US1709720A - Loom shuttle - Google Patents

Description

Patented Apr, 16, P323 entree stares ARTHUR emerims'or PAWTUCKET, arronn ISLAND, ASSIGNOR or ONY'E-IHAYLF To 7 ROBERT C. nnn'rz or rawrucrznr, RHODE rsnaun.

V LOOM snu'r'rnn.

Application 'iiled January 4, 1928.. SeriarNo. 244,439. I

My invention relates to .a loom shuttle, and more'particularlyto a loom shuttle arranged to carry a plurality of quills for the purpose'ot feeding avweft of a plurality of threads, as the weaving progresses.

Considerable annoyance has hitherto been caused by the breaking of one of thethreads while the weaving progressed to a greater or lesser extent with the other thread, thereby producing a defectin the fabric. This has happened because of thedifiiculty on the part ofthe operator to observe at a glance whether one or both ofthe threads were intact.

; 2.0 .thus calling prompt attention to the fact of the breakage and preventing the: weaving, of one of the threads independently of its companion-thread; I

; A, more specificobject isto provide auto-- iv matic thread severing means of the above kind wh ich, is extremely 'slmple and du able in constructionas well asfefiicient in operat on A practical embodimentof invention .30 is illustrated in the accompanying drawing,

inwhichz" i h I Figure 1 is a top plan viewoi a two-quill shuttle, showing the parts in theyposition which they assume when the'shuttle 1s in 7 operation shuttle shown in Figure 1;

gitudinal section takenupon line 3 3 of Figure 1; and w Figure 4 is a view similar to Figure, 8 with the parts 'shiftedjafter the breakage of a eompanion'thread has of the other thread.

5 designates the "shuttle, the same having the usual quill cavity 6. In this cavityiare arranged two quills 7 and "7" in the usual ,manner, the threads from said quills being sidewallsthereof," Withinuthe space between the free ends of -thecquills 7 and 7 a and arranged inwardly of the eyeletss and 8 is arranged a suitable thread-tension .de

The primary object of present inven- F'gure 2 islajs'ide elevational view of the permitted severing v i Referring more'infdetail to the drawing,

thejeyelets 8 and 8 ,'arrange d in one of the vice 9 which cooperates with: the threads ofboth ofthe quills. V h The eyelets Sand 8 -are preferably although not necessarily, disposed in spaced and-10 are respectively located at opposite sides of the verticalfplane intersecting the eyelets 8 and 8 ,,and the knives llfand ll with their adjacentfree ends arranged to} 7 project toward each other from these pivots swing across the openings'of the 'eyeletsS and 8 atthe inner ends .of the latter. Rigf idly I fastened at, oneend, by soldering for the like as at 12, to the knife 11 inwardly of itspivot 10 is an, arm 13 whichij'has' its "lower end directed; toward the knife; ll

and formed with a terminal eye 14 adapted toregister with, the eyelet Stwhen the knife 11 isdisposed with its free inner end directly above the eyelet 8 as shown in Figure 3; The eye 14% forins a "thread guide through which the thread of the ouiilliiis passed,

and it ,will thus be seen that when this thread is placedunder'tension and the shuttleis in operation, the eye l l'will be mainc tained in registry with the eyelet 8 so as to hold the knife ll elevated with its freeinner end' disposed above the eyelet 18, In W alike manne'n an arm 13 is rigidlylsecured by solderingorthelike.as at 12 to the knife ll -xoutfwardly of its pivot 1,0,said arm i 13* extendingupwardlyrand toward thefr'ee Figu re 3 is an. enlarged fragmentary 1on with its free inner .e'nd disposed directly above the, eyeletv8 as'is also clearly shown in Figure 3. vfree upper end of the arm l3" is provided-with a'terminal eyelet through which the thread from the quill 7 is adapted to be passed, and it "will thusbe seen that whenthe thread of the quill 7 r is; under tension and the: shuttle is in oper atio'n, the l ltwilljbe maintained in reg-1 istry with the eyelet 8 and the knife .11 will be held positioned with itsfi'ree inner end above the eyeletBf. Inorderto insure efl'ective engagement of theiknives 11 and l1 with and cutting of the threads, the free innerend portions, 'oi' saidknives are .pro-v vidcd 'in their lower edges with V -s haped mam 1 FFEQE;

notches 15, the walls of which are sharpened to form cutting edges. ,Undue upward swinging movement of'the knives 11 and 11 may be prevented by anysuitable means such'as outwardly projecting lugs or lingers 16 provided on the pivoted ends of the knives, and stop pins 17 projecting inwardly V tle below and 3 arms areindicated in fulllines in Figure 3,

' ferent arrangements and-mountings of the what is at present deemed to be the preferred I and they lower by gravity from. their normal positions as shown in Figureflt, only when the eyes l and 14 are permitted to lower out of registry with the'eyeletsS and 8?. This happens only when the eyes are freed, from their positions in registry ,with the eyelets 8 and 8, by the breaking of the threads. l

When, for any cause, one of the threads breaks, as, for example, the thread from the quill 7 it will immediately relieve the eye 14:, and permit the knife 11 to lower by gravity and sever the thread from the quill 7 passing through the eye 14 In the same manner, if the thread from the quill 7 should break it will relieve the eye 14 and thereby permit the knife 11 to lower by gravity and sever the thread from the quill 7 which passes through the eye 14.

The above arrangement'thus provides for promptly severing the companion thread when for any reason one of the threads breaks, thus calling the operators attention to the defect and enabling him to correct it before serious damage is done. I

11 am aware that the invention is.susceptible' of many modifications and changes within the scope of the appended claims,

such as the use of actuating springs for causlng the cutting movement of the knives,

the use of various forms of knives, and difknives. "Such minor changes are accordingly within" the splrlt and scope of the invention, although I have herein described embodiment thereof; v

What I claim as new is i under the 'control of each of the threads and actuated for cutting a companion thread when one of the threads breaks.

V 2. A shuttle provided with means for supplying separate threads, and knives movable across the paths of said threads, said-knives being under control of the threads andactu- '60} j of the threads breaks,

ated to sever a companion thread when one 3 A shuttle provided with means for supplying separate threads and having separate eyelets in a side wall thereof through which the respective threads are adapted to be'fed,

quills for supplying separate threads, knives movable across the paths of the threads and thread guides arranged for placing the said movable knives under the control of- .the

threads from the quills, the knife corre sponding to each quill being under the control of the thread from the companion quill whereby the breaking of the thread-from one of the quills will release the knife corresponding to the other quill to sever its thread.

5. Afishuttle provided with independent quills, means for conducting the threads from the quills to separate outlets from the shuttle, knives mounted between the inner across the paths of said'threads, said knives ends of the quills to freely lower by gravity being provided with eyes adapted to be l0-j cated in position to receive the threads there through as they extend from the quills to the exterior of the shuttle, the eye of the knife. corresponding to each of the quills being adapted to be positioned to receive the thread leading from the opposite quill whereby. the releasing of one of the eyes by the breaking of a thread fromone of the quills will permit the knife ofthe released eye to lower and sever the thread from the other quill.

, 6. A shuttle provided with independent quills, means for conducting the threads from the quills toseparate outlets from the shuttle, knives mounted between the inner. ends of the quills to freely lower-by gravity across the paths of said threads, said knives being provided with eyes adapted to'be 10- J cated in position to receive the threads therethrough as they extend from the quills to the exterior of the shuttle, the eye of the knife corresponding to each ofqthe'quill's being adapted to be positioned to receive the thread leading fromfthe opposite quill whereby the releasing of one of the eyes by the breaking of a thread from oneiof vthe 1. A shuttle provided with means for sup- I plying separate threads, and separate means quills will permit the knife ofthe released eye to lower and sever the, thread from the other quill, said outletsembodying vertically spaced eyelets in a side wall of the shuttle,

said knives beingpivoted on the inner side of said. side walls.

7. A shuttle provided independent quills, means for conducting the threads from the quills to separate outlets from the shuttle, knives mounted between the inner ends of the quills to freely'lower by gravity across the paths of said threads, said knives being provided with eyes adapted to be 10- cated' in position to receive the threads therethrough as they extend from the quills to the exterior of the shuttle, the eye of the knife corresponding to each of the quills being adapted to be positioned to'receive the three-d leading from the opposite quill whereby the releasing of one of the eyes by the breaking of a thread from one of the other quill, said outlets embodyingverti cally spaced eyelets on a side Wall of the O shuttle, said knives being pivoted in the inner side of said'sid'e Wells, and means to limit the upward movement ofthe knives.

In testimony whereof I afliX-my signature.

A THUR] GINoRAs;

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