US1166279A - Ornamental-stitch sewing-machine. - Google Patents

Description

V. J. VAN HORN.

ORNAMENTAL STITCH SEWING MACHINE.

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VANDIVER J. VAN HORN, OF CHICAGO, ILLINOIS, ASSIGNOR TO UNION SPECIAL MACHINE COMPANY. OF CHICAGO. ILLINOIS, A CORPORATION OF ILLINOIS.

ORNAMEN'IAL-S'IITCH SEVJING-MACI-IINE.

Specification of Letters Patent.

I atented Dec. 28, 1915.

Application filed February 13, 1911. Serial No. 608,372.

'0 (M whom it may concern:

Be it known that I, VANDIVER J. VAN HoRN, a citizen of the United States, residing at Chicago, county of Cook, State of Illinois, have invented certain new and useful Improvements in Ornamental- Stitch SewingMachines, of which the following is a description, reference being had to the accompanying drawing and to the letters and figures of reference marked thereon.

The invention relates to new and useful improvements in ornamental stitch sewing machines of the type shown in my Patent No. 1,134,564 dated April 6th, 1915.

An object of the invention is to provide a sewing machine having a plurality of needles, with thread manipulating devices for laying a thread back and forth in front of said needles, and for carrying a certain portion of said thread back of the path of certain of the needles in certain of the reciprocations of said needles.

In the drawings which show by Way of illustration, one embodiment of the invention, Figure 1 is a view of the forward end of a sewing machine having my improved mechanism applied thereto. Fig. 2 is a plan view of the throat plate and presser foot, also showing the position of the needles, and one position of the thread manipulating devices. Fig. 3 is a View similar to Fig. 2, showing the thread manipulating devices in another position. Fig. 4 is a detail of the thread guiding device for the ornamental thread. Fig. 5 is a sectional view through the carrier for the thread manipulating fingers showing said fingers in side view. Fig. 6 is a detail view showing on an enlarged scale, the ornamental stitkzhl made by my improved mechanism, and one position of the thread guide and thread fingers, and Fig. 7 is a plan view of the arm supporting the shank of the thread-carrying device.

The work support 1, the overhanging arm 2, the needle lever 3 and the needle bar 4, are of the usual construction in this type of machine. Said needle bar carries the needles 5 and 6 at its lower end. Any suitable form of stitch forming mechanism may be. employed for cooperating with said needles beneath the material. The presser foot 7 is carried by a presser bar 8 and is provided with two needle slots 9 and 10 which are separated by a stitch supporting tongue. The thread carrying device 11, is mounted in a depending shank 12 carried by an arm 13 shown in top plan view in Fig. 7.

The arm 13 is pivoted at the rear of the machine, and is oscillated by a link 14fv connected to a depending arm 15 mounted on the shaft 16. Said shaft 16 may be oscillated by any suitable mechanism and will impart to the thread guiding arm 11 an oscillation back and forth across the line of feed of the machine, in a path in front of the needles. Said thread arm is provided with a laterally curved portion 17, which carries a thread guiding tube 18. An ornamental thread may be led through said thread guiding tube 18 and through one of the thread guides 19 carried by said arm 13, and thence through a thread guide 20 at the upper end of the needle bar. Said thread may also be passed underneath a stationary thread wire.

21 and from thence through suitable thread guides and a tension to the source of supply.

Cooperating with the thread guiding arm 11, are the thread fingers 22 and 23. Said fingers 22 and 23 are preferably carried by an arm 24: mounted on the lower end of a shaft 25 supported in bearings formed in a bracket supported by the overhanging arm. This shaft is oscillated by means of a link 26 which is connected to an arm 27 carried by a sleeve 28. Said sleeve 28 may be oscillated by any suitable mechanism and will in turn oscillate the thread fingers 22 and 23. Said thread fingers 22 and 23 are curved and so disposed that the thread finger 22 moves in a path between the needles 5 and 6, while the thread finger 23, moves in a path at the left of the needle 5. The thread finger 22 is bent upward or provided with a hump 29, (see Fig. 5). The thread finger 23 is also provided with a hump or shoulder 30 on its upper face. Said thread fingers are secured to the arm 24 by suitable set screws 31.

The means for oscillating the thread guiding arm and the thread fingers is preferably so timed that said thread fingers will reciprocate twice to one reciprocation of the thread guiding arm. The thread guiding fingers are also reciprooated in unison with the reciprocation of the needles. As shown in Fig. 2, the thread guiding arm 11 is positioned at the left of needles 5 and 6, and the thread supporting fingers 22 and 23 are so positioned that the ornamental thread 04 carried by the thread guiding arm 11 has been led across the fingers 22 and 23 at a point in rear of the needles 5 and 6. The arm 24 will oscillate still farther from left to right, so that the thread a will be dropped and secured to the material by the needle threads. The arm 11 at the next reciprocation of the needles is moved to a position shown in Fig. 3, and again carries the ornamental thread a across the thread supporting fingers 22 and 23. The needles at this time are substantially at the upper end of their stroke so that as the thread fingers 22 and 23 are retracted, the hump 29 on the finger 22 will carry the thread a back of the path of the needle 6, so that said needle will enter the material in front of the thread a. The finger 23 is longer than the finger 22 and the shoulder is therefore, in front of the needle 5 so that the needle thread a is supported by the finger 23 in such a manner that the needle 5 enters back of said thread a.

In Fig. 6, I have shown diagrammatically the stitch formed by my improved mechanism and in this figure, the pairs of needle punctures are indicated by c, 0, c, c, 0", 0, etc. This figure also shows the position of the needles 5 and 6 and the thread fingers 23 and 22 at the time when the ornamental thread a is positioned to be back of the path of the needle 6 and in front of the path of the needle 5.

While I have shown two needles and two thread supporting fingers, it is obvious that any number of needles within certain limits may be used and a thread supporting finger provided for each needle if desired.

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

1. A sewing machine including in combination, a plurality of needles, a thread carrying device for guiding an ornamental thread, said thread carrying device moving from a position at one side of'said needles to a position at the other side thereof and in a path in front of said needles, thread supporting fingers over which the ornamental thread is laid by said guiding device, and means for reciprocating said thread supporting fingers so that the needles in certain reciprocation thereof will enter the material one in front and the other in rear of the ornamental thread.

2. A sewing machine including in combination a plurality of needles, a threadcarrying device for guiding an ornamental thread, said thread-carrying device moving from a position at one side of said needles to a position at the other side thereof and in a path in front of said needles, a thread supporting finger andmeans for moving said thread-supporting finger from a point in front to a point in rear of the needles said finger having a shoulder formed on the upper face thereof adapted to engage and carry the ornamental thread in rear of one of the needles.

3. A sewing machine including in combination a plurality of needles, a threadearrying device for guiding an ornamental thread, said thread-carrying device moving from a position at one side of the needles to a position at the other side thereof, and in a path in front of the needles, and a plurality of thread fingers movable from a point in rear to a point in front of the needles, and so positioned that said ornamental thread is laid over said. fingers. one of said thread fingers having a shoulder on its upper face adapted to engage the ornamental thread and ca my the same in rear of one of the needles.

4:. A sewing machine including in combination, a plurality of needles, means for guiding and positioning an, ornamental thread relative to said needles, a plurality of engaging fingers one of which moves in a path between the needles and the other of which moves in a path outside of said needles, said thread engaging fingers having thread engaging portions on their upper faces which are located in different positions relative to said needles.

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

VANDIVER J. VAN HORN.

Witnesses:

GEORGE N. B. Lowns, EARL O. IMMEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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