US1427564A - Shuttle embroidery machine - Google Patents

Description

E. VERSE. SHUTTLE EMBROIDERY MACHINE. APPLICATION FILED AUG. 25' I92].

, 427. 5 4 Patented Aug. 29,1922. 1 I. fl 2 sugars-smut I.

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E. VERSE.

- SHUTTLE EMBROIDERY MACHINE. APPLICATION FILED Aums, 1921'. v

Patented Aug. 29, 1922.

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Emits vnnsn, or CHEMNITZ, GERMANY, assien'onmoMAscHINnNFABmK K PP AKTIENGESELLSUHAFT, or Karrie-L; CHEMNITZ, ennmanmn COMPANY OF-GER- 'MA'NY. I

SHUTTLE EMBROIDERY MAGHINE Specification of Letters'latent. Patentgd A11 29, 1922,

Application filed August 25, 1921. Serial No.=495,209.

(GRANTED UNDER THE rnovisrons or THE ACT or'iviancn 3, 1 1921, 41 smart, 1313,

To (ZZZ whom it may concern.

lie it known that I, EMU. Vnnsn, a citizen of Germany, and a resident of Ghemnitz, Germany. have invented certain new and usefulIn'iprovements in Shuttle Embroid ery- Machines (for which I have obtained atents in Germany numbered 344,34l and 17,261), of which the following is a specification.

This invention relates to shuttle embroidery machines wherein curved shuttles are reciprocated in curved shuttleraces inclined at an angle of less than 90 de rees to the longitudinal axis of the machine.

In machines of this type it is necessary not only to propel the shuttle in a curved path within the curved shuttle race, but also to traverse the shuttle substantially at right angles thereto, owing to the inclination of the shuttle race.

According to the present invention the shuttle is propelled in the usual manner by means of a driving element projecting from an oscillatory shaft, but instead of travers ing the shuttle by axial displacement of the shaft as heretofore proposed the shuttle is traversed by means of axial displacement of a longitudinal member interposed between the driving element and the shuttles. In this manner the weight of the parts which require to be longitulinally displaced is considerably diminished. I

A further object of this invention is to minimize vibration of the machine frame, due to reversal of movement during axial displacement of the longitudinal member first in one longitudinal direction and then in the other.

Reference will be hereinafter made to the accompanying explanatory drawings where- Fig. 1 is a fragmentary cross section showing the main parts of the shuttle mechanism.

fig. 2 is a plan of Fig. 1.

Fig. 3 is a rear elevationof the mechanism.

Fig. 4 is a side view, partly in section, and Fig. 5 a plan showing amodified arrangement.

Figs. 6 and 7 are views corresponding to Figs. 4c and 5 showing a further variation.

Fig. 8 is a viewcorresponding to Fig. 1

showing a further development thereof and Fig. 9 is fragmentary rear view thereof.

As shown in F igs. 1,.v 2. and.;3', the .oscillatory driving shaft lcarries arms or; driving elements 2 supporting alongitudinal bar'3, the shuttles 4 being reciprocatediwithin curved shuttle races 5 bymeans of; drive pins'G. The shuttle races 5 are also' inclined at an angle of less than 90 degreees to the longitudinal axis of the machine (as clearly seen in Fig. 3).

The shaft 1 is mounted in bearings 7 which also support the shuttle race bar 9. Thearms 2 are pivotally connected to the shaft 1 by means of sleeves 13 and hinge pins 14; and are also pivotally connected to the bar 3 by shackles 15. A shaft 11, toothed sector 12, rack and guides 8 serve to draw out the rear carriage in the usual manner when inserting the material. The hinge pins 1 1 and shackles 15 of the arms 2 enable the bar 3 to follow the inclination of the shuttle races during the oscillations imparted to it from the oscillatory shaft 1, without necessitating axial displacement of the latter.

The displacement of the bar 3 may be effected in variousways. In Fig. 3 the bar 3 carries a roller 16 working in inclined guides 17 fixed upon the shuttle race bar 9. in Figs. 1 and 5 the bar 3 is supported by brackets 18 slidable upon pins 19 projecting from levers 20 fixed upon the shaft 1. In Figs. 6 and 7 the arm 21 fixed upon the shaft 1 is shaped at its extremity to form a guide for the sliding bar 3.

In order to minimize vibration of the machine frame due to the reversal of movement of the bar 3, the latter may be displaced longitudinally by the same driving mechanism as that effecting the oscillation of the shaft 1. As the longitudinal movement of the bar is small in comparison to its oscillatory movement, the mechanism may be designed to provide very smooth operation of the machine. Such an arrangement is illustrated in Figs. 8 and 9. The shaft 1 is oscillated from a cam'22 by means of a lever 23, rods 24- and 25 and crank 26'. The bar 3 is connected to the rod 25by a link 27 and bell inclination of the shuttle races 5through the medium of the crank 28 and link 27.

Claims: I

1i In a shuttle embroidery machine, a curved shuttle race inclined to the longi-- tudinal axis of the machine, a shuttle Within said race, an oscillatory driving shaft fixed against axial displacement, a longitudinal member carried b said shaft, and adapted to drive the shuttle and means for longitudinally displacing said longitudinal memher in relation to the driving shaft.

2. In a machine as specified in claim 1, arms pivotally connected to the longitudinal member and to the shaft to permit of the longitudinalmovement of said member rela tive to said shaft.

3. In a machine as specified in claim 1,

member carried by said shaft and adapted to drive the shuttle, a reciprocatory rod, means for reciprocating said rod, a crank connecting said rod and the shaft and a bell-crank connection between said rod and the longitudinal member for displacing the latter.

In testimony whereof I hereunto affix my signature.

EMIL VERSE.

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