US1341160A - Pantograph embroidery-machine - Google Patents

Description

P. zUsT AND 1. METZGER.

PANTOGRAPH EMBROIDERY MACHINE. APPLICATION FILED IULY13l 1916. RENEWED JAN. 23, 1920.

Patented May 25, 1920.

UNITED STATES PATENT OFFICE.

PAUL ZST, OF RHEINECK, ANI) JOHANN METZGER, F HEIDEN, SWITZERLAND, ASSIGNORS TO THE FIRM OF STAHELI, RIETMANN & CO., OF ST. GALLEN,

SWITZERLAND.

PANTOGRAPH EMBROIDERY-MACHINE.

Application led July 13, 1916, Serial No. 109,136. Renewed January 23, 1920.

public of Switzerland, the first residing at Rheineck, Switzerland, the second residing at Heiden, Switzerland, have invented certain new and useful Improvements in Fantograph Embroidery-Machines, of which the following is a specification.

The object of our invention is a device for shuttle embroidery machines for the manuf- `facturing of curtains. The invention lies in the fact that for every single shuttle, two or more needles come into action simultaneously and serve to form a kind of festoon or decorative chain embroidery; also in the fact that the embroidery frame is moved by means of a pantograph in the transmission ratio of 1 1.

The object of the invention is shown by means of an example on the drawing, in the following way:

Figure 1 shows a longitudinal section of the stitch, on a considerably enlarged scale.

Fig. 2 is a side view of the arrangement of the needles and of the shuttle track.

Fig. 3 is a front view of the arrangement of the needles.

Fig. 4 is a plan view of the arrangement of the needles.

Fig. 5 is a front view of the shuttle track.

Fig. 6 shows the pantograph in connection with the embroidery frame.

In Fig. 1, the numbers 1 and 2 indicate the foundation material (tulle and application material), which has to be embroidered. 3 and 4 represent two adjacent needle threads which lie directly alongside one another on the front side of the embroidery. The shuttle thread is indicated by 5. The slip-knots a and b, which are Jformed by the needle threads and lie alongside one another, are,

according to the present invention, simultaneously produced, and tied up in pairs by a shuttle. For this pur ose, for every shuttle s, two needles 6 and ,lying alongside one another. are attached to the needle bar, which latter is indicated on the drawing by 9. One of the needles lies somewhat higher than the other, this difference of height being attained by means of the small block 8, which contains a hole for the upper needle 7, and a groove for the lower needle 6, which Groove lies exactly above a groove situated in the Specication of Letters Patent.

needle bar 9. The' needle 6, together with the small block 8, is fastened to the needle bar 9 by means oi the screw 10, while the needle 7 is tightly fixed into the hole of the small block 8 by means oi the separate screw 11. The eyes of both needles thus lie in such a manner that the needles can be threaded from the same side. Owing to the arrangement oil' two needles for every shuttle, the middle hole 13 of the shuttle track 12 has been accordingly made of larger dimensions than is otherwise customary. Fig. 5 shows how the needles lie opposite to one another in the shuttle track.

In order, when embroidcring, to be able to use the embroidery card exactly according to design and enlargement of the pattern, the machine is also provided with a pantograph 111, which has a ratio of transmission of 1:1, instead of 1:6, as is customary. The pantograph is connected with the embroidery. iframe, and can be adjusted. The transmission of the pantograph natu# rally requires a greater expenditure of effort on the part of the embroiderer, but this may be partially overcome by the spring 18 which grips the lower arm of the pantograph. Moreover, the pantograph is balanced in a sidewise direction by two springs 16 and 17 working against one another, as soon as it is moved from its middle position to one or other side. These two springs are attached to the upper part of the pantograph.

In connection with the embroidery frame 15, it should be remarked that same must be fitted into the machine frame in such a manner that it can be moved in a sidewise direction for the execution of large patterns in connection with the pantograph.

The result of the invention is that two stitches lying alongside one another can be embroidered at the same time. This consequently quickly produces a double-row stitch, which does not become undone when the embroidery is being cut oil or washed.

Te claim:

1. An embroidering machine having a pantograph operated fabric frame and a horizontal needle bar extending along said iframe; in combination with needles arranged in pairs along said bar and a single shuttle simultaneously coperating with each pair of needles. v

2. An embroidering machine having a pantograph operated fabric frame and a horizontal needle bar extending in front of said frame; in combination with needles mounted in pairs along said bar, the needles of each pair being both vertically and hori- Zonially spaced, and a single shuttle simultaneously coperating with each pair of needles.

8.' An embroidering machine having a pantograph operated fabric frame and a horizontal needle bar; in combination with a block at each stitching position on said bar, a screw for clamping said block to said bar and thereby clamping a needle between the block and bar, said block having a horizow tal needle seat vertically and laterally spaced from the first needle position, and a screw for clamping a needle in said seat.

In testimony whereof we have allixed our signatures in presence of two witnesses.

PAUL ZUST. JOHANN METZGER.

Witnesses FRANK TIMMKE, EMIL MEILE.

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