US2431888A - Method of making bags - Google Patents

Method of making bags Download PDF

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Publication number
US2431888A
US2431888A US723575A US72357547A US2431888A US 2431888 A US2431888 A US 2431888A US 723575 A US723575 A US 723575A US 72357547 A US72357547 A US 72357547A US 2431888 A US2431888 A US 2431888A
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Prior art keywords
fabric
bags
stitching
edges
bag
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Expired - Lifetime
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US723575A
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Milton E Pick
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Individual
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B13/00—Machines for sewing sacks

Definitions

  • This invention relates to fabric bags and has special reference to a method of producing bags from a length of fabric.
  • One important object of the invention is to provide any improved method of manufacturing bags from a roll or bolt of fabric wherein the fabric is doubled and sewn and cut to produce a bag open at one end for the reception of material to be bagged.
  • a second important object of this invention is to provide a novel series of steps in the formation of bags from a roll or bolt of fabric whereby the open end or mouth of the bag will have its edges formed by the selvage edges of the fabric so that these edges will not fray nor require any special operation for finishing.
  • a third important object of the invention is to provide a method of forming bags from a doubled strip of fabric including a stitching step of such character that upon severing the bag from the fabric strip it will be ready for filling without any further stitching operation.
  • the invention consists in general of a method embodying certain steps in the manufacture of fabric bags and the sequence in which these steps occur as hereinafter fully described, disclosed by the accompanying drawings and particularly claimed.
  • Figure 2 is a similar view in plan.
  • Figure 3 is a view showing a completed bag as severed from the remainder of the fabric.
  • a roll or bolt of suitable fabric is provided and is supported in a suitable manner to permit the fabric to be drawn off and then doubled to bring its selvage edges together.
  • the doubled fabric is then stitched transversely with a special spacing of stitching. Finally the bags are severed one by one in stitched condition.
  • the fabric is drawn off and doubled by suitable means such as a pair of rollers 13 arranged for intermittent operation so that the fabric is moved by the rollers intermittently to feed beneath a stitching mechanism I4 in a step-by-step manner, the length of the steps corresponding to the width of the bags to be produced.
  • a stitching mechanism I4 By means of the stitching mechanism a double row of stitching is produced at each step in the movement of the fabric. These rows run parallel entirely across the doubled fabric and the rows of each pair are closely spaced.
  • the fabric is then severed between the rows of each pair. This severing of the fabric is accomplished each time the fabric is stitched.
  • That method of producing fabric bags which consists in folding longitudinally a long strip of fabric having parallel selvage side edges in such manner as to bring its side edges together, stitching across the folded fabric to produce pairs of stitch lines closely spaced with uniform intervals between the pairs, and severing the fabric throughout its folded width between the stitch lines of each pair after the stitching across the folded fabric has been completed.

Description

Dec. 2, 1947.
M. E. PICK METHOD OF MAKING BAGS Filed Jan. 22, 1947 Patented Dec. 2, 1947 UNITED STATES PATENT OFFICE METHOD OF MAKING BAGS Milton E. Pick, New Orleans, La. Application January 22, 1947, Serial No. 723,575 1 Claim. (Cl. 112-10) This invention relates to fabric bags and has special reference to a method of producing bags from a length of fabric.
One important object of the invention is to provide any improved method of manufacturing bags from a roll or bolt of fabric wherein the fabric is doubled and sewn and cut to produce a bag open at one end for the reception of material to be bagged.
I am aware that bags have heretofore been produced from a roll of fabric by a step-by-step series of operations but the bags thus produced have had an open end at which the material is either left with raw edges or has required that the edges at the open end be subject to an additional step in the operation to prevent fraying at the mouth of the bag.
A second important object of this invention is to provide a novel series of steps in the formation of bags from a roll or bolt of fabric whereby the open end or mouth of the bag will have its edges formed by the selvage edges of the fabric so that these edges will not fray nor require any special operation for finishing.
A third important object of the invention is to provide a method of forming bags from a doubled strip of fabric including a stitching step of such character that upon severing the bag from the fabric strip it will be ready for filling without any further stitching operation. I
With the above and other objects in view, as will hereinafter be apparent, the invention consists in general of a method embodying certain steps in the manufacture of fabric bags and the sequence in which these steps occur as hereinafter fully described, disclosed by the accompanying drawings and particularly claimed.
In the accompanying drawings like characters of reference indicate like parts in the several views, and- Figure 1 is a diagrammatic view in elevation disclosing the several steps of the method forming this invention.
Figure 2 is a similar view in plan.
Figure 3 is a view showing a completed bag as severed from the remainder of the fabric.
In carrying out the method of this invention a roll or bolt of suitable fabric is provided and is supported in a suitable manner to permit the fabric to be drawn off and then doubled to bring its selvage edges together. The doubled fabric is then stitched transversely with a special spacing of stitching. Finally the bags are severed one by one in stitched condition.
In the drawings no attempt has been made to show mechanical details of a machine for carrying out the present invention as it is desired to confine the present disclosure solely to the method of manufacture.
As here shown there is disclosed a spool l0 carrying a roll of fabric ll having the usual selvage edges [2. The fabric is drawn off and doubled by suitable means such as a pair of rollers 13 arranged for intermittent operation so that the fabric is moved by the rollers intermittently to feed beneath a stitching mechanism I4 in a step-by-step manner, the length of the steps corresponding to the width of the bags to be produced. By means of the stitching mechanism a double row of stitching is produced at each step in the movement of the fabric. These rows run parallel entirely across the doubled fabric and the rows of each pair are closely spaced. The fabric is then severed between the rows of each pair. This severing of the fabric is accomplished each time the fabric is stitched. The result of these steps is to produce a bag having the selvage edges of the fabric for its mouth portion and stitched along each side thus preventing injurious fraying of the severed edges. From the foregoing it will be seen that upon the severing step being made a complete bag, requiring no additional stitching, has been manufactured.
What is claimed is:
That method of producing fabric bags which consists in folding longitudinally a long strip of fabric having parallel selvage side edges in such manner as to bring its side edges together, stitching across the folded fabric to produce pairs of stitch lines closely spaced with uniform intervals between the pairs, and severing the fabric throughout its folded width between the stitch lines of each pair after the stitching across the folded fabric has been completed.
MILTON E. PICK.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 769,453 Ames Sept. 6, 1904 1,248,236 Yates Nov. 27, 1917 FOREIGN PATENTS Number Country Date 436,013 Great Britain Oct. 3, 1935
US723575A 1947-01-22 1947-01-22 Method of making bags Expired - Lifetime US2431888A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607436A (en) * 1948-07-31 1952-08-19 Charles A Martin Dust separator
US2649923A (en) * 1951-01-04 1953-08-25 Davison Chemical Corp Humidifier package with stitchedin suspension means and method for making same
US2939501A (en) * 1956-06-05 1960-06-07 Samuel M Corman Textile bags
US3079292A (en) * 1960-01-13 1963-02-26 May L Chester Method of making sterile bedside drainage bag
US3082717A (en) * 1961-03-01 1963-03-26 Manuel F Forte Method of making paper bag
US3085524A (en) * 1959-10-09 1963-04-16 Standard Bag Company Sewing machine for draw-string bag making
US3097733A (en) * 1959-02-12 1963-07-16 Johnson & Johnson Automatic machine
US3136277A (en) * 1961-03-01 1964-06-09 Manuel F Forte Method of making paper bags
US3670679A (en) * 1970-09-04 1972-06-20 Richard D Campbell Cuff making method
US4284507A (en) * 1978-05-10 1981-08-18 Beane Frank Thomas Knit pile filter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US769453A (en) * 1904-03-23 1904-09-06 John F Ames Machine for sewing bags.
US1248236A (en) * 1916-05-09 1917-11-27 Crystal Springs Bleachery Co Sewing-machine.
GB436013A (en) * 1934-04-20 1935-10-03 Ashton Brothers & Company Ltd Improvements in or relating to pillow, bolster and like slips or ticks and bags

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US769453A (en) * 1904-03-23 1904-09-06 John F Ames Machine for sewing bags.
US1248236A (en) * 1916-05-09 1917-11-27 Crystal Springs Bleachery Co Sewing-machine.
GB436013A (en) * 1934-04-20 1935-10-03 Ashton Brothers & Company Ltd Improvements in or relating to pillow, bolster and like slips or ticks and bags

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607436A (en) * 1948-07-31 1952-08-19 Charles A Martin Dust separator
US2649923A (en) * 1951-01-04 1953-08-25 Davison Chemical Corp Humidifier package with stitchedin suspension means and method for making same
US2939501A (en) * 1956-06-05 1960-06-07 Samuel M Corman Textile bags
US3097733A (en) * 1959-02-12 1963-07-16 Johnson & Johnson Automatic machine
US3085524A (en) * 1959-10-09 1963-04-16 Standard Bag Company Sewing machine for draw-string bag making
US3079292A (en) * 1960-01-13 1963-02-26 May L Chester Method of making sterile bedside drainage bag
US3082717A (en) * 1961-03-01 1963-03-26 Manuel F Forte Method of making paper bag
US3136277A (en) * 1961-03-01 1964-06-09 Manuel F Forte Method of making paper bags
US3670679A (en) * 1970-09-04 1972-06-20 Richard D Campbell Cuff making method
US4284507A (en) * 1978-05-10 1981-08-18 Beane Frank Thomas Knit pile filter

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