GB285601A - Improvements in looper operating mechanisms for sewing machines - Google Patents
Improvements in looper operating mechanisms for sewing machinesInfo
- Publication number
- GB285601A GB285601A GB3133226A GB3133226A GB285601A GB 285601 A GB285601 A GB 285601A GB 3133226 A GB3133226 A GB 3133226A GB 3133226 A GB3133226 A GB 3133226A GB 285601 A GB285601 A GB 285601A
- Authority
- GB
- United Kingdom
- Prior art keywords
- looper
- crank
- lever
- needle
- link
- 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
- D05B15/00—Machines for sewing leather goods
- D05B15/02—Shoe sewing machines
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
285,601. Armstrong, J. J. V., (Union Special Machine Co.). Dec. 10, 1926. Chain stitching and double loop stitching; needles, driving.-A threaded looper 9 is oscillated by mechanism comprising a crank 29 on the main shaft, a link 30 pivoted to an elbow lever 32 oscillating about a fixed pivot 33, and a link 34 connected to an intermediate point on the elbow lever and to a crank on the looper-shaft 8. During the movement of the crank represented by the arc b the looper is retracted, while its forward movement is represented by the much shorter arc a, thus providing for a rapid entry of the needle-loop. The needle-avoiding movements of the looper are imparted to the loopershaft by an eccentric 28 connected by a strap to a lever 23 linked to a sleeve 25 mounted between collars on the shaft. The needle-bar 5 is actuated from a crank-pin 16 connected by a link 15 to a lever 12.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84402A US1735628A (en) | 1926-01-28 | 1926-01-28 | Looper-operating mechanism for sewing machines |
GB3133226A GB285601A (en) | 1926-12-10 | 1926-12-10 | Improvements in looper operating mechanisms for sewing machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3133226A GB285601A (en) | 1926-12-10 | 1926-12-10 | Improvements in looper operating mechanisms for sewing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB285601A true GB285601A (en) | 1928-02-23 |
Family
ID=10321549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3133226A Expired GB285601A (en) | 1926-01-28 | 1926-12-10 | Improvements in looper operating mechanisms for sewing machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB285601A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3783810A (en) * | 1970-11-18 | 1974-01-08 | Rimoldi C Spa Virginio | Looper driving device with periodically variable speed in zig-zag chainstitch sewing machines |
-
1926
- 1926-12-10 GB GB3133226A patent/GB285601A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3783810A (en) * | 1970-11-18 | 1974-01-08 | Rimoldi C Spa Virginio | Looper driving device with periodically variable speed in zig-zag chainstitch sewing machines |
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