GB165386A - Buttonhole sewing machine - Google Patents

Buttonhole sewing machine

Info

Publication number
GB165386A
GB165386A GB1250921A GB1250921A GB165386A GB 165386 A GB165386 A GB 165386A GB 1250921 A GB1250921 A GB 1250921A GB 1250921 A GB1250921 A GB 1250921A GB 165386 A GB165386 A GB 165386A
Authority
GB
United Kingdom
Prior art keywords
lever
cam
clamps
work
cutter
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
GB1250921A
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
Priority to NL10061D priority Critical patent/NL10061C/xx
Application filed by Singer Co filed Critical Singer Co
Priority to GB1250921A priority patent/GB165386A/en
Priority to DES56137D priority patent/DE368854C/en
Publication of GB165386A publication Critical patent/GB165386A/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

165,386. Fairweather, W., (Singer Manufacturing Co.). March 17, 1920. Button-hole sewing-machines. - 'Work-clamps, closing, spreading, and opening. The upper clamping members 47 are mounted upon pins 45 and are closed by cams 50 on coaxial spindles 46 connected so as to rotate together by levers 56, 57. The spindles 46 are actuated by a lever 181 when the latter is engaged by the lever arm 177 in starting the machine. The clamp-plates are pivoted on the plate 35 at 41, and are moved apart to spread the work after the clamps are closed by means of toggle-levers 195, 197, Fig. 2, operated by a lever 192 and a latch lever 188 connected to a depending lever arm 178. The lever arms 177, 178 are parts of a, three-armed lever, and the other arm 176 carries a spring-pressed pin 174, which is normally held in an inoperative position. When the starting-treadle is depressed, the pin 174 is released and enters a cam-groove in a continuously rotating belt pulley 171. After a single revolution of the pulley, during which the clamps are closed and spread, the pin 174 is ejected from the camgroove by a projection 173 and is re-engaged. The work-clamps are opened only after a cutting operation and by means of a cam 347 on the single-revolution cutter-shaft 170, which engages a lever 344, and by means of a push rod 339 and a lever arm 338 turns the cams 50 into inoperative positions. At the same time, a cam 213 on the cutter-shaft actuates a slide 212, and by means of a tappet-lever 209 bends the toggles 195, 197 to permit the work-clamps to move towards one another. The cutter levers are actuated from the single-revolution cutter shaft 170, which is brought into action by means of a cam-lever 326 when the latter is turned upon its pivot 327 by a cam projection 325 on a disc 324 mounted to rotate with the feed-cam. A slide 329 in the lever 326 forms the operative end of that lever and the cutting operation, and consequently the opening of the work-clamp, can be prevented by drawing the hand-lever 330 forwardly and so withdrawing the slide 329 out of reach of a lever 312. The invention is shown applied to a machine as described in Specification 164,858.
GB1250921A 1920-03-17 1920-03-17 Buttonhole sewing machine Expired GB165386A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL10061D NL10061C (en) 1920-03-17
GB1250921A GB165386A (en) 1920-03-17 1920-03-17 Buttonhole sewing machine
DES56137D DE368854C (en) 1920-03-17 1920-04-11 Buttonhole sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1250921A GB165386A (en) 1920-03-17 1920-03-17 Buttonhole sewing machine

Publications (1)

Publication Number Publication Date
GB165386A true GB165386A (en) 1921-06-17

Family

ID=10005900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250921A Expired GB165386A (en) 1920-03-17 1920-03-17 Buttonhole sewing machine

Country Status (2)

Country Link
GB (1) GB165386A (en)
NL (1) NL10061C (en)

Also Published As

Publication number Publication date
NL10061C (en)

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