GB910277A - Improvements in sewing machines - Google Patents
Improvements in sewing machinesInfo
- Publication number
- GB910277A GB910277A GB21977/61A GB2197761A GB910277A GB 910277 A GB910277 A GB 910277A GB 21977/61 A GB21977/61 A GB 21977/61A GB 2197761 A GB2197761 A GB 2197761A GB 910277 A GB910277 A GB 910277A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thread
- looptaker
- bobbin
- cover
- air
- 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
- D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
- D05B73/005—Doors or covers for accessing inner parts of the machine; Security devices therefor
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2207/00—Use of special elements
- D05D2207/02—Pneumatic or hydraulic devices
- D05D2207/04—Suction or blowing devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2305/00—Operations on the work before or after sewing
- D05D2305/50—Removing cut-out material or waste
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S112/00—Sewing
- Y10S112/01—Suction thread cutting
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
910,277. Sewing-machines. SINGER MANUFACTURING CO. June 19, 1961 [June 28, 1960], No. 21977/61. Class 112. To remove severed sewing threads from the loop-taker a sewing-machine is provided with a cover, beneath its work-supporting bed, forming a chamber enclosing the looptaker, and is further provided with an air intake port in the cover above the axis of rotation of the looptaker, an air exit port in the cover situated below the level of the inlet port and poweroperated means for evacuating air from the said outlet port. Stands.-The sewing-machine 11 is mounted on a base 12 supported on a table top 24 sustained by leg structure 25 which also supports treadles 26, 28 which are respectively operable for starting the machine and opening and closing the work clamp 19. The driving motor 23 and the air blower unit 102 are supported beneath the table top. Single-thread lock stitch; rotary hook construction; bobbin winding; thread cutting.- The loop-taker is of the type in which thread from a needle thread supply may be wound on a bobbin within the looptaker for subsequent use as bobbin thread in the formation of single thread lock stitching. The hollow shaft 31 carries a cup-shaped looptaker body 32 formed with a beak 34 (see Fig. 4). A bobbin 38 (see Fig. 3) is journalled on a bobbin case 35 held stationary within the body 32 by a finger 36. When a rod 40, in the hollow shaft 31, is moved to the left in Fig. 3 by cam means, not shown, the winding member 41 carried by the rod clamps a needle thread loop on the hook beak 34, directs the loop to the bobbin 38 and rotates the bobbin to wind the thread thereon. The rod 40 is then retracted to the position shown. After completion of the stitching, mechanism associated with the looptaker draws any unused thread from the bobbin and further mechanism cuts the thread. To this end a slide bar 50 is moved lengthwise by cam means (not shown), a cam finger 52 extending from the bar engaging a circular spring 54 secured to the rear of the looptaker body, an auxiliary hook 55 on the spring being thus moved from a retracted ineffective position to a position where it can engage the bobbin thread. An arched finger 53 moving with the cam finger 52 moves to a position across the bobbin thread engaged by the hook 55 and, on retraction of the slide bar 50, will draw back the bobbin thread across the periphery of the looptaker flange 33 (Fig. 5, not shown). The slide bar 50 also carries a rack 60 (see Fig. 4) meshing with a gear segment 61 journalled in a bracket 37. A thread severing blade 62 and associated thread camming finger 63 are secured to and turn with the gear segment 61. A cam groove 65 in the segment 61 is engaged by a follower 66 carried on a pivoted arm 67 associated with a thread pick-up finger 68 which moves as the segment rotates to enter a notch 69 (see Fig. 3) in the bobbin case to engage the last needle thread loop which runs up the finger (Fig. 5, not shown) for severance by the blade. Frames, removing severed threads by air currents.-The work-supporting bed of the machine is provided with a bottom cover 79 formed of sheet material and fastened to the bed by screws passing through elongated slots 84 (see Fig. 7) which provide for movement of the cover towards the free end of the bed to allow clearance for depressing the cover to give access to the looptaker. The cover is cut away at 91 to provide an air inlet port. A tube 87 entering, and welded to, the bottom of the cover has an upper portion flattened to provide a partition 88 which is also welded to the cover. An aperture 90 disposed below the level of the looptaker at the side of the looptaker at which the latter turns downwardly, and on the opposite side of the cover to that in which port 91 is provided, forms an air exit port through which air is withdrawn by the blower 102 by way of the connecting tube 100. The disposition of the apertures at 90 and 91 provide a circulation of air in the direction of rotation of the looptaker to clear the severed bobbin thread ends from the looptaker into the tube 87, through the blower and into the mesh bag 108 detachably secured to the blower by spring clips 109.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39341A US3084647A (en) | 1960-06-28 | 1960-06-28 | Thread disposal system for sewing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB910277A true GB910277A (en) | 1962-11-14 |
Family
ID=21904955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21977/61A Expired GB910277A (en) | 1960-06-28 | 1961-06-19 | Improvements in sewing machines |
Country Status (2)
Country | Link |
---|---|
US (1) | US3084647A (en) |
GB (1) | GB910277A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3217680A (en) * | 1964-04-01 | 1965-11-16 | Harris Marshall Hosiery Mills | Cutting device |
US3382828A (en) * | 1965-10-23 | 1968-05-14 | Reta G. Denora | Sewing machine with vacuum-operated means |
US3638594A (en) * | 1970-03-10 | 1972-02-01 | Merrow Machine Co | Sewing machine cooling system |
US3783813A (en) * | 1972-08-14 | 1974-01-08 | Singer Co | Underbed thread trimming device for sewing machines |
US3793535A (en) * | 1972-12-06 | 1974-02-19 | Gen Electric | Circuit for protecting semiconductors against transient voltages |
US3894502A (en) * | 1973-04-12 | 1975-07-15 | Pfaff Ind Masch | Thread cutting arrangement on lock stitch sewing machines |
US3853079A (en) * | 1974-03-07 | 1974-12-10 | Clevepak Corp | Double suction unit |
US4249436A (en) * | 1979-10-10 | 1981-02-10 | Natmar, Inc. | Machine and method for removing a label sewn to a workpiece |
JPS6033079B2 (en) * | 1980-10-20 | 1985-07-31 | 三菱電機株式会社 | Industrial sewing machine dust collector |
JP4702609B2 (en) * | 2005-07-28 | 2011-06-15 | ブラザー工業株式会社 | Perforated sewing machine |
JP6326972B2 (en) * | 2014-05-27 | 2018-05-23 | ブラザー工業株式会社 | Container and sewing machine provided with the container |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2082738A (en) * | 1935-06-29 | 1937-06-01 | Union Special Machine Co | Sewing machine |
FR1210975A (en) * | 1957-09-19 | 1960-03-11 | Singer Mfg Co | Shuttle stitch sewing machine |
US3012530A (en) * | 1958-05-21 | 1961-12-12 | Singer Mfg Co | Lock stitch sewing machines |
-
1960
- 1960-06-28 US US39341A patent/US3084647A/en not_active Expired - Lifetime
-
1961
- 1961-06-19 GB GB21977/61A patent/GB910277A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3084647A (en) | 1963-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3173392A (en) | Thread trimming mechanism for lock stitch sewing machines | |
GB910277A (en) | Improvements in sewing machines | |
US3211117A (en) | Thread cutting device for double stitch sewing machines | |
US3012530A (en) | Lock stitch sewing machines | |
GB691894A (en) | Improvements in overedge sewing machines | |
GB1095530A (en) | ||
US3371633A (en) | Thread cutting device for sewing machines | |
US3115855A (en) | Bobbin thread replenishing means in sewing machine loop taker | |
US2298246A (en) | Machine for attaching articles | |
US3038429A (en) | Lock stitch sewing machine | |
US2529575A (en) | Sewing machines for making fabric tubes | |
KR100801339B1 (en) | A sewing machine for overlocking | |
US3182620A (en) | Surplus thread removing apparatus | |
GB928200A (en) | Lock stitch sewing machines | |
US3783813A (en) | Underbed thread trimming device for sewing machines | |
US3847102A (en) | Needle thread wiper and pull-back mechanism for sewing machines | |
US3512491A (en) | Thread cutting mechanism for lockstitch sewing machines | |
US1999145A (en) | Article-attaching machine | |
JP2819685B2 (en) | Sewing machine lower thread supply mechanism | |
US3895591A (en) | Thread cutting device | |
US1816626A (en) | Upside down sewing machine | |
US2499335A (en) | Thread-trimming and pull-off mechanism for sewing machines | |
US2918027A (en) | Sewing machine for tubular articles | |
CN221167026U (en) | Little bird nest thread trimming mechanism and sewing machine | |
JPS6161835B2 (en) |