US1085360A - Skein-unwinding device. - Google Patents

Description

T. J. SANDS.

SKEIN UNWINDING DEVICE. APPLICATION FILED DBO. 2, 1912.

1,085,360. Patented Jan. 27, 191i 2 SHEETS-SHEET 1.

T. J. SANDS. SKEIN UNWINDING DEVICE. APPLICATION FILED DEC. 2, 1912.

2 SHEETSSHEET 2.

WITNESSES v N\/ NTO I j M (m A TTol NE s Patented Jan. 27, 1914.

UNITED STATES PATENT OFFICE.

THOMAS J. SANDS, 0F PROVIDENCE, RHODE ISLAND, ASSIGNOR TO UNIVERSAL WINDING COMPANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

SKEIN -UNWINDIN G DEVICE.

Specification of Letters Patent.

Patented Jan. 2'7, 1914.

Application filed December 2, 1912. Serial No. 784,576.

To all whom it may concern:

Be it known that I, THOMAS J. SANDS, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Skein- Unwinding Devices, of which the following is a specification.

My invention relates to unwinding devices for controlling the unwinding of yarn or thread from hanks or skeins, in delivering the same to winding or other textile machines.

My improvement consists essentially in providing means influenced by the tension of draft on the yarn and adapted to act directly on ing of the strands.

The object of my improvement is to accomplish a more sensitive and direct control of the unwinding or unreeling of the yarn so as to prevent strain or breakage of the individual strands and, furthermore, to faci litate the delivery of the yarn by lessening its tendency to become tangled or caught in the skein. By arranging the controlling devices to act directly on the skein instead of on the swift, reel, runner or other device which supports it, I avoid the effects of the momentum' and inertia of these parts and consequently relieve the yarn of the strain to which it is usually subjected by being obliged to operate the braking mechanism employed in connection with the rotating elements.

The invention is fully explained in the following specification, illustrated by the accompanying drawings, in which Figure 1 is a side elevation of my new device showing it applied to a usual form of winding machine; Fig. 2, a plan view of the upper skein-holder or runner and its supporting devices, showing the arrangement of the tension controller-arm in connection therewith; Fig. 3, aplan view. of the lower runner and its supporting devices; Figs. 4, 5 and 6, enlarged views showing details of construction.

Referring first to Fig. 1, A designates the the skein to regulate the unwindframe of a winding machine of well known construction which is mounted on a bed B supported by uprights or legs C. The machine of the style here shown is generally made up of a number of frames or heads A arranged in series along the bed B and carrying bearings for the winding-spindles d which project from the sides thereof. Suitable brackets E also overhang the sides of the frames A and serve as supports for the reciprocating thread-guides e which are traversed along the winding-spindles to deposit the thread or yarn thereon to form the cops or bobbins as illustrated at X. It is to be understood, however, that my new unwinding device is applicable to winding machines of other types than that here shown and is adapted for use with various and sundry appzliratus employed in the manufacture of texti es.

I have preferred to illustrate tion as arranged to be applied to the winding machine in series, corresponding to the arrangement of the series ofwinding-spindles,

my invenbut only one complete device is here shown since all of them are usually of the same construction.

For supporting the devices on the machine I employ two parallel, horizontal rods or bars F, F which are preferably square or rectangular in cross-section and arranged to be held in brackets, G, G. The brackets G, G consist of opposite jaw-members g, o

' adapted to be clamped over the flanges c of the legs C by means of the bolts 9 as shown more particularly in Figs. 2 and 3. The main jaw-member g is formed with an upwardly extending bearing 9 and a depending tail-piece 9 adapted to bear against the side of the leg C to take the downward thrust due to the weight of the parts supported on the brackets. Extending through the bore of the bearing 9 is a sleeve or bushing H formed with a square or rectangular hole adapted to receive the rod F or F. The rods F and F are held in the sleeves H by the set-screws h and the sleeves, in turn, are held in the bearings. g by set-screws 71'.

' while providing The screws h are preferably formed with rounded .or pointed ends adapted to engage correspondingly formed circumferential grooves k cut in the peripheries of the sleeves H. This arrangement serves to hold the sleeves longitudinally of the bearings g for a firmer grip of the screws to prevent accidental turning of the sleeves. By looosening the screws slightly the sleeves can be turned in their bearings g to adjust the rods F, F about their axes and thereby alter the position of the arms J, J which are supported on the rods.

The arms J and J reels or runners K and K skein Y is stretched. The .upperarm J is' support the rotatable formed at its inner end with a hub 7' having a square or rectangular slot on its under side adapted to receive the rod F. The arm is thus prevented from turning on the rod, but

I can be slid longitudinally thereof to adjust its position along the machine and a setscrew j serves to secure the arm in its proper position. Midway between 'its extremities, the arm J is formed with a downwardly extending crook or elbow 9' provided with a hub 3' in which is secured a horizontal rod L by means of the set-screw 1.. Preferably, the rod L extends outward-from both sides of the arm J to provide bearings fora pair of runners K, only one of them being shown in the drawings. These runners. or reels K cooperate with a pair of similar runners K arranged below on the arm J and together serve to support the skeins which deliver to two adjacent' winding-spindles on the frame A.

Pivoted on the rod L adjacent the end of the hub 1' is a block M, shown in detail in Figs. 4 and 5, which carries the wire cpnt-roller-arm N for controlling the unwinding of the skein. The block M is formed with a vertically extending slot m, and the wire arm N rests in the bottom of this slot. A bowed spring-plate 0, having its body por tion fitted to the ing ears 0, 0 abutting the ends of the block M to keep it in position therein, is arranged above the arm N with its extremities engaging the latter. Screwed into the top of the block M is a set-screw p. adapted to be set down against the spring-plate O to bind it against the arm N and hold the latter in position in the slot m. By releasing the screw ;0 the arm N can be moved longitudinally in the block M to adjust it in relation to the skein, as afterward more particularly described. The outer end of the arm N is formed with an eye or pigtail nthrough which the yarn y is adapted'to draw as it leads from the skein Y, while its inner end is bent into a fork or loop at adapted to inclose the strands of the skein on its under .a purpose hereinafter around which theslot and laterally-projectlatter in the hub to.

the weight of side, as shown in Fig. 1. -.The rear cross-bar of the fork n is of substantially V-shape for explained. Extending through a lug y"* at the outer end of the arm J is a right-angled elbowmember R, adapted to slide to adjust its upright arm 1' toward or away from the axis of the arm N, and secured in position by the set-screw r. A U-shaped clamp r is arranged to be adjusted vertically on the arm 1' of the member R and is held in position by the set-screw 1' A helical spring S is secured at one end to the clamp 7' with its opposite end fastened to a clamp s, the latter beingclamped on the'arm N by means of a screw .9.

The reels or runners K, K may be ofany. usual form, but as here shown consist of circular end-flanges k, k, with cross-bars or struts V is extending upper runner K is supported rotatively on the rod L, as previously explained, with its inner flange abutting the end of the block M and is held in place by the collar Z secured on the rod by a set-screw P. The lower runner K is mounted to rotate on the right-angled extension t of a wire arm T and is held in position by the collars t, t which are secured to the rod by set-screws t t. The arm T is supported at the end of the arm J, which latter is secured to the lower rod F in the same manner as the upper arm J.

Referring to Figs. 1 and 6, the arm T is held in an adjustable bearing-member U which is pivoted on 'a rod at extending through a hub 7' at the end of the arm J and secured in place by the setscrew j. collar j secured by the set-screw 1' serves to retain the bearing-me ber U in place on the rod u. The member U is formed with a hub u, see Fig. 6, in'which is a split bushing u throughwhich the arm T extends. A set- ,screw u in the member U has its end formed with a reduced portion a which engages a bushing a to hold the.

radial hole u in the The screw 10 is adapted to be set against the bushing a to bind it on the arm T'and by loosening the screw a the arm T can be slid in the'member U to adjust the position of the runner K in relation to the pivot point of the arm.

Adapted to slide onthe rear end of the arm T is a weight V, held in position by the set-screw 'v and arranged to counterbalance the runner K. A lug j projects from the side of the armiJ and is adapted to contact with the arm T to prevent its forward end from tilting downward beyond a substantially horizontal position.

The complete device operates as follows: The skein Y is stretched. around the crossbars of the two reels or runners K, K, the runner K being swung upward on'its arm between them. The

1,oec,seo a T to facilitate the placing of the skein over jFStflItS to rotate the yarn will be taken up the heads or flanges It The arm T isthen T with a sudden draft and its pull on the arm adjusted in the bearing-member U so that N will cause the latter to be rocked to enthe skein will be kept taut by the weight of tirely remove the fork n from contact with the runner K while the arm is in a substanthe skein Y and allow the latter to move tially horizontal position. The weight V is freely. After this first sudden pull, the then set to partly counterbalance the runtension of the draft will be relieved and the ner according to the character of the ma.- arm N will be moved by the spring S to terial in the skein. For use with very light, carry the fork n" into'engagement with the fine yarns the weight V is set so that it very skein once more to prevent a too free movenearly balances the weight of the runner; ment of the latter on the rotating runners ut f r very heavy, coarse yarns more ten- K and K. In this way the tension of draft sion is required to stretch and straighten the on the delivering Earn serves to regulate the strands so that the wei ht V i moved pressure of the ork n against the skein toward the pivot point et the arm T, nd, and provides an inductive control which under extreme conditions, can even be placed pr en s the yarn from delivering too freely on the same side of the ivot with th runwhile, at the same time, facilitating its unner itself. To ada t th d vi t diff t winding. The V-shaped construction of the lengths of skeins the arm J an b wu g cross-bar of the fork n is designed to adapt upward or downward, t gul t th dj it to conform to the natural contour of the tanc between the runner by i l t outside of the skein Y, as illustrated by the ing the rod F in its bearings in the brackets d t-and-dash lines in Fig 2, and it has been G; it b'eing understood that ther r two demonstrated that the action of this fork isto bracket for supporting th d F, one t gather the skein somewhat-as it is gathered in either end of the machine. This is accom- Q h n when being Stretched and Straightplished by loosening the set-screws h to *enedfi T is to y, e fork s n cllew th le v H t t i th b ti tion which tends to straighten and allne the 9 a before described, ere extreme strands of the ske1n and to keep them in changes in the relative position of the runpcsltwnfio dehvel freely ners are necessary the brackets G and G ca Or snarling. When the ske1n is allowed to be moved upward and downward on the legs flatten 9 1 r e r ls 0r runners on The single strand of yarn 3/ is d aw which it is supported the coils become f th t f th k i Y d i d crossed andmisplaced so that the delivery through the pigt-ail n at the end of the con- 0f h y 1s hp fl W my improved tr Her-arm N Th it i i d up Over devlce the yarn is maintained with the coils a guid ll w on th d f a eomPenmore nearly in their proper parallelism and gator-arm W and led to the inding-spindle the lntermittent gatherin aClSIOII Of the fOIk d after being threaded through the threadserves to loosen n r c hem one from guide e. The compensator-arm W is can Q so that the y Pulls Off more trolled by a spring w to keep the yarn taut yand is usually arranged to cause the oper It W111 he noted that 111 y h devlce ation of the stopping-mechanism of the mathere are no hmklhg elhmehts aictlhg on the hi h th yarn b k -1 h t d runners to control their rotation and for b t as th d i f no t f th this reason the runners can be made of very present invention, they have not be n d light construction so as to avoid the effects scribed in detail. The fork n at the rear of h h h h this reason end of the controller-arm N reaches under t owlng to then llght g and incloses the strands of the skein Y and thtloh. the runners can he stillhed II1I1Ch i pressed i t th yarn th h th fmore easily and therefore less strain is put fect of the spring S. Before the machine P the y Furthermore, when the is started the elbow-member R is adjusted draft on t ey n 18 s e t th s opping to give the pro r ten io t th p in S of the winding, there Wlll be less tendency to maintain th rop nt t of th f k fortthe runners to run ahead owing to m0- with the skein and this pressure is autoent m d 11I 1 1nd l ngth of yarn not mat-ically varied during the unwinding of required. The yarn is also relieved of the the yarn through the operation of the arm strain whichwould arise from causing it to N. The point of connection of th pring operate braklng devlces for the runners. S can also be adjusted along the arm N My new device is adapted foruniversal adto vary the leverage exerted thereon. The Justment for all lengths of skeins and for position of the fork n in relation to the all sizes and weights of materials. It can skein. is adjusted by swinging the arm J upbe employed to unwind the finest silk withward or downward, this being effected by out subjecting the material to undue strain turning the rod in its bearings in the or stress, and is equally well adapted for bracket G. When the winding-spindle first coarse or heavy yarns.

without tangling the rounwinding of the strands thereof.

exact arrangement shown,

said arm having one end adapted to bear d1- free length of skein ex- Various modifications might be made in the form and structure of the parts of my device without departing from the spirit or scope of the invent-ion.

Therefore, without limiting myself to the what I claim 1. In a skein-unwinding device, the combination with spaced-apart rotatable supports for holding a skein stretched between the same, of a controller-arm adapted to be operated from the tension of draft on the delivering yarn to apply pressure to the free length of skein extending between the supports to control the unwinding of the strands thereof.

2. In a skein-unwinding device, the combination with spaced-apart rotatable supports for holding a skein stretched between the same, of a: controller-arm pivoted adjacent said supports and arranged to be operated by the tension of the delivering yarn,

the

rectly against the supports to control the tending between 3. In a skein-unwinding device, the combination with spaced-apart rotatable supports for holding a skein stretched between thesame, of a controller-arm pivoted adjacent said supports and carrying a guide at one end through which the strand of yarn draws, said arm arranged with its opposite end engaging the free length of the skein extending betweerg the supports, and resilient means to swing the arm to apply pressure against the strands of the skein.

at. In a skein-unwinding device, the combination with rotatable means for supporting the skein, of a. controller-arm pivoted adjacent said means and arranged to be operated by the tension of the delivering yarn, said arm formed with a fork at one end adapted to inclose the strands of the skein and to apply pressure thereto in accordance with variations in the tension ofdraft on the yarn.

5. In a skein-unwinding device, the-combination with a pair of rotatable reels adapted to support a skein extending around them, of an arm pivoted adjacent one of said reels and arranged with the yarn leading through a guide at one end, said arm having means atits opposite end adapted to bear on the inside of the skein, and means to swing said arm to apply pressure against the skein.

6. Ina skein-unwinding device, the combination with a pair of rotatable reels adapted to support a skein stretched between them, of a pivoted arm arran ed to be operated by the yarn drawing off mm the skein, said arm having a fork reaching under and inclosing the strands of the skein extending and a spring between the reels on one side, to swing the arm to apply pressure on the skein.

7 In a skein-unwinding device, the combination with rotatable reels for supporting a skein stretched between them, of a pivoted controller-arm constructed of wire bent at one end to form a pigtail and having its opposite end bent in a fork adapted to reach underand inclose the strands of the skein, the cross-bar of said fork being of substantially V-shape to adapt it to gather and straighten the strands, and means to rock the arm to press the fork into contact with the skein. j

I -8. In a skein-unwinding device, the combination with a rotatable reel, of an arm ivoted on the axis of said reel and arranged to be longitudinally adjusted in relation de at thereto, said arm carrying a yarn-gm the one end and means adapted to engage strands of the skein at its opposite end.

9. In a skein-unwinding device, the combination with a rotatable reel, of means for supporting a controller device-pivoted on the axis of said reel, and an arm secured to said means to adapt it-to be longitudinally adjustable therein, said arm carrying a yarnuide at one end and means adapted to engage the strands of the skein at its 0pposite end. a

10. In a skein-unwinding device, the combination with reels for supporting the skein, of an arm pivoted on the axis of one of the reels, said arm formed with a yarn-guide at one end and a fork at the opposite end adapted to engage the strands ofthe skein, a member adjustable in relation to the axis of the reel, a spring secured at one end to said member, and means for securing the opposite end of the spring to the arm to adapt it to be adjusted along the latter. 11. In a skein-unwinding device, the. combination with brackets G, G of bushings I-I arranged to be adjusted rotatively in said brackets, horizontal rods F, F mounted in said bushings, arms J, J secured to said rods, a reel K rotatably mounted on the arm J, an arm N pivoted on the axis of said reel and adapted to engage the strands of the skein, an arm T pivoted at the end the arm J, a reel K rotatably mounted at one end of the arm T, and a counterweight V adjustable along said arm. 12. In a skein-unwinding device,'the combination with two horizontal rods, of means 1 -to support said rods to allow on the axis of said reel and arranged with 1 one end adapted to engage the strands of the skein, a bearing U pivoted on the arm J, an arm T longitudinally adjustable in said bearing and a reel K rotatably mounted on the arm T.

13. In a skein-umvinding device, the combination with an arm J, of a member U pivoted on said arm and formed with a bearing 2;, a split bushing n in said bearing formed with a radial hole 24 a set-screw in 0 the bearing 2/ formed with areduced end 14* engaging the hole 14 an arm T adjustable 1n the bushing u and adapted to be clamped therein, and a reel K rotatable on the arm T.

In testimony whereof I aflix my signature in presence of two Witnesses.

THOMAS J. SANDS.

WVitnesses:

ARTHUR A. ARMINGTON, HERBERT K. ALLARD.

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