GB421957A - Rotary hook and bobbin-case device for sewing machines - Google Patents
Rotary hook and bobbin-case device for sewing machinesInfo
- Publication number
- GB421957A GB421957A GB21610/34A GB2161034A GB421957A GB 421957 A GB421957 A GB 421957A GB 21610/34 A GB21610/34 A GB 21610/34A GB 2161034 A GB2161034 A GB 2161034A GB 421957 A GB421957 A GB 421957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bobbin
- raceway
- hook
- case
- loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009958 sewing Methods 0.000 title abstract 2
- 210000003323 beak Anatomy 0.000 abstract 1
- 230000013011 mating Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
- D05B57/10—Shuttles
- D05B57/14—Shuttles with rotary hooks
Abstract
421,957. Sewing machines. SINGER MANUFACTURING CO., Elizabeth, New Jersey, U.S.A. July 24, 1934, No. 21610. Convention date, May 12. [Class 112] In a rotary hook device provided with a circular raceway for the cylindrical bobbin case of the type described in Specifications 12609 /11 and 18023/11, [both in Claas 112], the bobbin case is provided with a bearing rib with a gap forming a stationary spur for detaining the needle loop seized by hook. The bobbin thread tension device is as described in Specification 370,304. The machine illustrated has the usual horizontal hook shaft 5 making two revolutions to each complete reciprocation of the needle 1. The hook shaft carries on a cupshaped body 6 having a raceway 7 for the bobbin. The raceway is cut away at one side to form a hook-seizing beak 8 with an inclined loop-spreading inner edge 9. The peripheral bearing rib 13 of the bobbin case element 14 is journalled in the raceway 7. The case has a loop detaining spur 16 and a flange 17 with a rotation-restraining notch 18 entered by a tongue 19 on the bar 20. The bobbin case element 14 has a bar 24 carrying the usual stud 25 by which the mating bobbin-case element 28 carrying the bobbin 29 and the under-thread tension device 30 is attached. A chamfer 31 on the bobbin case facilitates the spreading of the needle loop.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US725282A US1995278A (en) | 1934-05-12 | 1934-05-12 | Rotary hook and bobbin-case device for sewing machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB421957A true GB421957A (en) | 1935-01-02 |
Family
ID=24913904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21610/34A Expired GB421957A (en) | 1934-05-12 | 1934-07-24 | Rotary hook and bobbin-case device for sewing machines |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1995278A (en) |
| FR (1) | FR777706A (en) |
| GB (1) | GB421957A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2892428A (en) * | 1955-02-25 | 1959-06-30 | Singer Mfg Co | Loop-takers for sewing machines |
| CH370949A (en) * | 1958-05-07 | 1963-07-31 | Borletti Spa | Swiveling shuttle for sewing machines with oscillating shuttle |
| US2990794A (en) * | 1959-04-06 | 1961-07-04 | Singer Mfg Co | Bobbin thread case opener mechanism |
| US3074367A (en) * | 1960-05-06 | 1963-01-22 | Singer Mfg Co | Rotary hook for sewing machines |
| US3486473A (en) * | 1967-12-29 | 1969-12-30 | Singer Co | Non-spill bobbin case for sewing machines |
| DE2028371A1 (en) * | 1969-06-09 | 1971-02-04 | Watanabe, Kenµ, Shibata (Japan) | Bobbin case for sewing machines |
| DE2803971C2 (en) * | 1978-01-30 | 1981-10-01 | Dürkoppwerke GmbH, 4800 Bielefeld | Lockstitch sewing machine |
-
1934
- 1934-05-12 US US725282A patent/US1995278A/en not_active Expired - Lifetime
- 1934-07-24 GB GB21610/34A patent/GB421957A/en not_active Expired
- 1934-08-16 FR FR777706D patent/FR777706A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR777706A (en) | 1935-02-27 |
| US1995278A (en) | 1935-03-19 |
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