GB948129A - Improvements in or relating to sewing machines - Google Patents
Improvements in or relating to sewing machinesInfo
- Publication number
- GB948129A GB948129A GB12147/60A GB1214760A GB948129A GB 948129 A GB948129 A GB 948129A GB 12147/60 A GB12147/60 A GB 12147/60A GB 1214760 A GB1214760 A GB 1214760A GB 948129 A GB948129 A GB 948129A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- cam
- control
- follower
- finger
- 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
- D05B19/00—Programme-controlled sewing machines
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
948,129. Sewing machines. FILOTECNICA SALMOIRAGHI S.p.A. April 6, 1960 [April 7, 1959], No. 12147/60. Heading D1G. In a sewing machine a single manuallyoperable knob is adapted to control the stitch length both when the feed is under automatic control by a cam disc and also when the cam control is inoperative, and a control lever is adapted to reverse the feed when the latter is either under automatic control or not. A rotary feed-control cam 3 co-operates with a follower 5 pivoted at 6. A cam 9 pivoted at 10 co-operates with a finger 7 rigid with follower 5 to disengage the latter from cam 3. A finger 8 rigid with follower 5 abuts an arm 11 pivoted at 12 to one arm 15 of a bell crank. lever 15, 20 pivoted at 16. A spring 27 acts on arm 15 to bias a roller 21, carried by arm 20, against the inner edge 22 of a cam slot formed in a rotatable disc 24. A vertically-slidable spindle 30 is coupled at its lower end by rack and pinion gearing 33 to the feed advance shaft 34. A torsion spring 35 acts on the latter to engage the upper end of spindle 30 with a lug 13 on arm 11 for maintaining arm 11 in contact with finger 8. When follower 5 is disengaged from cam 3 and disc 24 is rotated clockwise by a graduated control knob, lever 15, 20 pivots counterclockwise as roller 21 follows edge 22, whereby arm 11 rocks about finger 8 to vary the position of lug 13 for increasing the stitch length. At any setting of said knob, an arm 40 rigid with lever 15, 20 may be shifted to transfer roller 21 to the outer edge 23 of the cam slot for producing reverse stitching of the same magnitude. Oscillation of follower 5, when engaged with cam 3, is transmitted via finger 8, arm 11 and spindle 30 to shaft 34 for varying the stitch length. The magnitude and direction of the automatically-controlled stitch length may be modified by manipulation of the control knob and arm 40.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT575259 | 1959-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB948129A true GB948129A (en) | 1964-01-29 |
Family
ID=11120418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12147/60A Expired GB948129A (en) | 1959-04-07 | 1960-04-06 | Improvements in or relating to sewing machines |
Country Status (2)
Country | Link |
---|---|
US (1) | US3088427A (en) |
GB (1) | GB948129A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3796172A (en) * | 1972-08-16 | 1974-03-12 | White Sewing Mach | Sewing machine |
US4303031A (en) * | 1980-04-28 | 1981-12-01 | The Singer Company | Linear feed regulating control for a sewing machine |
US4499839A (en) * | 1983-12-03 | 1985-02-19 | The Singer Company | Reverse feed controlling mechanism for a sewing machine |
CN104032490B (en) * | 2014-06-24 | 2016-05-11 | 杰克缝纫机股份有限公司 | Needle gage regulation locking device and sewing machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1031618B (en) * | 1956-10-09 | 1958-06-04 | Pfaff Ag G M | Stitch adjusting device for sewing machines |
-
1960
- 1960-03-31 US US18923A patent/US3088427A/en not_active Expired - Lifetime
- 1960-04-06 GB GB12147/60A patent/GB948129A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3088427A (en) | 1963-05-07 |
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