US1073308A - Braiding-machine. - Google Patents

Description

s. w WARDWELL.

BRAIDING MACHINE.

APPLICATION FILED JAN.19. 1911.

1,073,308, Patented Sept. 16, 1913.

2 SHEBTSSHEET l,

- W/messw AMY/Woe 7%. 6 WWW 5y /%/km M/( 6, A fl I/O'LMA' Arm/swa s S. W. WARDWELL. BRAIDING MACHINE. APPLIUATION FILED JANJQ, 1911.

1,073,308. Patented S t. 16,1913.

2 SHEETS-"SHEET 2.

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SIMON w. wARnwnaL, .or PROVIDENCE, nnonn ISLAND. Y

hairpins-Macrame.

To all whom it may concern s eaaaanj o f Letters Patent. a plic tion med January 19, 191-1.

State of Rhode island, have invented cer- 'tain new and useful" improvements in Bra'iding-lvlachines, of which the following is a specification.

My 1 invention relates to braiding -machines and especially to the devices for actua atin'g the stopping-mechanism to control the operation of the machine. My new device is particularly adapted for use on machines such as that shown and described in my Patent No. 1,032,870, granted July 1 6, 1912,

in which the fabric is braided from a plu-j ra'lity of yarn supplies or cops carried in about a common axis.

two tiers rotating in opposite directions} avise prevented from delivering freely fromf the cop.

The invention companying drawings, in which i new device applied thereto; Fig. 2, a plan view of the bottom of one of the lower supply-carriers showing the feeler-d'evice controlled'by the yarn from-the lower supply cop; Fig. 3, a detail. view of the feeler-device controlled by the yarn from the upper supply Cop, I

Referring to Fig. 1, the braiding machine here shown is similar in general respects to that described in my'patent above referred to and therefore need not be'descr-ibed in de tail. It comprises the essential elcment-s of .45

a main frameQ. provided with ball-bearings outer turret- 4 rotates in one direction to Patented Sept.16,1913. Serial No. 603,530.

y I revolve the cop-holders 6, while the inner Be it known that IySmroN WAnnwnn-L, a citizen of theUnited States, residing at Providence, in the county of Providenceand E turret 3 rotates in the opposite direction and drives the supply-carriers 9 on the track 8.

Suitable engaging means are provided bepass over and under the upper carriers 9, and the yarns as lead up from thecops 12 and merge with the yarns y to form the fabric 1). a c

The stoppin -mechanism of the machine is controlled :througha brake-ring 14 which is mounted on .a flange 15 of the frame 2 and adapted to be moved-rotatively about its axis to a slight extent to release the detent which controls the clutch-actuating devices. lhe rotative movement of the brakering 14 also acts to raise it bodily from its bearing on thefiange 15 to force its beveled face 16 intocontact with an oppositely beveled face 17 on the turret 4, and thereby a wedging action is effected which tends to raise the turret 4 against its bearing 18- on the turret3. The three elements 14, 4 and 3 so are thus carried into frictional engagement to exert a braking action to arrest the rotation of the two turrets. .The vparticu-lararis fully described in the following specification, illustrated by the ac-- rangement of these means is fully described in myPa-tent No. 1,008,504, granted Nov.

1 1, 1911, and need not here be further de- Figure 1 is a part-sectional elevation :of a portion of abra-iding machine showing the scribed.

The brake-ring 14 is operated-through the medium of arms orlevers 20, spaced at intervals around its circumference and adapted to be engaged by feeder-devices on the turret 1. These latter are actuated by means controlled bythe tension on the yarn g and w delivering from the supply cops 7 and '12, as later described. The arms 20 are pivoted at 21 on the flange 15 of the frame 2 and engage the ring 14 by means of scrcws22 extending through slots in the arms. The upper ends of thearms 20 are formed with enlarged portions 23, bent at right angles to the main portions and adapted to provide headsfor engagement with the feelerdevices. The exact structu-reand arrangement of the arms 20 willbe more fully described inan application to be filed later, but for the present purpose it is sufficient to state that by swinging the arms on their pivots they act to pry the ring 14. rotatively on its bearing. This rotati-ve movement of the ring releases the detent means of the clinch-actuating device to effect the stopping of the machine, as described in }ny Patent No. 1,008,504. granted Nov. 14, 1911, last referred to.

The'brackets 5 are formed with-upwardly projecting lugs 24 having "suitable slots in' which are pivoted bell-crank levers 25. .Qne arm 26of the lever 25 reaches down tobrmgits end adjacent the head 23 on the. arm 20, but this end is normally kept 'raised. away fromlthe latter by a coiled spring 27'he1d -ina'po'cket 28 in the lug 24. The'opposite arm 29 of-the lever 25 extends upward with its. end in close proximity to the deck of the carrier 9. Pivoted on the rim of the turret 4 is a bow-shaped lever 30 having a curved cam-face on its edge 32, see Fig. 3,

and with itsrunder side adapted to bear on the end of the arm 29.0f the lever 25. When the lever 30 is depressed it acts on the lever to move the arm 26 'down into position to engage the head 23 on the arm 20. The lever is moved through engagement-with normally suspended a drop-wire 31 which. is above the path'of'theiever' by the tension on the yarn w. When'the drop-wire 31 is the arrpwd, act 'todepress the,lever 30 to; tilt theleverz25."

- The arrangement of the'd op-wire v31 4 and its meeting devices will not e described in detail since they but form the subject matter of a separatethe drop-wire,

released its lower end curved edge 32in the direction indicated by are not claimed herein,

application. It will be obvious, however, from the present showing that-the fallingof ate, the feeler-device' 25 which coacts with the arm 20 to engaged by a {feelerdevice controlled'bythe tension on the yarn 3 delivering from the lower supply-cop 7 as now explained.

The cop-holder 6 is mounted on the bracket 5 to rotate with the (pp as the latter unwinds the yarn .and its rotation is con trolled: by

. engage .the tgeth 34 on the inside of the rim a pawl or detent 33 adapted to of the base see Fig. 2. The pawl 33 is .normally held in engagement with the teeth by a'spring 86 held in a pocket 37 in a lug 38 on the bracket 5. The release of the pawl to allow the cop-holder to turn, is .efl ected through a tension arm 39 having a" guide 40 through which the yarn draws. The ar'm- 39 extends from a rocker-shaft or rod 41 which at its lower end is formed with a lever 42.

' The lever 42 has one arm 43 adapted 'to engage the side of the pawl 33 and another oppositely extending arm 44 to which is secured oneend of a coiled spring 45. The opposite end ofthes ring 45 is fastened to a lever 46 which can amount of the springs tension on the arm will engage thelever" of range of'the 30,. as shown in Fig. 3, and riding oventhe entirely. 7 released when released by the breakage; exhaustion or hindrance to delivery of" the yarnm, will act on the lever 30"to oper:

V stopthe machine. The arm 20 is also adapted'to be -provide a stop the axis of. the machine.

eadjusted 'to vary the.

' 1,073,3oe I 44; Extending from the bottom of the bracket-g5jis a stud or abutment 47, which:

engages'the'arm 44 and acts as a; stop to 1 limit its range'of movemen't under action,

of the spring 45. Whentheyarn y is taken up by the braiding operation of passing it over or under the upper supply the -draft.

on the.'yarn'will swing the'arm 39' in the direction indicated by the arrow 0, Fig. 2. Such movement of. the arm' will rock the rod 41- and bring the arm of the lever 42' against the pawl '33. This-releases the pawl. 33-.from engagement with the teeth 34 .and allows the cop-holder '6 to rotate to deliver alength of-yarn as required.- When thetension on the yarny is relieved tlie'arm 43 swings back under influence of the-spring 45 toallowthe pawl to again engage the teeth: on thebase --of the copholder and the latter is thus prevented from furtherrotation. The spring45 is adjustedaccording to' the strengthof the yarn and the 4 character of the fabric-lto' ib'e.. produced, so .as to normally pawl 33 until it is required to render a length of yarn from" the cop.

Should the yarn break', however, '01 the sup.

ply become exhausted, thearmBQ will be and the spring 45' acting .oni-the arm 44 will swing the latter clear as illustrated in'- Fig. 2, its extremity eligages the end of; a feeler-rod. 48'w-hich is. "adapted to coact with the arms-20 on the main frame of the machine as now ldescribed.

hold the arm 43 'just out back against the-limiting stop .47. Asthe arm 44 swings back to its extreme position,"

'The rod 48 extends parallel-to the bot- .tom'of the bracket 5 and-ismounted to slide in bearings in the lugs 49-and- 50. The main.

portion of I the rod 48 extends throughqa hole in the lug-49 with its end 51 projecting therefrom in position to engage the head .23.-of the'arm 20, see 1-.

of its'bearings. The weight'of the rod 48 normally keeps it in a position with its end 51 out of range of the'arms20ywhen, however, the arm 39 .is relieved ofthe tension of the yarn y, the arm 44 will swing back end of the "rod 485.thereby projecting'the latter into position toi engage the head of the arm 20 as-the bracket 5 revolves about Thi engagementcauses the. operation of the stopping-mechanism as before described. i

to prevent it from sliding outf passes through 4 with its portion underaction of its spring 45 and= strike the To arrest-theoperation of the machine when the yarn catches onthe cop, becomes other cause, I provide the following instrumentalities: Pivoted in a lug on the under .side of the bracket 5 is a lever 61, preferably formed of'wire, with one arm 62 reaching out to engage the feeler-rod 48. The end of thearni 62 is here shown as formed with a loop 63 which hooks around the elbow 52 so that the'movement of the arm will effect a corresponding movement of the feeler-rod. The lever 61 also has an arm 64, the endaof which liesadjacent the pawl 33,.see-Fig. 2.v Only a-slight*movement of the pawl 33"is required to release its toe from the-teeth on the cop-holder 6' and normally this'movement does 'not aifect.

the position of: the arm 64 of the lever 61; Should the cop-holder be held from'turning, however, after the pawl is released, as, for instance by the. snarling or tangling of the yarn, then the arm 39 will continue its movement in the direction'indicated by the arrow a, underthe abnormal tension on the yarn. This continued movement of the arm 39 causes the arm 44 to swing the pawl 33 a suflicient extent to engage the arm64 of the lever 61 and thereby move the latter in the direction indicated by the arrow .0 to slide the feeler-rod 48 into position to engage the arm 20. The mechanism operates in the ,samemanner when a snarlor tangle occurs as the-yarn leaves the cop. Anyabnormal bunch or knot in the yarn will be prevented from passing through the loop or guide 40 and the arm-39 will therefore be swung under the influence of the excess sive tension in the direction indicated by the arrow (1 to causeth pawl to move the lever 61 and slide the feeler rod to. stop the machine.

The operation of the whole mechanism is as follows: It will be understood that the turret t rotates on the axis of the machine and carries the feeler-devi'ces, 25 and 48 around with it. Normally, when the yarns w and y are delivering from the supply cops 12 and 7 under tension, the lever 25 is maintained out of range of the arms 20 by the spring 27, and the feeler-rod 4:8 is also depressed out of range bythe action of gravity. lVhen the upper yarn w breaks, be-

.comes exhausted, or fails to deliver properly the drop-wire 31 moves down into position to engage oneof the levers*30. The levers 30 are spaced around the rim of the turret and are equal innumber to the levers 25 which correspond in number'to the lower supply brackets 5. It will also be understood that there is the same number of upper supply-carriers which travel onthe track of I the turret 4 in the opposite direction tothe latters rotation.- It is therefore obvious that when a drop-wire on one of the upper carriers falls itwill almost insta ntly meet with one of thelevers 30 travelingin the opposite direction, and, as before stated, as

the wire 3]. travels over the curved edge of the lever 30 the latter is depressed to the position illustrated by dash lines in Fig. 3.

ment which," in turn, effects the action of the stoppingand braking.-mechanism. When a yarn from the lower supply 7 breaks or is exhausted the lever 39 is released and the'arm l-et swings back under the action f the spring 45 to project the feeler-rod 48 into position to engage one of the arms 20. The rod 48 then coacts with the arm 20 in the same manner as the lever 25 to stop the machine. When the yarn y is hindered from delivering, or a tangle obstructs the 'guide 40 on the arm 39, the latteris moved in the direction indicated by the arrow 66 and, through the arm 43 and pawl 33, the lever 61 ismoved to project the feeler-rod 48 into its operative position.

Itv will be seen that my invention provides a simple and efficient mechanism for operating the feeler-devices to coact with the stopping-mechanism when a yarn breaks or its delivery is impeded, and the new. device is particularly positivegjand quick in action, thus insuringprompii stopping of the machine upon failure of any one of the yarns.

Various modifications might be made in the structure and arrangement of the parts of the device without departing from the spirit and scope of the invention. Therefore, without limiting myself to the precise construction shown and described, what I claim is:

1. In a braiding machine, the combination with a rotating turret, of supply-ear riers revolved by said turret about the axis of the machine, stopping mechanism to arwith said tension-devices to cause the operation of the feeler-devices under abnormal tension on the yarn.

2. In a braiding machine, the combination with the'rotating turrets, of supply carriers revolved by said turrets about the axis of the-machine, stopping-mechanism to arrest the rotation of the turrets. feeler-devices for causing the operation of the stopping-mechanism, tens10n-dev1ces on the carriers for controlling the delivery offthe yarn, and meanscooperating therewith to actuate the feeler-devlces upon relief or, excess of tension on the yarn.

7 3. In a braiding machine, the combinainto position to cause the operation of the stopping-mechanism through their movement with the carriers, means to control the delivery of the yarn from the supply-carriers, and devices coiiperatingtherewith to actuate the feeler-devices when the delivet'y of the yarn is impeded.

. l. In a braiding machine, the combination with a plurality of supply carriers for carrying the supply-cops of yarn, of meansto revolve the supply-carriers aboutt-he axis of the machine, stopping-mechanism toarrest the movement of the supplycarriers, feeler-devices to cause the operation of the stopping-mechanism,tension-devices carried bythe supply-carriers to control the delivery of the yarn therefrom, and means whereby said tension devices act in one direction -upon relief of tension and in the opposite direction upon excess of tension to move the feeler-devices to cause the operation of the stopping-mcchanisnr 5. In a braiding'machine, the combination with a plurality of supply-carriers for carrying the supply-cops of yarn, of means to revolve the supply-carriers about the axis of the machine, stopping-mechanism to arrest the movement of the supplycarriers, feeler-devices to cause the operation of the stopping-mechanism, a rock-shaft on the supply-carrier, an arm on said 'shaft adapted to be moved from variations in tension on the yarn; a lever operated from said arm through the rock-shaft, a spring to control the movement of the arm and lever, and means intermediate the lever and fccler-device to cause the operation of the latter when the arm is moved against the action oi the spring under abnormal tension on the yarn.

(i. In a braiding-niachine, the combination with the stoppinganechanism therefor, of

' means to operate the same, a feeler-device to actuate said means, a rotatable cop-holder 'lor carrying the supply-cop, a detent to prevent the rotation of'the copholder, means controlled by the; tension on the yarn and movable to release saiddetent, and devices intermediate said means and the feeler-de- \ice toeop'erate the latter when themove- Y mentof the tension controlled means is con,-

tinned'after. the release of the detent.

7. 'In l-,br: iiding-macliine, the combination \vitl tlie stopping-mechanism therefor, of a feeler device for causing the operation of the sanie, a rotatable supply-holder for carrying the supply-cop, a detent'to ,prevent the roto operate the feeler device.

and movable in one tation of the supply-holdenmeans cdntrolled by the tension' on the yarn to. move said detentto release the cop-holder, and means operatedby excessive movement of the detentcto move the machine.

8.. In a bi'aiding machine, the combination with the stopping-mechanism therefor, of a feeler-device for causing the'opera'tion of the same, a rotatable supply-holder for carrying the supply-cop having a' base formed with ratchet teeth, a pawl to engage saidteeth to prevent the rotation of the supply-holder, means controlled by the tension on the yarn to move said pawl to disenga e the teeth, and means operated by a continued 'move-' ment of the pawl afterits disengagement feeler-devioe to stop the 9. In a braiding-machine, the. combination .with the stopping-mechanismtherefor, of a feeler-device movable'to-cause the operation of v,the same, a rotatable supply-holder 'for" carrying the su1pp1y-cop, a detent to prevent the rotation 0 the supply-holder, a lever operated by the tension on the yarn tore? lease said detent, and a second lever adapted to move the feeler-device, said lever operated by' the detent, when the movement of the'latply-holder. i 10. In a braiding-machine, the combination with the stopping-mechanism therefor,

ter is continued after its release of the supof a feeler-device' for causing the operation ofthe same, a rotatable supply-holder for carrying the supply-cop, adetent adapted to engage the supply-holder to, preventits rotation, a lever controlled by the tension on the yarn and movable'in one directiont'o release the detent, said lever movable in the opposite direction to ioperatethe feeler-de-- vice, and a second lever operated by the continned movement or the detent after its re.-

lease' of 'the supply-holder to actuate the feeler-device.

11. In a braiding-machine, the combina-, tion with a bracket, of a rotatable supplyholder mounted thereon, a' detentto control the rotation of the supply-holder, a lever adapted to be moved in one direction to release the detent, a feeler-rod adapted to be engaged by .the lever. when the latter is moved in the opposite direction, and a 'second lever engaged by the detent to move the feeler-rod when the movement of said detent is continued beyond the releasing of thesupply-holder.

12. In a braiding-machine, the combinationwith a rotatable supply-holder, of'a detent for controlling the rotation of the same, a lever controlled by thetens'ion'on. the yarn detent,'a spring to move thelever in the opposite direction, a feeler-device operated by the lever when moved by the spring, and means to operate the feeler-device whenthe V direction to release the vmovement of the detent is continued after the-release of the supply-holder. 7

13. In a braiding-machine, the combination with the stopping-mechanism therefor,

tion with the stopping mechanism therefor,

of a supply-carrier 9 having a drop-wire 31 controlled by the tension on the yarn, a

feeler-lever for causing the operation of.

the stopping-mechanism, and a curved lever arranged to actuate said feeler-lever and adapted to be depressed by the engagement of the drop-wire riding over its curved edge.

15. In a braiding-machine,.the 'combination with a tilting feeler-lever 25, of a pivoted lever 30 adapted to engage the-lever 25 and formed with a cam face 32, a supply-- carrier 9 for the supply cop, and a dropwire 31 on said carrier adapted to ride over the cam face 32.to depress the lever 30 and tilt the lever 25. I p I 16. In a braiding-machine, the combina tion with the stopping mechanism therefor,

of a'feeler-lever 25 for actuating the same, a pivoted lever 30 formed with a cam face 32,

and means adapted to ride over said cam face to depress the lever 30 to move the lever 25.

In testimony whereof I ailix my signature in presence of-"two witnesses. v

SIMON W. WARDWELL.

Witnesses:

' ARTHUR A. ABMINGTON,

GRACE B. HOOKER.

copiesflnf this patent may be obtained tor-flve cents each, by addressing the commissioner of lateuts,

I Washington, D. G. i

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