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US2709977A - Gathering device for blind-stitch machines - Google Patents

Gathering device for blind-stitch machines Download PDF

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Publication number
US2709977A
US2709977A US285252A US28525252A US2709977A US 2709977 A US2709977 A US 2709977A US 285252 A US285252 A US 285252A US 28525252 A US28525252 A US 28525252A US 2709977 A US2709977 A US 2709977A
Authority
US
United States
Prior art keywords
needle
driving shaft
gathering
lever means
lever
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
US285252A
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English (en)
Inventor
Dargols Bernard
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 US2709977A publication Critical patent/US2709977A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
    • D05B1/24—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making blind-stitch seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D05B29/06—Presser feet
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B85/00—Needles
    • D05B85/06—Curved needles

Definitions

  • the subject-matter of this invention is to provide improvements in or relating to said type of sewing machine so as to have this operation automatically achieved and said drawbacks eliminated.
  • the sewing machine of the blind-stitch type designed in accordance with the invention is substantially remarkable by the fact that it comprises a gathering device.
  • Figs. 1 and 2 show the gathering device mounted on a sewing machine of the blind-stitch type.
  • Fig. 3 is a plan view of the gathering plate.
  • the gathering device according to the invention is adjustable to sewing machines of the blind-stitch type wherein the needleholder 1 rocks about the driving shaft 2.
  • This shaft 2 carries a ratchet-wheel 3 that is provided with a notch 4 co-operating with a pawl 5a rigid with a lever 5 capable of rocking about a centre embodied in the axle 6 which maintains the support against the frame 7 of the machine.
  • a tension spring 8 has the tendency of bringing the upper part of the support 5 closer to the frame 7 so that the pawl 5a may remain in touch with the notch 4 of the ratchet-Wheel 3.
  • the spring is fastened with one of its ends to the frame 7 and with its other end to the support 5.
  • ratchet-wheel 3 may be replaced by a cam, an eccentric projection of which applying to the support 5 and its partial rotation causing the said support to rock about the mile 6.
  • the support 5 carries the plate-holder 9 consisting for example of a square piece. This plate-holder may have different positions with relation to said support,
  • the gathering comb 14 which thus may occupy different positions with respect to the square 9, an elongated eye 15 permitting the fastening bolt 16 to slide when unscrewed.
  • the working end 17 of said comb is cut out according to a toothed profile.
  • This comb enters between the trajectory of the needle 18 fixed to the needleholder 1 and the plate 19, called needle-plate, wellknown in machines of that type.
  • the operation of the gathering device is the following: when the needle 18 and the needle-holder 1 go up after a stitch, the ratchet-wheel 3 (or an equivalent cam) keyed on the driving shaft 2 repels the support 5 against the action of the spring 8. Said support carrying the comb 14 rocks about the axle 6 and the extremity 17 of this comb pushes the stuff to be gathered towards the needle.
  • the shaft 2 causes the needle-holder 1 and the needle 18 to go downwards; the ratchet-wheel 3 -(or the equivalent cam) follows this angular displacement, the pawl 5a rigid with the support 5 of the plate-holder 9 is returned to its initial position under the action of the spring 8.
  • the plate 17 is ready again to push the stuff during the following operation.
  • a frame a driving shaft mounted for oscillation about its axis on said frame; a needle carrier arm mounted at one end on said driving shaft for oscillation therewith, said arm having a needle mounted on the free end thereof extending substantially concentric with said driving shaft; actuating means mounted on said driving shaft for oscillation therewith; lever means mounted on said frame for turning about an axis parallel to said driving shaft, said lever means having one end arranged opposite said actuating means and having a gathering portion on its opposite end arranged opposite and facing said needle on said carrier arm; and means urging said one end of said lever means into contact with said actuating means, whereby turning of said driving shaft in one direction moves said carrier arm with said needle thereon in a direction toward said gathering portion of said lever means for stitching material placed in the path of said needle and moves said actuating means in a direction away from said one end of said lever means in contact therewith so that said gathering portion is moved by said urging means in a direction away from said needle, and turning of said driving shaft
  • a frame a driving shaft mounted for oscillation about its axis on said frame; a supporting arm carrying a needle mounted on said driving shaft for oscillation therewith; actuating means mounted on said driving shaft for oscillation therewith; lever means mounted on said frame for turning about an axis parallel to said driving shaft, said lever means having one end arranged opposite said actuating means and having a gathering portion on its opposite end arranged opposite and facing said needle on said sup porting arm; and means urging said one end of said lever means into contact withsaid actuating means, whereby turning of said driving shaft in one direction moves said supporting arm with said needle thereon in a direction toward said gathering portion of said lever means for stitching material placed in the path of said needle and moves saidactuating means in a direction away from said one end of said lever means in contact therewith so that said gathering portion is moved by said urging meansiina directionaway from said needle, and turning of. said driving shaftin the opposite direction moves said needle away from said gathering portion and causes said actu
  • a frame a driving shaft mounted for oscillation about its axis on saidframe; a supporting arm carrying a needle mounted on said driving shaft for oscillation therewith; actuating means mounted on said driving shaft for oscillation therewith; lever means mounted on said frame for turning about an axis parallel to said driving shaft, said lever means having one end arranged opposite said actuating means; a gathering member on the opposite end of said lever means arranged opposite and facing said needle on said supporting arm; and resilient means permanently urging said one end of said lever means into contact with said actuating means, whereby turning of said driving shaft in one direction moves said supporting arm with said needle thereonin a direction toward said gathering member of saidlever means for stitching material placed in the path of said needle and moves said actuating means in a direction away from said one end of said lever means in contact therewith so that said gathering member is moved by said resilient means in a direction away from said needle, and turning of said driving shaft in the opposite direction moves said needle away from said gathering member and causes said actu
  • a frame a driving shaft mounted for oscillation about its axis on said frame; a needle carrier arm mounted at one end on said driving shaft for oscillation therewith, said arm having a needle mounted on the free end thereof extending substantially concentric with said driving shaft; actuating means mounted on said driving shaft for oscillation therewith; lever means mounted on said frame for turning about an'axis parallel to said driving shaft, said lever means having one end arranged opposite said actuating means and having a gathering portion on its opposite end arranged opposite and facing said needle on said carrier arm; and resilient means connected to said frame and said lever means permanently urging said one'end of said lever means into contact with said actuating means, whereby turning of said driving shaft in one direction moves said carrier arm with said needle thereon in a direction toward said gathering portion of said lever means for stitching material placed in the path of said needle and moves said actuating means in a direction away from said one end of said lever means in contact therewith so that said gathering portion is moved by said resilient means in a direction away
  • a frame a driving shaft mounted for oscillation about itsaxis on said frame; a supporting arm carrying a needle mounted on said driving shaft for oscillation therewith; actuating means mounted on said driving shaft for oscillation therewith; lever means mounted on said frame for turning about an axis parallel to said driving shaft, said lever means having one end arranged opposite said actuating means, said lever means comprising a pivoted lever member and a supporting plate adjustably mounted on said lever member for adjustment longitudinally thereof and extending toward the opposite end of said lever means; a gathering member mounted on said supporting plate at the opposite end of said lever means arranged opposite and facing'said needle on said supporting arm; and resilient means permanently urging said one end of said lever means into contact with said actuating means, whereby turning of said driving shaft in one direction moves said supporting arm with said needle thereon in a direction toward said gathering member of said lever means for stitching material placed in the path ofsaid needle and moves said actuating means in a direction away from said one end of said lever means in
  • a frame a driving shaft mounted for oscillation about its axis on said frame; a supporting arm carrying a needle mounted on said driving shaft for oscillation therewith; actuating means mounted on said driving shaft for oscillation therewith; lever means mounted on said frame for turning about an axis parallel to said driving shaft, said lever means having one end arranged opposite said actuating means, said lever means comprising a pivoted lever member and a supporting plate adjustably mounted on said lever member for adjustment longitudinally thereof and extending toward the opposite end of said lever means; a gathering member mounted on said supporting plate at the opposite end of said lever means arranged opposite and facing said needle on said supporting arm; and resilient means connected to said frame and said lever means permanently urging said one end of said lever means into contact with said actuating means, whereby turning of said driving shaft in one direction moves said supporting arm with said needle thereon in a direction toward said gathering member of said lever means for stitching material placed in the path of said needle and moves said actuating means in a direction away from said one

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US285252A 1952-04-16 1952-04-30 Gathering device for blind-stitch machines Expired - Lifetime US2709977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR939852X 1952-04-16

Publications (1)

Publication Number Publication Date
US2709977A true US2709977A (en) 1955-06-07

Family

ID=9458689

Family Applications (1)

Application Number Title Priority Date Filing Date
US285252A Expired - Lifetime US2709977A (en) 1952-04-16 1952-04-30 Gathering device for blind-stitch machines

Country Status (5)

Country Link
US (1) US2709977A (fr)
CH (1) CH299669A (fr)
DE (1) DE939852C (fr)
FR (1) FR1057169A (fr)
GB (1) GB736592A (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1035939A (en) * 1907-05-27 1912-08-20 Arbetter Felling Machine Company Sewing-machine.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1035939A (en) * 1907-05-27 1912-08-20 Arbetter Felling Machine Company Sewing-machine.

Also Published As

Publication number Publication date
CH299669A (fr) 1954-06-30
DE939852C (de) 1956-03-01
FR1057169A (fr) 1954-03-05
GB736592A (en) 1955-09-14

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