Patent US3680413A successfully refreshed from Google Patents.
US3680413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lathe
Assignee: WM K STAMETS CO
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Filing: 1970-12-14
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Granted: 1972-08-01
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Expires: 1990-12-14
Abstract
Abstract A lathe having a tailstock with a cradle for loading and unloading work swingably mounted thereon and movable axially from a transfer position to the machining position where the work is chucked in the lathe and the cradle swung out of the way. Work is fed to the cradle at the transfer position from a roller conveyor by horizontal beams which lift the work and move it transversely of the lathe to intermediate stations and finally into the cradle. After machining of the work the cradle carries it to the transfer position and swings upwardly so that the work rolls transversely to another position after which it is moved to a work station and the exit conveyor.
Inventors
- 👤 Leonard L Hiney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:19
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/003; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2514; Y10T82/2516
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
124 words
A lathe comprising a headstock, a tailstock slidably mounted on guideways for axial movement toward and away from said headstock, a shaft rotatably supported on said tailstock and extending towards said headstock at a spaced-apart distance from the axis of rotation of the lathe, a work supporting member mounted on said shaft and extending below the axis of rotation of the lathe, means to move said tailstock axially of the lathe between a transfer position where said supporting member receives and ejects the work and a machining position where the work is chucked in the lathe and means for rotating said shaft to move said supporting member downward from a supporting position to a retracted position to permit rotation and machining of the work.
Claim 2
Dependent Claim
124 words
A lathe comprising a headstock, a tailstock slidably mounted on guideways for axial movement toward and away from said headstock, a shaft rotatably supported on said tailstock and extending towards said headstock at a spaced-apart distance from the axis of rotation of the lathe, a work supporting member mounted on said shaft and extending below the axis of rotation of the lathe, means to move said tailstock axially of the lathe between a transfer position where said supporting member receives and ejects the work and a machining position where the work is chucked in the lathe and means for rotating said shaft to move said supporting member downward from a supporting position to a retracted position to permit rotation and machining of the work.
Claim 3
Dependent Claim
32 words
A lathe according to claim 1 wherein an expandable mandrel is mounted on said headstock and extends axially toward said tailstock housing for chucking hollow work carried by said work supporting member.
Claim 4
Dependent Claim
44 words
A lathe according to claim 1 wherein conveyor means carry said work to a loading position spaced from said transfer position and transfer means carry the work from said loading position to said transfer position where the work is received by said supporting member.
Claim 5
Dependent Claim
37 words
A lathe according to claim 3 wherein said transfer means comprises a horizontal beam mounted on a body pivotally supported on parallel crank arms rotatable about parallel horizontal axes to provide transverse lifing movement of the work.
Claim 6
Dependent Claim
52 words
A lathe according to claim 4 wherein a work support is provided between said loading position and said transfer position at an intermediate supporting position for holding work and said horizontal beam extends beneaTh said support to move more than one piece of work at a time from one position to another.
Claim 7
Dependent Claim
47 words
A lathe according to claim 3 wherein a loading conveyor feeds work to said loading position and feeding means on said conveyor move one piece of work at a time into said loading position in response to movement of another piece of work out of said position.
Claim 8
Dependent Claim
40 words
A lathe according to claim 1 wherein completely machined work is ejected from said transfer position by moving said work supporting member upward from a supporting position to an ejection position to roll the work out of said supporting member.
Claim 9
Dependent Claim
56 words
A lathe according to claim 7 wherein work is ejected onto a support at a hold position adjacent said lathe and lifting means are rotatably supported on said shaft for rotation therewith and engagement with the work in the hold position upon downward movement of said supporting members to lift work out of the hold position.
Claim 10
Dependent Claim
18 words
A lathe according to claim 1 wherein said work supporting member comprises arms extending radially from said shaft.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |