GB1343832A - Sewing machines - Google Patents
Sewing machinesInfo
- Publication number
- GB1343832A GB1343832A GB2326871*A GB2326871A GB1343832A GB 1343832 A GB1343832 A GB 1343832A GB 2326871 A GB2326871 A GB 2326871A GB 1343832 A GB1343832 A GB 1343832A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feed
- bar
- secured
- lever
- dog
- 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
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
- D05B27/04—Work-feeding means with feed dogs having horizontal and vertical movements arranged above the workpieces
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
- D05B73/04—Lower casings
- D05B73/12—Slides; Needle plates
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
1343832 Upper feed mechanism UNION SPECIAL MACHINE CO 19 April 1971 [6 March 1970] 23268/71 Heading D1G In a sewing machine the top feed mechanism comprises a top feed bar 22 mounted below the sewing machine's throat plate 64, a top feed dog 50 pivoted to the feed bar 22 and means 17, imparting lift and feed motions to that bar. As shown the top and under feed dog bars 22, 23 are disposed alongside each other and receive lift and feed motions from the same shaft (11, Fig. 2 not shown) which is provided with an eccentric portion 17 providing lift and a further eccentric portion (16) producing a feed stroke. The portion 17 is provided with a fixed eccentric 19 embraced by the forked end of the upper feed bar 22 and a free block 20 embraced by a forked end of the lower feed bar 23. The eccentricities of parts 17 and 19 are 180‹ out of phase so that the feed dogs 50, 43 move together towards and together away from the work to clamp the work therebetween during feeding. Feed motion is imparted to the bars by respective links 39, 36 embracing an eccentric 32 keyed to portion 16. Link 36 is apertured at 41 to permit link 39 to engage the inner bar 22 therethrough. The upper feed foot or dog 50 is secured to a carrier lever 48 pivoted at 47 to a carrier mounting bracket 45 secured to feed bar 22. Lever 48 is urged clockwise as seen in Fig. 1 by a spring 58 abutting a stop 57 secured to a rod 53 slidably received in a guide 55 secured to that feed bar. When the presser foot 67 is raised by actuation of lever 65 a pivoted plate 60, connected to lever 65 by rod 70, turn to cause its camming surface 63 to abut the end of rod 53 and urge it against the action of bias spring 58 and to raise the upper feed dog from the material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1708870A | 1970-03-06 | 1970-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1343832A true GB1343832A (en) | 1974-01-16 |
Family
ID=21780659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2326871*A Expired GB1343832A (en) | 1970-03-06 | 1971-04-19 | Sewing machines |
Country Status (2)
Country | Link |
---|---|
US (1) | US3636899A (en) |
GB (1) | GB1343832A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5072451U (en) * | 1973-11-13 | 1975-06-25 | ||
US4166422A (en) * | 1978-09-06 | 1979-09-04 | Porter Robert E | Top feed for sewing machine |
JPS6332704Y2 (en) * | 1979-07-04 | 1988-08-31 | ||
IT1136790B (en) * | 1981-06-02 | 1986-09-03 | Rockwell Rimoldi Spa | TRANSPORT DEVICE SUPERIOR TO GRIFFA IN SEWING MACHINES |
US4372234A (en) * | 1981-12-14 | 1983-02-08 | The Singer Company | Frame structure for a blindstitch hemming machine |
US4449464A (en) * | 1982-10-04 | 1984-05-22 | Porter Robert E | Walking foot feed for sewing machines |
US4448140A (en) * | 1982-10-05 | 1984-05-15 | Porter Robert E | Recessed top feed for sewing machines |
US4589364A (en) * | 1982-12-09 | 1986-05-20 | Pegasus Sewing Machine Mfg. Co. Ltd. | Sewing machine top feed |
US5309854A (en) * | 1992-08-19 | 1994-05-10 | Porter Sewing Machines, Inc. | High lift sewing machine |
US5526761A (en) * | 1992-08-19 | 1996-06-18 | Porter Sewing Machines, Inc. | Method and apparatus for closing mattresses |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1995945A (en) * | 1933-05-09 | 1935-03-26 | Union Special Machine Co | Feeding mechanism for sewing machines |
US2827869A (en) * | 1956-06-20 | 1958-03-25 | Merrow Sales Corp | Feeding mechanism for sewing machines |
FR1333138A (en) * | 1962-06-08 | 1963-07-26 | Rhodiaceta | Sewing Machine Improvements |
US3530809A (en) * | 1969-03-17 | 1970-09-29 | Robert E Porter | Work feeder for sewing machine |
-
1970
- 1970-03-06 US US17088A patent/US3636899A/en not_active Expired - Lifetime
-
1971
- 1971-04-19 GB GB2326871*A patent/GB1343832A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3636899A (en) | 1972-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee | ||
PCNP | Patent ceased through non-payment of renewal fee |