US471054A - Thread unwinding device foe se - Google Patents

Description

' (No Model.)

N. HOWE 8a A.- L. BUSH.

THREAD UNWINDING DEVIGE' FOR SBWINGMAGHINBS. No. 471,054. Patented Mar. 15,1892,

F513 5: h l.

UNITED STATES PATENT Genres.

NATHAN HOl/VE AND AUGUSTUS L. BUSH, OF WORCESTER, MASSACHUSETTS, ASSIGNORS TO THE GLASGO THREAD COMPANY, OF SAME PLACE.

THREAD-UNWINDING DEVICE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 471,054, dated March 15, 1892.

Application filed September '7, 1891- Serial No. 404,969 (No model.)

To all whom it may concern.

Be it known that we, NATHAN HOWE and AUGUSTUS L. BUSH, both of Worcester, county of lVorcester, State of Massachusetts, have invented anlmprovement in Spool-Supporting and Thread-Directin g Stands or Guides, of which the following description, in connection with the accompanying drawings, is aspecification, like letters and figures on the drawings representing like parts.

It is a great desideratum in connection with sewing-machines run in factories that the thread-supply be as great and constant as possible, and hence the thread is wound in large masses.

In practice large spools or bobbins of thread have been set over vertical spindles placed at one side of the machine and the thread has been led to the usual tension device and needle.

In accordance with the invention herein to be described the thread, wound into cylindrical or conical form or package in any manner whatever, is led from'the mass of thread without rotation of the latter and is conducted through a guide-eye and then through a delivery-eye, the latter eye being on a inovable arm, this movable arm enabling the thread to be led away in any direction, the two eyes, contacting with the thread at two points somewhat distant, co-operating to prevent the thread kinking.

Figure 1, in elevation, shows a standard adapted to support two bobbins or cops of thread, also two guide and delivery eyes for the thread; Fig. 2, a left-hand end view of the apparatus shown in Fig. 1; and Figs. 3 and 4 show details of the guide and delivery eyes.

The standard A, of any suitable shape, is represented as provided with feet or ears a a, through which are passed screws a, which fasten the standard in any desired place, on abench or otherwise, near the sewing-machine, to which one or both the threads If t, taken from the thread masses, to be described, are to be lead, the thread t supplying, for instance, an eye-pointed needle and the thread if an eye-pointed or other looper. The standard is shown as provided with two horizontallyplaced studs 19 b, which receive the cop-tubes c c, on which are wound, as shown, the thread masses d d, the mass 01 being represented as cylindrical, while the mass 01' is conical; but as to the thread masses the particular external contour thereof may be of any suitable configuration, so long as the thread be drawn off without rotating the thread mass.

The standard A, as represented, also, for sake of compactness, supports a rod 6, on'the outer end of which is mounted an arm f, having suitable hollow guide-eyes g g for the reception of like hollow hubs 12 at the upper ends of delivery-arms h h, having eyes 2 3, respectively, the delivery-arms being held in adjusted position by suitable set-screws 4 5, the movement of the said delivery-arms about their pivoted centers enabling the eyes 2 3 to be located at any desired point according to the direction it is desired the thread to take to the particular part of the sewing-machine which is to take the threads.

Fig. 4 shows the manner of fitting the hubs of the delivery-arms into the guide-eyes. The tubular hub of each delivery-arm is provided near its end with an annular groove 22, (see Fig. 4,) in which enters the point of a screw, as 4 or 5, the hole in the hub being shown in Fig. 4 as countersunk at each end. The hole in the arm g entered by the hub of the arm h or h is left conical, as when a Morse drill is used to bore the hole. The thread in each case is led from the thread mass to and through the guide-eyes g or g, and thence to and through the eye 2 or 3 in the delivery-arm to the part of the sewing-machine to take it, the thread being drawn off the wound mass without rotating the latter or the studs. The arm f is shown as adjustable as to its position on the rod e by a set-screw e.

If the standard should be set so that the guide-eyes could point directly to the tension device of the sewing-machine, then the delivery-eyes could be omitted; but it is seldom convenient to do this when the standard has two wound masses of thread.

Having described our invention, what is herein claimed as new, and desired to be secured by Letters Patent, is-

1. In a thread-controlling apparatus, a support for a wound mass of thread that it may be unwound as described, combined with a fixed guide-eye substantially in line with the axis of and to receive the thread direct from the mass of thread and a delivery-eye from which the thread is delivered, said deliveryeye being adjustable about or with relation to the guide-eye as a center, and means for holding it in adjusted position, substantially as described.

2. The standard A, having a horizontallyarranged stud to support a wound mass of thread, and an arm having a hollow guideeye substantially in line with and opposite to said stud, combined with a delivery-arm having a delivery-eye and having a tubular hub co-operating with the hollow guide-eye and provided with a thread-passage adjacent to and in continuance of the thread-passage of the said hollow guide-eye, substantially as described.

3. In a thread-controlling, apparatus a support for a wound mass of thread that it may be unwound, as described, and an armf, combined with a hollow guide-eye carried by said arm f, and a delivery-arm having a hollow hub to enter the said guide-eye, the deliveryarm being adjustable in the arc of a circle with relation to the arm f, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

NATHAN IIOVE. AUGUSTUS L. BUSH. \Vitnesses:

A. E. HARRIS, E. 13., BANoRoFtr.

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