US1237298A - Loom-shuttle. - Google Patents

Description

i. H. CARTER @L W.fH. SELL'EY. LOOM SHUTTLE.

APPLICATION FILED !AN.26.1915.

1,237,298.. PatenmdAug.21,1917. Y

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EDWARD H. oAnTERKAND WILLIAM H. snLLEY, or nnwnnnronn]iunssaorrusn'rrs.

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To all 'zo/0m t may concern:

Be it known that we, EDWARD H. CARTER and Wimmer H. SnLLnY, both citizens of the United States, and residents of New Bedford, in the county of Bristol and State of hassachusetts, have invented new anduse ful Improvements in Loom-Shuttles, of

whicl'ithe following is a specification.

. Our invention relates to threading devices `for loom shuttles, and is characterized by (amongother things) a threading memberl which is not'foperated by any mechanical train, and need have no spring to hold it in or return it to normalfposition.

In the drawings hereto annexed, which illustrate our invention and show what we believe to be the'best form thereof,

Figurel l `is a top plan view of part of a loom shuttle, embodying our improvements; Fi g2 is a longitudinal section of the loom shuttle; i

Fig. 3 is aview in perspective, on a large scale, showing the shuttle threading devices positions they occupy before threading;

Fig. L is a view similar to rig. 3, but

showing the parts in the position `fthey oc-.

cupy when' the shuttle is threaded; n

Fig. 5 `is a view in perspective, on large scale, of the finger plate and its plunger ca-tcl'r;v p i Fig. 6 is a vi ew in perspective of the plun gergand f i l Fig. 7 is a view in perspective of the plunger tube. Y

f 'The `body of the shuttle S is cut away no more `than has been the practice for many years,`in the standard shuttles.v A cavity K is formed to receive the linger plate K, and a narrowslot C leads from the cavity K "to the usual spaceprovided for the cop. A

round `hole is bored transversely through the shuttle body, .intersecting `the slot C7 to rey ceive the plunger tube Aand the porcelain f eyeB. A 'small metal pin P is inserted in the shuttlefbodyto serve as a stop for the plunger' H; and a porcelainfpin E is inserted in aismall. hole through the bottom of the shuttle adjacent to the side vof the slot C.

'It will be observed thatthe shuttle body is left intact at the sides, except for the transverse hole for theplungertube,y which does not detract from the strength and solidity of the shuttle body, any more than the indispensableeye hole formed yin old stylev shuttles.

The main factors in the threadlng devlce Speccation of Letters Patent. Patented 21, 19177.

i Application led January 26, 1915. Serial No. 4,545.'

.i are the plunger tube A, and plunger H. The

tube A is elliptical in cross section,l and has Alongitudinal ribs D" formed in its body.

P, the porcelain eyeB isithenxed lin the mouth of the hole. `The plunger H consists of a solid piece of metal, made elliptical in cross section so as to yslide in the tube A freely, but without turning on its axis. The plunger H carries an eXtenSiOnbar H in the end of which a thread-engaging notch H2 is cut. The over-alllength ofthe plunger H and extension .bar Hfis such that when the butt'of the plunger rests against the pin P, the notched Aend of kthe extension bar H will lie justy clear of the slot C', formed in the shuttle body (see Fig. l).

The plunger tube A istransversely slotted at C, so that when `the tubefis seated against the pin l), the slot'Cin the tube coincides with the slot Cr in the yshuttle body. The tube A has also a hole F, between the slot C and the eye B, and the shuttle bodyhas a hole F formed init,mahingcommunication from the cavity K to the hole F. `A slot Gr is cut in the tube A atr the bottom thereof, to receive the plunger-catch L. (See Fig. 2.) The ingerplate K is pivoted vat K2, and .lies in the cavityK.' `,The finger plate K is slotted at il, and is provided with an eXtension which terminates in the plunger catch L.. A spring M stressesthenger plate K upward and thusnormallyholds the plungercatch L in the slot Cr, inposition to retain the plunger H in placek at the inner end of the plunger tube A."

VViththe parts above enumerated in this rnormal position, the operation of threading .the shuttle is as follows z*- The operator, ,holding` the shuttle in his right hand with his left hand draws ythe I'illing from the cop VTinto the slot C, across .sharply to the left, checks it, and thereupon the inertia of the plunger H drives it to the eye end ofthe tube A, carrying with it the into the tube A from the running end asvr well as from the cop. T he channels formed kby the-ribs or corrugations D receive both:

pai'tsof the fillinggthe plunger Hi is therefore left as freeas-possible to carry the loop of filling toithe mouth of the eye B, when the operator picksit out witlrhis lefthand, andthe threading is done.- Then, still holding his righthforefingeron the finger plate K, the operator jerks theplunger HA back against the pink l), releases the finger plate R, allowing the spring M toreturn the plungery catch L to place in the: slot Gr.

After a little practice, any operator can thread hisshuttle'in much lessftime than is required for any otherniethod known to us. The threading devices abovey described obviouslysupersede the old and unsanitary method of sucking the filling through the shuttle eye. But' habit lisstrong, and the proverbial conservatismY of millhands will doubtless constrain many, who have become accustomed to theoldmethodof sucking the fillingthrough the shuttleeye, to ignore the mechanical threader and attempt to thread our improved shuttle by` sucking the filling throughfthe eye. For the purpose of defeating this, we provide the vent hole F and the air channel F between the slot' C and eye B. This air passageis made so large thatv all an operator can do is-tosuck air through the `holes F and F without' stirring the filling. After losing `time with a few such attempts, the operator' will handlethe improvedshuttle as he should.

rllhe porcelain pinE-takesthe turn of the filling' and protects the metal tube A from beingfcut by the fillingduring weaving.

rIfhe slot C is narrow, and when-the-fillingtendsto balloon, the sides of the slot C engage the filling, check ballooning, andproduce proper tension on the filling itself',

obviating the `necessity for*` providing shuttles (as is frequently the case) with two supplemental eyes for leading thefilling-` intol andoutof the shuttle.

The inner end of the porcelain eyeB serves as a stop for `the plunger H, limiting its outward throw. Theellipticalcross `section ofthe tube A is bestishown at D, Fig. 7.

The functions ofi the several operating' parts above described are asfollows:

VThat of the elliptic tube A, is to serve as a slideway for the plunger H, and prevent the plunger from turning on its longitudinal aXis.

That of the plunger H, is to furnish mass and inertiar wherewith to carry the fillingto the outer end of the shuttle eye, without the employment of any mechanical propelling parts, and to carry the plunger itself backy to normal position, without the eniployinent ofy anyl reverse-propelling parts, such asa spring and mechanical connections. That of.v the'catchL is to hold the plunger H in its normal resting placeat all times when the plunger is not required for shuttlethreading.

That of the nger. plate K is to remove the catch Lfromits plunger holding position-;..that of the spring M, to return and hold the catch L toy plunger holding position; that of the slot J, .to prevent the `finger of the operator from binding the filling while vdepressing the finger plate.

That of the slot C, to admit the 'filling-to the tube A so that the notch H2 of the eX- 'tension bar H will engage it.

That of the extension bar H with its notch H2, to engage and protrude the filling from the side of the shuttle.

Thatof the-slot C, to guide the filling into the slot C while threading, and to produce tensionr on the filling and prevent ballooning, while weaving is being done.

That of the porcelain pin E', to resist wear by the passageof the filling during weaving, and to protect the tube A against cutting by the filling.

That of the vent hole at F and F to baii'le ill-advised attempts to suck the filling through the eye Binthe old way.

What we claim and desire to secure by LettersPatent is:

In a threading device for loom shuttles, the combination of a plunger-tube placed transversely inzthe shuttle, opening at one side ofthe'shuttle, and provided with a slot for introducing filling thread, a movable slotted finger plate mounted in the shuttle adjacent tothe slot in the plunger-tube, a`

spring normally stressing the finger plate upward, and a plunger, freely movable in thetube and adapted by virtue of its mass alone to protrude the thread at the end ofv Copies of thisl patentfmay beiobtained forfveA cents each; by, addressing the 1Cominissione1 of Patents,-

` Washington, D. C.

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