US4008633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi spindle lathes
Assignee: Wickman Machine Tool Sales Ltd
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Filing: 1975-09-03
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Granted: 1977-02-22
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Expires: 1995-09-03
Abstract
Abstract A multi spindle lathe with a drum carrying a number of rotatable spindles each having a chuck and chuck operating means each spindle having an associated proximity switch probe which senses whether the chuck is open or closed and permits progression to the next part of the operating cycle of the lathe if the chuck has correctly operated.
Inventors
- 👤 Harold James Gilbert, deceased
- 👤 Edmund Alexander McConnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:34
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/002; B23Q17/003; B23B; B23B9/00; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/20; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2524; Y10T82/2572
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
74 words
In a multi-spindle lathe having a plurality of chucks on the work spindle, the combination comprising: operating means movable axially of said work spindle for opening and closing a chuck on said spindle; proximity switch means mounted adjacent said operating means and constructed and arranged to sense changes in the axial position thereof; and indicating means controlled by said proximity switch means for providing an indication of whether said chuck is opened or closed.
Claim 2
Dependent Claim
74 words
In a multi-spindle lathe having a plurality of chucks on the work spindle, the combination comprising: operating means movable axially of said work spindle for opening and closing a chuck on said spindle; proximity switch means mounted adjacent said operating means and constructed and arranged to sense changes in the axial position thereof; and indicating means controlled by said proximity switch means for providing an indication of whether said chuck is opened or closed.
Claim 3
Dependent Claim
30 words
The combination set forth in claim 1 wherein said indicating means is constructed and arranged to generate a predetermined signal when said operating means is positioned to close said chuck.
Claim 4
Dependent Claim
50 words
The combination set forth in claim 1 wherein said operating means further includes a block mounted for movement with said operating means along a predetermined path and wherein said proximity switch means further includes a proximity probe mounted adjacent said path for sensing changes in the position of said block.
Claim 5
Dependent Claim
41 words
The combination set forth in claim 2 further comprising: control means for inhibiting the operation of said lathe; and means responsive to said predetermined signal for releasing said control means to permit the initiation of the next operation of said lathe.
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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |