GB1257133A - - Google Patents
Info
- Publication number
- GB1257133A GB1257133A GB1257133DA GB1257133A GB 1257133 A GB1257133 A GB 1257133A GB 1257133D A GB1257133D A GB 1257133DA GB 1257133 A GB1257133 A GB 1257133A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- spindle
- spring
- engages
- cam
- 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
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
- D05B73/005—Doors or covers for accessing inner parts of the machine; Security devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
1,257,133. Upper thread tensioner. MEFINA S.A. 25 Nov., 1969 [6 Dec., 1968], No. 57510/69. Heading D1G. An adjustable tensioning device in a sewing machine comprises a spindle 6 carrying at least two tension discs 5 gripping the upper thread, a spring 8 acting indirectly on the spindle to urge the discs together, a knurled adjusting knob 9 controlling a cam 11 which engages a first lever 14, and a second lever 23 engaging both the spring and the spindle. As shown, both levers are pivoted side by side on the common spindle 15. The lever 14 is connected to spring 8 at one end thereof by an adjustable nut and bolt 20, the end of lever 23 remote from its pivot has a fork engaging a slot in spindle 6. A side projection 27 on lever 23 engages below spring 8. The cam 11 has notches 12 which cooperate with the free end 13 of lever 14 to define a number of tension adjusting positions, the knob 9 having an appropriate scale. A pin (29, Fig. 3 not shown) engages slots (28) in the discs 5 to prevent their rotation. The presser foot lifting lever 56 carries a pivoted rod 58 which engages lever 23 at 61 to release the thread tension when the presser foot is raised. In modifications the levers 14, 23 may be disposed in super position, may have separate pivots and the knob and cam may be disposed horizontally. When two upper threads are employed in the machine the threads are guided to pass round the tensioner in opposite directions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1824068A CH485901A (en) | 1968-12-06 | 1968-12-06 | Sewing machine upper thread tension adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1257133A true GB1257133A (en) | 1971-12-15 |
Family
ID=4431546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1257133D Expired GB1257133A (en) | 1968-12-06 | 1969-11-25 |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3557731A (en) |
| JP (1) | JPS5218621B1 (en) |
| AT (2) | AT304239B (en) |
| BE (1) | BE741592A (en) |
| BR (1) | BR6914674D0 (en) |
| CH (1) | CH485901A (en) |
| DE (1) | DE1960665A1 (en) |
| DK (1) | DK133562B (en) |
| ES (1) | ES373934A1 (en) |
| FR (1) | FR2025493A1 (en) |
| GB (1) | GB1257133A (en) |
| IE (1) | IE33859B1 (en) |
| NL (1) | NL6918227A (en) |
| SE (1) | SE357985B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3721205A (en) * | 1970-02-09 | 1973-03-20 | Aisin Seiki | Tension device for a sewing machine |
| US3863581A (en) * | 1972-09-13 | 1975-02-04 | Maruzen Sewing Machine | Thread tensioning device for sewing machines |
| US3841248A (en) * | 1973-07-23 | 1974-10-15 | Singer Co | Needle thread tensioning module for lock stitch sewing machines |
| US3978802A (en) * | 1974-11-08 | 1976-09-07 | White Sewing Machine Company | Sewing machine thread tensioner |
| US4141306A (en) * | 1976-12-10 | 1979-02-27 | The Singer Company | Thread tensioning apparatus for sewing machines |
| US4221180A (en) * | 1977-09-21 | 1980-09-09 | The Singer Company | Compact upper thread tension device |
| US4180006A (en) * | 1978-03-31 | 1979-12-25 | The Singer Company | Tension selecting mechanism for sewing machines |
| US4372502A (en) * | 1981-03-23 | 1983-02-08 | The Singer Company | Adjustable thread tensioning device for a sewing machine |
| US4453480A (en) * | 1983-07-11 | 1984-06-12 | The Singer Company | Thread tensioning module for a sewing machine |
| JP5902969B2 (en) * | 2012-03-10 | 2016-04-13 | 蛇の目ミシン工業株式会社 | Sewing machine with lower thread winding guide for retractable thread stand |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA562397A (en) * | 1958-08-26 | Kleemann Karl | Thread tension release mechanism for sewing machines | |
| US1234322A (en) * | 1915-10-08 | 1917-07-24 | Singer Mfg Co | Needle-thread-controlling device for sewing-machines. |
| US1518494A (en) * | 1922-05-02 | 1924-12-09 | Elcock Robert | Tensioning device for sewing machines |
| BE492539A (en) * | 1948-12-20 |
-
1968
- 1968-12-06 CH CH1824068A patent/CH485901A/en not_active IP Right Cessation
-
1969
- 1969-11-12 BE BE741592D patent/BE741592A/xx unknown
- 1969-11-17 AT AT1073269A patent/AT304239B/en not_active IP Right Cessation
- 1969-11-17 AT AT775771A patent/AT314951B/en not_active IP Right Cessation
- 1969-11-24 US US879417A patent/US3557731A/en not_active Expired - Lifetime
- 1969-11-25 IE IE1587/69A patent/IE33859B1/en unknown
- 1969-11-25 GB GB1257133D patent/GB1257133A/en not_active Expired
- 1969-11-26 ES ES373934A patent/ES373934A1/en not_active Expired
- 1969-11-28 DE DE19691960665 patent/DE1960665A1/en active Pending
- 1969-12-01 BR BR214674/69A patent/BR6914674D0/en unknown
- 1969-12-01 FR FR6941386A patent/FR2025493A1/fr not_active Withdrawn
- 1969-12-04 NL NL6918227A patent/NL6918227A/xx unknown
- 1969-12-05 SE SE16766/69A patent/SE357985B/xx unknown
- 1969-12-05 DK DK644069AA patent/DK133562B/en unknown
- 1969-12-06 JP JP44098270A patent/JPS5218621B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IE33859L (en) | 1970-05-06 |
| AT304239B (en) | 1972-12-27 |
| SE357985B (en) | 1973-07-16 |
| BR6914674D0 (en) | 1973-01-11 |
| FR2025493A1 (en) | 1970-09-11 |
| DK133562C (en) | 1976-12-06 |
| BE741592A (en) | 1970-04-16 |
| DK133562B (en) | 1976-06-08 |
| DE1960665A1 (en) | 1970-06-18 |
| JPS5218621B1 (en) | 1977-05-23 |
| ES373934A1 (en) | 1972-03-16 |
| AT314951B (en) | 1974-05-10 |
| IE33859B1 (en) | 1974-11-27 |
| NL6918227A (en) | 1970-06-09 |
| CH485901A (en) | 1970-02-15 |
| US3557731A (en) | 1971-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |