US3556368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for the feed of workpieces in a machine tool
Assignee: PEDDINGHAUS PAUL FERD HASSLINGHAUSER STR 156 5820 GEVELSBERG GERMANY
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Filing: 1968-09-10
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Granted: 1971-01-19
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Expires: 1988-09-10
Abstract
Abstract The invention is of feed and control means for feeding elongated workpieces in series through one or more machine tools intermittently, when machining operations (for example drilling) are to be performed thereon at predeterminedly spaced stations whilst the workpiece is stationary, and it resides essentially in combined feed and measuring means, the latter affording signals which control the feed: means are included to ensure passage of a sequence of separate workpieces.
Inventors
- 👤 Vidal Lucien Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:40
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22; B21; B21D; B21D43/00; B21D43/02; B21D43/021; B21D43/04; B21D43/08; B21D43/09; B65; B65H; B65H20/00; B65H20/02; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4455
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
Apparatus for feeding and measuring elongated workpieces fed sequentially, to a machine tool performing repetitive operations on the workpieces comprising: a first pair of rollers upstream of a work station on a machine tool and driven intermittently for advancing therebetween individual workpieces, driven means for driving a roller of the first pair of rollers intermittently for advancing said individual workpieces through said work station at selected increments of length, a second pair of rollers disposed downstream of said work station for advancing the workpieces through said work station incrementally similarly to the first pair of rollers and subsequently to cessation of advancement by said first pair of rollers, second driven means for driving a roller of the second pair of rollers intermittently for advancing individual workpieces incrementally through said work station, and detection and control means detecting a downstream end of each individual elongated workpiece commanding the second driven means and second pair of rollers to advance the individual workpieces through said work station.
Claim 2
Dependent Claim
164 words
Apparatus for feeding and measuring elongated workpieces fed sequentially, to a machine tool performing repetitive operations on the workpieces comprising: a first pair of rollers upstream of a work station on a machine tool and driven intermittently for advancing therebetween individual workpieces, driven means for driving a roller of the first pair of rollers intermittently for advancing said individual workpieces through said work station at selected increments of length, a second pair of rollers disposed downstream of said work station for advancing the workpieces through said work station incrementally similarly to the first pair of rollers and subsequently to cessation of advancement by said first pair of rollers, second driven means for driving a roller of the second pair of rollers intermittently for advancing individual workpieces incrementally through said work station, and detection and control means detecting a downstream end of each individual elongated workpiece commanding the second driven means and second pair of rollers to advance the individual workpieces through said work station.
Claim 3
Dependent Claim
49 words
Apparatus according to claim 1, in which the first pair of rollers and the second pair of rollers each includes a measuring roller, means maintaining the measuring rollers of both pair of rollers in phase for accurately measuring the workpiece lengths, and measuring means responsive to said measuring rollers.
Claim 4
Dependent Claim
21 words
Apparatus according to claim 1, in which said detection means comprises means responsive to the presence or absence of a workpiece.
Claim 5
Dependent Claim
15 words
Apparatus according to claim 1, including for each pair of rollers an individual drive motor.
Claim 6
Dependent Claim
44 words
Apparatus according to claim 1, in which the first pair of rollers and the second pair of rollers each includes a measuring roller, and for each measuring roller means mounting the measuring rollers for bearing on the individual workpiece and functioning as pressure rollers.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |