GB812298A - Improvements in or relating to stitch adjusting mechanisms for sewing machines - Google Patents
Improvements in or relating to stitch adjusting mechanisms for sewing machinesInfo
- Publication number
- GB812298A GB812298A GB26352/56A GB2635256A GB812298A GB 812298 A GB812298 A GB 812298A GB 26352/56 A GB26352/56 A GB 26352/56A GB 2635256 A GB2635256 A GB 2635256A GB 812298 A GB812298 A GB 812298A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- arm
- shaft
- lever
- pivoted
- 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
- D05B27/00—Work-feeding means
- D05B27/22—Work-feeding means with means for setting length of stitch
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
812,298. Sewing machines. PFAFF A-G., G.M. Aug. 29, 1956 [Sept. 12, 1955], No. 26352/56. Class 112 In a sewing machine having a stitchadjusting mechanism comprising a disc 32 connected to an operating knob 29 and formed with an aperture 33 with two abutment edges 34 and 35 for limiting the movement of a stitch-length defining lever 46 at positions corresponding to the same stitch length for forward and reverse feed respectively, said edges are continuously curved in asymmetric relationship and their radial distances from a neutral circle concentric with the axis of rotation of said disc are inversely related to each other, and said disc is co-axial with a stitchsetting shaft 62 which is part of an operative connection between lever 46 and an operating knob 63. Lever 46 is pivoted on a pin 44 carried by a fixed bracket 41, and is provided with a pin 48 which is disposed in aperture 33 and is spring-biased against edge 34, controlling the stitch length in the forward direction. Disc 32 is connected to knob 29 by a hollow shaft 28 which is journalled in a fixed sleeve 27 and journals shaft 62. The latter carries at its inner end three radial arms 58, 66 and 68. A spring 64 connected between arm 66 and an extension of pin 44 normally biases arm. 68 against the latter. Clockwise movement of shaft 62, imparted thereto by knob 63, carries arm 58 into engagement with a pin 57 provided on lever 46, and thereby shifts pin 48 from edge 34 to edge 35 controlling the stitch length in the reverse direction. Lever 46 is connected by a link 20 to an arm 18 on a stitch-adjusting member 14 pivoted at 15 on the machine frame. A spring 53, acting on a second arm of member 14. serves to bias pin 48 against edge 34. A block 13, slidable in a guide groove in member 14, is pivoted at 12 to a bar 8. One end of the latter is forked to embrace a cam 7 on the machine arm shaft 5, and the other end is pivoted to a crank 9 on a shaft 11 controlling the feed advance movement of a feed dog.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP14818A DE1027970B (en) | 1955-09-12 | 1955-09-12 | Stitch adjusting device for sewing machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB812298A true GB812298A (en) | 1959-04-22 |
Family
ID=30774863
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26352/56A Expired GB812298A (en) | 1955-09-12 | 1956-08-29 | Improvements in or relating to stitch adjusting mechanisms for sewing machines |
| GB31379/57A Expired GB867805A (en) | 1955-09-12 | 1957-10-08 | Improvements in or relating to stitch adjusting mechanisms in sewing machines |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31379/57A Expired GB867805A (en) | 1955-09-12 | 1957-10-08 | Improvements in or relating to stitch adjusting mechanisms in sewing machines |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2844114A (en) |
| CH (1) | CH343216A (en) |
| DE (1) | DE1027970B (en) |
| FR (2) | FR1155837A (en) |
| GB (2) | GB812298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217404A (en) * | 2016-03-21 | 2017-09-29 | 浙江美机缝纫机有限公司 | Tool backstitches the sewing machine of operating mechanism |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL105247C (en) * | 1956-06-18 | |||
| FR1194172A (en) * | 1957-04-12 | 1959-11-06 | ||
| FR1219700A (en) * | 1958-04-12 | 1960-05-19 | Borletti Spa | Device for adjusting the stroke limits of the movement amplitude control lever of the cloth pusher dog in sewing machines |
| NL247583A (en) * | 1959-01-30 | |||
| GB981664A (en) * | 1962-08-08 | 1965-01-27 | Pfaff Ag G M | Improvements in or relating to drive mechanisms for feed dogs of sewing machines |
| US3253685A (en) * | 1963-07-25 | 1966-05-31 | Torrington Co | Clutch and brakes for sewing machine |
| NL136919C (en) * | 1964-03-17 | |||
| US3339509A (en) * | 1965-01-04 | 1967-09-05 | Union Special Machine Co | Feed mechanism for sewing machines |
| CN104571219A (en) * | 2014-12-17 | 2015-04-29 | 深圳市华宝电子科技有限公司 | Device and method for automatically controlling temperature of vehicle-mounted equipment |
| CN105019152B (en) * | 2015-06-30 | 2017-10-10 | 拓卡奔马机电科技有限公司 | A kind of cloth feeding mechanism |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE634748C (en) * | 1936-09-02 | Phoenix Naehmaschinen Akt Ges | Stitch adjusting device for sewing machines | |
| GB177390A (en) * | 1921-03-12 | 1922-03-30 | Hexagon Sewing Machine Company | Improvements in sewing machines |
| US2119492A (en) * | 1935-12-19 | 1938-05-31 | Union Special Machine Co | Feed mechanism for sewing machines |
| US2557992A (en) * | 1948-06-22 | 1951-06-26 | Leonard J Nilles | Reverse stitch attachment for sewing machines |
| CH288136A (en) * | 1950-04-11 | 1953-01-15 | Zuendapp Werke Gmbh | Stitch adjustment device on a sewing machine. |
| CH307292A (en) * | 1951-10-15 | 1955-05-31 | Anker Werke Ag | Operating means having a handle for adjusting the stitch length on a sewing machine. |
| US2685266A (en) * | 1951-12-14 | 1954-08-03 | Vittorio Necchi S P A | Stitch control lever limiting device |
-
1955
- 1955-09-12 DE DEP14818A patent/DE1027970B/en active Pending
-
1956
- 1956-08-15 CH CH343216D patent/CH343216A/en unknown
- 1956-08-18 FR FR1155837D patent/FR1155837A/en not_active Expired
- 1956-08-29 GB GB26352/56A patent/GB812298A/en not_active Expired
- 1956-09-10 US US608915A patent/US2844114A/en not_active Expired - Lifetime
-
1957
- 1957-09-12 FR FR72257D patent/FR72257E/en not_active Expired
- 1957-10-08 GB GB31379/57A patent/GB867805A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217404A (en) * | 2016-03-21 | 2017-09-29 | 浙江美机缝纫机有限公司 | Tool backstitches the sewing machine of operating mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1155837A (en) | 1958-05-08 |
| CH343216A (en) | 1959-12-15 |
| FR72257E (en) | 1960-03-31 |
| DE1027970B (en) | 1958-04-10 |
| GB867805A (en) | 1961-05-10 |
| US2844114A (en) | 1958-07-22 |
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