US1132963A - Sewing-machine. - Google Patents

Description

L. ONDERDONK.

SEWING MACHINE.

APPLICATION FILED DEO. 6, 1907.

Patented Mar. 23, 1915.

5 SHEETS'fiHBET 1.

L. ONDERDONK.

SEWING MACHINE.

APPLICATION FILED DEG. 6. 1907. 1,1 32,963. Patented Mar. 23, 1915.

6 BHBETS-BHEET 2.

W1 YYVESSES INVENTOR y MW . HIM/113w L. ONDERDONK.

SEWING MACHINE.

APPLIUATION FILED DEC. 6, 1907. 7 1,1 32,963, Patented Mar. 23, 1915.

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M 11 W W w L. ONDERDONK.

SEWING MACHINE.

APPLICATION I'ILED DEC. 6, 1907.

1,1 32,963. Patented Mar. 23, 1915.

6 SHEETS-SHEET 5.

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LANSING ONDERDONK, OF NEW YORK, N. Y., ASSIGNOR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEWING-MACHINE.

Specification of Letters Patent. Patented ltIar, 23, 1915,

Application filed December 6, 1907. Serial No. 465,854.

5 State of New York, have invented certain new and useful Improvements in Sewing- Machines, of which the following is a description, reference being had to the accompanying drawing and to the letters and figures of reference marked thereon.

My invention relates to new and useful improvements in sewing machines, and more especially to sewing machines which are adapted for making a blind stitch.

An object of my invention is to provide a blind stitch sewing machine, wherein the parts shall be compactly arranged and positive in their movements.

A further object of my invention is to provide a blind stitch overseaming mechanism, wherein a thread carrying looper operates with the needle at one side of the line of the seam, and a spreader operates to carry the looper thread loop across the line of feed and position the same for the entrance of the needle.

A further object of my invention resides in a common looper and spreader operating mechanism, irrespective of whether said mechanism is embodied in a blind stitch machine, or other form of overseaming machines.

Still further ob ects of my inventlon Will be in part obvious, and will be in part here- P inafter, more fully pointed out.

In the drawings which show by way of illustration one embodiment of my invention only :Figure 1 is a side elevation of a machineembodying my invention, parts being :0 in section. Fig. 2 is a rear elevation with the parts shown in section. Fig. 3 is an end view with the front plate removed. Fig. 4 is a sectional view taken on the line 44 of Fig. 1, certain parts being omitted for the I Fig. 5 is a detail view showing the position of the needle, looper and spreader when the looper is at the end of its stroke. Fig. 6 is a similar view with the looper at the rear end of its stroke. Fig.

9 7 is a detail partly in section, showing the needle, looper, spreader, work supporting ridge and presser feet, with the spreader engaging and deflecting the needle. Fig. 8 is a detail view showing in end elevation a'modi- 5 fied form of needle operating mechanism.

Fig. 9 is a view in side elevation of the same.-

A standard 1, carries a work supporting arm 2, which as shown in the present embodiment of my invention, is pivotally supported at 3, so that the said work support 2 s capable of a limited vertical movement at its outer end, as shown in dotted lines-in Flg. 2. Said work supporting arm 2, has a depending flange or lug 4, which is pivoted to a link 5. A link 6 is in turn pivoted to the link 5 at one end and at its other end, is pivotally connected to a pin or short shaft 7, whlch is mounted in a bearing 8 carried by the standard 1. The outer'end of the pin or shaft 7, has rigidly secured thereto, an arm 9, by means of which the shaft 7 may be oscillated. As the shaft 7 is oscillated, the arm or link 6 is turned toward or from a horizontal position and the links 5 and 6 operate as toggle links, to lift the work support ng. arm into proper position for supporting the work while being operated upon.

The link 5 is provided with a lug 10, WhlCl'l engages the arm or link 6 at the time when the plvotal connection between said links is slightly above the line connecting the axis of the shaft 7 and the pivotal connectlon between the link 5 and the flange 4. When the parts are in this position, it will be seen that the work support is securely held in its raised position. By adiusting the bearing back and forth on the bed plate, the extreme upper position of the work support mav be varied.

.The needle 11 is secured to a needle lever 12, by means of a suitable clamping screw 13. The needle lever 12 is pivoted at 14 to a bearing stud carried by the overhanging arm 15 of the machine. The needle lever extends beyond its pivotal support and carries a ball stud 16 to which is pivoted a link 17. The opposite end of the link 17, is plvoted at 18, to one arm of a rock lever 19, which in turn is pivoted at 20 to a projecting lug 21,- carried by the standard. The other end of the rock lever 19 carries a ball stud 22, which is pivotally connected to one end of an eccentric pitman 23, cooperating with an eccentric 24, carried by the main shaft 25. The main shaft 25, is mounted in suitable bearings and runs lengthwise through the overhanging arm. Said shaft receives its rotation from a suitable belt wheel 26. At its forward end, the shaft is provided with a beveled gear 27., which meshes with the beveled gear 28, carried by a vertical shaft 29, mounted 1n suitable bearings in the forward end of the overhanging arm. The

main bearing for the shaft 29 is formed by v a collar 30, which is secured to the frame of formed in a lug 37, secured to the overhanging arm. The upper end of the looper sup port 35, carries a crank arm 38 having a ball stud 39 to which is pivoted a link 40. The opposite end of the link 40 is pivoted to a collar 41 by means of a pivot bolt 42. The collar 41 is provided with outwardly extending ears, between which the link 40 is pivoted. The collar 41 is loosely connected to the crank pin 33, by any suitable means.

The supporting bearing 36, for the looper support, is arranged at an incline to the vertical, and the axis of the looper is located substantially in the plane of movement of the needle, so that the looper point moves from a position in the rear of the needle, slightly downward into the needle loop, and then slightly upward so that the looper thread is properly positioned for the engagement therewith by the spreader.

The spreader 43 is carried by a spreader support 44 which is mounted in a bearing 45 formed in a lug 46, carried by the head of the machine. The upper end of the spreader support 44 is provided with a crank arm 45, which carries at its outer end a ball stud 46'. A link 47 is pivoted to the ball stud at one end, and is pivoted at its other end, between extending ears 48 carried by the collar 49, loosely secured to the crank pin 33. The bearing for the spreader support, is inclined to the vertical, and also slightly inclined to a plane passing at right angles to the plane of movement of the needle, so that the spreader in its movement will pass over the looper and cross over the seam to a position underneath the needle.

In the forward end of the work supporting arm 2, is an intermittently rotating feed wheel 50, having a crimping ridge 51 and fabric engaging teeth 52, 53, located on opposite-sides of said crimping member. Cooperating with the feed wheel and crimping member, are two presser members or feet 54 and 55. These members 54 and 55, are carried by arms 56 and 57 which are pivoted on an axis coincident with the axis of the needle lever. The springs 58 and 59 engage at one end the arms 56 and 57 respectively, and are secured at their upper ends, to the head of the machine. Suitable adjusting bolts 60 and 61. engage the springs 58 and 59 respectively, and serve to'hold the presser feet in position upon the material. Said presser feet are separated by a suitable hand lever 62 which carries a cam engaging between the arms 56 and 57. The presser foot 54 is provided with a needle guiding'groove, into which the needle passes in its forward movement and which serves to hold the needle from being deflected laterally.

The presser foot structure herein described, forms no part of the present invention but is shown, described and claimed in my co-pending application, Serial No. 405,356, filed on even date herewith.

I have provided my machine with a suitable finger 62 which is located directly above the work-crimping member 51, and extends across the plane of movement of the needle,

so that the stitch may be formed thereover, and as the work is fed along by the feeding member, the stitches are carried off from the stitch finger. Said stitch finger is supported by a bracket 63, secured to the lug 37 which supports the looper. The bracket 63 is provided with spaced ears which carry bearings for a shaft 64 to the outer end of which is adjustably secured the stitch finger by means of a slot 65, and screw 66. Said shaft 64 also carries an edge guide 67. The spring 68 engages the bracket 63, and the shaft 64 and normally holds the stitch finger in contact with the material being stitched.

The looper thread as it passes from the supply, is led through a guide eye 69, and thence to the looper eye 70, in the heel of the looper and follows the thread groove in the looper to the eye 71. It will be noted that as the looper starts on its backward movement from the position shown in Fig. 5, the looper thread will at first be entirely slack for the reason that the eye of the looper in its first movement backward, moves toward the previously formed stitch slightly, and further the eye at the heel of the looper moves toward the thread eye 69. This slack giving movement of the looper allows the spreader to carry the looper thread across the line of the seam and into position to be entered by the needle.

I have provided the front end of the overhanging arm with a face plate 7 2, which is pivotally connected to the head of the machine by a screw '73. Said face plate at its lower end has an outwardly projecting portion 74, which covers the looper operating link. The face plate 72, is held in closed position by a spring latch 75.

The operation of my device is as follows: The work suport is lowered by means of the hand lever 9, and the presser feet are separated by means of the hand lever 62.

work support and if it is desired to stitch an edge to a body fabric, and overseam the seam, said edge is guided by the edge guide 67 The presser feet are brought together on the work and the work support is lifted 3 to its normal position, the toggle links holding the same in said lifted position. As the needle moves forward, the same entersthe looper thread loop, held by the spreader at this time, as shown in ings. The needle in its continued forward movement, enters the guiding groove in the presser foot 54, and passes through the fabric which is crimped by the crimping 'face of the fabric as it entered. The work support may be adjusted so that the stitches will be entirely'e'mbedded in the fabric and concealed on the right side of the material or if desired, said work support, may be so adjusted that the stitches will slightly grin on the right side of the material.

. The needle enters the workclamped by the work support, and extending up between the presser members and passes underneath the stitch finger 62. As soon as the needle enters the loop carried by the spreader, the spreader is retracted and as the needle reaches the forward end of its stroke, the spreader is also reaching the backward end .of its stroke, and the bowed portion of the spreader engages the needle, see Fig. 7,

slightly deflecting the point and holding said needle so that as the looper moves for ward into the needle loop, there is no possibility of the looper striking the needle. bowed portion of the spreader therefore, engaging the needle, serves as a needle deflector or guard, to properly position the needle for the entrance of the looper. The looper now moves forward into the needle loop, which is thrown out as the needle begins its backward movement and said looper moves into .a position so that the spreader as it moves forward, will engage the looper thread between the eye of the looper and the material and carry said looper thread over the line of the seam into a position for the entrance of the needle. As the looper is retracted, after the spreader engages the looper thread, slack is given up so that the looper thread loop may be carried into position for the engagement of the needle, but as soon as the needle has engaged the looper thread loop, and the spreader is retracted from the looper thread loop, the eye at the heel of the looper moves beyond the thread guide 69, and begins to take up the slack in the looper thread, thus properly drawing the'loops of the looper thread taut, so as to set the stitch. The presser feet or members are yieldingly mounted, while the work support is ractically rigid when in normal position or holding the work and therefore, v after the parts are once ad uste d, the needle 5 will pass .through the same distance from Fig. 6 of the draw-,-

member 51 and emerges from the same su-r The left of the line of feed, as viewed in Fig. 1,

and the spreader support in rear of the path of the needle, as viewed in said figure, I am enabled to operate both the spreader and the looper from a common crank pin, and at the same time secure the proper timing of these,

parts so that they will coiiperate with each other and the needle, to form the stitch.

In Figs. 8 and 9, I have shown a modified form of needle operating mechanism. The needle lever 12 has an arm 75 carrying a ball stud 76, which is engaged by a link 77.,

pivoted in turn to a rock lever 78, fulcrumed to a bracket 79 carried by the head of the (machine. The opposite end of the rock le' Ver 78 is engaged by a link 80, which is operated from the main shaft 25 in any suitable manner. In this form of needle operating mechanism, it will be seen that the entire space underneath the overhanging arm is free from obstruction.

Having thus particularly described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination of a needle, alooper and a spreader, means for operating said needle, and means for operating said looper and spreader including a rotating shaft, a crank pin located on said shaft, devices for connecting the crank pin to the loop-er, and independent devices for connecting the crank pin to the spreader.

2. The combination with a work support and an overhanging arm, of a needle, a looper and a spreader, mounted on said overhanging arm, means for operating said needle and means for operating said looper and spreader, a crank pin, common spreader.

3. The combination of a work support, an overhanging arm, a needle, a looper, and a spreader mounted on said: overhanging arm, means for operating said looper and spreader including a vertical shaft, devices for connecting the vertical shaft to the to both the looper and including a rotating shaft and looper for oscillating the same, and inde-' needle, and means for operating said looper.

and spreader, including a vertical shaft. a crank pin carried thereby, and deviceseone necting said crank pin with said spreader, and with said looper.

5. The combination of a needle, a looper and a spreader, means for operating said needle and means for operating said looper and spreader, including a horizontal shaft, a vertical shaft geared thereto, a crank disk carried thereby, and a crank pin mounted on the crank disk and connected to said looper and to said spreader.

6. The combination with a work support, an overhanging arm, a needle head carried thereby, a main shaft mounted in the overhanging arm, a vertical shaft mounted in said needle head, and connected to said main shaft, a needle, means. for operating said needle, a looper and a spreader, and means carried by said vertical shaft, for operating said looper and spreader.

7. The combination With a Work support, of an overhanging arm, a needle head carried thereby, a main shaft mounted in the overhanging arm, a vertical shaft mounted in said needle head and connected to said main shaft, a needle, means for operating said needle, a looper and a spreader, means carried by said vertical shaft for operating said looper and spreader, said Work support being provided with a crimping member and means cooperating therewith to hold the fabric.

8. The combination with a Work support, of an overhanging arm, a main shaft mounted therein, a needle head carried at the forward end of said overhanging arm, a needle lever pivoted on said needle head, means for operating said needle lever from said main shaft, including a rock shaft carried by the arm of the machine, a looper and a spreader carried by the overhanging arm, means for oscillating said looper, and means for oscillating said spreader.

9. The combination with a work support of an overhanging-arm, a main shaft mounted therein, a needle head carried at the forward end of said overhanging arm, a needle lever pivoted on said needle head, means for operating said needle lever from said main shaft including a rock shaft carried by the arm of the machine, a looper and a spreader carried by the overhanging arm, a vertical shaft geared to said main shaft, and devices connected to said vertical shaft for operating said looper and spreader.

10. The combination with a Work support, of an overhanging arm, a main shaft mounted therein, a needle head carried at the forward end of said overhanging arm, a needle lever pivoted on said needle head, means for operating said needle lever from said main shaft, including a rock shaft carried by the arm of the machine, a looper and a spreader carried by the overhanging arm, a vertical shaft geared to said main shaft and devices connected to said vertical shaft for operating said looper and spreader, said work sup port being provided With ,a crimping member, and means for holding the fabric on said crimping member.

11. The combination With a work support of an overhanging arm, a main shaft mounted therein, a needle head carried at the forward end of said overhanging arm, a needle lever pivoted on said needle head, means for operating said needle lever from said main shaft, including a rock shaft carried by the arm of the machine, a looper, a vertical shaft geared to said main shaft, devices connected to said vertical shaft for operating said looper and spreader, said Work support being provided with a crimping member, means for holding the fabric on said crimping member.

12. The combination with a Work support, of an overhanging arm, a needle, means for operating said needle, a looper mounted on an axis inclined at an acute angle to the vertical and lying substantially in a vertical plane intersecting the line of the seam at right angles, a spreader mounted on an axis inclined to the vertical, and in a plane substantially at right angles to the first named plane, and means for operating said looper and spreader.

13. The combination with a Work support, ofan overhanging arm, a needle, means for operating said needle, a looper mounted on an axis inclined to the vertical and lying substantially in a vertical plane passing through the line of the seam, a spreader mounted on an axis inclined to the vertical and in a plane substantially at right angles to the first named plane, a main shaft mounted in the overhanging arm, a vertical shaft geared thereto, and devices connected to said vertical shaft for operating said looper and spreader.

14:. The combination with a work support of an overhanging arm, a needle, means for operating said needle, a looper mounted on an axis inclined to the vertical and lying substantially in a vertical plane passing through the line of the seam, a spreader mounted on an axis inclined to the vertical and in a plane substantially at right angles to the first named plane, a main shaft in the overhanging arm, a vertical shaft geared thereto, a crank disk carried at the lower end thereof, a crank pin mounted on said crank disk, and devices for connecting said crank pin to said looper and spreader.

15. The combination With a Work support of an overhanging arm, a needle, means for operating said needle, a looper mounted on an axis inclined to the vertical and lying substantially in a vertical plane passing through the line of the seam, a spreader mounted on an axis inclined to the vertical and in a plane substantially at right angles to the first named plane, means for operating said' looper and; spreader, said work support being provided with a crimping member, and means for holding the work upon said crimping member.

16. The combination with a Work support, of an overhanging arm, a curved needle, means for operating said needle, a looper mounted on an axis inclined to the vertical and lying substantially in a vertical plane passing through the line of the seam, a spreader mounted on an axis inclined to the vertical and in a plane substantially at right angles to the first named plane, said work support being provided with a crimping member, and means for gelding the work upon said crimping mem- 17. The combination with a vwork support, an overhanging arm, a needle, means for operating said needle, a looper mounted on an axis inclined to the vertical and lying substantially in a vertical plane passing through the line of the seam, a spreader mounted on an axis inclined to the vertical, and in a plane substantially at right angles to the first named plane, a main shaft in the overhanging arm, a vertical shaft geared thereto, a crank disk carried at the lower end thereof, a crank pin mounted on said crank d'sk, and devices for connecting said crank pin to said looper and spreader, said Work support being provided with a crimping member, and means for holding the Work upon said crimping member.

18. A stitch forming mechanism including a needle, a spreader, and a looper, means for operating said needle, means for operating said looper and means for operating said spreader, said'spreader being so constructed and arranged as to engage said needle, and hold the same in proper position for the looper to pass the needle and enter the needle loop.

19. A stitch forming mechanism, including in combination a curved needle, means for operating the same, a thread carrying looper and a spreader, said spreader inits movements engaging said needle and holding the same in position, so that the thread carrying looper may enter the needle loop, without striking the needle.

20. The combination of a work support, a crimping member, carried thereby, a curved needle moving substantially in a horizontal plane at the stitching point, a thread carrying looper coiperating with said needle, a spreader cooperating with the thread carrying looper and needle, said spreader in its backward movement engaging the needle and holding the same out of the path of the thread carrying looper.

21. The combination of a work support, an overhanging arm, a needle lever mounted on the overhanging arm, a curved needle carried thereby, a thread-carrying looper mounted on the overhanging arm and a spreader mounted on said overhanging arm, said spreader being soconstructed and arranged as to engage said needle and hold the same out of the path of the thread carrying looper.

22. The combination of a work support, an overhanging arm, a needle lever mounted on the overhanging arm, a curved needle carried thereby, a thread carrying looper mounted on the overhanging arm, and a spreader mounted on said overhanging arm said spreader being so constructed and arranged as to engage said needle and hold the same out of the path of the thread car-' rying looper, said work support, being provided with a crimping member and means for holding the Work upon said crimping member.

23. The combination with a work support of a crimping member, carried thereby, a curved needle, means for operating the same,

a looper cooperat ng with said needle at one side of the line of the seam. a spreader for engaging the looper thread loop and carrying the same across the line of seam, and into position for the needle to enter the same.

24. The combination of a wo k support. a crimping member carried therebv,a curved needle. a looper moving in a curved path alrove the path of the needle. and engaging the needle loop, a spreader mo ing in a curved path above the path of the loo er. across the seam. and below the pa h of the needle. whereby the looper th ead loo is carried ac oss said eam in posit on for the ent ance of the needle.

25. The combination with a Work support of a crim ing mem er carried the ebv. a curved needle. means for o e 'at nq the me a loo er cotiperat ng th sa d need e at one side oi the l ne of the seam. a sp e der for engaging the loo e thread loop and ea rving the same ac oss t e l ne of se m d into posit on fo the need e to P te the same. and a s itch fin e over which the loo er thread loops are. la d.

26. The com ination of a wo k su port. a crimping member carrier therebv. a curved needle. a loo er moving in a curved path above the path of the need e. and engag ng the needle loop. a. spreader mo ing in a curved path abo e the path of the looper, across the l ne of seam. and below the path of the needle. wherebv the loo er th ead loop is carried across said seam in posit on for the entrance oi the need e. and a stitch finger over which the looper thread loops are 27. The com ination of a work support, a crimping member, a needle. means for operating the same, a looper and a spreader, said sp eader, operating to carrv the looper th ead loop across the l ne of the seam. and a thread guide cotiperating with said looper,

whereby the backward movements of the looper draws the looper thread tight and aids in setting the stitch.

28. The combination with a work support, of a crimping member, means for holding the work on said crimping member, a curved needle, a thread carrying looper cooperating with said needle, a spreader for engaging the looper thread loop, and carrying the same across the line of seam into position for the entrance of the needle into the looper thread loop, and a thread guide cooperating with said thread carrying looper, whereby the looper in its backward movement draws up the looper thread loop, and aids in setting the stitch.

29. The combination with a work support, of an overhanging arm, a needle head carried thereby, a main shaft mounted in the overhanging arm, a vertical shaft mounted in said needle head and connected to said main shaft, a needle a pivoted needle lever carrying said needle, means for operating said needle lever, a looper and a spreader, means carried by said vertical shaft for operating said looper and spreader, said work support being provided with a crimping member and means cooperating therewith to hold the fabric, said means being pivoted on an axis, co-incident with the axis of said needle lever.

30. A sewing machine including in combination, a looper, a spreader, a rotating member, a crank pin carried by said rotating member, and means for operating said looper and spreader, from said common crank pin, said looper and said spreader being positioned in different radial directions relative to the axis of said rotating member whereby one of said implements operates in advance of the other.

31. In a sewing machine, a main shaft, a vertical shaft, a looper, a spreader, means for operating said spreader and looper from said vertical shaft, bearings for said looper and spreader, said bearings being inclined to the vertical, whereby said looper and spreader in their oscillation are given up and down movements.

32. The combination of an operating shaft, and needle, means for operating the same, a looper, a spreader devices for independently supporting said looper and said spreader, an operating part eccentrically located on said shaft, means intermediate said eccentric part and said looper and independent means intermediate said eccentric part and said spreader for operating said looper and spreader.

In testimony whereof I ailix my signature, in presence of two witnesses.

LANSING ONDERDONK.

Witnesses:

R. S. OSWALD, WALTER HARTLEY.

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