US2028016A - Sewing machine - Google Patents

Sewing machine Download PDF

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Publication number
US2028016A
US2028016A US755103A US75510334A US2028016A US 2028016 A US2028016 A US 2028016A US 755103 A US755103 A US 755103A US 75510334 A US75510334 A US 75510334A US 2028016 A US2028016 A US 2028016A
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US
United States
Prior art keywords
looper
needle
sewing
sewing machine
point
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 - Lifetime
Application number
US755103A
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English (en)
Inventor
Schweiger Curt Wilhelm
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2028016A publication Critical patent/US2028016A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B3/00—Collars
    • A41B3/04—Collars fastening to shirts
    • 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
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers

Definitions

  • This invention relates to a combination trimmihg and zigzag sewing machine having a looper moved in a horizontal plane and a needle bar oscillatable parallel thereto, in which the looper shaft and the axis of the Swinging frame of the needle bar are'coaxial to insure a distance between the needle and the point of the looper, which will not vary at all working widths.
  • the invention consists in employing a looper coaxial with the axis of the needle bar moving transversely to the direction of sewing and such a looper, in which the needle pierces within the path of the looper point and this looper is arranged in front of the needle.
  • a domestic and zigzag sewing machine is provided which, during zigzag sewing, does not only insure a never varying distance of the needle from the looper point, but, in straight sewing, will always produce an accurate straight seam under the most favorable conditions for looping.
  • Fig. 1 is a longitudinal section of the machine
  • Fig. 2 a side view thereof, partly in section;
  • FIG. 3 a detail view on an enlarged scale
  • Fig. 4 a top view of the driving mechanisms for the looper
  • Fig. 5 a view of another form or looper drive
  • Fig. 6 a longitudinal section of the standard of the sewing machine top with a looper drive as shown in Fig. 5.
  • the horizontally moving looper a is arranged in the extension of the axis of the swinging frame 0 of the needle bar in front of the needle bar b and so constructed that it will catch the thread loop behind the needle.
  • This construction afiords not only the advantage that at each piercing position during zigzag sewing the needle has the same distance from the looper axis, but makes it possible also conveniently to remove upwardly the lower thread bobbin from the bobbin casin in front of the needle bar or to insert it therein from above.
  • another essential advantage is that the bobbin thread is threaded from the front towards the rear, 1. e. in sewing direction, so that during sewing of a straight seam an accurate pearl stitch will result.
  • the oscillating motion of the looper a at varying speeds is effected from the main shaft (1 by means of a simple bevel gear e, f, a vertically disposed shaft 9', an oscillating crank gear h of known type, and a connecting rod 1 articulated thereto.
  • the shaft g carries for this purpose at its lower end a crank disc is with a crank pin m and a roll n rotatable on. the latter and moving during rotation of the crank disc is in a slide of the oscillating crank gear 71,.
  • the slide 0 of the member h is constructed so that the motion of the looper point from the-initial position A, Fig. 4, through the angle 5 to the first constant piercing position I is slow, but accelerated from the latter position through the angle a, which is variable to permit different working widths, to the second piercing position II, and accelerated the more the larger the angle a is, i. e. the greater the distance from the second piercing position II to the first piercing position I.
  • a combination trimming and zigzag sewing machine with a ring looper oscillating in the horizontal plane, a needle bar moving transversely to the sewing direction in zigzag work, a swinging frame for said needle bar, and a looper disposed in front of the needle and being coaxial with said swinging frame, the point of said looper engaging the needle thread loop behind the needle.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US755103A 1933-09-20 1934-11-28 Sewing machine Expired - Lifetime US2028016A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH102236D DE631284C (de) 1933-09-20 1933-09-20 Kombinierte Steppstich- und Zickzacknaehmaschine

Publications (1)

Publication Number Publication Date
US2028016A true US2028016A (en) 1936-01-14

Family

ID=25993697

Family Applications (1)

Application Number Title Priority Date Filing Date
US755103A Expired - Lifetime US2028016A (en) 1933-09-20 1934-11-28 Sewing machine

Country Status (4)

Country Link
US (1) US2028016A (fr)
DE (1) DE631284C (fr)
FR (1) FR780961A (fr)
GB (1) GB427531A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966130A (en) * 1954-11-29 1960-12-27 Singer Mfg Co Sewing machine and loop-taker mechanisms therefor
US3246619A (en) * 1962-12-20 1966-04-19 Riccar Sewing Machine Co Ltd Zigzag sewing machine
US3633527A (en) * 1969-06-26 1972-01-11 Crystal Sewing Mach Toy sewing machine capable of switching between zigzag stitch forming and straight stitch forming operations

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246377B (de) * 1954-11-29 1967-08-03 Singer Co Naehmaschine mit umlaufendem Horizontalgreifer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966130A (en) * 1954-11-29 1960-12-27 Singer Mfg Co Sewing machine and loop-taker mechanisms therefor
US2989016A (en) * 1954-11-29 1961-06-20 Singer Mfg Co Sewing machines
US3246619A (en) * 1962-12-20 1966-04-19 Riccar Sewing Machine Co Ltd Zigzag sewing machine
US3633527A (en) * 1969-06-26 1972-01-11 Crystal Sewing Mach Toy sewing machine capable of switching between zigzag stitch forming and straight stitch forming operations

Also Published As

Publication number Publication date
FR780961A (fr) 1935-05-07
GB427531A (en) 1935-04-25
DE631284C (de) 1936-06-17

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