US1938586A - Cop and means for and method of producing same - Google Patents

Description

Dec. 12, 1933. P. T. GATELY El AL 1,938,586

COP AND MEANS FOR AND METHOD OF PRODUCING SAME Filed Aug. 16. 1928 3 Sheets-Sheet 1 I v NTOR BY W Dec. 12, 1933. p T. T Y m- AL 1,938,586

COP AND MEANS FOR AND METHOD OF PRODUCING SAME Filed Aug. 16, 1928 3 Sheets-Sheet 2 IN ENTOR BY 9. q

BYW I I fflM ATTORNEYS f lNVE Q Patented Dec. 12, 1933 UNITED STATES COP AND MEANS FOR AND METHOD OF PRODUCING SAME Peter Thomas GateLy and George Alfred Bowen, Willimantic, Conn., assignors to The American Thread Company, New York, N. Y., a corporation of New Jersey Application August 16,

12 Claims.

Our improvement relates to a new and improved cop and means for and method of producing the same, and has for its object to provide a new and improved cop with the other end of the thread fastened in a new and improved manner.

Heretofore cops have been made with a universal wind having a single depressed V-shaped surface pointing in the same direction as that in which the thread is wound thereon and the end of the thread has been secured by tucking it under one or more strands at the border of the V. The tucking is a manual operation, re quiring considerable dexterity and adding considerably to the cost of the cop. We'have discovered a way of winding and fastening the cop so that the end can be fastened without the manual act, thus avoiding the expense of the manual operation and producing cops in which the fastenings are more uniform and satisfactory. The method can be carried out and the fastened cops produced while upon the machine which winds the cop.

The following is a description of a cop embodying our invention and the means and method by which it is producedreference being had to the accompanying drawings, in which:

Figure 1 shows, partly in section and partly in side elevation, a mechanism embodying our new and improved cop producing means and carrying out our new and improved method;

Fig. 2 shows an end elevation of portions of the same with the end portion of the thread about to be secured, the same comprising a hook and a deflector;

Fig.3 is a front elevation of a plurality of such hooks and deflectors, and a plurality of cops in the positions shown in Fig. 2;

Fig. 4 is a detail view showing a single hook and deflector with the thread about to be deflected;

Fig. 5 shows a cop with the hook and deflector after the end portion of the thread has been drawn beneath a plurality of windings so as to be held thereby;

Fig. 6 is similar to Fig. 4 with the deflector omitted;

Fig. 7 shows the hook being disengaged from the fastened end portion of the loop. This figure shows the completed cop with its end fastened according to our invention; and

Fig. 8 is a plan view of the cop with the hook shownin section in conjunction with the deflector showing the relations of the parts as the hook 1928. Serial No. 299,888

is about to pass beneath the end-restraining strands.

Referring more particularly to the drawings, 2 is a frame in which is mounted a winding spindle 4 driven by a gear 6 which meshes with a gear 8 driving the shaft 10on which is mounted a cam 12 which oscillates the holder 14 of a traverse guide 16, the cam 12 being such that the traverse guide 16 makes one complete oscillation so as to return to its initial position at one end of its throw for each rotation of the shaft 10. 1818 are four cops of thread'having a tendency to turn its free end to theleft i. e. counterclockwise, wound upon the spindle 4. The gears 6 and 8 are so related as to make a V-wind of the type known as Universal except that the I depressed V-shaped portion of the wind points in the opposite direction to the direction in which the thread is wound instead of in the same direction as is customary. 20-20 are four hooks, one for each bobbin, mounted on a slide22 which moves within a guide 24, the guide being preferably inclined so as to move the slide in a direction substantially parallel to one of the edges 26 of the depressed V and towards the other side. The barb of each hook is on the side of the hook adjacent to the side of the recess toward which the hook moves downward, but somewhat rearwardly disposed as shown in Fig. 7. When the cop is of the proper size, the winding mechanism is stopped. The path of the hook, due to the guides 24, is suchthat when the slide 22 is depressed the point ofthe hookpasses between a. plurality of successively engaging strands 28 beginning with the strand bordering-the depressed V on the side toward which the hook points, until it reaches the position shown in Fig. 4. 30 is a thread deflector which then engages the the right until it is moved beyond the hook, as shown in Fig. 3, the hook then passing downward so that it is engaged by the thread and its barb lies below thethread.

When the hook is withdrawn the barb engages the thread and pulls the end portion in the form .thread near the wound mass and deflects it to i of a loop upward beneath the strands 28, as

In order to operate the slide 22 mechanically a cam drum 32 is provided which at the proper time is actuated by a worm gear 34. This cam drum carries two risers 36 and 38, the latter being of less height than the former. These risers act upon a frictionroller 40 carried by a slide 42 acted upon by the compression spring 44. This slide 42 is connected by an adjustable link 46 with a bell-crank lever 48 pivoted at 50 and connected by a link 52 to the slide 22. The drum 32 rotates in the direction shown by the arrow with the result that the slide 22 is given two movements of reciprocation, one succeeding the other, the first movement being of greater amplitude, than the second.

In winding a cop according to our invention the traverse guide 16 as usual contacts with the cop as it is being wound, and the winding spindle is operated so as to turn toward the guide, the movements of the spindle and guide being so timed that the V-shaped depression of the wind points in the opposite direction from the direction in which the thread is being wound. After the cops have reached such a size that the division between the winding bordering the V and the next preceding layer is in line with the path of the hook the winding spindle is stopped in any suitable manner and the traverse guide is retracted to the position shown in Fig. 2. During the winding period the slide 22 remains at rest. After thewinding operation has been stopped, and the traverse guide retracted the cam drum 32 is rotated by means of the worm gear 34 from the position shown in Fig. l, causing the hooks to move downward to the position shown in Fig. 2. As the hooks move downward they pass between windings adjacent to the depressed V and the windings of the next preceding layer coming out from beneath a plurality of windings, as shown in Fig. 2, on account of the curved periphery of the cop. After the hook has begun its movement and before it has reached its lowermost position (Fig. 5), the deflector 30 engages the thread between the cop and the retracted traverse guide and deflects it so that as the hook is further depressed it engages the barbed side of the hook above the barb, as shown in Figs. 2 and 3. The face of the riser 36 then permits the slide 42 to move to the left, resulting in the liftingof the hooks to the position shown in Fig. 5. The riser 38 then moves the slide 22' so as to carry the hook downward a shorter distance to the position shown in Fig. 7.

The thread of the cop has a slight tendency to twist its free end counter-clockwise so that, if severed, its forward end would tend to turn toward the right. On account of this tendency to turn, the loop which is formed by the hook tends to turn to the right, as shown in Fig. '7 and turns in that direction, when released by the hook, so that when the hook is depressed by the riser 38 so as to descend below the bight of the loop, the loop flips around toward the right and ofl of the barb to a position where it lies out of the path of the barb upon the return movement of the hook. The hook can, therefore, be returned to the position shown in Fig. 1 Without re-engaging the looped end portion of the thread.

7 In carrying out our invention in its preferred form, the recess V of the bobbin must point in the opposite direction from the direction in which the thread is wound, and the thread must have a slight tendency to twist so that its outer end tends to turn toward the end of the cop adjacent to and remote from the end overlying strands.

The thread is severed after it has been engaged by the hook and preferably after it has been drawn beneath a plurality of windings, as shown in Figs. 4 and 5. This severing may be performed by hand or by any suitable means.

The winding can be stopped in any suitable way when the bobbin has reached the proper size for the ending operation.

The cop produced is a Universal wind cop having the V shaped recess pointing in the opposite direction from that in which the thread is Wound thereon. The outer end portion of the thread has a loop passing under a plurality of strands bordering one side of the V shaped depression, and the thread has a twist tending to turn the free end of the thread adjacent to the peripheryof the cop toward the end of the cop remote from said plurality of strands so that the loop flips in the opposite direction, 1. e. toward the end of the cop adjacent to said plurality of strands. The direction in which the thread tends to twist determines the direction in which the loop will flip and thus determines on which sideof the V-snaped recess the end securing strands should lie.

As will be evident to those skilled in the art, our invention permits various modifications without departing from the spirit thereof or the scope of the appended claims.

What we claim is:

1. In an end fastening means, a hook having a lateral barb, a thread deflector below said hook and slanting upward to guide a thread beyond the point of said hook, and means for mov- H ing said hook and deflector lengthwise of the '110 axis or" said hook.

2. In an end fastening means, a hook having a lateral barb, a thread deflector below said hook and slanting upward to guide a thread beyond the point of said hook, means for moving said hook and deflector, a spindle for winding a cop, and guiding means inclined so as to cause said hook to move at an angle to the axis of said spindle. I M

3. In an end fastening means, a hook having a lateral barb, a thread deflector below said hook and slanting upward to guide a thread beyond the point of said hook, means for guiding said hook and deflector, and a spindle for winding a cop, said guiding means being inclined so as t0125 move said hook at an angle to the axis of said spindle, and means for adjusting the point of said hock toward and from the axis of said spindle. W

4. In an end fastening means, a hook having'lgo a lateral barb, a thread deflector below said hook and slanting upward to guide a thread beyond the point of said hook, means for guiding said hook and thread deflector, a spindle for winding a cop, said guiding means being inclined so as to cause said hook to move at an angle to the axis of said spindle, and means for imparting to said hook two movements of reciprocation in said guiding means, the second forward movement being of less amplitude than the first forward movement.

5. The method of forming a cop having a fastened outer end consisting in universally winding upon a spindle a cop having a V-shaped depression, passing a hook beneath a plurality of strands beginning with a strand bordering said depression and engaging the thread end portion adjacent to the cop and drawing said end portion under said strand to said Vshaped depression, and disengaging said end portion.

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6. The method of forming a cop having a fastened outer end consisting in universally winding upon a spindle a cop having a V-shaped depression, passing a hook beneath a plurality of strands beginning with a strand bordering said depression and engaging the thread end portion adjacent to the cop, drawing said end portion under said strands in the form of a loop and disengaging said hook from said loop.

7. The method of forming a cop having a fastened outer end consisting in universally winding a thread upon a spindle so as to form a cop having a depressed V, passing a hook over the space within said V and underneath a plurality of windings of the outer layer of said cop beginning with the winding bordering said V, deflecting the end portion of said thread to the barb carrying side of said hook, engaging said end portion of the thread by said hook at a point adjacent to said cop and drawing said end portion beneath said plurality of windings.

8. The method of forming a cop having a fastened outer end consisting in universally winding upon a spindle a thread having a tendency to turn so as to form a cop having a depressed V, passing a hook over the space within said V and underneath a plurality of windings of the outer layer of said cop beginning with the winding bordering the side of said V toward which the thread being wound tends to turn, deflecting the end portion of said thread to the barb carrying side of said hook, engaging said end portion of the thread by said hook at a point adjacent to said cop and drawing said end portion beneath said plurality of windings in the form of a loop tending to flip off said hook and moving said hook toward said windings so as to permit said loop to flip itself free from said hook.

9. The method of forming a cop having a fastened outer end consisting in universally winding upon a spindle a thread tending to turn so as to form a cop having a depressed V pointing opposite to the direction in which the thread is wound, passing a hook over the space within said V and underneath a plurality of windings of the outer layer of said cop beginning with the winding bordering the side of said V toward which said thread tends to turn, the barb of said hook being laterally disposed on the side adjacent to said side of said V, the thread having a twist in a direction away from said side, engaging the end portion of the thread adjacent to said cop and drawing said end portion in the form of a loop beneath said plurality of windings and disengaging said hook from said loop.

10. In a machine for winding thread in a Universal wound cop having a mandrel upon which the thread is wound, a thread guiding device associated with the mandrel, and means for rotating the mandrel to cause the thread to be wound thereon and for stopping the mandrel in a predetermined angular position at completion of the winding operation, the combination of a hook needle, means for advancing the needle beneath a plurality of strands beginning with a strand bordering a V-shaped depression in the cop with the end of the needle projecting beyond said strands, then retracting the needle from beneath said strands and then advancing the needle a distance towards said strands, and means for positioning a portion of the stretch of the thread extending between the cop and said thread guiding device into the path of the hook of the needle whereby during said retracting movement of the needle a loop of the thread is carried beneath said strands.

11. In a machine for winding thread in a Universal wound cop having a mandrel upon which the thread is wound, a thread guiding device associated with the mandrel, and means for rotating the mandrel to cause the thread to be wound thereon and for stopping the mandrel in a predetermined angular position at completion of the winding operation, the combination of a hook needle, means for advancing the needle beneath a plurality of strands beginning with a strand bordering a V-shaped depression in the cop with the end of the needle projecting beyond said strands, then retracting the needle from beneath said strands and then advancing the needle 2. distance towards said strands, and means for positioning a portion of the stretch of the thread extending between the cop and said thread guiding device into the path of the hook of the needle whereby during said retracting movement of the needle a loop of the thread is carried beneath said strands, and means for severing the thread between said loop and said thread guiding device.

12. A thread winding machine having, in combination, a rotating mandrel, a plurality of thread guiding devices associated with the mandrel whereby during the rotation of the mandrel the threads are universally wound simultaneously on the mandrel in separate cops with the cops arranged in end to end relation, means acting automatically to sever the several threads at the completion of the winding operation, and means acting automatically at the completion of the winding operation for fastening the outer ends of the

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