apart by 180*.
Claim 6
Dependent Claim
23 words
A lathe in accordance with claim 1 wherein said tool rotates at the same rate and in the same direction as said rod.
Claim 7
Dependent Claim
23 words
A lathe in accordance with claim 1 wherein said connecting means includes: pulley means surrounding said collet and positively connected for rotation therewith.
Claim 8
Dependent Claim
71 words
A lathe in accordance with claim 6 wherein said collet pulley means is a gear means, and said connecting means further comprises: second gear means rotatable about a shaft parallel to the collet axis and fixed against longitudinal translation along the base; and timing belt means driving said second gear means from said collet gear means, said collet geaR means having sufficient longitudinal dimension to accommodate the reciprocation of the headstock.
Claim 9
Dependent Claim
100 words
A lathe in accordance with claim 6 and further comprising: second pulley means rotatable about a shaft parallel to the collet axis and fixed against lateral movement relative to the base; belt means operatively connecting said collet pulley and said second pulley; holder means rotatably mounting the cutting tool, and mounted for pivotal movement on said base about an axis parallel to the collet axis for advancing and retracting the cutting tool; third pulley means rotatably mounted on said holder and operatively connected to rotate said cutting tool; and second belt means operatively connecting said second and third pulley means.
Claim 10
Dependent Claim
21 words
A lathe in accordance with claim 8 wherein said pulley means are gears and said belt means are toothed timing belts.
Claim 11
Dependent Claim
30 words
A lathe in accordance with claim 8 wherein the angle from the second pulley axis through the third pulley axis to the pivot axis of the holder is about 180*.
Claim 12
Dependent Claim
44 words
A lathe in accordance with claim 1 and further comprising: bushing means forward of said collet means and immediately rearward of said cutting tool, fixed against longitudinal and lateral movement relative to said base and supporting the rotating and advancing rod adjacent the tool.
Claim 13
Independent Claim
86 words
A method of cutting a window in a tubular rod having a radius at least several times larger than its wall thickness comprising: rotating said rod about its longitudinal axis; contacting said workpiece with a cutting tool while rotating said tool in the same direction as said rod is rotated about an axis generally parallel to said axis of rotation of the rod and at precisely the same rate of rotation to cut a window in said rod the cut surfaces of which are slightly convex.
Claim 14
Independent Claim
86 words
A method of cutting a window in a tubular rod having a radius at least several times larger than its wall thickness comprising: rotating said rod about its longitudinal axis; contacting said workpiece with a cutting tool while rotating said tool in the same direction as said rod is rotated about an axis generally parallel to said axis of rotation of the rod and at precisely the same rate of rotation to cut a window in said rod the cut surfaces of which are slightly convex.
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |