US1440505A - Friction for shuttles - Google Patents

Description

LMQSQS.

Jan. 2, 1923.

F. H. smsow. FRICTION FOR SHUTTLES.

2 SHEETS SHEET 2.

FILED MAY 25.1921.

' I NVEN TOR.

Patented Jan. 2, 19.

FRANK EST-E1593, m mes eess esvsms ASS QB we" 1- mm & SHUTTLE r rsi v mss Be s, leer e 'Q B Q LAT N QFi H E ISLAND.

- m me m Siemecation.

My invention is an improvement in 'shut s; 'pert w l of h hreading ype for ef ep e hing'l ms-1 i P ticiilarly edapted for those having athreed di recting guide plate wliich extends froin the p n pin direei nme he h eats chamber, and which terminates at the back in hr ed z teining s d hoq si r those shown in patentsto Snow, ofJune 29, 1920, No. 13 M534, and of February '22, 1921, No. 1,369,306.-

My invention" relates particulerly to .a friction, preferably of felt, fibre or similar t i ut hi h may be 9 eed .1 m tal and which is preferably renewable.

T s r c n i c'et hs the y rruns under it instead of over it',' and preferably at the back of the shuttle. block position to hold the yarn down at the back.

Its purpose is not onlyto serve'as'a friction to retard the yarn'es it runs from the b n, ut it a s e es to red the ballooning of the yarn. In m preferred form of device there is an overhead friction at the back of the shuttle .19 1 and a friction underneath 't' front thereof.

I 'find' ha y verhead fr tion an be t n e tly u edin; s ngle Part of, an eye block or threading block made of meet-whi e n n erte entered in a.

suitable recess in a'woodei shlittle'iri a Well .known nannen but I may use overheed r on w th' y yr b she ils- In h r wi s Fi o a utt e h t-br edin type f r aut a c 1. 011 thmy P f rre i fo m hutt h tion therein.

Figs. "2, 3, 4 and 5 are views of my preferred form of shuttle block or eye block reinoved from the shuttle and on it larger scale than Fig. 1, being as follows.

Fig. 2 is from the left.

Fig. 3 is from the front.

- r d 'lf n' h hread ng eiii e 'i a Plan w- Fig 6 s a ie rom the ht, part in ectio of "a lightly mo ified the i g block with a different type of front frictiojn.

l ig. View from the back'of slight medifi eeeej o m f TQ Q ppl ed. t my preferred form of threeding'blocki showing friction a lied to ash htl mi difieol forni o'f tlirfidiihg block. g I y Fig. 9 is a viewfrorn the right of the. threading block with friction of iny pre- .ferred type in a different location.

" Fig. l'O 'is a plan View of a shuttle with no e y e of y thr d, kew n my fri i n appli d e e Fig. ll is a-view from the back showing my friction epplied t still another type of threader. 1 i

Fig. 12 is a View from the back of a h d n ble k, ofthe em y Shd i n Fig. 10, niy friction in place.

' is a shiittle of the self-threading type fo automa ic om hav n the u u ebb chamber lQfor the bobbin froinwhich the thread A is nnwound, and 12 is the threading chamber which extends forward in continnation bobbin chamber 10. 13 is the delivery passage which extends still farthg represents sh ttle eye in the Wood, and th s onn cts w h the h e d n c em er thro g th l t 15 ut way r ihed liVery'pessage 13. Siepxesentsthe metal ip of th shut l "F eiir 'ini e mstelli t reedi l c which s e n o 'a fee n t e we O the huttl nd i h wn e fi e her in by in h bka ell 'knb n h n f- F the pro ection -34 which Fig.8 is a sectional as frond the back- "My device is more particularly useful in connection with a certgiin t'yg'pe of threading block, such as shown Iat'F in: Figs. 1. to 9, in which there is a thread directing guide plete G which extends from the top thereof and from the topside of the shuttle, down and out at 22 into the threading chamber 12, or that part of the threading chamber, indiwith a portion-80 which overlaps the bottom part of the guide hook 24. The metalat l5 also, extends upward to a point somewhat outside the guide hook to form a locking guide. There isalso a horn 32 and a front thread pin33 of well known- "form.

The-special noyelfeat'ure of mydevice is the friction member L, which extends Into the threading chamber at a point above the 7 lower end of guide hook 24.- This friction member L is passed through a hole 40 in the wall of threading block F, and is'shown as extending to and resting against the inner i This side ot'guide hook 24;as clearly shown'in Fig. 4. i

fibre but may be oi? wood or any other material, even metal, provided it is-in a posit-ion so that the yarn will run under it and,

preferably, provided'it is at the back part proximate the thread directing guide hook.

As shown in Fig. 2, I prefer to use another friction below and in front of plug L,

shown as a similar plug 85 of felt, fibre, or other suitable material, which is passed through a holejBd in block F. The yarn A will therefore pass under friction L and I over friction 85.

As shown in Fig. 6, I mayuse a sloping guide plate 50 having a front thread trapping rim 52, and a hack thread retaining guide hook 51'at the back, having the usual pin 54- and a horn 53 which has its bottom end slightly cut oil, in connect-ion with an overhead friction 55 at. theback,'similar in all respects to L, but at the front a flat pad 01 through which pin 54 passes to hold it in place, Where a very substantial drag .or friction is re uired, it can be accomplished byusing a to t plug 55 and a fiat felt friction 56, between both of which the yarn A must pass. v

In Fig. 7 I show an eye block 60 having a portion which extends down and over into the threading chamber at 61 and having the usual thread pin'62. Through the having a longitudinal threading chamber,

side wall of the. block is a hole or; and through this hole is passed a headed pin '63, the end of which also enters a hole 65 in hook 61. This pin 63 passesthrough a core This threading block,

friction is preferably of felt or felt or other similar material 56 Latc es 71 and preferably. above the lower end thereof, and. also passes through the wood of the shuttle. v

' In Fig. 9,1 show a block similar in all respects' to that shown in Fig. 2 and Fig. 5 exceptthat the hole 79' for overhead friction L is bored through the wall of the eye block at a point which is farther forward with reference to guide hook 24. The friction L and, hook 24 barely touch and, in fact, as shownby the dotted circle 7, the friction plug L might be located even farther forward, a though I do not consider this desirable.' i

As shown in Fig. 11, the eye block may have a portion 90 which extends down and over into the threading chamber to a much less'degree than shown in the other views.

and a friction member 92 passed through a hole 93 in a wall9 i in such position as to be over the yarn A as it passes through.

around under the guide to the position shown at A in Fig.112 where the friction will I be in operation and overhead.

It is obvious that my friction may be glued in, position instead of being passed through a hole in the wall of the threading block.

I claim: I

1. The combination with a shuttle threader, having a longitudinal threading chamber and a thread directing guide plate which'extends down'and out from the top into such threading chamber, a thread directing guide hook which extends from and under the back part of the thread directing guide plate, and a locking guide which extends into the threading chamber so as to overlap the guide hook, of a friction member which extends horizontally into the threading chamber in front ofthe back edge and above the lower end of said'guide hook tothe inner surface a thread directing guide plate which extends down and out from the top into-suchlthreading .lchamoer, and a thread retaining guide hook which extends from and under the back part of the thread directing guide plate, of

a friction member which extends horizontally into the threading chamber in front of the back edge and above the lower end of said guide hook to the inner surface of said guide hook.

3. The combination with a shuttle threader,

having a longitudinal threading chamber,

a thread directing guide plate which extends down and out from the top into said threading chamber, and a thread retaining guide hook which extends from and under the back part of the thread directing guide plate, of a friction member .whichextends into the threading chamber at a point above the lower end of said guide hook and above the yarn as it unwinds from the bobbin to the lnner surface of said guide hook.

4. In a shuttle, the combination of an eye block having at the back a portion which extends down and over into a threading chamber, with. a friction member which passes through the wall of said eye block at a point opposite to said portion and above the lower end-thereof to the inner surface of said portion which extends down and over into said threading chamber.

5. In a shuttle, the combination of an eye block having a portion which extends down' and over into a threading chamber, with a friction member which passes through the wall of said eye block at a point above the lower end thereof and above the yarn as it passes through the threading chamber to the innersurface of said portion which extends down and over into said threading chamber.

6. In a shuttle of the self-threading type for automatic looms, thecombination of a the bobbin, said friction member extending 'to the inner surface of the said portion which extends down and over into said threading chamber.

FRANK H. STETSON.

Images