US1327022A - Tension for spoolers - Google Patents

Description

C. O. CARTER.

TENSlON FOR SPOOLERS.

APPLICATION FILED APR.8. l9l8.

1,327,022. Patented Ja11.6,1920.

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UNITED STATES PATENT OFFICE.

CHARLIE O. CARTER, OF ANDERSON, MASSACHUSETTS, ASSIGNOR TO DRAPER CORPO- BATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

TENSION FOR S'POOLERS.

Specification of Letters Patent.

Patented Jan. 6, 1920.

Application filed April 8, 1918. Serial No. 227,160.

To all whom it may concern:

Be it known that I, CHARLIE O. CARTER, a citizen of the United States, and resident of Anderson, county of Anderson, State of Massachusetts, have invented an Improvement in Tensions for Spoolers, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in yarn winding machines and the purpose thereof is to provide a novel means for maintaining a suitable tension upon the strand of yarn running from the yarn sup plying means to the rotatable yarn receiving means which will be simple in construction, effective in operation and free from the necessity of attention and repair.

A further object of the invention is to provide a device of the character described which may be" readily adjusted to impose more or less tension upon the running strand and which will take out or prevent the formation of knots or kinks in the running strand.

More specifically the object of the invention is to provide a tension device for yarn winding machines in which a weight is partially supported by the running strand of yarn and partially by an extraneous means which may be adjusted to positions in which the weight will be supported to a greater or less extent upon the running strand of yarn and in which the frictional engagement between the weight and said supporting means may be also varied.

A further object of the invention is to provide a tension device of the character specified in which the running strand of yarn will be engaged frictionally between the base of the weight and the supporting surface.

A further object of the invention is to provide a device of the character described in which different sizes of weights may be used in accordance with the conditions under which the device is employed.

, Other objects and features of the invention will more fully appear from the following description and the accompanying drawings and will be pointed out in the annexed claims.

In the drawings,

Figurelis a transverse'sectional View of a suflicient portion of a spooler to illustrate the application of the present invention,

Fig. 2 is a detail side elevation of a preferred form of tension device embodying my invention showing the same attached to a supporting rod,

Fig. 3 is a plan view of the same, and,

Figs. l and 5 are detailviews of weights of different sizes which may be used in the manner hereinafter described.

The yarn winding machine illustrated in the accompanying drawings may be a spooler of the usual type comprising a frame 1 supporting a series of spool carriers 2 for spools '3, the spool carriers being driven by whirls l through the medium of belts passing around the rotating drum 5. The traverse of yarn upon the spools is effected through the usual thread guides 6 carried by traverse rods 7 reciprocated by rocker arms 8 which are oscillated by the yoke 9 in the usual manner;

The yarn supplying means illustrated herein is in the form of a bobbin or cop 10 mounted upon a spindle 11 which is carried by a stand 12' which is adjustably secured upon the rod 13 which extends longitudinally of the frame. Arms or brackets 1e extending from the frame preferably are provided to support a rod 15 which acts as a guide to cause the yarn to be pulled from the yarn supplying bobbin or cop substantially axially thereof.

The strand of yarn 16 runs from the bobbin around the rod 15, thence through the tension device forming the subject of my present invention to the yarn guide 6 and from it to the spool, the yarn guiding means being raised and lowered in the usual manner to provide for the traverse of the yarn upon the spool or other yarn mass which is being wound.

Where the yarn is supplied from a carrier having a weft or filling wind, which comprises a succession'of yarn spirals piled up upon one another, a great irregularity of delivery occurs during the unwinding of the yarn by reason of the throwing off of spirals of different sizes and the present tension device is particularly adapted to maintain a uniform tension upon the yarn as it is wound upon the spool irrespective of the manner in which the yarn is delivered from the supplying means. The present tension device also operates effectively to remove weight.

kinks from the running strand as well as to prevent the formation of kinks due to the uneven unwinding of the yarn from the yarn supply. Furthermore the tension de vice disclosed herein is adapted to impose a uniform tension upon the yarn which is not effected by the changes in the speed of the yarn caused by the building up of the winding upon the spool.

The preferred form of tension device which is illustrated herein comprises a weight which engages the running strand of yarn in such a manner that it is partially supported thereby and partially supported by other means which may be adjusted so as to support the weight to a greater or less degree. The device is also so constructed that more or less friction will be applied to the running strand of yarn as it passes between the weight and the supporting member.

Thetension device which is illustrated in Fig. 1 as applied to a spooler and in Figs. 2 to 5 in detail, comprises a plate 17 having a body portion substantially rectangular in form provided with an extension 18 having an aperture 19 therethrough to receive a bolt or screw 20 for securing the same to a suitable support.

As illustrated herein the plate 17 is secured by the screw or bolt 20 to the extension 21 of the upper half of a split collar 22 which embraces the traverse rod 7, the lower half of said split collar having an extension 23 adapted also to be engaged by the screw 20 so that the screw 20 serves the double purpose of clamping the split collar upon the lifter rod and of securing the plate 17 thereto. v

. The body portionof the plate 17 is preferably offset from the plane of the extension 18 so that the surface 24- thereof is inclined downwardly from the horizontal. The rectangular body portion of the plate 17 is provided with aslot 25 which preferably extends diagonally of said body portion and the upper portion of said body is cut away to form the yarn guide 26. A weight 27 preferably in the form of a relatively thin disk rests upon the inclined surface 24 of the'plate 17. The disk is provided with a central stud 28 which extends downwardly through the slot 25 and is provided at its lower end with a nut 29 which preferably is located at a considerable distance from the plate 17 to permit free movement of the The periphery of the disk or weight is provided with an upwardly beveled or curved surface 30.

When the tension device is supported in operative position upon the frame of the windingmachine the weight tends to slide dawn the inclined supporting surface until the stud28 rests "atthe lower end of the sieves.

rnahee erauen er fih lliaelline the ning strand is carried through the guiding recess 26 downwardly beneath the stem 28 of the weight 27 and thence upwardly across the surface 24-, still beneath the Weight, to the guiding means.

As the yarn is drawn through this tension device by the rotating spool the running strand draws the Weight upwardly in the general, direction of the movement of the running strand as illustrated in Fig. 3 and the engagement of therunning strand with the stem 29 of the weight tends to rotate the same. The tension applied to the running strand of yarn therefore, is effected, first, by the'partial supporting of the weight,- sec- 0nd, by the frictional resistance to the movement of the weight upon its supporting surface, third, the resistance against the rotation of the weight, and fourth, the frictional resistance caused by the clamping of the yarn between the weight and the sup porting surface.

By adjusting the inclination of the surface 24: of the plate 17 relatively to the horizontal the amount of weight imposed upon the running strand may be varied at will. By pivotally adjustingthe position of the body portion of the plate 17 about the screw 20 the amount 'of'resistance against the upward movement of the weight and the rotation thereof may be varied in accordance with'the axial position of the slot since the slot may be'so positioned that the stem of the weight will be pulled against the side of the slot with greater orl'ess force according to the position of the slot relatively to the direction of the movement of the running strand.

By providing weights ofdifferent sizes such as illustrated inFigs. 4 and 5 and by varying thei inclination of the'supporting' plate 17 the device may be adapted'to impose a'ny desiredtension upon the running strand. By reasonof its simplicity of construction thefdevice is easily applicable to any yarn winding apparatus.

It is to be understoodthatembodimentsof the invention disclosed herein are illustrative and not restrictive and that various changes in form, construction and arrange ment of parts maybe made'within the meaning and scope of the following' claims.

Having thus described my invention what; I claim as newand desireto secure by Letters Patent is:

1. Tension mechanism for yarn winding machines comprising amember havinga'flat weight supporting surface inclined to the horizontal, a weight slida'bly mountedupon said weight supporting surface and 'means for guiding the running strand ofyarn beneath said weight to cause the running strand partially to support said weight:

2. Tension mechanism for yarn winding machines comprising emember a thereon, means for guiding the running strand of yarn beneath said Weight to cause the running strand partially to support said Weight and means for adjusting the inclination of said weight supporting surface.

3. Tension mechanism for yarn winding machines comprising a Weight having a cylindrical stem a member having a weight supporting surface inclined to. the horizontal and slotted to receive the said Weight and permit up and down movement thereof on said Weight supporting surface and means for guiding the running strand of yarn around said stem to cause said running strand partially to support said Weight.

4:. Tension mechanism for yarn Winding machines comprising a weight in the form of a disk having a cylindrical stem, a plate having a Weight supporting surface inclined to the horizontal and slotted to receive the stem of said Weight, means for guiding the running strand of yarn around said stem to cause the same partially to support said Weight and means for adjusting the inclination of the weight supporting surface.

5. Tension mechanism for yarn Winding machines comprising a weight in the form of a disk having a beveled periphery and a cylindrical central stem, a plate having, a Weight supporting surface inclined tov the horizontal and slotted to receive the stem of said Weight, means for guiding the running strand of yarn around said stem to cause the same partially to support said weight, and means for adjusting the weight supporting plate to vary the position of said slot relatively to the direction of movement of the running yarn.

6. Tension mechanism for yarn Winding machines comprising a member having a weight supporting surface inclined to the horizontal, a Weight mounted upon said surface and capable of movement in the general direction of the movement of the running strand, and means for. guiding the running strand between said weight and said supporting surface at one side of the vertical axis of said Weight, whereby said strand will be frictionally engaged both by said supporting surface and said weight, and when CHARLIE O. CARTER.

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