US2079570A - Braiding carrier - Google Patents

Description

May 4, 1937. H. JANSSEN 2,079,570

' BRAIDING CARRIER Filed sept. 12,' 1934 2 sheets-sheet 1 l E--L 5l l 69 6J FLE--LL "L f 5! ZJ Z6 W//7 5555 7 V Z7 I .65 lF-:mmn:mmww/ 'f h i 7 '-"-`::::a\`-:::::s:-;.:\r"`*" 66 69 f6 f5 ,sz ag 547 70 ZJ w M Z5 5 5 j@ 72 if 5 55 l y 1 9 May 4, 1937.

BRAIDINGf CARRIER H. JANSSEN 2,079,570

Filed Sept. 12, 1954 2 Sheets-Sheet `2 Patented May 4, 1937 Y l 1 UNITED STATES PATENT OFFICE BRAIDING CARRIER `Henry Janssen, Wyomissing, Pa., assignor to vTextile Machine Works, Wyomissing, Pa., a

corporation of Pennsylvania Application September 12, 1934, Serial No. 743,683 21 Claims. (Cl. 96-13) My invention relates to carriers for textile ma-I Another object is to avoid adverse effects on chines and particularly to bobbin structures for the fabric from jerks of individual threads or controlling the tension of strands and the operastrands which may break or relax the tension tion of braiding machines. y sufficiently to operate the stop-motion lever, this 5 In machines for certain braiding work, as in result being obtained by providing a member to 5 braiding wireon underground cables, the weights absorb shocks to which the tension element is of the parts and the forces involved are relatively ordinarily subjected, and preferably by having great and, sincethe carriers are arranged in a such shock absorber also to assume the direct circle' about the braiding point and have the impact with the stop-motion lever instead of lo' strong metal wires under'f'considerable tension having these impacts communicated directly to -o laterally to the bobbin-supporting standards, the tension element as heretofore.

there is a natural tilting tendency of the stand- A further object of the invention is to proards. This tendency; when a bobbin standard is vide a device of the above indicated character of high comparedV to the area of the foot, causes simple and durablev construction, economical binding of the footplates,f upwardly and downmanufacture and effective operation.

wardly at opposite sides, respectively, of the race With these and other objects in view, which plate, andv of the heart piece radially-inwardly will become apparent from the following detailed against the plate, 'resulting in undue wear of the description of the illustrative embodiments of parts and inefficient operation. the invention shown in the accompanying draw- The required strand tension in such machines ings, my invention resides in the novel elements, 20

being relatively great, it has been considered features of construction, and arrangement of necessary in the past to employ tension weights, parts in cooperative relationship, as hereinafter which however, since they require certain permore particularly pointed out in the claims.

pendicuiar movement render the carriers of such In the drawings: 125 height as to unduly subject the carrier and the Figure 1 is a top plan View of a bobbin carrier 25 machine to the adverse effectsresulting from the for a braiding machine and embodying the inabove-mentioned tilting tendency. vention,

It accordingly, is among the objects of the in- Fig. 2 is a view, in side elevation, of the device vent-ion to reduce the tilting tendency of a carrier of Fig. l,

30 of the indicated character for application such as Fig. 3 is a View, taken at right angles to Fig. 2, 30

that above mentioned, by reducing the height of parts having been broken away, the standard, this result being attained by the Fig. 4 is a slightly enlarged view taken subelimination o-f the ltensionA weight and itsI apstantially along the line 4-4 of Fig. 2,

purtenant parts, and by certain positive features Fig. 5 is a detail view, taken substantially along '35 of construction as will herein appear; the emthe line 5--5 of Fig. 3, 35 ployment oi a spring in association with a carrier Fig. 6 is a detail view, taken substantially along for wire-braiding work, and particularly in view the line 6-6 0f Fig. 4, of the aim to maintain the carrier of reduced Fig. '7 is an enlarged view, similar to a portion height,'invo1ving certain novelfeatures of bobbin of Fig. 2, of the structure thereof, parts being u construction, as for actuating a stop-motion lever in section and others having been broken away, 4o

and rendering the bobb-in readily renewable. Fig. 8 is a view similar to Fig. 7, showing parts Another object of the invention is to provide in different positions. a carrier structure which, by changing it, if nec- Fig. 9 is a view taken substantially along the essary, as to strength, size or other features not line 9-9 of Fig. 8, parts having been broken 5 departing from its basic features, shall be adapted away 45 to control the tension of a metal wire, a fine silk Fig. 10 illustrates a modified form of the inthread or any other braidable strand in a more vention, in a view similar to a portion of Fig. 7, uniform manner. that is, inV which, when the Fig. l1 is a view, taken substantially along the tension is above'that degree of slack which will line II--II of Fig. 10, and

,30 stop the machine but which may vary over a Fig. 12 is a view, taken substantially along the 50 wide range, the action ofthe spring on the conline I2--l2 of Fig. 10.

stantly feeding strand, which must be alternately In practicing the invention, in a preferred connected to and released from `the spring, shall form not intended as a limitation upon any of the be substantially as smooth as though the spring various novel features or combinations thereof,

55 were connected to the strand at all times. a stop-motion member or lever is movably 55 mounted on a standard and normally positioned or biased away from stopping position. A strandsupporting bobbin is rotatably mounted on the standard, upon which is also mounted a mechanism or means including a structure that is biased, as by a spring, toward position to actuate the stop-motion lever to stop the machine. 'Ihis mechanism is also operative, as by a brake or clutch, for holding and releasing relation to the bobbin for movement therewith, and relative thereto, responsive to variations in tension on the strand and operates in accordance with other new features, such as acting as a lock to hold certain parts of the bobbin together.

Referring to Figs. 1 to 9, inclusive, the structure thereof comprises a base or support l5 in-4 cluding a pin i6, for engaging a drive gear, carrier-foot plates I1 having a heart piece I9 therebetween for cooperation with usual intersecting annular sinusoidal raceways of a braiding machine, a double-arm standard 22 having arms 23 and 24 and a top portion 26 for supporting a yarn-guide eyelet 21 and rendering the standard of inverted substantially U-shape on the carrier foot, and upstanding projections 29 for supporting a pin 39.

A lever 32, pivoted of substantially strap-loop shape having a midand a narrow end 35 mounted on the pin 38 between the projections 29. A helical spring 31, Fig. 9, about the pin 30, has one end 38 biased upwardly against the lever 32 and the other end 39 biased downwardly against the top carrierfoot plate l1, thus biasing the lever clockwise, or upwardly, as viewed in Figs. 2, 7 and 8.

A boss 42 on the standard arm 24 has a small bore 43 and forked portions 44 inside the arm providing slots 45. A boss 41, on the arm 23, has a large bore 48 and outer end slots 49. An axle 59, having a large body shank section 5l Yfor the bore 48 and extending nearly to the boss 42, and a small leading-end shank section 53 for the small bore 43 of the boss 42, also has a rounded end 54 on its small shank section to facilitate its insertion into the standard arms, and to constitute a reverse push button for removing the axle, and carries a transverse pin 56 for position in the slots 49.

Asseen in Figs. 2 and 3, a latch member 58, constructed of strap metal, is bent on its flat sides to be of substantially U-shape, Fig. 3, thereby providing one arm 59 acting as a stop against the boss 41 and an arm 60 for movement between positions over and aside the adjacent end of the axle 58 about a pivot pin 62 on the standard arm wise, as viewed in Fig. 2, to a position in which the axle is held in place.

A bobbin structure 64.comprises an outer spool portion including an axial cylindrical wall 65, on a strand 66 is wound, iianges Gland 68, projecting radially inwardly from the wall 65, and spool and flanges 69 and 10 projecting radially outwardly from the vcylinder 65, The larlge 68 is journalled on a flange 12 of a bobbin core member or sleeve 13 having clutch projections 14 for position in the slots 45, between the forks of the portion 44 on the -standard arm 24, to prevent turning of the sleeve 13.

Another bobbin core member or sleeve 15 has a flange 16 fitting the ange 61 for journal movement relative thereto and movement therewith, depending upon whether the bobbin and the sleeve are released or connected by a brake device, as will appear. 'I'he sleeve 15 has a portion telescoped into the sleeve 13 and held axially thereto, but permitted rotation relative thereto, as by a split ring 1 A helical spring 8D surrounds the core members 13 and 15 and is held at s opposite ends to the ilanges 12 and 16, respectwst of the spring 80, revolution.

The spool-end flange 69 has an axially outstanding brake band or ratchet annulus 84 on its outer side, thereby rendering the spool-end at that side of counter-sunkor depressed character; the annulus 84 having a radially-inwardly-opening groove 85of axial V-section providing clutching, wedging, braking or ratcheting surfaces. By moving the latch member 58, against the action of the spring 63, to move the arm 60 from position opposite the adjacent end of the axle 50, and by pressing against the rounded end 54 of the axle, the bobbin assembly may be removed from the standard as a unit, in which the core parts, including the sleeve 13 and 15 and parts thereon, are locked axially to the outer spool portions. By disconnectlng a spring 98, a clutch or brakethe brake shoe entirely out of the groove 85, so that the outer and core bobbin parts may be separated.

As better seen in Figs. 7 and 8, the sleeve 15 has three substantially radial arms 81, 88 and 89 disposed in closely-related parallel plane relation tol the adjacent end of the bobbin; the arm 81 pivotally supporting, as by a pin 90, a brake-shoe arm or lever 92 having, at one end, or on a short arm thereof, a clutch member, brake shoe or detent portion 93 of substantially V-section conforming to the groove 85, and, at its other end, or on its longer arm, a hook 95 and a stop portion 96. A tension spring 98, connected between the hook 95 on the lever 92 and a similar hook 99 on the arm 88 biases the brake shoe 93 toward the groove 85 for intermittent braking coaction therewith.

The structure including .the sleeve 15 and the arms 81, 88 and 89 is biased counterclockwise, in the direction of an arrow A, as viewed in Fig. 8, by the spring inside the bobbin, such that it tends to assume the position wherein the arm thereof engages a cooperating stop or lug |00 on the standard arm 23. In this position, the spring 98, by the long leverage of the arm 92, Vengages the brake shoe 93 to the sides of the V-groove to effectively grip the latter so that, when tension is exerted on the strand 66, in feedaction of the spring 80. At approximately the end of a revolution, during which the spring 89 becomes fully wound, the stop 96 engages the a brake to reduce stop |00, as seen :inFi-g. T; whereupon arms 89 ,and 92 move relative to each other-against vthe action of the spring 98 to release the brake shoe 93 from the brake 85, toallow the spool to` rotate freely on the flanges 13 and 15, and to thereby, permit more than the single turn ofthestrand 66, thus unwound, to feed oi the bobbin. The spring 80, being thus momentarily relieved of the strand tension, tends to return the inner or brake-shoe-carryingparts to starting position free from the outer spool parts, whereupon, after a certain returning, ,movement the spring 98 again acts to engage the brake, shoe to the brake. In this way, andv by'intermittent repetition of this action, thestrand is continuously fed from the outer spool, which also continuously rotates, but does so by so manyand so rapidly repeated connections to, and disconnections from, the bobbin core and'springparts, as toobtain. nearly the effect` o-f having the strand vcontinuously spring tensioned. )This is, in a `fine degree, different from a pawl and ratchet device, vasin the modified form of 'the invention shown in Figs. 10, l1 andA 12, in that in the latter, the strand is released from and reengaged Ato the spring in .uniform steps, each form having its uses Viand applications, but the wedge-brake form above described operating instantaneously at any part in the bobbin movement irrespective of ratchet steps. l y

When the strand breaks, orrelaxes its tension to suiiicient degree, the parts are returned to the position of Fig. 8 wherein the arm 89 not Aonly engages the stop but also vmoves the lever 32 downwardly, spring 31,'to cause one of the wings 34 to actuate the stop-motion lever. ,i 'f

, It will readily be appreciated that the members .05 `and ,93v effect and operate asa clutch mechanism for intermittently connecting and disconnecting the vtensioning spring 80 to and from the bobbin, inasmuch as this action may take place at` anyr instant and does not require that the associated elements be moved to predetermined positions ,in order to effect proper operation thereof. VThe clutch elements 85 and 93 function to anchor the Ybobbin tothe tensioning spring 80 during rotation of the bobbin from the position sho-wn in Fig. 8 until thestop portion 96 abuts the stop |00', whereupon the clutch member 93 is disengaged from the annular clutching surface 85 and free unwinding rota.- tion of the bobbin is permitted. Immediately subsequent to the disengaging of the clutch member 93 from the annular ange 85, the -aevtion of the spring 80 rotates the sleeve 'l5 in the direction of the arrow shown in Fig. 8,*thus the member 96 is moved clearo the stop |00,-where- Yupon the clutch element 93 is moved into clutching `engagement with the annular vclutchingsurface 85 throughttheaaction` ofv the spring 98. Thus the entire device serves as a tensioning structure for the. yarn fed therefrom, and includes elements which successively operate:` as

the rotative speed of the bobbin; as a clutch topengage `the core structure to the bobbin;` and as a detent to anchor the core structure to the bobbin to prevent relativemovement therebetween; t, In the modification of the invention shown in Figs. 10, 11 and 12, aside from minor differences of size and form, the parts are similar to those above described, except that, lin the place of the brake annulus having the V--groove 85, there is provided a ratchet wheel |02 having `internal ||0, similar to the stop the -sleeve end4|08, like the arm 89, is for en,-

against the action of Aits teeth,:..and;..in'theiplaces of the' brake-shoe arm 'on which channeled sides |08 of the pawl |03 ,slide in a slot between' the edges |01; the pawl 'also-havin'g'a portion |09 for engagement, at

the end of its clockwise movement, with a stop |00. A portion ||2 on gagement, at-the end of its counterclockwise movement, with the stop motion lever 32 and the stop |I0. A spring H4, between the pawl ,|031 and the sleeve end |06, corresponds to the spring,98.gThe ratchetwheel |02 is secured to the bobbin cylinder,-as by screws H5, and has `a flange ||1 corresponding to the flange 69. Further,`y the axle extends through the bobbin in theopposite direction, as indicated by the position of the small shank` portion 53 and the rounded end -54- adjacent to the ratchet.

This'device operates similarly to the form` rst described, except that the bobbin is released by, vand moves relative tothe brake or ratchet in uniform steps.

, 4Oi course .the improvements specifically shown andidescribedfby which I obtain the above results, 'caribe changed and modified in .various ways Withoutdeparting from the scope of the invention 'herein disclosed and hereinafter claimed.

like, comprising a standard, and a structure mounted on the standard including a spool portion for rotatablyholding a coiled strand, and

a spring for operation between the standard and said spool portion to bias the latter in strandwinding direction thereon toward an initial position.

2. -A carrier -for a braiding machine and the like, ,comprising a standard, `and a composite bobbin structure including a holding portion engageable with the standard to prevent rotation thereon, a portion rotatable relative to said holding portion, a spring connected between` said holding and said rotatable portions, a spool portion supported by and movable relative to said holding and rotatable portions, and means intermediate said spool and rotatable portions for controlling relative movement therebetween.

3. Acarrier for abraiding machine and the like, comprising a standard, and a structure mountedon the standard including a spool portion for rotatably holding a coiled strand, a spring for operation between the standard and said spool portion to bias the latter in strandwinding direction thereon toward an initial position, and a portion constituting a complete enclosure for said spring. t v

4. A carrier for abraiding machine and the like comprising a standard, a bobbin structure including a spool portion rotatably mounted on thestandard, and a spring encased by said bobbin structure and connected between the standard and said spool portion for biasing the latter in-strand-winding direction thereon toward an initial position.

5.1A carrier for braiding machines and the like, comprising a bobbin having relatively rotatable core and spool portions, and cooperating complemental,interfltting brake elements on the core and spool portionsrespectively, and operating to control movement of said spool portion relative to said core portion.

6. A Carrier for like, comprising an braidingv machines and the upright frame including: horicoaction of said elements.

8. A carrier for a braiding-machine and-the like, comprising a'standard, a bobbinrrotatably mounted on the standard and carrying a braking annulus of substantially wedge-section, a cooperating rotatable brake-shoe element having a ycomplementary section -for v'vedge-brakingA `co-v Vmounted on the standard and carrying a brak:- ing annulus of radially-inwardly extendingfsubstantially V-section, a cooperating rotatable brake-shoe element having a complementary section for radially-outward wedge-braking coaction with' said braking annulus, and means `associated vWith said brake-shoe elementfor bias"- `ing said bobbin in thread-rewinding Adirection.

10. A carrier for a braiding machine. and the like, comprising a standard,-andfajcomposite 'bobbin structure detachably mounted-as a 'unit on the standardv including a holding portion engageable with the standard to prevent-{rotation thereon, a portion rotatable relative to said holding portion, a spring connected between said "511. A carrier fora braiding machine andthe like comprising a bobbin carrying anfannular braldng element, a brake-shoe support` mounted a long arm for actuating the brake shoe.'r

12. A carrier for a braiding machine and the like comprising a standard having a stop portion, a bobbin structure including members braking position. y Y

13. A carrier for a braiding machine and the like comprising a standard including oppositelydisposed uprights having alined transverse hollow bosses, one of which has a shoulder, a'bobbin including sectionswhaving coacting portions limiting relative rotation thereof, said sections having spool-bearing porward the bobbin,

tions, .ahellcal spring'surrounding the core and connected between said sections, said sections core and said bosses.

14. A carrierv fora braiding machine and the like,- comprising a standard, a stop-motion operating lever movably mounted on the standard and normally disposed away from stopping posupporting l bobbin rotatably mounted onthe'standard including an angular flange having an internal clutching surface, and

the bobbin tension.

-15. A carrier for a braiding machine and the like, comprising astandard, a stop-motion operating lever movably mounted on and normally disposed in inoperative postlon, a

to its support againstits 18'l A carrier for a braiding machine and the like, comprisinga standard, a member movably mounted on the standard for stopping themachine and normally disposed away from stopping position, a bobbin rotatably mounted on the annular series of ratchet teeth, a pawl support mounted for movement on the standard co-axially with and relative to the bobbin, a spring biasing said support in the re- Windingdirection of the bobbintowar-d position engaging sald stop member, a paWl reciprocably mounted on said support for engaging said teeth amat-'1o to move with the bobbin and "to move th bobbin in rewinding direction, a spring between the paWl and its support biasing the pawl to ratchetengaging position, and means for moving the pawl relative to its support against its spring to release the ratchet and the bobbin.

19. A carrier for a braiding machine and the like comprising a standard, a member movably mounted on the standard for stopping the machine and biased away from stopping position, a bobbin rotatably mounted on the standard carrying a portion having annularly disposed holding portions, an arm pivotally mounted on the standard about the axis of the bobbin, a lug on the standard, a spring connected between the standard and said arm biasing the arm to position against said machine-stopping member to stop the machine, an element movably mounted on said arm for holding relation to said annularly disposed holding portions, and a spring between the arm and the element biasing the element to said holding relation, said element being positioned for engagement with said lug to release the element from the bobbin.

20. A carrier for a braiding-machine and the like, comprising a standard having a bobbinbearing portion, a support portion and a lug, a stop-motion member normally mounted on said support portion and normally disposed in inoperative position, a bobbin core structure comprising longitudinal sections having limited relative movement about the core axis, one of said core sections being held by the standard against turning, a spring connected between said core sections, 'means detachably mounting said core structure on said bearing portion, a bobbin journalled on said core structure and having annularly arranged braking portions, a brake support fixed to the movable core section for engagement with said stop-motion member, and a brake shoe mounted on said brake support biased for braking cooperation with said bobbin braking portions and positioned for engagement with said lug to release the brake.

-21. A carrier for a braiding-machine and the like, comprising an upright frame including horiaontal side bosses, a pivot support on the frame carrier foot, a stop-motion member pivoted on said support, a spring biasing said member upwardly, a bobbin core structure comprising longitudinal sections relatively movable about the core axis but engageable to limit such movement and having axially-spaced anges, one of said core sections being operatively held by one of said bosses, a helical spring surrounding said core section connected between said sections, a spindle removably disposed longitudinally through said core sections and mounted in said bosses, a bobbin journalled on said flanges and having an annular radially-inwardly, opening sidebraking groove of V-section, an arm fixed to the vmovable core portion for engagement with said stop-motion member. a lug on the frame, a brake-shoe lever pivoted on said arm in position to engage said lug and having a portion conforming to said groove, and a spring betweenthe arm and the lever biasing the shoe toward braking position.

HENRY JANSSEN.

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