US1126158A - Thread-stand. - Google Patents

Description

5,. W. DARLEY, JR.

THREAD STAND.

APPLIOATION FILED MARrZB, 1910.

Patented Jan. 26, 1915.

THE NORRIS PETERS C0. PfldTD-LITHQ, WASHINGTON, D C.

JOHN W. DARLEY, JR., 013 BALTIMORE, MARYLAND.

THREAD-STAND.

Specification of Letters Patent.

Patented J an. 26, 1915..

Application filed March 23, 1910. Serial No. 551,110.

To all whom it may concern:

Be it known that 1, JOHN W. DARLEY, J r., a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Thread-gtands; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in thread stands, and the object of my invention is to provide a simple and effective device of this character, adapted to hold a spool of thread so that the thread may be freely fed, and to prevent it from overrunning and tangling, if a sudden pull or jerk is given to the thread.

This invention may be used in connection with any form of a sewing machine, or in fact, with any machine in which it is desired to feed a cord or wire from a spool.

With the objects stated in view, my invention consists in the construction and combinations of parts as hereinafter described and claimed.

In the accompanying drawings-Figure 1 is a side view showing part of a sewing machine with my invention applied thereto. Fig. 2 is a side view, partly in section, of my improved thread guide. Fig. 3 is a top plan view of the same. Fig. i is a perspective view of the retaining cap, and Fig. 5 is a side view of the threading device.

1 represents a sewing machine with my invention arranged in proximity thereto, and adapted to deliver a thread to said machine.

The thread stand consists of a heavy base 2, preferably of metal, provided with an enlargement 3, which is perforated for the reception of an upright rod 4, fastened in said projection by any suitable means, such as a screw 5. ()n the rod 4 is mounted a sliding sleeve 6, which may be fixed in any desired position upon said rod by means of the set screw 7. Connected to the sleeve 6 is an arm 8, forked at its upper end.

9 represents another sleeve, mounted on the rod 4, on which rod it may be adjusted and fixed by means of the screw 10. The sleeve 9 has made integral with it an arm 10, the outer end of which terminates in a ring 11, in which is mounted a ring 12 of leather, rubber, or similar material.

13 represents a pin projecting upwardly from the center of the stand or base 2, on which the spool of thread 14- is carried.

15 represents a weighty cap, provided with a central aperture 16, and having a downwardly projecting edge 17 adapted to rest on the top of the spool. This cap is adapted to be used especially if the upper end of the spool is nicked or broken, and it may be omitted, if desired. The screws 7 and 10 engage a groove 27, preventing the sleeves 6 and 9 from rotating.

18 represents a long tube, which is supported on the outer end of the arm 8 and projects downwardly through the ring 11, the lower end being flared as shown at 19. On the upper end of the tube 18 are mounted two rings 20 and 21, one adapted to fit over and the other under the forked end of the arm 8. These rings are secured to said tube in any suitable way. After the upper end of the tube has been supported in the forked end of the arm 8, a pin 23 is placed through the ends of said arm to keep the tube from being disengaged therefrom. The construction shown permits a substantially universal movement of the tube 18 on the supporting arm 8, and it is obvious that various other devices could be used for the same purpose.

The threading device consists of a long wire 24-, with a book 25 at its lower end and a loop 26 at its upper end. This wire is, of course. slightly longer than the tube 18, and the threading operation is obvious.

The operation is as follows z-Tlie thread being passed through the tube 18 by means of the threading device, is led off to a sewing machine. or wherever it is to be used. As the thread is pulled through the tube 18, the latter, under ordinary conditions, swings around with its lower end resting against the top of the spool or against the cap 15, if the latter is usedas indicated in dotted lines in Fig. 2. The tube 18, as will be seen, substantially generates a cone in its movement. Under ordinary conditions, when the thread is being pulled through the tube 18 slowly. the lower part of the tube 18 rests against the top of the spool or against the cap 15, and enough friction is generated to prevent the tube 18 from moving too rapidly. If a sudden pull is given to the thread. the lower part of the tube 18 flies outwardly by centrifugal force. and rests against the leather ring 12, which furnishes friction enough to prevent the too rapid rotation of the tube, the spool of thread remaining stationary. By long continued trials, 1 have established the fact that no matter how quick or sudden the pull, the thread never overruns to any appreciable extent, while in all of the thread stands or supports known to me, a sudden strong pull will cause the thread to unwind in far too great a quantity from the spool, inevitably resulting in tangling and breaking of the thread.

Having thus described my invention, I claim 1. In a thread stand, the combination of a movable thread guide adapted to move around one end of a spool of thread, said thread guide being freely suspended, and frictional means acting against the centrifugal force of the thread guide for retarding the movement of said guide if a sudden pull is given to the thread, substantially as described.

2. in a thread stand, the combination of a support for the spool of thread, a freely movable thread guide, and a friction ring acting against the centrifugal force of the thread guide for preventing the overrunning of the movement of the thread guide if a sudden pull is given to the thread, substantially as described.

3. In a thread stand, the combination of a support for a spool of thread, a freely movable thread guide, through which the thread from said spool passes, one end of said thread guide being adapted to swing around the end of the spool of thread, and means surrounding said thread guide for frictionally retarding by centrifugal force the same from overrunning in its movement, substantially as described.

4. In a thread stand, the combination of a support for a spool of thread, a freely movable thread guide arranged with one end adapted to swing around said spool of thread, and a fixed annular member engaging with said guide and adapted to pre vent the same from overrunning, substantially as described.

5. In a thread stand, the combination of a base provided with means for supporting a spool of thread, a hollow thread guide, a rod attached to said base, an arm attached to said rod and freely supporting the upper end of said thread guide, the lower end of said guide being free to move in a circle around the spool of thread, and a ring supported by said rod, against the interior of which said thread guide is adapted to bear, by centrifugal force, if a sudden pull is given to the thread, substantially as described.

6. In a thread stand, the combination of a base having thereon means for supporting a spool of thread, a rod extending upwardly from said base, an arm movably supported on said rod and provided with a forked end, a hollow thread guide supported by said arm at its upper end, and having its lower end free to move in a circle, and a ring within which said thread guide moves, substantially as described.

7. In a thread stand, the combination of a base having means thereon for supporting a spool of thread, a spool of thread mounted thereon, a hollow thread guide, a rod projecting upwardly from said base, an arm adjustably secured to said rod, said arm having a forked end and freely supporting the upper end of said thread guide, and a ring within which said thread guide is adapted to swing, said ring being movably supported on said rod and having on its interior suitable friction-producing material, substantially as described.

8. In a thread stand, the combination of a base provided with an upwardly extending central pin, a spool of thread mounted on said base, a cap adapted to be placed on said spool of thread, a rod attached to said base and extending upwardly, an arm adjustably supported on said rod and having a forked end, a hollow thread guide freely supported by said arm, and a ring provided with leather on its interior, said ring being adjustably supported on said rod, substantially as described.

In testimony whereof, I aflix my signature, in presence of two witnesses.

JOHN W. DARLEY, JR.

\Vitnesses:

J. S. GIUSTA, GEO. B. PITTS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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