US3918331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lathes
Assignee: SMT MACHINE CO AB
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Filing: 1974-06-03
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Granted: 1975-11-11
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Expires: 1994-06-03
Abstract
Abstract In a preferably automatic lathe having a horizontal spindle and turret, the spindle is arranged in a spindle headstock which is rectilinearly movable in a direction perpendicular to the center line of the spindle, the turret being rectilinearly movable in a direction perpendicular to the direction of movement of the spindle headstock. Furthermore, the axis of rotation of the turret is perpendicular to the center line of the spindle and at least substantially parallel to the direction of movement of the spindle headstock, and the turret is adapted to hold tools for internal as well as external machining operations.
Inventors
- 👤 Sven-Erik Svanstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:17
CPC Classifications
B; B23; B23B; B23B3/00; B23B3/16; B23B3/161; B23B3/06; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5159; Y10T29/5161; Y10T82/00; Y10T82/25; Y10T82/2502; Y10T82/2506; Y10T82/2508
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
195 words
A lathe having a spindle and a turret wherein said spindle is positioned horizontally and arranged in a spindle headstock and is rectilinearly movable in a direction perpendicular to the center line of said spindle; said turret having an axis of rotation perpendicular to the center line of said spindle and at least substantially parallel to the direction of movement of said spindle headstock; said spindle headstock being movable in a horizontally rectilinearly direction; said turret being rectilinearly movable, with said turret being horizontally rectilinearly movable in the direction perpendicular to the horizontal direction of movement of said spindle headstock, and axis of rotation of said turret being horizontally orientated; said spindle headstock being horizontally rectilinearly movable between an operating position whereby a workpiece at said spindle cooperates with tools at said turret arranged for internal as well as external machining operations; a releasing position of said spindle entirely by the side of said turret; said spindle headstock and said turret being so horizontally rectilinearly movable along guides at an at least substantially L-shaped support that said spindle at least in a releasing position is at a free space between stems of said L-shaped support.
Claim 2
Dependent Claim
195 words
A lathe having a spindle and a turret wherein said spindle is positioned horizontally and arranged in a spindle headstock and is rectilinearly movable in a direction perpendicular to the center line of said spindle; said turret having an axis of rotation perpendicular to the center line of said spindle and at least substantially parallel to the direction of movement of said spindle headstock; said spindle headstock being movable in a horizontally rectilinearly direction; said turret being rectilinearly movable, with said turret being horizontally rectilinearly movable in the direction perpendicular to the horizontal direction of movement of said spindle headstock, and axis of rotation of said turret being horizontally orientated; said spindle headstock being horizontally rectilinearly movable between an operating position whereby a workpiece at said spindle cooperates with tools at said turret arranged for internal as well as external machining operations; a releasing position of said spindle entirely by the side of said turret; said spindle headstock and said turret being so horizontally rectilinearly movable along guides at an at least substantially L-shaped support that said spindle at least in a releasing position is at a free space between stems of said L-shaped support.
Claim 3
Dependent Claim
21 words
A lathe as claimed in claim 1, wherein tools for internal machining are located inside the outer face of said turret.
Claim 4
Dependent Claim
47 words
A lathe as claimed in claim 1, wherein tools for internal machining are offset in the axial direction of said turret in relation to external machining tools, the internal machining tools being located further inward from the outer edge of said turret than the external machining tools.
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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |