GB240776A - Sewing machine needle controlling mechanism - Google Patents
Sewing machine needle controlling mechanismInfo
- Publication number
- GB240776A GB240776A GB1884925A GB1884925A GB240776A GB 240776 A GB240776 A GB 240776A GB 1884925 A GB1884925 A GB 1884925A GB 1884925 A GB1884925 A GB 1884925A GB 240776 A GB240776 A GB 240776A
- Authority
- GB
- United Kingdom
- Prior art keywords
- needle
- bar
- lever
- pin
- spring
- 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
- D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
- D05B3/02—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing with mechanisms for needle-bar movement
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
240,776. Fairweather, W., (Singer Manufacturing Co.). July 24, 1923. Sewing-machines; needle-driving mechanism, disconnecting and controlling; multiple-needle machines. - A machine having means for temporarily throwing out of action one of a number of needles is provided with a device for automatically recoupling the needles after a predetermined number of stitches. The mechanism is of the kind described in Specification 228,085, and comprises an auxiliary needle-bar 13 which is coupled to a primary needle-bar 9 by a pin 26 sliding in a lug 25 to enter an aperture in the bar 9. The pin extends from a block 29 sliding on a vertical pin 30 which is mounted on a slide-block 31. The slide-block is pivoted to a rocking arm 37 connected by a link 39 to a lever 40 stressed by a spring 42 in a direction to hold the pin 26 in coupling position. The lever 40 is connected by a link 45 to a manuallyactuated lever 46. Uncoupling of the two bars except at the top of a stroke is prevented by a stop member 51. The needle-bar 13 is retained in disconnected position by a catch 53 until recoupled by mechanism described below. A spring- stressed buffer-rod 56 limits the upstroke of the disconnected needle-bar. The lever 40 is retained in position to keep the needle-bar disconnected by a spring latch 61 which engages a stud 59 on the lever. The latch is moved to release the stud after a predetermined number of stitches by a tappet 68 mounted on a shaft 70 which rotates within a sleeve 71 journaled in a bushing. An indicator disc 75 is fixed to the sleeve 71 and beyond the disc is a tappet-adjusting head 79 which may be locked at different positions to the disc by moving it endwise against the action of a spring and rotating it to vary the position of a locking-pin. An arm 85 mounted on the bushing 72 and continuously oscillated by a pitman 88 and eccentric 91 and carries a pawl 93 adapted to engage the teeth 95 on a ratchet wheel 96 stressed by a coil spring 98 so that a stop 102 thereon engages an adjustable stop 103 on the framing. A stop pawl 108 prevents retrograde movement of the ratchet wheel during actuation by the pawl 93. When the needle-bars are coupled together, both pawls are held away from the wheel 96 by the engagement with a shoulder 110 on the pawl 108 of a stud 111 on the arm 40. In operation, the number of single-needle stitches to be made at a corner is determined by moving the graduated disc 75 to the desired index mark which causes the adjustment of the releasing tappet 68. When the disconnection of the needle is manually effected at the approach to a corner the pawls 93, 108 are allowed to engage the wheel 96 owing to the movement of the retaining stud 111 and the wheel 96 is then advanced step by step until the tappet 68 comes into operation to put the disconnecting mechanism out of action.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1884925A GB240776A (en) | 1925-07-24 | 1925-07-24 | Sewing machine needle controlling mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1884925A GB240776A (en) | 1925-07-24 | 1925-07-24 | Sewing machine needle controlling mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB240776A true GB240776A (en) | 1925-10-08 |
Family
ID=10119451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1884925A Expired GB240776A (en) | 1925-07-24 | 1925-07-24 | Sewing machine needle controlling mechanism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB240776A (en) |
-
1925
- 1925-07-24 GB GB1884925A patent/GB240776A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3815532A (en) | Needle bar release and raising mechanisms | |
US2411493A (en) | Buttonhole sewing machine | |
GB240776A (en) | Sewing machine needle controlling mechanism | |
US2158484A (en) | Sewing machine stop motion | |
US3308776A (en) | Sewing machines having bobbin thread replenishing means | |
US2340276A (en) | Buttonhole sewing machine | |
US3583343A (en) | Sewing machine with top feed means | |
US1754608A (en) | Sewing-machine needle-controlling mechanism | |
US3498243A (en) | Wiper mechanism in sewing machine | |
US2029233A (en) | Looper mechanism for sewing machines | |
US3141427A (en) | Loop taker adjusting mechanism for chainstitch sewing machines | |
US433971A (en) | Tension-releasing device for sewing-machines | |
US3273523A (en) | Buttonhole-stitching machine and thread-severing means therefor | |
US2712803A (en) | Overedge sewing machine | |
GB228085A (en) | Needle-bar controlling device for sewing machines | |
GB259855A (en) | Needle mechanism for sewing machines | |
US864144A (en) | Buttonhole-stitching machine. | |
US1188942A (en) | Buttonhole-stitching machine. | |
US1606330A (en) | Edward b | |
US3113539A (en) | Control mechanism for sewing machine thread tension device | |
US1874690A (en) | Sewing machine | |
GB211052A (en) | Improvements in or in connection with the manufacture of tennis and like balls | |
US1559539A (en) | Buttonhole-sewing machine | |
US1246794A (en) | Sewing-machine. | |
US2270552A (en) | Button sewing machine |