US239059A - Charles raymond - Google Patents

Description

(Model.)

.0. RAYMOND. Bobbin Wind-er.

No. 239,059. Patented Ma r-ch 2 2, 18 81.

N. PETERS, PHQTO UIHOGRAPNER, WASHINGTON. DV 6.

UNITED STATES PATENT OFFICE.

CHARLES RAYMOND, OF GUELPH, ONTARIO, CANADA.-

BOBBlN-WlND-ER.

SPECIFICATION forming part of Letters Patent No. 239,059, dated March 22, 1881. Application filed April 21, 18st. (ModeL) cation.

This invention has relation to improvements in bobbin-winders for sewing-machines of the class in which the thread is automatically guided to and fro on the bobbin for the purpose of laying the thread regularly.

In the accompanying drawings, Figures 1 and 2 are front and back views, respectively, of a bobbin-winder embodying my improvements. Fig. 3 is an endview Figs. 4, 5,and 6, details of drivingspindle and stationary bobbin-holding arm. Figs. 7 and 8 are general views in perspective, showing the application of the bobbin winder to a sewing-machine and the position of the thread.

A is the winder-frame, constructed of metal and provided with a long bearing, A, to receive the driving-spindle, a socket, A to receive the stationary bobbin -holder 0, and a curved thread-distributor, A all combined in asingle piece of metal, and so arranged that when placed on the machine it fronts toward the operator and the bobbin is fully exposed during the operation of winding. The driving-spindle is made in two. sections.

B is a horizontal stem, to which the drivingdisk b is attached and B, a sleeve, into the recess of which the end of the stem B passes, and, in connection with the spring B slot B and pin B, and the sleeve, forms a drivingspindle and bobbin-holder which is adjustable in length,and which is so arranged in its supporting-bearings A that the act of plaoin g the bobbin in position for winding pushes the driving-wheel into working connection with the hand-wheel of machine. Near its front end the sleeve B is reduced in diameter for a portion of its length corresponding to the horizontal movement of the spindle, in order that the oil of the hearing may not be carried forward into contact with and soil the thread.

D is the presser-bar, hinged in a recess, A, in the frame of the winder, and having a square heel, by which it can either be held against the bobbin or away from it by the force of the spring D, secured on the front of the winder-frame. This mode'of mounting the presser and presser-spring leaves the batik of the winder-frame clear of obstruction, and by means of the bearing-strips a a enables the thread to be carried freely behind the frame of winder in a suitable recess to the distributingcurve, and thence downwardly to the bobbin.

E is a lug fashioned on the base of the winder-frame to form a retaining-shoulder for the thread as it comes from the-machine tensionroll. The intersection of the edge of this lug with the bottom of the winder-frame forms the center from which the circle of the distributingcurve is struck, and in operation,therefore, as the thread travels to and fro on the distributing-curve, the length of thread from the lugshoulder to the edge of the distributing-curve at any portion of its stroke is equal, thus insuring the regular Winding of the thread on the bobbin, and enabling it to be automatically returned over itself in layers at each end of the bobbin without difficulty and with certainty.

The winder is constructed and adapted to utilize the tension arrangement of the machine proper Without providing any special tensionspring or other device on the bobbin, thus saving expense, complication of parts, and

simplifying the threading of the winder.

As shown in Figs. 7 and 8, the thread-tension, both for the machine and winder, is provided in the tension-roll F, which is common to both. Thus the thread need not be taken out of the tension-roll in changing from needle to bobbin, and inversely from bobbin to needle. Another point of advantage is the ease and simplicity of the operation of threading the winder, there being no small holes, grooves, or guides. The thread is simply passed behind the frame of the winder, over the distributing-curve, direct to the bobbin, and, from the fact of the presser-spring being on the front of the frame, there is no obstruction to the passage of the thread or its movement to and fro on the distributing-curve.

I claim as my invention- 1. In bobbin-winders, the thread-distributing curve and thread-retaining lug, placed, respectively, above and below the bobbin, in combination with a winder frame constructed to be attached to the arm of a sewing-machine, and having bearing-strips to form a recess, to permit of the passage of the thread at the back of the Winder-frame, and between it and the arm to which it is attached, substantially as shown and described.

2. The combination of a frame, A, the fixed support 0 for the bobbin, and a sliding revolving support, made in two sections, B B,

connected to revolve together, and pressed in bin, whereby the insertion of the bobbin will force the disk against the wheel of the sewinglnaehinc, substantially as and for the purpose specified.

3. The combination of the frame A, fixed support 0, slotted sleeve B, and spring B with the spindle B, provided with disk I), and pin 13, whereby the insertion of the bobbin will force the disk against the wheel of the machine, substantially as described, and for the purpose specified.

CHAS. RAYMOND.

Witnesses:

HUGH A. STEWART, A110. H. lVIACDONALD.

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