US378384A - Embboidebing attachment foe sewing machines - Google Patents

Description

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J. W. VON PITTLER. EMBROIDERING ATTACHMENT FOR SEWING MACHINES. N0. 378

,384. Patented Feb. 21, 1888.'

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J. W. VON PITTLEB,

EMBROIDERING ATTACHMENT FOR SEWING MACHINES.

No. 378,384. Patented Feb. 21, 1888.

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UNITED STATES PATENT rricn.

JULlUS \VILHELM VON PITTLER, OF GOHL-lS, LElPSlG, SAXONY, GER-MANY.

EMBROlDERlNG ATTACHMENT FOR SEW/iNG lhlAGl-HNES.

SPECIFICATION farming part of Letters Patent Ijile. 378.384, dated February 21, 1888.

Application tiled March :1 188?. Serial No. 125 102. (No modeLl Patented in England February 2, i887, 170.1,65'3.

To all whom it may concern;-

Be it known that I, J ULIUS Winn ELM you PITTLER, of Gohlis, Lcipsic, in the Kingdom of Saxony and Empire of Germany,- have i'ir vented a new and useful Improvement in Eur broidering Attachments for Sewing-Hachi nes, of which the following is a specification.

This invention is embodied in English Patent No. 1,682, dated February 2, 1887.

This invention relates to apparatus for producing embroiderywork; and it consists in the employment of certain arrangements of mechanism, hereinafter described, for imparting a uniform motion to the cloth or foundation material on which the embroidery is to be produced; and in order that my said invention may be fully understood, I shall now proceed more particularly to describe the same, and for that purpose shall refer to the several figures on the annexed sheets of drawings.

The same letters of reference indicate corresponding parts in all the figures.

Figures 1 to of the accompanying drawings are diagrams illustrating combinations in which two pantograph arrangements are employed to operate one cloth-holder, as hereinafter explained. Figs. 6 and 7 illustrate combinations in which two pantograph arrangements are employed to operate several clothholders. Figs. 8 and 9 illustrate a combination in which one cloth-frame operated by a pantograph arrangement or otherwise is employed in combination with several sewinginachines.

In the combination illustrated in Figs. 1 and 2 two coupled pantographs, A and B, of equal size and proportions, are arranged side by side, being pivoted on fixed centers 0. a, carried by stationary bar or plate a, and they are so ar ranged in different planes that the levers of the pantograph A pass over those of the pantogra-ph 13, so as not to interfere with the movements of the latter.

The ends of the levers A B, from which the pantographs A and B receive their motions, are united or hinged together at G, where they are connected to a suitable tracing-point and handle, as indicated more clearlyin Fig. l. The two pantographs A and B are connected at c and (Z to a cloth-holder, D. This cloth-holder D is preferably made of circular shape, being composed of two concentric rings fitting oneinto the otherand clipping the cloth or material between them, the outer ring be ing tightened upon the inner ring by a screw or other suitable arrangement.

The bar a is rigidly attached to the frame or bed-plate of a sewing-machine of suitable construction, in such manner as to present the cloth or foundation fabric on the holder D in a suitable position under the needle, and the design or pattern which is to be reproduced in the embroidery is placed under the tracer at C. By moving the tracer by means of the knob or handle over the lines of the pattern, the pantographs A and B are caused to move the cloth-holder Din a corresponding manner, whereby the design or pattern is enabled to be reproduced by the stitches on a reduced or other scale.

Figs. 3 and 4. illustrate an arrangement in which the two pantographs A and B, though of similar proportions, are of unequal size. This arrangement works in a similar manner to that illustrated in Figs. 1 and 2, as will be readily understood on referring to the drawings.

Fig. 5 illustrates an arrangement wherein the two coupled pantographs A and B are of equal size and proportions and work on fixed centers a 0:, arranged at opposite sides of the machine, as indicated in the drawings, the effect produced being similar to that obtained by the arrangements hereinbefore described.

According to an arrangement illustrated in Figs. 6 and 7, two pantographs, A'and B, are employed in combination to operate a number of cloth-holders simultaneously, as hereinafter described. This embroidering apparatus comprises a number of sewing-machines, E, four such machines being shown in the arrangement illustrated; but it is evident that any other suitable number may be employed, if desired. These machines are placed at suitable distances apart, being driven with the objcct of obtaining simultaneous action by bevelgearfg, operated by one (lriving-shaft,e,co1nmon to all machines. The shaft 0 is worked either by a treadle and driving-pulley,with a cord arranged on the pulley h on the said shaft in the same way as an ordinary scwing-machine, or, in case the sewingmaehines are so numerous as to require greater power, by any other suitable motor. Each machine works upon a separate cloth-holder, D, each holder being rigidly attached to the same bar, This bar is similarly acted on at the two extremities c and d by the oppositely-arranged panto' graphs A and 13 working on fixed centers a, and serving to impart the required movements to the said bar and the'cloth-holdcrs attached thereto. These pantographs are united at a common tracing-point, O, as in the arrangements hereinbefore described.

Figs. 8 and 9 illustrate an arrangement which is employed for working one clothframe, F, carrying a piece of foundation fabric, which by means of the arrangement is enabled to be worked upon by several sewingmachinessimultaneously. The cloth frame or holder F is attached to a bar, 0, and consists of a rectangular frame provided at its two eX- tremities or short sides with rollers G, one of which is shown in Fig. 9 drawn to the same scale. Each of these rollersG is provided with a row of tenter hooks or pins, It, inclined in opposite directions, to which the cloth or foundation material to be worked upon is attached or hooked, being afterward drawn tight by turning the rollers in opposite directions by means of pawl-levers Z, provided with pawls acting on ratchet-wheelsm, the rollers being prevented from running back by a pawl, 02, and spring a until the material is required to be taken off. This frame is connected at t to the pantograph A, working on the fixed center a, and operated in the usual manner by a lever, A, provided with a suitable handle and tracer at O.

In order that every point on the cloth may be compelled to move uniformly with the pantograph, the frame is connected to a bar, 0, connected by links 19 r to a fixed bar, 8. The

links 9 r are also connected to a bar, q, and form therewith an arrangement resembling a double parallel ruler, the bar 8 being station ary and the links 12 1- being maintained invariablyparallel therewith by the said links. By referring to the drawings, Fig. 8, it will be readily understood that the effect of this con bination is to cause every point on the foundation fabric to move equally and similarly when the frame F is operated by the pantograph. The cloth or fabric is thus enabled to be operated on at several different points by any desired number of sewing-machines, E, operated by a common driving-shaft, e, and bevel-gear f g, as hereinbefore described. When this arrangement isemployed to produce designs in embroidery on the same scale as the pattern, the pantograph A is removed and the tracing-points are directly attached to the frame F on the right or left hand sides of the frame, as indicated by the dotted lines at O, for example.

I reserve the right to claim in another application, No. 255,541, filed November 18, 1887, the improvements in gang sewingmachines hereinbefore shown and described, but not claimed in this application.

\Vhat I claim, and desire to secure by Letters Patent of the United States, is

1. In an embroidering attachment for sewing-machines, the combination of two pantographs united at a common tracing-point and having a cloth holder or holders, substantially as described.

2. In an embroidcring apparatus, the combination of two pantographs, such as A and B, united at a common tracing-point, O, and connected to the cloth holder or holders by a bar, 0 (Z, whereby a uniform motion is imparted to the said holder or holders, substantially as hereinbefore described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JULIUS WILHELM VON PI'ITLER.

\Vitnesses:

CARL BORNGRAEBER, BERNH. PoERscHMANN.

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