US1987777A - Thread manipulating device - Google Patents

Description

Jan, 15, 1- J. H. JEWETT, JR 1,987,777

THREAD MANI PULAT ING DEVI CE Filed Dec. 3, 1931 lflll mun-um: F! ii; I

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Patented Jan. 15, 1935 PATENT OFFICE THREAD MANIPULATING DEVICE John H. Jewett,

Jr., Lyons, N. Y.

Application December-3, 1931, Serial No. 578,647

10 Claims.

This invention relates to a device for the manipulation of filament, thread, yarn, and analogous material.

In the manipulation of filament or strands of material in the production of threadand yarn it is necessary to employ means to cause the material to proceed at an even rate ofspeed and under an even tension. It is old in the art to use a roller for this purpose. Several turns of the thread are taken about the roller and the roller is operated at any desired rate of speed.

The use of such a roller is unsatisfactory in that breaks occur in the material by reason of the turns on the roller overlapping. This tendency to break is aggravated by conditions of humidity and temperature. When a break occurs in the material -it results in a defectin the thread or yarn and a loss of time in repairing the break, which results in an increased cost of production. In addition to this when a break occurs a quantity of material will be wound on the roller before the machine can be stopped, which material must be cut off and wasted. Therefore, the specific object of this invention is to provide a device which will move the material at an even rate of speed and under an even tension, and which will maintain the turns of material in positive spaced relation so as to prevent overlapping.

A further object of the invention is to provide such a device which will automatically cause the material to assume and maintain definite spacing even though the operator of the machine has improperly placed the material on the device.

A further object of the invention is to provide a device wherein the material will be let on at one end, advanced on the device and let off at the opposite end.

Afurther object of the invention is to provide a construction which will be simple and inexpensive to manufacture and which will be applied to any existing machine.

The objects of the invention are accomplished by using a spiral guide and means to advance the material in the guide. In the accompanying drawings and specification the invention is described as applied to a feed for a thread-spinning or twisting machine. However, the invention is not limited to spinning as it may be used as a let-off or control on any machine operating on strands of material.

The invention consists of the construction, combination and arrangement of parts as herein illustrated, described and claimed.

In the accompanying drawing, forming part hereof, is illustrated one form of embodiment of the invention, in which drawing similar refer ence characters designate corresponding parts, and in which: i i

Figure 1 is a diagrammatic plan View;

Figure 2 is a front elevation; and,

Figure 3 is an end elevation of the right-hand end of Figure 2. i

Referring to the drawing 4 designates a plurality of bobbins on which are wound-single threads 5. These threads are fed through eyelets 6 which communicate with means to stop the spinning machine if a thread breaks. The single threads 5 are brought together through an eyelet '7. The eyelet '7 is carried by a frame 8 which is provided with an extension 9 and a sleeve 10 so that the frame 8 may be adjustably carried on a rod 11 connected to the spinning machine. A set-screw 12 is provided so that the frame 8 may be removably held in position.

The frame 8 is provided with a bushing 13 through which is disposed ashaft 14. The shaft 14 is connected to the pinion 15 which operates the same.- 'Carriedby the shaft 14 is a pair of arms or thread supporting bars 16. Disposed around the shaft 14 and within the bars 16 is a spiral member 17 having one end 18 fixed to the frame 8. The spiral member 17 is held stationary while the shaft 14 rotates through the spiral member 1'7 and revolves the arms 16 about the spiral 1'7.

When the several strands 5 are brought together through the eyelet '7 they are held closely together but are not twisted. The twisting is done by the spinning bobbin after the threads pass through the eyelet 19 carried by the lower part of the frame 8. The spinning of the bobbin 20 causes the twists to extend to the threads between the bobbin 20 and the eyelet 19. The threads 5, before being passed through the eyelet 19 and to the bobbin 20 are passed around the arms 16 for several turns, each turn lying within one turn of the spiral 17.

In the use of the device it may occur that the operator of the machine will not place the turns of thread evenly in the spiral member 1'7. For instance, in placing the thread on the bar 16 several turns may be taken in a single groove of the spiral 1'7. However, as the shaft 14 is rotated and the arms 16 revolve the turns will be automatically spaced by the spiral 1'7. On the first revolution the first turn in any groove of the spiral 1'7 will be forced into the next groove. 0n the second revolution the next turn will be moved on the spiral 1'7. In this way, it is not essential that the thread be accurately placed in the recesses of the spiral member 17. It is not necessary that there be one turn of thread for each recess in the spiral 17. It may be that the spiral 17 will be provided with a large number of turns lying close together. It is necessary to take only sufficient turns of thread around the arms 16 so that the thread may be moved by movement of the arms 16 without slippage.

A second pinion 21 is provided to operate the pinion 15. The pinion 21 is connected to the operating mechanism of the spinning machine whichis not shown. It will be understood that the speed of the pinion 21 may be controlled with relation to the speed of the bobbin'20. In this way the rate of travel of the thread may becontrolled. At the same time, the use of this construction tends to eliminate slippage so that there will be little or no variation in the number of turns per inch produced on the spinning bobbin 20. .Itzis to be noted that the invention is not limited to the specific construction illustrated. Other forms. of construction may be used which embody the basic principle of the spiral guide and means to move material in the guide. For instance, the arms 16 might be connected directly to the pinion, 15 and the shaft 14 eliminated, without departing from the spirit of the invention.

Having thus fully described the invention what I is'claimed as new and desired to be secured by Letters Patent of the United States is:

a 1. A thread spreading mechanism comprising a fixed spiral guide member disposed transversely of the line of movement of the thread and a plurality of arms adapted to revolve about said spiral members 2. A thread spreading machanism comprising a fixed spiralguide member disposed transversely of the line of movement of the thread and a plurality of arms adapted to revolve about said spiral member, said arms being adapted to advance a thread.

3. A thread spreading mechanism comprising a fixed spiral guide member and a plurality of arms adapted to revolve about said spiral member, said arms being adapted to advance a thread and said spiral being adapted to prevent the thread from overlapping.

4. A thread spreading mechanism comprising a plurality of arms adapted to carry a plurality of turns of thread and a spiral member to maintain the turns of thread in spaced relation.

5. A thread spreading mechanism comprising a plurality of movable arms adapted to carry a plurality of turns of thread and a spiral member to maintain the turns of thread in spaced relation.

6. A thread spreading mechanism comprising a plurality of movable arms adapted to carry a plurality of turns of thread and a stationary spiral member to maintain the turns of thread in spaced relation.

'7. In combination with a spinning machine a feed device comprising a frame, a shaft carried by the frame, a spiral guide disposed around the shaft transversely of the line of movement of a thread and a plurality of arms disposed around the spiral guide and carried by the shaft.

8. In combination with a spinning machine a feed device comprising a frame, a shaft car ried by the frame, a spiral guide disposed around the shaft, a plurality of arms disposed around the spiral and carried by the shaft, said arms adapted to carry turns of thread and said spiral adapted to maintain the turns in spaced relation.

9. A thread spreading device comprising a fixed spiral member disposed transversely of the line of movement of the thread and a plurality of arms movable around the spiral member to advance a thread longitudinally of the spiral.

10. A thread feeding device comprising a spiral member disposed transversely of the line of movement of the thread and a plurality of arms movable around the spiral member to advance a thread longitudinally of the spiral.

JOHN H. JEWETT, JR.

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