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US2065413A - Bag sewing apparatus - Google Patents

Bag sewing apparatus Download PDF

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Publication number
US2065413A
US2065413A US666002A US66600233A US2065413A US 2065413 A US2065413 A US 2065413A US 666002 A US666002 A US 666002A US 66600233 A US66600233 A US 66600233A US 2065413 A US2065413 A US 2065413A
Authority
US
United States
Prior art keywords
bag
needle
sewing
sewing apparatus
latch
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
US666002A
Other languages
English (en)
Inventor
Zimmermann Ernst
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.)
Gummi Tank A G
Gummi-Tank A-G
Original Assignee
Gummi Tank A G
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 Gummi Tank A G filed Critical Gummi Tank A G
Priority to US696072A priority Critical patent/US2051117A/en
Application granted granted Critical
Publication of US2065413A publication Critical patent/US2065413A/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
    • D05B13/00—Machines for sewing sacks

Definitions

  • My invention relates to improvements in bag sewing apparatus, and more particularly in apparatus. by means of which the opening of the bag is closed by chain stitches, and in which prior to sewing the upper rim of the bag is held by means of a clamping device provided with guiding means for the sewing apparatus.
  • the object of the improvements is to provide an apparatus of this type in which the sewing apparatus is'securely supported, so that the bag may be readily and rapidly sewn.
  • my invention consists in providing the guiding means for the sewing apparatus with a frame which is adapted to be supported on the filled bag, and whichis equipped with stretching means for the opening of the bag.
  • Fig. 1 is an elevation showing the top part of the bag to be sewed and the sewing appara tus mounted thereon,
  • Fig. 2 is a'sectional elevation taken on the line 2-2' of Fig. 1,
  • Figs. 3 to 5 are detail views partly in section showing the needle in difierent positions
  • Fig. 6 is a detail sectional elevation taken on the line 6-6 of Fig. 5.
  • My improved bag sewing apparatus comprises av frame adapted to be supported on the bag and the sewing apparatus movable thereon.
  • the frame comprises two rails 3 which are angular in cross-section and two cross-members 4 connecting the rails at their ends, the said crossmembers. being curved upwardly from the rails. and being connected at their top ends by a rod 5.
  • a stretching device is mounted, by means of which the rim 2 of the bag I is stretched prior to sewing.
  • the stretching device comprises a hook 6' fixed to one end of the rod 5, and a hook I! which is shiftable' at the opposite end of the rod 5, and which is acted upon by a spring 9.
  • the hook II is secured to-a block II] which is formed with a bore, and which is slidable on the rod 5.
  • the block In is connected by a spring 9 with a block 1 adapted to be clamped to the rod 5 at any part of the length thereof by means of a screw 8.
  • a screw 8 Prior to sewing the rim 2 of the bag is attached to the hook 6, and after stretching the same it is attached with its opposite end to the hook H,
  • the guide rails 3 of the frame are supported on the filled bag I, and they provide reliable guiding means for the sewing apparatus.
  • the said sewing apparatus is supported on the rails 3 by 5 means of downwardly directed arms I3 carrying guide rollers It.
  • the casing l2 of an electrometor is mounted which is adapted to drive the sewing apparatus through the intermediary of 10 a reducing gearing mounted in the bottom part of the casing I2.
  • the motor casing At its top end the motor casing is provided with a handle I5 and a terminal I6 connected with a lead l1.
  • a second handle I8 At the side of the motor cas- 15 ing a second handle I8 is provided by means of which the sewing apparatus may be shifted by hand on the rails 3.
  • the driving disk 2!] carries a downwardly directed eccentric bolt 2
  • the needle bar 24 is guided in bearing blocks 21 and 28 secured to or made integral with two arms 25, 26 connected with the motor casing.
  • a hookshaped needle 30 is secured which is provided with a rockable tongue 36 (Fig. 3).
  • the needle bar 24 is tubular in form, and in its bore a thread brake is mounted.
  • the said brake comprises a cylindrical slide pin 44 mounted within the tubular end of the needle bar 24 and carrying laterally projecting pins guided in longitudinal slots of the said tubular end.
  • the slide pin 44 is held between two coiled springs 46 and 41 bearing with their outer ends on the end walls of the bore of the tubular part of the needle bar 24. Through a transverse bore of the pin 44 the sewing thread is passed.
  • the springs 46 and 4'! acting on the slide pin 44 the tension of the thread is regulated While the needle bar 24 reciprocates. 45
  • the bearing 28 for the needle bar 24 carries two stitch plates 37 and 38 spaced from each other to provide room for the rod 5 of the frame and the rim 2 of the bag.
  • a controlling slide latch opener 34 is shiftable, which is guided by means of a rod 33 in a bore of the bearing block 28, and which is adapted to be operated through the intermediary of a slide 32 carrying guide rollers from a controlling cam 3
  • the controlling slide 34 is formed with a cut-out portion 35 which is adapted to rock the tongue 36 of the needle 33 rearwardly and on the stem of the needle at the beginning of the stitching movement.
  • the motor casing is provided with two arms 40 on which a thread bobbin 39 and a tensioning and releasing device 42 for the said bobbin are mounted.
  • the thread is guided to the threadbrake and the needle through eyes 43 and a thread-guiding opening made in the stitch plate 38.
  • a clamping device shown in detail in Fig. 6 and comprising a shoulder 50 and a clamping plate formed with a guide pin 52 and acted upon by a spring 53.
  • the thread taken from the bobbin 39 is passed through the thread eye 43, the bore of the slide pin 44 and the opening made in the stitch plate 38, whereupon its end is clamped between the shoulder 50 and the clamping plate 5
  • the chain stitches for sewing the bag are made as follows:
  • the needle 30 is passed through the rim 2 of the bag after its tongue 36 has been rocked rearwardly by the upward movement of the slide 34 in the manner shown in Fig. 3.
  • the needle catches the thread located before the stitch hole, as is shown in Fig. 4, and it pulls the same through the rim 2 of the bag and into the position shown in Fig. 5 while forming the thread into a loop, the tongue 36 being placed by the fabric of the bag on the eye of the needle so as to prevent the loop from leaving the needle 30.
  • the sewing apparatus is shifted in the direction of the seam being made, and thereby the loop which has been pulled through the fabric is placed in the same direction and on the rim of the bag.
  • a bag sewing apparatus comprising a frame having a pair of rails adapted to be supported on the top of the filled bag and means located in position, when the frame is placed on the filled bag, for holding the open end of the bag tensioned to bring the sides of the rim together, and a bag sewing apparatus movable on said frame, said sewing apparatus comprising a hook-shaped needle carrying a rockable tongue, a controlling member adapted to be moved into and out of position for acting on said tongue, a motor, a cam disk connected with said motor and adapted to operate said controlling member and crank mechanism connected with said cam for imparting reciprocating movement to said needle.
  • a bag sewing apparatus comprising a frame having a pair of rails adapted to be supported on the top of the filled bag and means located in position, when the frame is placed on the filled bag, for holding the open end of the bag under tension with the sides of the rim parallel and close together, and a bag sewing apparatus movable on said frame, said sewing apparatus comprising a hook-shaped needle, a reciprocating rod adapted to operate said needle, a motor for operating said rod, means for supplying thread to the needle, and a resiliently-acting take-up on said rod.
  • a frame comprising a pair of rails rigidly secured together in spaced-apart relation so that they can be supported on the shoulders of a filled bag with the neck of the bag extending up between them, and means at the ends of the frame for engaging the neck of the sack and tensioning it to bring the opposed sides into contiguous parallel relation whereby they can be conveniently secured together.
  • a frame comprising a pair of rails rigidly secured together in spaced-apart relation so that they can be supported on the shoulders of a filled bag with the neck of the bag extending up between them, means at the ends of the frame for engaging the neck of the bag and tensioning it to bring the opposed sides into contiguous parallel relation whereby they can be conveniently secured together, and a sewing machine supported on said rails and movable lengthwise thereof.
  • a bag-sewing apparatus comprising a sewing machine, means for supporting the sewing machine in operative relation to'the closed neck of a filled bag, a horizontal pivoted latch needle, means for operating the needle to sew the neck of the bag, means for opening the latch of the needle, and means for operating the latch opening means in timed relation with the needle movements so as to open the latch of the needle while the same is withdrawn from the material of the bag.
  • a bag-sewing apparatus comprising a sewing machine, means for supporting the sewing machine in operative relation to the closed neck of a filled bag, a horizontal latch needle, means for operating the needle to sew the neck of the bag, means for opening the latch of the needle, said means comprising a member having an opening to receive the end of the latch, and means for moving said member into operating position at the beginning of a forward stroke of the needle.
  • a bag sewing apparatus comprising a sewing machine, a track supporting the machine for movement parallel to the rim of the bag to be closed by the action of the machine, a horizontal needle having a pivoted latch, means for operating the needle to sew up the mouth of the bag, means for opening the pivoted latch of the needle, said latch opening means being movable with reference to the needle, and means for moving said latch opening means in timed relation with the movements of the needle.
  • a bag sewing apparatus comprising a sewing machine, a track supporting the machine for movement parallel to the rim of the bag to be closed, a horizontal needle having a pivoted latch, means for operating the needle to sew up the mouth of the bag, means for opening the pivoted latch of the needle, said latch opening means comprising a movable member with an orifice to receive the end of the latch, and means to move said member into position to engage the latch before the latch reaches the cloth of the bag and then moving said member out of the way of the latch.
  • a bag sewing apparatus means for supporting material to be sewed, a sewing needle having a pivoted latch, means for operating the needle, latch opening means, said latchopening means comprising a movable element, and means for moving it into and out of the path of the latch in timed relation to the needle movements.
  • a bag sewing apparatus comprising rails adapted to be supported by the shoulders of a filled bag, cross members connecting said rails, means for stretching the mouth of the bag during the sewing operation, a mechanism movable on said rails including sewing means, a motor for driving the sewing means, and connections from the motor to the sewing means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US666002A 1932-04-20 1933-04-13 Bag sewing apparatus Expired - Lifetime US2065413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US696072A US2051117A (en) 1933-04-13 1933-10-31 Bag sewing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE400211X 1932-04-20

Publications (1)

Publication Number Publication Date
US2065413A true US2065413A (en) 1936-12-22

Family

ID=6398740

Family Applications (1)

Application Number Title Priority Date Filing Date
US666002A Expired - Lifetime US2065413A (en) 1932-04-20 1933-04-13 Bag sewing apparatus

Country Status (4)

Country Link
US (1) US2065413A (fr)
BE (1) BE395326A (fr)
FR (1) FR753021A (fr)
GB (1) GB400211A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484495A (en) * 1945-08-29 1949-10-11 Fischbein Dave Electric sewing machine
US2960946A (en) * 1956-07-31 1960-11-22 Union Special Maschinenfab Portable sewing machines
DE1485194B1 (de) * 1964-01-31 1971-02-04 Alphonse De Koninck UEberwendlichnaehmaschine
US5020458A (en) * 1989-01-05 1991-06-04 Maximilian Janser Sewing machine, particularly for edging or hemming materials
US6125742A (en) * 2000-02-10 2000-10-03 Atlas Pacific Engineering Company Seed celler having dual drives for turning fin and seed cell knife

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484495A (en) * 1945-08-29 1949-10-11 Fischbein Dave Electric sewing machine
US2960946A (en) * 1956-07-31 1960-11-22 Union Special Maschinenfab Portable sewing machines
DE1485194B1 (de) * 1964-01-31 1971-02-04 Alphonse De Koninck UEberwendlichnaehmaschine
US5020458A (en) * 1989-01-05 1991-06-04 Maximilian Janser Sewing machine, particularly for edging or hemming materials
US6125742A (en) * 2000-02-10 2000-10-03 Atlas Pacific Engineering Company Seed celler having dual drives for turning fin and seed cell knife

Also Published As

Publication number Publication date
GB400211A (en) 1933-10-19
BE395326A (fr)
FR753021A (fr) 1933-10-05

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