GB316509A - Rotary hook mechanisms for sewing machines - Google Patents
Rotary hook mechanisms for sewing machinesInfo
- Publication number
- GB316509A GB316509A GB47/29A GB4729A GB316509A GB 316509 A GB316509 A GB 316509A GB 47/29 A GB47/29 A GB 47/29A GB 4729 A GB4729 A GB 4729A GB 316509 A GB316509 A GB 316509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hook
- shaft
- rocker
- thread
- projection
- 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
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
- D05B57/10—Shuttles
- D05B57/14—Shuttles with rotary hooks
-
- 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
316,509. Fairweather, W., (Singer Manufacturing Co.). Jan. 1, 1929. Lock-stitching by hooks.- In a vertical axis rotary hook lock-stitch sewing machine, means are provided for imparting a limited rotation to the thread case in a direction opposite to that of the hook, to enable the under thread to clear the projection which prevents the case from rotating with the hook. The hook is rotated twice to every reciprocation of the needle by the main driving shaft, belt 21, shaft 19, and bevel gears 29, 30. The thread case 39 has a lug 40 loosely entering a notch 41 in the throat plate 15 to limit its rotation, and a lateral projection 42 co-operates with a finger 44 to move it slightly in a direction opposite that of the hook to enable the under thread to clear the notch 41 and projection 40. The finger 44 is adjustably mounted on bracket 65 on a forked rocker 46 having arms 49, 50 provided with bearing bosses 51, 52 and aligned trunnions 53, 54. A screw 55 connects the rocker to a pitman 57 moved by an eccentric 60 on the shaft 19. A spring 61 is interposed between the joint of the rocker with the pitman to allow the slight swinging movements of the rocker about its horizontal fulcrum. Lubricating holes and channels 71 - - 74 and 65 - - 68 are provided for the shaft 19 and channels 63 for the hook shaft.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US266239A US1750447A (en) | 1928-03-31 | 1928-03-31 | Rotary-hook mechanism for sewing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB316509A true GB316509A (en) | 1929-08-01 |
Family
ID=23013747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB47/29A Expired GB316509A (en) | 1928-03-31 | 1929-01-01 | Rotary hook mechanisms for sewing machines |
Country Status (3)
Country | Link |
---|---|
US (1) | US1750447A (en) |
DE (1) | DE513906C (en) |
GB (1) | GB316509A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2476061A (en) * | 1946-07-06 | 1949-07-12 | Singer Mfg Co | Loop-taker mechanism for sewing machines |
US3029762A (en) * | 1960-09-23 | 1962-04-17 | Singer Mfg Co | Shuttle mechanism for sewing machines |
-
1928
- 1928-03-31 US US266239A patent/US1750447A/en not_active Expired - Lifetime
-
1929
- 1929-01-01 GB GB47/29A patent/GB316509A/en not_active Expired
- 1929-02-16 DE DES89933D patent/DE513906C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE513906C (en) | 1930-12-04 |
US1750447A (en) | 1930-03-11 |
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