US1450348A - Island - Google Patents

Description

Apr. 3, 1923. 1,450,348 I H. G. EEEDIE RING TWISTING OR SPINNING DEVICE Filed Feb, 5 1922 Patented Apr. 3, 1923.

Unire-n stares HRBERTG. Bnnnn, or PAWTUCKET, RHODE IsLaNn.

eine 'TWISTING on 'SPINNING nnvcn.

Application filed February s, 192g.` seriainp. 533,798.

To all whom t may concern.'

Be it known that I, HERBERT G. BEEDE, a citizen of the United States of America, and resident of Pawtucket, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in R' 'gf Twisting or Spinning Devices, of which the "following is aspecification.

This invention concerns ring twisting or spinning mechanism and relates morepar'- ticularly toa ring and traveler of that type commonly employed in' the twisting and spinning of'relatively heavyy yarns or cords. Although the invention is primarily intended for twisting, itl may also be used for spinning certain materials, such as jute or linen,l and its broader application to both twisting and spinning is contemplated by the claims.'

Inthe operation of the older type of twisting mechanism whichis well adapted for the twisting of line yarns, the vertical traveler employed is subjected during its movement both to the drag of the yarn and to centrifugal action. Vith such an arrangement' a properly weighted traveler tends to'balance about the lower flange of the 'ring under the opposing action of centrifugalforce andthe yarn-1 pull and under such circumstances any undue increase in speed-:results in increased centrifugal' force with' a corresponding increase in` frictional dragf of theV traveler upon the ring', while ad# ditional tension on the yarn tends to dee crease such drag, ythe speed of revolution of the traveler being -thus automatically controlled. In" starting the machine the yarnpull is'relatively large, thus decreasing the' frictionaldrag'and permitting the traveler quickly to come to normal speed, while in stopping, the pull ofthe yarn is reduced substantially to zero and centrifugal action serves quickly to bring the traveler to rest without overrunning.V

In the devices disclosed inv patents to Herbert G. Be'ede Nos; 1,075,004, October 7, 1913 and 1,174,961, March v14C, 191,6,y anvarrangement suitable for the twisting and spinning of heavy yarns or cords is disclosed in which the speed ofthe revolving ring or traveler is automatically controlled by centrifugal action' alone. The arrangements disclosed in these patents serve to exertl av .varying centrifugall draguipon the' revolving ring 'directlyinfaccordance with variations in' the speed of the latter, thus effectively controlling su'ch speed during normal running' off in connection with twistingv or'spiniiingl de"- vices ofthe general type disclosedinthel aforesaid patents, such' that the velocity-pri the 'revolvingring may be madedep'end'ent imposed by4 the the yarn will strain, andv in stopping,.the revolving ring" promptly andwithout runwill come to rest ning ahead.

The labove object maywell' be accom-,l

plished by the employment of 'a device such as is illustrated companyin'g drawings, in whic'h,

Fig. 1 is a plan'view of the device of the present invention.' certain parte"being'fbrokenYv away toillustrate the interiorv construction, the position ofthe windingspindle and yarn beingindicated in dotted lines;

2 isa diametral, vertical cross .sectip'n'l throughthe device of l on a line .suchl as 2-2 thereof, but showing'thetwo brake devices as occupyingirelatively 'different positions; and y y .A f.v

Figj is a` fragmentary side elevation showing one of the yarn guides and associated parts. y Y

In the' drawings the numeral 1 indicates a portion of the rail of a spinning frame or twister, such rail being' provided with an opening fr'the reception of the stationary ring 2. This ring comprises an'upstanding'` flange 3. a'substantially parallel upstanding' flange 4, and a downwardly directed? {iange 5, the two last-named fianges being'substanL tia-lly in alignment and providingthe c' lindrical inner surface- 6, Within' the channel between the flanges 3 and 4:' arrar'lged. the revolving 'traveler ring comprisingithe cylindricalfring member 7 and 'the' annule-'r'- 8, the members 7 and' 8 b'eing'suitably.

plate secured together as byfmeans efscreW-s 9.. The' member 7 is provided upon'its exterior surface with a ball race groove 10 which-co'- operates with a complemental groove in'a ring 11,also seated within the' channel be'- tween the flanges 3, 4, andsecured to the provide an arrangement useful*- yarn, whereby' in s tartin'g,` not be subjected tofundfi'eby way of example in theacange 3 by means of screws such as 12. W'ithin the hall race thus provided are arranged ball bearings 13 anc, if desired, the individual bearings may be held in spaced relation by means of a suitable cage 14 having slots or openings for the reception of the several balls. The traveler ring as thus arranged may be rotated very easily within the stationary ring, while the bearings for such ring are well protected from dirt or fly.

Suitable yarn guides are provided in accordance with the number of yarn ends to be twisted together. 1n the present instance, two such guides are illustrated, these guides comprising the plates 15, 16 respectively, which rest upon the upper surface of the annular member 8, such plates being provided at opposite ends with radially elongate slots 17. Screws 18 pass loosely through such slots and engage threaded openings in the member 8 whereby the plates 15, 16 are permitted to move slightly in a radial direction but are secured to the revolving ring for rotation therewith. Depending from the inner edges of the respective plates 15, 16 are the members 19, 20, constituting brake shoes for engagement with the inner cylindrical surface 6 of the stationary ring 2. Mounted upon the plates 15, 16 are yarn guide eyes 21, 22 respectively, plates 15, 16, or, if desired, formed as separate elements suitably secured thereto. As

indicated in Fig. 1 the yarn Y passes through'the guide eye 21 for twisting with a similar yarn (not shown) passing through eye 22, as such yarns are wound upon the spindle. 1n the operation of the above device, it being assumed that the spindle is stationary, a considerable tension or drag is placed upon the yarn Y as the spindlestarts to rotate, so that if the guide eyes are not already in ositions corresponding to that illustrated at the left of Fig. 2, they will immediately be pulled inwardly to occupy such a position. As thus positioned, the brake members 19, 20 are out of contact with the surface 6 of the stationary ring and thus the drag of the yarn may readily impart a rotating movement to the revolving ring about the axis of the spindle without having to overcome any frictional resistance other than that of the ball bearings.r As the ring speeds up, centrifugal force tends to move the plates 15 and 16 with their brake shoes 19, 20 o-utwardly until such shoes occupy positions such' as indicated at the right-hand side of Fig. Q. As thus arranged, the brake shoes, by contact with the surface 6, offer a certain amount of frictional resistance to the rotation of the revolving ring. This centrifugal action during normal operation varies in accordance with the speed of rotation of such eyes being integral with thea the revolving traveler ring, while the drag of the yarn acts in opposition to centrifugal force, the two forces tending to balance one another, so that the brake device thus provided tends automatically to retard the speed of rotation of the revolving ring. When the winding spindle S is stopped, the momentum of the relatively heavy revolving traveler ring with its brake devices tends to continue its rotating movement, and if such movement should continue for any appreciable time there would be a tendency to tangle the several yarn ends which at this time are free from any substantial tension. The removal of tension upon the yarn ends however, permits centrifugal force to act without restraint upon the plates 15 which thus move freely outwardly, bringing the brake shoes 19, 20 firmly against the inner surface 6 of the stationary ring thereby imposing an effective braking action which serves to bring the revolving ring to rest very quickly. lt will thus be evident that in starting, the drag upon the yarn is sufficient to overcome the action of the brake devices thus permitting the revolving ring to speed up rapidly, while in stopping, the cessation of drag upon the yarn permits the full effect of centrifugal action to be applied to the brake devices thus stopping the traveler quickly.

`While a specific arrangement for mounting the revolving traveler ring in the stationary ring has been illustrated herein, it is to be understood that in so' far as the automatic control of the action of the revolving ring is concerned, such precise arrangement is immaterial except in so far as it tends to reduce friction between the stationary and rotating parts, thus making the brake device more sensitive in operation than would be the case were the revolving ring less free to move.

That I claim and desire to secure by Letters Patent of the United States is:

1. A ring spinning or twisting device comprising a ring rotatable about its own axis, and automatic means comprising a yarn engaging element for regulating the speed of rotation of said ring both in normal operation and in stopping.

2. A ring spinning or twisting device comprising a stationary ring, a revolving ring coaxial therewith, and means carried by said revolving ring and operable conjointly by the pull of the yarn and by centrifugal force for regulating the speed of movement of said revolving ring.

8. A ring spinning or twisting device comprising a ring arranged for rotation about its own axis, and brake means movable relatively thereto for controlling the speed of rotation of said ring, the action of said brake means being regulated by the pull of the yarn.

4. A ring spinning or twisting device comprising a revolving ring arranged for rotation about its own axis, a brake device mounted upon said ring and operative under centrifugal action to retard said ring in its rotation, and means whereby the pull of the yarn is transmitted to the brake device in opposition to such centrifugal action.

5. A ring spinning or twisting device comprising a ring arranged to rotate about the axis of the winding spindle, and a combined brake device and yarn guide mounted upon said rotating ring and freely movable radially thereof to a limited extent under the action of centrifugal force.

6. A ring spinning or twisting' device comprising a revolving ring, a weighted brake member carried by said ring and movable relatively thereto, and a yarn guide eye secured to said brake member.

A ring spinning or twisting device comprising a stationary ring having a brake surface, a ring rotatably supported by the stationary ring, a member mounted upon the revolving ring and freely movable radially with respect thereto under the action of centrifugal force, a weighted brake shoe carried by said member and engageable with the brake surface of the stationary ring, and a yarn guide mounted upon said member.

8. A ring spinning or twisting device comprising a stationary ring, a ring mounted for rotation relatively thereto, antifriction bearings interposed between said rings, a

brake supporting plate upon said rotating ring, said plate having a radially elongated slot, securing means passing loosely through said slot for connecting said plate to the revolving ring, and a yarn guide device mounted upon the plate.

9. A ring spinning or twisting device comprising a stationary ring having an annular channel therein, a revolving ring having a flange seated within said channel, antifriction bearings interposed between said flange and an element fixed to the stationary ring, a radially movable late mounted upon the revolving ring and reely movable relatively to the latter under the action of centrifugal force, and a brake shoe member depending from the inner edge of said plate and engageable with the inner surface of the stationary ring.

10. A device of the class described comprising a stationary ring having an annular channel in its upper surface, a composite revolving ring consisting of a cylindrical ring fitting within said channel and having a ball groove in its outer face and a cover ring secured tothe cylindrical ring and providing a substantially horizontal upper surface, ball bearings interposed between said ball groove and a similar groove in a part fixed relatively to the stationary ring, and a yarn guide fixed to the cover ring.

Signed byl me at Pawtucket, Rhode Island, this thirty-first day of January, 1922.

HERBERT G. BEEDE.

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