US3903818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the making of straight seams, for example false creases in trousers
Assignee: Virginio Rimoldi and Co SpA
•
Filing: 1974-04-08
•
Granted: 1975-09-09
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Expires: 1994-04-08
Abstract
Abstract An apparatus for the making of straight seams comprises a sewing machine and rectilinear guide means along which a workpiece retaining means moves to keep the workpiece aligned with the workpiece feeding means of the sewing machine.
Inventors
- 👤 Nerino Marforio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:03
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/10; D05B35/105; D05B65/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
177 words
In a seaming apparatus which includes a bed having a sewing surface and a sewing machine having means for feeding and for sewing a workpiece, the combination comprising, a. rectilinear guide means mounted on the sewing surface and extending from a position adjacent a needle of the sewing machine in a direction substantially parallel to the direction of travel of a workpiece when it is being seamed; b. retaining means mounted within said rectilinear guide means for sliding movement in a forward stroke toward a most forward location adjacent the needles of the sewing machine and a return stroke away from the sewing machine, said retaining means, (b), comprising, 1. a pad slidably disposed within said guide means, 2. a support pivotally mounted on that end of said pad nearest to the sewing machine, and 3. means on said support attaching said pad to the workpiece, and c. means attached to that end of said pad furtherest from the sewing machine to bias said retaining means away from the sewing machine and to thereby tension the workpiece.
Claim 2
Dependent Claim
177 words
In a seaming apparatus which includes a bed having a sewing surface and a sewing machine having means for feeding and for sewing a workpiece, the combination comprising, a. rectilinear guide means mounted on the sewing surface and extending from a position adjacent a needle of the sewing machine in a direction substantially parallel to the direction of travel of a workpiece when it is being seamed; b. retaining means mounted within said rectilinear guide means for sliding movement in a forward stroke toward a most forward location adjacent the needles of the sewing machine and a return stroke away from the sewing machine, said retaining means, (b), comprising, 1. a pad slidably disposed within said guide means, 2. a support pivotally mounted on that end of said pad nearest to the sewing machine, and 3. means on said support attaching said pad to the workpiece, and c. means attached to that end of said pad furtherest from the sewing machine to bias said retaining means away from the sewing machine and to thereby tension the workpiece.
Claim 3
Dependent Claim
61 words
An apparatus according to claim 1, in which the rectilinear guide means are provided at the end near the sewing means of the sewing machine with a sliding ramp, on which the retaining means slide down at the end of their forward stroke, the said sliding ramp being downward inclined so as to cause the sliding down of the retaining means.
Claim 4
Dependent Claim
16 words
a support pivotally mounted on that end of said pad nearest to the sewing machine, and
Claim 5
Dependent Claim
16 words
a support pivotally mounted on that end of said pad nearest to the sewing machine, and
Claim 6
Dependent Claim
48 words
An apparatus according to claim 1, in which the rectilinear guide means are formed of a hollow rail to receive the said retaining means; the said rail being provided at the upper part with a slit, through which the said retaining means project and along which they move.
Claim 7
Dependent Claim
41 words
means on said support attaching said pad to the workpiece, and c. means attached to that end of said pad furtherest from the sewing machine to bias said retaining means away from the sewing machine and to thereby tension the workpiece.
Claim 8
Dependent Claim
41 words
means on said support attaching said pad to the workpiece, and c. means attached to that end of said pad furtherest from the sewing machine to bias said retaining means away from the sewing machine and to thereby tension the workpiece.
Claim 9
Dependent Claim
54 words
An apparatus in accordance with claim 1 in which said rectilinear guide means are formed of a hollow rail to receive the said retaining means, the said rail being provided at the upper part thereof with a slit through which said means located on said support to attach said support to the workpiece projects.
Claim 10
Dependent Claim
38 words
An apparatus according to claim 4, in which the rectIlinear guide means are fitted with a stop for arresting the retaining means during the return stroke, the said stop being moveably positioned along the said rectilinear guide means.
Claim 11
Dependent Claim
38 words
An apparatus according to claim 5, in which the stop comprises a base inserted into the hollow rail of the rectilinear guide means, the said base being provided with spring for damping the impact of the retaining means.
Claim 12
Dependent Claim
23 words
An apparatus as defined in claim 1 wherein said means on said support for attaching said support to the workpiece comprises a pin.
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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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |