US3760537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for smoothing the surface of turned wood elements
Assignee: ALME SpA OFF MEC DI
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Filing: 1970-03-25
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Granted: 1973-09-25
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Expires: 1990-03-25
Abstract
Abstract Device applicable to the carriage of lathes provided with copying template, the device comprising rollers which are rotated by a motor and on which two looped tapes are wound up, the outward facing surface thereof being coated with abrasive material. The rollers are mounted on two rocking arms, the rocking movement of which is controlled by extensions fast with said arms and engaging the shaped profile of the lathe template as the carriage moves. Two pairs of the rollers are positioned at the surface of a wood piece mounted on the lathe. This wood piece is turned by tools mounted on the carriage and controlled by the template and just after turning is rough-shaped and smoothed by the tapes.
Inventors
- 👤 C Bovati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:14
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/04; B24B21/12; B24B21/14; B24B21/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
252 words
A device for smoothing the surface of turned wooD pieces and applicable to the carriage of a lathe provided with a copying template, comprising a base attached to the carriage of a lathe, a motor mounted on said base and having an elongated projecting shaft on which at least two rollers are keyed, at least a first and a second arm rocking independently of each other and freely rotably mounted about the axis of said motor shaft, at least a first and a second pair of shaped pressure rollers juxtaposed to each other and freely rotably mounted on pins carried by a first plate secured to the associated rocking arm and, respectively, carried by a second plate secured to said second rocking arm, at least one rod projecting from said first rocking arm and carrying at least two rollers freely rotable on said rod, at least two looped tapes having the outward facing surface thereof coated with abrasive material, one of these tapes being slidably mounted on said pair of pressure rollers carried by said first plate, on one roller of said shaft and one roller of said rod, respectively, and the other tape being also slidably mounted on said pair of pressure rollers carried by said second plate, on the other roller of said shaft and the other roller of said rod, respectively, each of said first and second arms having an extension extending towards said template fast with the lathe frame and abutting on the shaped profile of the template.
Claim 2
Independent Claim
252 words
A device for smoothing the surface of turned wooD pieces and applicable to the carriage of a lathe provided with a copying template, comprising a base attached to the carriage of a lathe, a motor mounted on said base and having an elongated projecting shaft on which at least two rollers are keyed, at least a first and a second arm rocking independently of each other and freely rotably mounted about the axis of said motor shaft, at least a first and a second pair of shaped pressure rollers juxtaposed to each other and freely rotably mounted on pins carried by a first plate secured to the associated rocking arm and, respectively, carried by a second plate secured to said second rocking arm, at least one rod projecting from said first rocking arm and carrying at least two rollers freely rotable on said rod, at least two looped tapes having the outward facing surface thereof coated with abrasive material, one of these tapes being slidably mounted on said pair of pressure rollers carried by said first plate, on one roller of said shaft and one roller of said rod, respectively, and the other tape being also slidably mounted on said pair of pressure rollers carried by said second plate, on the other roller of said shaft and the other roller of said rod, respectively, each of said first and second arms having an extension extending towards said template fast with the lathe frame and abutting on the shaped profile of the template.
Claim 3
Dependent Claim
70 words
A device according to claim 1, comprising at least two rollers independent of each other and freely rotable on pins, each of which is carried by a lever which, in turn, is freely rotably mounted on a rod carried by said first rocking arm, there operating on each of said levers a spring urging the rollers carried by said levers against one and respectively the other of said looped tapes.
Claim 4
Dependent Claim
63 words
A device according to claim 2, comprising at least a first and a second spring, one end of which is attached to said base and the other end of which is attached to said first and said second rocking arm, respectively, said springs operating on said rocking arms to keep said extensions at an urged condition on the shaped profile of said template.
References Cited (Backward Citations)
CA447589A
Cited
US2589017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |