US1025172A - Braiding-machine carrier. - Google Patents

Description

Tu all fwtom z'z may concern:

.miran STATE-'s PATENT ormon- -snvrou W. WARDWELL, on PROVIDENCE, nrionn ISLAND.

BnAIniNG-MAGHINE CARRIER.

arenaria.,

.Specification of'Letters Patent.

rateteanay '7, 1912.

Application and Ivfay 3,1'1909. serial No. 493,719.

. yarns from one bank or tier of yarn sup-'i plies pass thesupplies of another tier with yinterlacing actipn to form a braid.

' The purpose olf my invention is t0 provlde',

superlative sensitiveness of response to light `tension variations lwith capacity. tol control heavy fluctuations, combining the two re quirements inone structure that is staunch and durable.

The novel and meritorious featuresof my invention are fully disclosedinthe following specicationfand accompanying drawings which show respectively: Figure 1 is a side elevation of the carrier partly in sec-vv tion on line a-a of Fig. 2; Fig. 2, a plan view'looki'ng'y down in the direction of the arrowA in part section on line @Ze-d; Fig. 3 is an enlarged view, sectional on the line 251-?) in Fig. 2; Fig. 4L is a section. on the line c-c of, Fig.. 2; Fig. 5 is an enlarged sectional viewgon the line -a-a of Fig.y 2, showing the, Inode of securingthe supply holder .stem 9 to the base 8.

The body of the carrier'is'composed of a ldeck portion 2, and runner 3, preferably made in one piece "as shown. On the body. is mounted the yarn supply holder 1, which turns on the stud'., the latter having a shoulder 6 for an abutment or bearing to prevent end pla-57 'of the supply holder, and

projecting upward suiic'iently to engage and retain the cap or guard 7 over which travel theiyarns fromthe otherhanlr-.of supplies:

The sup lyliolder l is composed of a base 8- and a stem9 which carries blades or spurs v10 to rotatively secure the cop or bobbin, whichever is employedas a container for the yarn. The base-8 is, in form, a shallow, cy-

lindrical cup,having ratchet teeth 11 formed in thefinteriorsurfaceof itsrinn Engaging the ratchet teethis a detent .orgpaw1, .12 which may 'be koff-,any suitable construction, but preferably is formed 0f wire to the' appropriate shape, one extremitybent to'form vsupply holder fromerot'ation.

I the -trunnion 13*Figl. 4,'which enters a bearing 14'in the carrier body, and the other shaped' to' constitute the toe 15 or acting portion of the pawl; the pawl is so related,y

to the supply holder base as to rely on the '60 latter to holdit into its bearing' 121, without" special securing device.- A spring .16,coi'led about the trunnion 13 engages by one end the body of the p awl and by the other some fixed object inthe carrier, such as one .of the 6 5 abut-ments 17 ,thereby acting tolengage the toe 15 of the pawl with the ratchet-'teeth of the carrier base. The pawl is controlled'by the yarn in th following manner. From the abutments 17 70v there' rises a standard 19, made preferably of sheet metal in the -form'of'a narrow arch whose feet 20 are secured to lsaid abutments by screws 21, 21. Within .the abutments are formedbearings 22,- for a rocker 23, which 75 is held in 'saidbe'arings bythe feet 20 of the standard 19. This rocker 23, has a crank 24, and at each extremity an arm, one 25,-v to engage'the'pawl 12, and the other 26 for purposes of tension adjustment, as lwill be 8G.

described later. y Connected' with the crankV 24:, is.a finger or member 27-Fig. 1', which rises from the crank andwithin the arch of the standard 19, two guide pins V2828 through the'sides of the standard 19, mainv 8'5 4tain the member -27 in its upright position.

4The upper end ofthe member4 27 is hooked| l to receive the yarn from the'supply, which yarn passes through the thread wa s or slots. 30 inthe standard ,19, Under tension, 90

the; draft ofthe yarn sol passing through .the standard will suiilce to uphold the memf ber 27, amd when insufficient yarn is being delivered will draw it up so that the arm 25 willbe caused toengage'thepawl 12, mov- 95 ing it in the direction ofthe arrow B, Fig.` 2, and releasing the supply holder so it can turn and deliver yarn.A If the yarnf delivers too freely, the slacking of tension on the yarnwill canse the member 27 to drop, per- 1 00 mitting the pawl 12 to rengage the' teeth of the' supply holder -'base and restrain the The degreeV of tensionI on the-yarn is secured by establish-ed 'suitable resistance o f 105 the-member vl271:0 suspension.' Toithearm 26-i`scnnected a' spring Blwhich'is appro.

heavier-spring. for a lighter one or vice versa, but I prefer -topeft'ect such variations in the following manner. vThe spring 31 is anchored toan arm 32 which is preferably .further modified by substituting different springs as lbefore stated.

The mode of securing the cop holder stem 9 to the base 8 and particularly of securing the blades 10' is unique. A prerequisite of l the cop holder structure is lightness,-` and the use of an extremely light tube for't-he cop holder stem is incompatible with rigid securi'ng to the baseby such usual process as riveting, heading over, etc. Further, the

i thiny shell of a light tube is insufficient to properly hold the blades 10. There is therefore made a bushing of substantial wall which extends into the stem 9 suiciently to take the blades, and which is forced solidly into place. Cuts are then made through the shell of the stem- 9, into the bushing 35 and the blades 10 are forced solidly into the bushing 35 through the shell of the, stem 9. The stein 9 is then forced into the base 8, up to the shoulder` 36 of said stem and the sheTl of the stem is then riveted over, the bushing supporting the shell and securing solid contact with the base-Fig. 5.

The bushing 35 extends within the metal of the base so as to force the` shell of the stem solidly against the saine and aid to support the stress of riveting, preventing buckling and crimping of the shell.

In operation', the yarn y is drawn from the 'supply' (indicated by broken lines) through the slots 30 of the standard 19 and under the hooked upper end of the member 27. As the braiding operation progresses, the yarn is taken up and raises the member 27, vthereby causing action of the'rocker 23, through its arm 25, on the pawl 12, to release the supply holder that it may deliver yarn. Vhen the yarn is given off from the supply with such freedom as to cause the member 27 to drop, such action withdraws the arm 2 5 from the pawl -12, causing the latter to rengagethe supply holder and restrain it from delivering yarn. .v

The simplicity, lightness and efficacy of the foregoing construct-ion are of gieat moment in suoli niachines as that to which this. device applies, where the highest attainments of speed and eiliciency are secured ily through the creat-ion' of structuresspecially devised co-meet the unusual conditions imposed. Complicated mechanism and ponderous parts are here avoided, but strength and capacity for substantial endurance'are not sacrificed. The parts are well protected, immunel from destructive contact even with outside articles. The member 27, or yarn finger, is housed by the arched standard 19, the rocker 23 lies substantially flat on the surface of the carrier deck, in which is a clearance pocket 37 for the lower end of the yarn finger 27. An aperture 38 in the carrier deck permits the spring arm 26 of the rocker 23 to connect below the decl; with the tension spring 31 and its adjusting arm 32. The pawl 12 projects above the deck`between the cop holder base 8 and the standard 19, while an aperture 39 in the deck, permits it to extend below the same, under the edge of the rim 10 of the base 8 of the cop holderand upward, within said base to engage the internal teeth above referred to.

Tithout limiting myself to the preciso form of construction described, I claim:

l. In a tension device for braidercariiers, the combination with a. cop holder' having a cupped base and teeth in the interior surface of the rim of said base, of a spring actuated pawl to engage said teeth, a resiliently yielding yarn finger acted upon bythe yarn delivered by the cop holder and means intermediate the yarn i finger and; pawl whereby the latter is caused to engage or disengage the cop holder, with varying tension of said yarn.

2. In a. tension device for a braider cal"- rier, the combination with a cop holder having a cupped base and teeth in the interior, of the rim of said base, of a pawl to engage said teeth, a resiliently resisting varn finger acted-upon by the yarn delivered by the cop holder, means to vary the degree of said resistance and an intermediaryl between' the yarn finger and pawl whereby the latter is caused to engage or disengage the cop holder, with Vvarying tension of said yarn.

3. In a tension device for braidercariiers, the combination with the bodyof a braider carrier having a hub and a bearing, a pawl with a trunnionseated in said bearing, astud secured tothe hub and a cop holder with teeth to coact with the pawl, the base of said cop holder acting as a retainer to hold the pawl trunnion in its bearing.

4. In a tension device for braider carriers, the combination with the body of the carrier, a cop holder having teeth and a pawl to coact with the lteeth of the cop holder, of a yarn finger, a 'rocker on which me yarn finger is mounted, said rocker having an arm 26, a spring connected with said arm, and a swinging arm 32 to which the spring Iiot is anchored, which arm can loe secured in different positions by notches in the retainer 34 on thedeck of the carrierl-4 In a tension device' for braider ca rriers, the combination With `Ithe body of the, carrier, a cop holder having a cuppedbase and teeth Within the bas'e,`and a pawll eX- tending within the base and engaging said teeth, of an arched standard having guide pins, a rocker securedin position by the arch'nd having a crank Within' the-arch, a yarn ingei in said arch,`silstained'in vertical position by the guidef pins and means to var v the intensity of resistance to movement of the yarn iinger.v

6. In a tension device for braider can `riers, -the combination with the. body of a rocker and Within the arched standard controlledin position by the Jtension of' the yarn to engage or disengageihe pawl and cop holder.. l

7. In a tension device for braider car-l riers, the combination With-the body of a carrier, a cop holder thereon havinga cuppe base, and a pawl which acts Within said 'base' toi permit or prevent rotation of the cop holder, of an arched standardl having thread" Ways 30 to receive the yarn fromthe cop holder, ayarn finger Within the standard to. engage the yarn, and means coperative with said finger whereby varying tension ,of '.the

yarn may cause the pavvl to act. f 8. In a cop-holder for braider carriers,

the combination With a base, of a ytublar stem, a bushingin saidA stem, and radially disposed bladeslet into both the bushing vand the stem with their edges projecting beyond the periphery of the stem and adapted to serve as spurs to rotatably se-v cure the cop or bobbin on the stem.-

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

SIMON W. WARDWELL.

Witnesses:

GRACE W; BROWN c JAMES F. MCENERY.

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