GB224845A - Buttonhole sewing machine - Google Patents

Buttonhole sewing machine

Info

Publication number
GB224845A
GB224845A GB2227024A GB2227024A GB224845A GB 224845 A GB224845 A GB 224845A GB 2227024 A GB2227024 A GB 2227024A GB 2227024 A GB2227024 A GB 2227024A GB 224845 A GB224845 A GB 224845A
Authority
GB
United Kingdom
Prior art keywords
tension
pin
fly
needle
underthread
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
Application number
GB2227024A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Singer Co
Original Assignee
Singer Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Singer Co filed Critical Singer Co
Priority to GB2227024A priority Critical patent/GB224845A/en
Priority to DES65858D priority patent/DE435771C/en
Publication of GB224845A publication Critical patent/GB224845A/en
Expired legal-status Critical Current

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
    • D05B3/06—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 for sewing buttonholes
    • 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

224,845. Fairweather, W., (Singer Manufacturing Co.). Feb. 27, 1924. Button-hole sewing- machines; threads, controlling, otherwise than in stitch-forming. - A machine for making fly-barred button-holes is provided with means for automatically increasing the tension of the underthread during the sewing of the over-lying stitches of the fly-bar so that the purl is pulled over to the edge of the fly-bar to conceal the needle punctures. The stitch-forming mechanism is of the type described in Specifications 15049/15 and 126,119, and comprises a straight needle co-operating with a curved needle and looper. The means for varying the underthread tension comprises a fork 111 adapted to press on one of the discs of the tension device 115 and mounted on a rock-shaft. carrying an arm 116 to which is attached a spring-stressed plate 117 forked at its lower end to embrace the neck of a pin 121. The pin is slidably mounted and bears on a cam 122 on the rapid-feed shaft 39. This cam is mainly circular, but has a recessed part 124 which allows the pin to move inwards so that the pressure on the disc 115 is increased. The work-clamp, work-holder, rapidfeed device and upper thread tension described are of known construction. Specification 179,278 also is referred to.
GB2227024A 1924-02-27 1924-02-27 Buttonhole sewing machine Expired GB224845A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2227024A GB224845A (en) 1924-02-27 1924-02-27 Buttonhole sewing machine
DES65858D DE435771C (en) 1924-02-27 1924-04-29 Buttonhole sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2227024A GB224845A (en) 1924-02-27 1924-02-27 Buttonhole sewing machine

Publications (1)

Publication Number Publication Date
GB224845A true GB224845A (en) 1924-11-20

Family

ID=10176648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2227024A Expired GB224845A (en) 1924-02-27 1924-02-27 Buttonhole sewing machine

Country Status (1)

Country Link
GB (1) GB224845A (en)

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