US245677A - Oscar e - Google Patents

Description

(No Model.)

0. 3. WAIT. BOBBIN SUPPORTER FOR SPOOLING MACHINES. No. 245,677. F Patented Aug. 16,1881.

WIl'FlEEEES. lr x sr hzr 'VM 6' W46 7 V WW UNITED STATES PATENT OFFICE.

OSCAR E. WAIT, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEORGE A. DRAPER, OF SAME PLACE.

BOBBlN-SUPPORTER FOR SPOOLING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 245,677, dated August 16, 1881,

Application filed April 29, 1881. (No model.)

To all whom it may concern Be it known that I, OSGARENVAIT, of Hopedale,Worcestercoun ty, State ofMassachusett s, have invented an Improvement in Bobbin-Supporters for Spoofing-Machines, of which the following description, in connection with the accompanying drawings, is a specification.

This invention in bobbin-supporters is an improvement on the class of supporters described in United States Patent No. 159,053,

to which reference may be had.

The object of my invention is to enable the bobbin to be held in a more satisfactory manner and lessen the liability of breaking the yarn or thread while being drawn therefrom and wound on a spool revolved by the spindle of a spoofing-machine of usual construction.

In this my invention the trough is carried up at that side of the bobbin at which the yarn is drawn from it, and the bobbin is held pressed down in the trough by aweighted arm,which, acting against the yarn on the bobbin, prevents the bobbin rotating too freely. The bobbin may be kept from. being lifted vertically 2 5 from the trough by means of guards or fingers connected therewith at its end, the said guards being extended over and across the upper side of the bobbin at its opposite ends, as shown in the drawings. The tension -regulating arm 0 which bears against the yarn on the bobbin, and which may be provided with an adjustable weight,is connected with a short shaft pivoted in the overhanging head of the support. This shaft has connected with it a friction yarn- 3 5 guide, across the under portion of which is drawn the yarn, extended between the bobbin and spindle, so that on the occurrence of a knot orbunch in theyarn on thebobbin (which, if the weight or pressure of the tension -regulating 4o arm upon the yarn on the bobbin was not lessened,would break the yarn) operates through the increased strain then exerted on the yarn between the bobbin and spool to turn the guide and shaft and temporarily lift or remove the 4 5 tension-regulating arm from contact with the yarn on the bobbin, such movement also decreasing the friction of the yarn 011 the yarnguide and on the edge of the trough.

Figure 1 represents in side elevation abobbin-supporter containing my improvements; Fig. 2, a front-end view thereof; and Fig. 3 is a view of the top of the trough, showing the guards extended across the bobbin.

The overhanging head a, provided with an opening to receive the rod upon which the bob- 5 bin-support is secured by the set-screw a, is of usual form. The trough b, secured to an ear, c of the head a by bolt 1), has its front or left-hand side, 2, (see Fig. 2,) carried up to a point opposite or above the center line of the bobbin 0 shown in the said trough, and to that side of the upwardlyextended trough, near its ends, I may, if desired, add guards or fingers 3 4, which extend over and across the bobbin, as shown clearly in Fig. 3, the said guards acting to assist the elevated side of the trough in preventing the bobbin from being lifted by the yarn or fromjumping so high from the trough during the rapid rotation of the bobbin as to dislodge the bobbin from the trough.

The tension-regulating arm 01, made as a wire-loop, is connected at its ends with the loosely-pivoted or journaled shaft 0. This arm d has upon it a weight,f, made adjustable by means of the screwsf The arm at is pressed against the yarn on the bobbin and crowds the bobbin toward the high side of the trough. The weightfis suflicient to hold the arm d against the-yarn on the bobbin with sufficient force to exert the proper amount of tension thereon and enable the yarn to be properly wound on the spool. A pair of weighted arms for this purpose are old in this class of machine; but I have discovered,when these arms press on the yarn of the bobbin to hold it and keep the yarn at its best tension, that the occurrence of a bunch or other enlargement on the yarn of the bobbin coming against the weighted arms, or imperfection in the winding 0 of the yarn on the bobbin by causing an undue tension, will break the yarn. I have also discovered that as the yarn is strained more tightly by obstructions or imperfections such as referred to, the strain so exerted on the yarn between its regular or proper amount of strain or tension and its breaking strain or tension may be expended in relieving the friction of the yarn on the guidef and the pressure of the arm (1 on the yarn of the bobbin. This I have accomplished by combining withthe shaft 6 the above-described guide, Fig. 1, under which the yarn is extended, and against which it rests between the bobbin and the usual spool (not shown) of the spooling-machine. The strain on the single strand of yarn, before it is exerted to such an extent as to break it, is suffioient to overcome the pressure of the weight fand arm and turn the shaft 6 far enough to remove the arm 01 from contact with the yarn and release the bobbin,whioh thus turns freely until the yarn is sufficiently slack to again permit the arm 66 to drop in contact with the yarn on the bobbin, and also move the guide f backward and lessen the friction of the yarn on it and on the edge of the trough. In this way the tension on the yarn is kept steady and uniform, and breakage of yarn is obviated or reduced to the minimum.

I claim- 1. In a bobbin-support, the trough to hold the bobbin and the head and shaft, combined with the tension-regulating arm and. guide, arranged with relation to each other and the bobbin, as described, the tension-regulating arm at times bearing upon the yarn of the bobbin and at other times being lifted therefrom by the action of the yarn on the guide, when the tension-regulating arm releases the bobbin, substantially as described.

2. The trough b of the bobbin-supporter and the guards 3 4 extended across the bobbin, combined with the gravitatingor weighted tension-regulating arm d to press on the yarn of the bobbin and retain the bobbin in the trough under the said guards, substantially as described.

3. The trough to hold the bobbin, the head, and shaft, and the tension-regulating arm and guide, arranged with relation to each other, as described, combined with the adjustable weight f, the yarn-guide being adapted to decrease the friction on the yarn between the bobbin and spool when undue strain is put upon the yarn, substantially as described.

In testimony whereof lha-ve signed my name to this specification in the presence of two subscribing witnesses.

OSCAR E. WAIT.

Witnesses:

F. J. DUTCHER, GEO. A. DRAPER.

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