US3749038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material folding and stitching aid
Assignee: Clarkson Ltd W J
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Filing: 1971-12-14
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Granted: 1973-07-31
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Expires: 1991-12-14
Abstract
Abstract A device for use in the folding and stitching of a piece of material to other material comprises a plate with a shaped shallow well in one face thereof, a pair of pivoted blades to swing from an open position to a closed position, a cover plate to fold over onto the plate when material has been positioned in the device shaped slots through said plate and cover plate to receive a guide member and for the stitching passage of a sewing machine needle, and a separate forming plate to enter said well for a material shaping purpose.
Inventors
- 👤 A Dodsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:46
CPC Classifications
D; D05; D05B; D05B39/00; D05B29/00; D05B29/06; D05D; D05D2209/00; D05D2209/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
183 words
A device for use in the folding and stitching of a piece of material, said device comprising a plate, a shaped well in one surface of the plate, the shape of said well being that required for the finished folded shape of the material, said well having its peripheral edge running parallel to and alongside the outside edge of a slot formed through the plate, said slot being shaped to suit at least one required stitching line, two blades each pivoted to said plate near a respective end of said slot for movement between a first open position lying to the outside of the said outside edge of the slot and a second closed position lying over the well within the inside edge of the slot and a flat forming plate complementary in shape to said well, said forming plate being used to press a piece of material into said well for the material edges to be folded over the edge of the forming plate and held by the two blades when moved into their closed position when the forming plate is withdrawn.
Claim 2
Independent Claim
183 words
A device for use in the folding and stitching of a piece of material, said device comprising a plate, a shaped well in one surface of the plate, the shape of said well being that required for the finished folded shape of the material, said well having its peripheral edge running parallel to and alongside the outside edge of a slot formed through the plate, said slot being shaped to suit at least one required stitching line, two blades each pivoted to said plate near a respective end of said slot for movement between a first open position lying to the outside of the said outside edge of the slot and a second closed position lying over the well within the inside edge of the slot and a flat forming plate complementary in shape to said well, said forming plate being used to press a piece of material into said well for the material edges to be folded over the edge of the forming plate and held by the two blades when moved into their closed position when the forming plate is withdrawn.
Claim 3
Dependent Claim
69 words
A device as claimed in claim 1, wherein a cover plate is hinged to the said plate along one edge thereof to be movable between open and closed positions respectively exposing and covering the well and the blades, said cover plate being formed with a further slot which corresponds to the slot in said plate and overlies the slot when the cover plate is moved to the closed position.
Claim 4
Dependent Claim
20 words
A device as claimed in claim 1, wherein the surfaces of the blades facing away from said plate are roughened.
Claim 5
Dependent Claim
23 words
A device as claimed in claim 1, wherein at least part of the surface of each blade facing towards said plate is roughened.
Claim 6
Dependent Claim
23 words
A device as claimed in claim 1, wherein that part of the plate forming the base of the well has a roughened surface.
Claim 7
Dependent Claim
31 words
A device as claimed in claim 1, wherein surfaces to be in contact with material during stitching have non-slip facings constituted by a layer of baize adhered to the underlying surface.
Claim 8
Dependent Claim
24 words
A device as claimed in claim 1, wherein releasable catches are provided on said plate for locking the two blades in their closed positions.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |