US1084904A - Shuttle mechanism for embroidering-machines. - Google Patents

Description

M. SCHOENPELD.

SHUTTLE MECHANISM FOR EMBROIDERING MACHINES.

APPLIOATION FILED MAE. a, 1913.

1,084,904,. Patented Jan. 20, 1914.

2 SHEETS-SHEET 1.

Fig .2.

M. SOHOBNPELD.

SHUTTLE MECHANISM FOR BMBROIDERING MAGHINES.

APPLICATION FILED MAR. s, 1913.

1,084,904. Patented Jan. 20, 1914.

2 SHEETS-EHIIET 2.

Fig.5.

lull-v Arron/vs) COLUMBIA PLANOGRAPM CCl-,WA3IIINOTON, D c.

MORRIS SCHOENFELD,

or RORSCHACI-I,

SWITZERLAND.

SHUTTLE MECHANISM FOR EMBROIDERING-MACHINES.

nosaooa.

Specification of Letters Patent.

Patented Jan. 2(), 1914.

Application filed March 5, 1913. Serial No. 752,117.

To all whom it may concern:

Be it known that I, MORRIS SCIIOENFELD, a citizen of the United States, and resident of Rorschach, Canton of St. Gall, Switzerland, have invented new and useful Improvements in Shuttle Mechanism for Embroidering-Machines, of which the following is a full, clear, and exact specification.

My invention relates to cmbroidering machines of the large type wherein a large number of stitching elements are arranged in a plurality of superimposed rows and more particularly the invention relates to a shuttle mechanism for machines of this kind.

In embroidering machines having more than two rows of stitching mechanisms, the rows of embroidery produced by each set of stitching devices comes in closer relation to each of the other rows, than where only two rows are used. Yet, however it is very often desirable or necessary to produce embroidcry in rows separated a greater distance one from the other than the several rows of stitching mechanisms are arranged for. For instance, in a machine having four rows of devices arranged at definite heights it may be desirable to produce embroidery with the uppermost and the lowermost rows of devices alone, or it maybe desirable to produce embroidery by means of the two intermediate rows of devices alone. For these purposes, the shuttle mechanism of embroidering machines of this kind has already been so arranged that any one or several of the rows of stitching devices may be retracted out of their operative position into an inoperative one, while others perform their function in the production of embroidery.

The object of the present invention is to simplify the construction of such retractable shuttle mechanisms for embroideringmavention which relates to embroidcring machines with more than two shuttle mechanisms, the driver bar of each shuttle mechanism is so coupled with the corresponding shuttle track bar, retractably mounted, that when the shuttle track bar is retracted into lIlOPOI'ttlVO position, the driver bar is also carried back together with the shuttle track bar, without, however, interfering with its driving mechanism, so that the thus retracted driver bar is allowed to continue its up and down movement in inoperative position together with the other driver bars left in operative position.

The accompanying drawings represent two embodiments of the present invention as applied for instance to a four row embroidering machine.

Figure 1 is a partial back view of one form of construction. Fig. 2 is a corresponding vertical section, certain parts being broken away. Figs. 3 and 4L show by similar corresponding views the second formof construction.

As shown in Figs. 1 and 2, the machine frame is indicated by 1 and is provided with holes for receiving the bolts or plungers 2 constituting the carriers for the shuttle track bars 3. The machine is shown as comprising four shuttle track bars 3 to which correspond four driver bars 12, the driver bars 12 being in the usual manner arranged above the corresponding shuttle track bars 3 and parallel to them. The shuttle track bars 3 are arranged so as to be capable of being retracted each independently of the others, the plungcrs 2 being slidable in the guide-holes of the machine frame 1. The driver bars 12 receive, as is also usual in machines of such kind, an upwardly directed toand fro-inovement and they are driven to this end by means of an obliquely arranged common driving rod 7 extending from below to above across all the driver bars 12. The machine having a certain length, it is obvious that there are a convenient number of such driving rods distributed over all the length of the machine. The driving rod 7 is guided by brackets 8, 9 and 10 fixed to the machine frame 1. At its lower end, it is connected by a link 6 to a bent lever 5 carried by the machine frame and connected to a reciprocating rod 4, so that when the latter is reciprocated, the driving rod 7 has imparted to it an alternate up and down movement. The driver bars 12 are connected with their common drive rod 7 in the following manner. The driver bars 12 are supported by rear bolts 13 slidably guided in apertures of supporting brackets 11 rigidly fixed on the driving rod 7 the driver bars 12 being thus movable in a direction perpendicular to the embroidery material indicated in Fig. 2 by a dot-and-dash line. They are secured in their relative position with regard to the corresponding shuttle track bars 8 by means of a coupling device so constructed that it positively connects the driver bars with the shuttle track bars for the backward and forward movement, but allows of the free up-anddown-movement of the driver bars relatively to the shuttle track bars. This coupling device consist for instance of a depending guide-rod 14L fixed to the driver bars and slidably engaged with a guide-socket 15 fixed to the corresponding shuttle track bars.

It will be obvious from the preceding statement that when any one of the shuttle track bars 3 is retracted into inoperative position, the corresponding driver bar 12, owing to the fact that it is coupled therewith, is also carried back into inoperative position, whereby the supporting bolts 13 slide backward in their supporting brackets 11. However, it is noted that the driving relations between the driving rod 7 and the thus retracted driver bar remain unaltered, so that the thus retracted driver bar continues to be moved up and down together with the other driver bars which remained in their operative position relatively to the embroidery frame.

The constructional form represented by Figs. 3 and 4: differs from the first one in that the supporting brackets 11 for the driver bar supporting bolts 13, connected to the drive rod 7 are slidably guided on an obliquely directed stationary bar 17, the drive rod 7 together with said brackets 11 being carried along the said fixed bar 17 under the control of the bent lever 5.

What I claim is:

1. In embroidering machines, a plurality of superimposed shuttle mechanisms, each shuttle mechanism comprising a retractable shuttle track bar and a movable driver bar, driving means for moving the driver bars of the shuttle mechanisms up and down to actuate the shuttles, and coupling means between the shuttle track bar and the driver bar of each shuttle mechanism to produce retracting of the driver bar when the shuttle track bar is retracted into inoperative position without interfering with said driver bar driving means, so that the retracted driver bar is allowed to continue its up and down motion, substantially as described.

2. In embroidering machines, a plurality of superimposed shuttle mechanisms, each shuttle mechanism comprising a retractable shuttle track bar and a movable driver bar, upright driving rods for moving the driver bars of the shuttle mechanisms up and down to actuate the shuttles, supporting bolts on the driver bars, supporting brackets connected to said driverbar driving rods for slidably supporting said driver bar supporting bolts, and coupling means between the shuttle track bar and the driver bar of each shuttle mechanism to produce retracting of the driver bar relatively to said driving rods when the shuttle track bar is retracted into inoperative position, without interfering with said driving rods which may continue their driving movement, substantially as described.

3. In embroidering machines, a plurality of superimposed shuttle mechanisms, each shuttle mechanism comprising a movable shuttle bar and a movable driver bar in combination with means for allowing retraction of one of said two bars, driving means for moving the driver bars of the shuttle mechanisms up and down to actuate the shuttles, and coupling means between the shuttle track bar and the driver bar of each shuttle mechanism to produce, when the retractable bar is retracted into inoperative position, also simultaneous retraction of the other bar of the shuttle mechanism, said coupling means being arranged so as to not interfere with the up and down movement of the driver bars, substantially as described. 7

4. In embroidering machines, a plurality of superimposed shuttle mechanisms, each shuttle mechanism comprising a retractable shuttle track bar and a movable driver bar, upright driving rods for moving the driver bars of the shuttle mechanisms up and down to actuate the shuttles, supporting bolts on the driver bars, supporting brackets conwith the driving movement of the driver bar, substantially as described.

5. In embroidering machines, a plurality of superimposed shuttle mechanisms comprising retractable shuttle tracks and movable driving bars, driving means for moving the driving-bars of the shuttle mechanisms up and down to actuate the shuttles and means to retract the shuttle driving bars my name this 19th day of February 1913, into inoperative position without interfering in the presence of two subscribing witnesses.

with said drivin means, so that the retracted driving bars Zfre allowed to continue their MORRIS SCHOENFELD' up and down action, substantially as de- Witnesses: scribed. Ososn Loss,

In witness whereof I have hereunto signed FRIEDRICH STEINER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O."

Images