US691408A - Thread-guiding attachment for sewing-machines. - Google Patents

Description

N0. 69I.408. Patented Ian. 2|, I902.

' A G. REINHOLD.

THREAD GUIDING ATTACHMENT FOB SEWING MACHINES.

(Application filed Apr. 8, 1901.

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UNITED STATES PAT NT Fries.

CHARLES REINHOLD, OF NlilW YORK, N. Y., ASSIGNOR OF ONE-HALF TO HENRY MULLER, OF NEW YORK, N. Y.

THREAD-GUIDING ATTACHMENT FOR SEWING- MACHINES.

. V SPECIFICATION forming part of Letters Patent N 0. 691,408, dated January 21, 1902. I Application filed April 6, 1901. Serial No. 54,635. (No model.)

To all whom it may concern;

Be it known that I, CHARLES REINHOLD, a citizen of the United States, residing in New York, borough of Manhattan, in the State of New York, have invented certain new and useful Improvements in Thread-Guiding Attachments for Sewing-Machines, of which the following is a specification.

This invention relates to an improved thread-guiding attachment for sewing-machines by which the annoying winding of the thread around the spindle .is obviated and a very effective thread-guidin g device obtained by which the required quantity of thread is supplied to the'needle at whatever speed the sewing-machine is run.

My invention consists of certain features of construction to be hereinafter particularly described and then pointed out in the claim.

In the accompanying drawings, Figure 1 represents a side elevation of my improved thread-guiding attachment for sewing-machines. Fig. 2 is a horizontal section of the same on line 2 2, Fig.1. Fig. 3 is a detail side elevation of the rotary thread-guide, showing also an end view of the spool. Fig. 4 is a vertical transverse section on line 4 4, Fig. 1. Fig. 5 is an enlarged vertical transverse section on line 5 5, Fig. l; and Fig. 6 is a detail of the connection of the auxiliary spool-supporting arm with the bracket of the attachment.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the arm of a sewing-machine of any approved construction. On the arm Ais supported an upright spindle B, on which is mounted a vertically-adjustable bracket 0, said bracket being attached to the spindle B by means of a clamping-screw b. The bracket 0 is provided with a horizontal socket d, in which is inserted a horizontal spindle D, said spindle being retained in the bracket by means of a spring-strip D, that is attached to one side of the bracket 0 and bent inwardly through an opening (1 in the front of the same, so as to engage a recess 0 in the end of the spindle D, by which the same is locked in position in the socket d, said recess corresponding to the width of the inner end of the spring, whereby the spindle D is prevented from turning on its axis in the socket d. This connection of the horizontal spindle D with the bracket is clearly shown in detail in Figs. 2 and 5. The spring D,that is bent around the bracket 0, is provided with a'handle D so that it can when it is desired to remove the spindle and the spool E from the bracket. The spindle D is provided with a slightlybent longitudinal friction -spring 3, Figs. 2 and 4, that is attached at one end in a longitudinal groove 8 in the spindle, said spring 3 serving to hold the spool in position on the spindle and prevent it frpm freely rotating thereon. r

To the outer end of the horizontal spindle D is applied a flat arm F, which turns freely on the outer end of the said spindle and which is separated from the spool E by a washerf, interposed between the arm and the spool, so as to prevent any frictional contact between the arm and the spool. The rotating arm F is provided at each of its outer ends with a slitted eye f for permitting the insertion of the thread from the spool, which is then passed through an eye f at the center of the arm F and from the same through to the needle. The eyes f f lie in approximately the same plane. The arm F rotates freelyaround the spool D by reason of the tension or pull of the thread, so as to take up the thread from the spool, said arm following in its rotation the windings of the thread on the spool, so thatafree and uninterrupted supply of thread to the needle is obtained whether the same is run at slow or quick speed, the rotating arm following with a corresponding speed and unwinding the thread from the spool as required thereby. By thus unwinding the thread by the needle of the machine all winding of the loose thread on the spindle and the breaking of the thread and interruption of themotion of the sewing-machine is entirely dispensed with and a very reliable thread-guiding device for sewing-machines obtained,

The bracket 0 is provided with an up wardly-extending portion C, which serves as a support for a third angularly-bent downwardly-extending spindle G, the upper bent means of the rotating arm and feeding it to be readily withdrawn from the spindle D the necessary shuttle-spools when they are wound up by the machine in the usual manner. The spindle G canbe turned into horizontal position, as shown in dotted. line in Fig. 6, for removing the empty spool and.

placing a full spool on the same, the bent upper end of the spindle turning in a recess g in the bracket 0, as shown in dotted lines in Fig. 6. This auxiliary spindle G forms a Very useful accessory to the thread-guidin g device,

as it always furnishes a ready supply of thread for the shuttle-spools without having to use the same spindle which was used heretofore for supplying the needle-thread.

Having thus described my invention, '1 claim as new and desire to secure by Letters Patent- A thread-guiding attachment for sewingmachines, consisting of a bracket suitably attached to the arm of the sewing-machine, a spindle, said bracket being provided with a horizontal socket for receiving said spindle, a spring locking device arranged on the bracket, said spindle being constructed with a recess receiving said locking device and having a longitudinal groove, a flat spring fixed in said groove so as to form means for retaining the spool friction-tight on the spindle, a rotary thread-guide applied to the outer end of the spindle, said thread-guide being provided with a thread-eye at each of its outer ends and also at itscenter, and a washer interposed between the thread-guide and the spool, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

CHARLES REINHOLD.

Witnesses:

PAUL GOEPEL, GEORGE GEIBEL.

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