US3785227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lathe
Assignee: Alcatel CIT SA
•
Filing: 1971-10-14
•
Granted: 1974-01-15
•
Expires: 1991-10-14
Abstract
Abstract A lathe has a bedplate to which is mounted a lathe bed defining first and second slideways and a fixed headstock holding a rotatable spindle. A movable tailstock slides on at least one of the slideways such that the spindle axis lies in a first plane and the first and second slideways lie in a common second plane perpendicular to the first plane and equally spaced therefrom.
Inventors
- 👤 P Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:32
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/01; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2564; Y10T82/2566; Y10T82/2572
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
95 words
A lathe comprising: a bedplate, a lathe bed mounted on said bedplate defining first and second pairs of slideways, a fixed headstock attached to said lathe bed and holding a rotatable spindle, a movable tailstock on one of the pairs of slideways, means for maintaining the spindle axis in a first plane, and said first and second pairs of slideways lying in a common second plane perpendicular to the first plane and being equally spaced from the first plane and being symmetrical to permit said tailstock to be interchangeably carried by either pairs of slideways.
Claim 2
Dependent Claim
95 words
A lathe comprising: a bedplate, a lathe bed mounted on said bedplate defining first and second pairs of slideways, a fixed headstock attached to said lathe bed and holding a rotatable spindle, a movable tailstock on one of the pairs of slideways, means for maintaining the spindle axis in a first plane, and said first and second pairs of slideways lying in a common second plane perpendicular to the first plane and being equally spaced from the first plane and being symmetrical to permit said tailstock to be interchangeably carried by either pairs of slideways.
Claim 3
Dependent Claim
25 words
A lathe as claimed in claim 1, wherein: the lathe bed is formed with a first aperture between the first and second pairs of slideways.
Claim 4
Dependent Claim
16 words
A lathe as claimed in claim 2, wherein: the first aperture houses at least one carriage.
Claim 5
Dependent Claim
22 words
A lathe as claimed in claim 2, wherein: the first aperture houses at least one device for handling workpieces of the lathe.
Claim 6
Dependent Claim
42 words
A lathe as claimed in claim 1, wherein: the headstock bearing for the spindle is split in the first plane and the means for maintaining the spindle axis in the first plane comprises a layer of thermally-insulative material between the bearing segments.
Claim 7
Dependent Claim
43 words
A lathe as claimed in claim 4, wherein: the headstock bearing for the spindle is split in the first plane and the means for maintaining the spindle axis in the first plane comprises a layer of thermally insulative material between the bearing segments.
Claim 8
Dependent Claim
38 words
A lathe as claimed in claim 1, wherein: a sleeve is mounted within the tailstock and carries a center coaxial with the spindle, and said lathe further includes means for maintaining the center axis in the first plane.
Claim 9
Dependent Claim
41 words
A lathe as claimed in claim 7, wherein: the sleeve mounting is divided in the first plane and the means for maintaining the center axis in the first plane comprises a layer of thermally insulative material between the sleeve mounting sections.
Claim 10
Dependent Claim
31 words
A lathe as claimed in claim 2, wherein the lathe bed is formed with a second aperture on that side of the one pair of slideways remote from the first aperture.
Claim 11
Dependent Claim
15 words
A lathe as claimed in claim 9, wherein: the second aperture accommodates a copying device.
Claim 12
Dependent Claim
60 words
A lathe as claimed in claim 1, including at least one saddle mounted on at least one of the slideways and at least one carriage mounted on each saddle, and wherein each set of carriage slideways is protected from the lathe turnings by a sheet of foil attached at one of its ends to each end of the respective carriage.
Claim 13
Dependent Claim
32 words
A lathe as claimed in claim 11, wherein each carriage is provided with an apertured protective cover, the sheets of foil at each end of the carriage sliding freely within the cover.
Claim 14
Dependent Claim
25 words
A lathe as claimed in claim 1, including three bores in the bedplate housing respective feet on which the lathe bed and headstock are supported.
Claim 15
Dependent Claim
20 words
A lathe as claimed in claim 13, wherein the bedplate is attached to the lathe bed by means of bolts.
Claim 16
Dependent Claim
19 words
A lathe as claimed in claim 13, wherein the length of the feet exceeds the thickness of the bedplate.
Claim 17
Dependent Claim
39 words
A lathe as claimed in claim 1, wherein the means of mounting the lathe bed and headstock on the bedplate are so arranged that the headstock may be mounted at the right-hand or left-hand end of the lathe bed.
Claim 18
Dependent Claim
28 words
A lathe as claimed in claim 16, in which the means of mounting the spindle on the headstock allow the spindle to face either way on the headstock.
Claim 19
Dependent Claim
27 words
A lathe as claimed in claim 16, wherein the means of mounting the center in the tailstock allow the center to face either way in the tailstock.
Claim 20
Dependent Claim
32 words
The lathe as claimed in claim 16, further including a motor and geared transmission for driving the spindle and means for mounting the motor and transmission on either side of the headstock.
Claim 21
Dependent Claim
32 words
A lathe as claimed in claim 19, wherein the motor and transmission are mounted on the headstock in such a way as to reduce the area of contact therebeTween to a minimum.
Claim 22
Dependent Claim
22 words
A lathe as claimed in claim 20, wherein a thermally-insulative space is provided between the motor and transmission assembly and the headstock.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |