US2583344A - Protector mechanism for double shuttle looms - Google Patents

Description

Jan. 22, 1952 E. L. ROULLARD PROTECTOR MECHANISM FOR DOUBLE SHUTTLE LOOMS 8 Sheets-Sheet 1 Original Filed Aug. 29, 1947 zeZZazoZ 1952 I E. L. ROULLARD ,583,34

PROTECTORMECHANISM FOR DOUBLE SHUTTLE LOOMS Original Filed Aug. 29, 1947 8 Sheets-Sheet 2 1522112222202 Edzvafldll .BouZZafld,

5 E. L. ROULLARD 2,583,344

PROTECTOR MECHANISM FOR DOUBLE SHUT-TLE LOOMS Ori ginal Filed Aug. 29, 1947 a Sheets- Sheet aweniou- Edzuafldllllouiiafld, I

Jan. 22, 1952 E. ROULLARD H PROTECTOR MECHANISM FOR DOUBLE SHUTTLE LOOMS 8 Sheets-Sheet 4 Original Filed Aug. 29," 1947 [III I llllulululllli ll fil .l lulnlldl Jan. 22, 1952 E. L. ROULLARD ,3

PROTECTOR MECHANISM FOR DOUBLE SHUTTLE LOOMS Original Filed Aug. 29, 1947 a Sheet-Sheet 5 152111222302 Edarard y Wwtdw; Maud H flioflney Jan. 22, 1952 E. L. RQL I LLARD ,583,

' PROTECTOR MECHANISM FOR DOUBLE SHUTTLE LOOMS Original Filed Aug. 29, 1947 w 8 Sheets-Sheet 6 lave-222 2 Fdw afld L. 120m, by 77mm Jan. 22, 1952- E. L. ROULLARD 2,583,344

I PROTECTOR MECHANISM FOR DOUBLE SHUTTLE LOOMS Original Filed Aug. 29, 1947 8 Sheets-Sheet 7 Jan. 22, 1952 E. L. ROULLARD PROTECTOR MECHANISM FOR DOUBLE SHUTTLE LOOMS s Shets-Sheet 8 Original Filed Aug'. 29, 1947 Patented Jan. '22, I952 PnoTnoToR'MEonANIsM FoR DOUBLE h v I S I'IUTTLEJJOOMS .5 v Edward L. Roullard; Sanford; Maine: to Goodall-Sanford, Inc., Sanford, Maine, a cor porationof Maine Original imitation" sugtgtgztjieii; shiatsu.

171L296. "Divided and thisapplication Decemher 6-, 1950-,"S erialNo. 193,338 7 Claims. ((1139- 845) w .I'his invention relates to that type of loom'in which -two shuttles; are .;simultaneously picked ,in the same direction in thewveavin'g operation. Looms of this type {and are employed for: weaving: certain "speeial Itypes of; fabric; ,for simultaneously weaving two evebs rof-fabric and also foriweavingoouble pile fabric where thepileis formed bywarp yarns exgtending back ands-forth: between "oppositely dismosed ground or base fabrics I and which the pile, is severed as the weaving operation procoeds. i 2 The object; of the.-presentinvention' is to provide ineans for-,effecting frautomatic filling repienishment inthiswtype of: loom :with the replenishment taking, place" from; the-top. Auto- Itllai C-lC fillingreplenishing loom'sz'hav'e" proven :most satisfactory Whenthereplenishing opera- :tion takes placefromnthe top, thatis; with the :fresh filling carrier introduced to; and the ex- Ehausted filling carrier -disoharged1from, the box :on the lay by adownward movement. But-the application of this principle to the typebf'looin l'here involved-has heretofore SBBmBd 'IlIHIJOSSibIE because of the position of thetwo shuttles'one :above the other and the. present invention is concerned with a simple and elfective solution of this problem; 1' 'i The invention has for its furtherobject to provide improved mechanisms for .effecting th'e' stop- ;ping of the loom in the case of a misepositioned :shuttle in the double shuttle type of loom.

These-and other? objects and features of the invention will appear more: fully :from the accompanying description andndra'wings and will be particularly-pointed out in the claims. 1:" Since .the general construction. and operation of the double shuttle type of loom,.in which the shuttles are simultaneously picked in the same direction with the various adjunctive'm'echanism's employed in its operation, are'well known and familiar to those skilled in the art; and :since thelpresent invention is only concerned with certain features ofsuch looms, it is unnecessary-to illustrate and describe anythingmore than that portion ,of a typical loomofth-is type which is required in thedisclosure of a preferred form of thepresentinvention. 1:

'1' ,0, also since automatio filling replenishing mech .nisms ofvarious types are well known and famiharandhave long beenappliedto various types of looms, it is. necessary toillustratejandare well known-and familiar iii) operation;

describe in detail -,only-.-1those features 0f such:

mechanisms; arernecessar-yto adisclosure of a preferred form of the present invention.

j pin a 'usual'loom meanings carried backand forth through'the 'shed b'y a shuttle holding;a bobbin onwhicn the filling is wound and this 'sliuttleat each "end of itsmovemententersua boxf Filling replenishment ma take place either by changing the entire shuttle and bobbin or 'by "changing the bobbin alone and the ,present invention may be embodied in either type,.that in the broader scope of.the .,invention itis adaptable to either the. Shuttle changing or the bobbin changing type of loom in effecting filling replenishment, Consequentlythe term filling carrier. asgen'erally e ri'iployed herein is applicahle either to thesa rus. an bobbin unit 301:. to

the bobbinjaIoneQit being understood of ;course that theterniibobbin includes any type of device uponwhich filling is wound and mounted in the'shuttlel'l' s p In the drawings:

Fig; .1 is a toptplan viewof those portions of a'loo'rn of the typehere involved withwhich the hresentinvention is involved and with a. preferred form" of v the invention embodied therein;

" Fig. 1-11" is a" diagrammatic illustration .of an electrical means employed for initiating the operation of replenishment upon indication :of fillingfd'epletionr J V V a Fig,- 2'is a front elevation ofthe rightv hand end. of the mechanism illustrated in Fig. 1 with the breast beamand front portion of the loom removed; I '7 j 1 Fig. 3 is an end elevation of the construction shown in Fig. 1, looking toward the right, and withsome of the portions removed and broken away; "1 Fig. 4 is a view similar toFig' 3 on'alarg'er scaleof thatportion of the mechanism directly concerned with the transfer-operation; fl Figs. 5, Grand 7 illustrate the mainjportions o'i-gthetransier "mechanism in three positions, first, normal position; second, upon simultaneous indication of depletioninboth fillingcar- Piers;- and,'third, at the end of the transferring Fig. 8 is 7 'a'top plan viewof a'iportion. of. the mechanism of the magazines; tra'nsferreirs, etc. Fig. '9 is a'deta'il to illustrate particularly the give ways at the righthand side of the magezines. Y I

--In the mom;1mus r t g1t lay. I, ,asjusual,

is carried by the iay'swords '21'pivota1ly mounted oo'ni frame (and the usual crankn the loom 1 frame his Noon:

at fiilithe l shaft" "4 jour'r'iale V I v neote'clFby use links-5 to the lay and acts to move the lay back and forth between front and back centers. The lay also carries the usual reed 8. The two fabrics woven on this type of loom, separated by a knife 1 in the case of double plush, pass respectively around the upper and lower rolls 8 and 9.

The loom is supplied with the usual starter rod ID at the front manually operated at either end by the handles 1 I to start and stop the loom. The usual frogs l2 are mounted at each side on the loom frame at the front and connected by the usual mechanism to the starter rod so that when either is moved forward the loom is stopped.

In the type of loom in which the two shuttles are simultaneously picked the shuttles travel in superposed relation and are therefore superposed before and after each picking operation and this has prevented filling replenishment from above. In the present invention at the replenishing side of the loom one of the filling carrier boxes, such as a shuttle box, is mounted on a support which is independent of the lay, but which is given a movement in unison or synchronism with the lay between a position rearward of front center and back center and with the two boxes, the one on the support and the other on the lay, superposed during the period the filling carriers are picked out of and into the boxes. This is important because while the two boxes are superposed during the picking period the box on the support at each beat-up when the lay is at front center stands in a position rearward of front center. Thus transfer of a fresh filling carrier from above may, with the boxes in this position, be into either or both boxes without interference. The filling carrier box, such as the shuttle box, on the support movable independently of the lay, may be either the lower or the upper box when it and the box on the lay are in superposed relation, but preferably as illustrated theupper box is on the support because this enables a filling carrier, such as a bobbin, to be transferred from a position directly above and close to either box, that is, the mouth of a transferrer magazine may then be located directly over the lower box on 'the lay and in front of the upper box on the support without interference. If, however, the lower box 'is on the support and the upper box on the lay then to reach front center the lay must carry the upper box beneath the mouth of the magazine for the lower box on the support and thus there would be required a more extended movement of the transferrer to transfer a filling carrier from the magazine into the lower box. While this is entirely practical it is preferable, however, to mount the upper box on the support as illustrated and thus enable the mouth of the magazine for each box to be close to the box when in transfer position.

The support is shown as a frame (3 carried by a shaft H journaled in the loom frame slightly in the rear of the pivot 3 on which the lay swings. This support is shown as given its backward and forward movement by a cam [5 on the crankshaft 4. This cam engages a roller 16 yieldingly mounted by means of the spring I! on a lever l8 pivoted on the loom frame at 19 and connected at its other end by a link 20 with the support. A spring 2|- connecting the support to a bar 22 on the loom frame acts to hold the support against the face of the cam l5.

The lay carries the lower shuttle box 23 and the support the upper shuttle box 24. These boxes may be of the usual type open at the top and bottom and provided with the usual front binders 25 and 26. The boxes at the other end of the lay are, of course, of the usual type the,

' necessary to modify the picking mechanism. In

the preferred form of the present invention this is accomplished by mounting two picker rods, 21 for the upper box and 28 for the lower box, on the support I3 at its upper end and providing a picker 29 on each rod. The support l3 carries a heel portion at which lines up with the end of the box on the lay when the bOXes are in superposition so that the picker for the lower shuttle may aline with the end of it. These pickers are given their picking movement by a picker stick 3| pivoted at 32 on an arm 33 carried by theshaft l4, yieldingly held outwardly by the spring 34 and given its picking movement by the connection 35 to the usual rocker arm 36. Thus the picker stick swings backward and forward with the support and it, and the pickers operated thereby are in position for simultaneously picking the two shuttles when the boxes are in superposed position.

As it is well known, it is necessary to provide mechanism for stopping the loom if a shuttle is improperly boxed at the end of the picking operation, and for this purpose it is usual to provide frogs, such as I 2 above referred to, which are moved forward by a dagger carried by the lay. This dagger is held out of position if the shuttle is properly boxed, but drops into position to engage the frog if the shuttle is improperly boxed. Since in the present invention one box at the transfer side of the loom is carried by a support independent of the lay, and since at each beat-up the support stops at a position rearward of front center, the usual mechanism cannot be employed.

The usual shaft 31 is mounted on the lay and has near each end daggers 38 to cooperate with the frogs l2. This shaft 3'! is provided at the right hand end with an arm 39 engaging a lever 40 fulcrumed at 4| on the lay and in turn engaging at its upper end the binder 25. A similar construction is provided at the opposite end, Consequently, it will be seen that if the shuttle at either end of the lay is properly boxed the binder will press against the lever 48 and hold the dagger 38 elevated so that as the lay moves to front center the frog will not be engaged to stop the loom. This arrangement is generally familiar. To take care of the upper shuttle box a second shaft 42 is mounted on the lay and provided with daggers 63. At the transfer side of the loom this shaft 412 is provided with an arm 44 extending back past the support [3 when the support and lay are at forward positions and consequently at their widest point of separation. This arm 44 is engaged by a bell crank lever fulcrumed at 45 on the support above the position of the box. This bell crank lever has one arm 46 engaging'at its end the front binder of the box on the support and its other arm is constituted as a rod 41 extending down and engaging the arm M. Thus the bell crank lever carried by the support engages the front binder and extends over, down and behind the box on the support and acts to control the position of the dagger 53 so that if a shuttle is not properly boxed in the box on the supporhthe dagger ae car leery-the 7 in-:suchz-position astc effect stoppageof the id" when the=-lay' approaches" front center.

Thefilling" replenishing mechanism employ-s two 'magaines" one for suppmmg each filling carrierbox." Preferably these are of'the-vertic'a l typeand when as in the preferredform illus-- ti ateditlie" filling is replenished by changing the bobbins in the shuttle thesemagazine's each suppo t vertical column of the fresh bobbins which feed down by gravity in the magazines. Associated'witheach magazinei's'a' transfer-ref or pivoted hammer-"like device which upon tlieca'llv for filling replenishment acts to' transfer the lowe1-most=bohhin='in tlie magazine to the shuttle whem located directly beneath the magazine;

'I'lie -twmsetsof mechanism are preferably" stantiall'y-the sam'einconstruction:the oniyvarian tions heingdue to slightly different "loeationi Bothmag'azines 'are shown as supported" hya'n arm flitprojectingupward from the" frontpor tion" of thefloom-frameand extending 're'arwardf 'Iiie'magazine at the frontforsupplying the boa] on tlie-iay is-shown as comprising twovertical' transfer p rted (I diverate'dnom the magazine is discharged e-givefw'ays which form the in in position for transfer tl ie'- sliiittle"iii-the dii' orf tlie support.

The transferrers or hammer-like devices, which grooved columnstiland 5i! in which respectively Y the butts'an'd'tips of'the "bobbins 51 rest and guided"intheir vertical downward" movement. At thefibottom of-tlie magazine a cradle 52 is'pivoteri at fiii" and 'a'ctst'o" support the lowermost bobbin.

The mouthof' tl'iemagazine' is formed at each end. bra pair of 2 yielding; give Ways into which I hytlierockingj of 'ithe "cradle at'the proper time; the lowermost bobb'in'i is discharged and" held ready for transfer-"into theshutt-le thereheneath.

In" the: construction illustrated the give ways'a't the right hand side of the" magazine comprise two fingers. At the? rear is" a curved "finger pivotedonthemagazineat 55 :and yielding} held" by aspiring"; 56 against an; adjustable" stop: 5'51 At the front is acooperatingfinger" 58 pivoteri at'fiil'on an armifiGhependingfrom a transverse" shaft 61' pivotally mounted at the front oiithe magazine.

properly to position: the finger: p on" the: sh'aftiil between thecollar 65' and the projection efii'fromthe magazine grooved column 50 intwvhichprojectionxthe shaft 6| ispivoted acts tc'hold'xthefinger 58 yieldingly imposition. Atthe'left hand side ofthe magazine thegive way construction also'comprises two vfingers (see- Figzfl) The 'forward finger 6'! is similar'in con-- structioirto'the finger 58"at the left and is similar: ly'mounted and operated *by" the shaft 6 I.

of th'wmagazine.

ItwilFtliusbeseen that, when the cradl'hf is rocked-to "discharge thelowermost bobbin *5 f) 'tli'e hobbit ids dropped into thegiveWays which form the *mouthof the magazine;- the tip being yield ingly held between 'the fingers 5 3 and Stand the butt between'the fingers BB 'and 61.

The rear magazine for supplying 'th fre's'l'i' filling carriers to the box on the independently mounted 'support iswsimilarin -construction'. 1 It comprises the -verti'cal gr'o'oveti 'columns E 9 and the. 'craclie' 's' I pivoted at T 2 andlias at the right" the givclway fingers w and lentil-responding" in construction and operationrespectively to v I the' fingers 54 and '53; Italso has attheleft-the-gi've way-fingers corresponding itothe finger 68 and ed' and operated -frhm -the shaft 1 6 1m the same- An extension 52"015 the 'flnger 58f engagesanadjustablestop 63 on the arm 69;

A springiie The otherfingerat the re'aris a simple'curved spring" 68 securedat its" upper end to the column 49 ""n eacsmamen "and cooperating- The transfrii'""8fi has pivote d thereon at theusila-l do *errestmguponan adjustable stop 83 iii'tlie allfi'i lgpi'ojcted downward from the Thief transferrer is normally held 1 5." An y siiitable latching mech e employed, such as the two-part an '9 p rates at '92 'onthe'frame' th the pif'dj ectio'n' 93 yieldingly hei d in thefspi'ing fll This holds transrerrer late t1 in a' -mid-pbsition against the'terlsinner the" p l'ingiti'idin'g toraiseit andwith the dog- 37' belot the path of the-burner 95 on the lay? Iii-this os'itio"" he'craiile'stands; as shown in- =Fig= -5;siipp "ting the lowerinost bobbin in the magazine: cl adleis providecl' with a rearwarcfeiitension 96 a'clapteigl'to" cooperate with a cam iil mounted ontne ttan'srerrer;

The latching-mechanism of the 'transferrer is releasediipon the call for-"filling replenishment and-"ahy snitable mech'anis'm 'may be employed for that purp'osei' As illustrated in-Figs.'1 and 1-11 indication of filling exhaustion is made at the a left 'handsideof' th'e:loom and forthat purpose therefis shown "an electrically? operating feeler mech anisifi'irr'whicl'f apair of contacts 98 and 93 entertheside'of th'e shuttleat each heat-up and contactwith a metal- "sleeve on the bobbin when exposed:'hyidepletion -of the filling: This closes the 'citcuit througha solenoid l fiflwhich operates a? hook membef l0! to-release the latching mechanism;

The "operation "of the transfer mechanism will now' be' 'appai entw The-parts are in the position indicated-in Fig. fi during the normal operation of the loom Upon-depletion of filling in the lowermost shuttle at the left hand side of the lay v uptri'r the loat-npvi the latching mechanism of the 'tr'ansferref. is released and immediately the hammer rises under the influence of its spring to it 's uppei mostposition; Thisbrin'gs the cam 9T"-'into engagement= with the extension of the'nradleez rocking the'eradle and allowing the lowermost bobbin 5l' to dropiinto the give Ways andat' the same timetheoog 8T israised into the patIi Oftlie-bnnten'on-t lair: The parts-are now in -the po tion 'ownin Fi' "S-andonthe next heat-1111' the-la 5 engages-the dog criterion "e trfis roekedtiie" mid pesitlon? shell for example as force the fresh bobbin held in the give ways into the shuttle therebeneath and thus force the depleted bobbin out of the shuttle down through the usual opening in the lay. As the traneferrer rocks the cam 9'! moves away from the extension $6 of the cradle and the cradle swings back to normal position. The position of the parts at the conclusion of the transferring operation is shown in Fig. 7.

Now as the lay moves back the transferrer rises under the influence of its spring but is caughtby the latching mechanism in its mid-position.

The construction and operation of the transferrer mechanism thus described with respect to the forward magazine is substantially the same for the rear magazine. In this case the transferrer arm I02 is pivoted on the stub shaft i? slightly above and to the left of the transferrer Ell. It is provided with a similar extension its to extend over the bobbin to be transferred from the give ways of the rear magazine. A-suitable spring at any convenient point, either on the stub shaft ll or as shown at I05, acts yieldingly to raise the transferrer. The dog W6 is pivoted on the depending portion Hll' of the transferrer and held in position by the adjustable stop Hit. The latch member in this case is pivoted on the shaft 05 and yieldingly held in engagement with the depending portion ID! of the transferrer. This transferrer is provided with a projection lit to solenoid H4 and the hook H5 is actuated to re lease the latching mechanism and the transferrer rises to its uppermost position causing the projection llfl to rock the cradle H and drop the lowermost bobbin in the magazine into the give ways bringing the parts to the position shown in Fig. 6 and again upon the next beat-up transfer takes place the parts coming into the position I shown in Fig. 7 and then as the lay moves back the transferrer rises and is caught in mid-position by the latch and the parts are again in normal position.

Since each time the lay is at front center with its box beneath the mouth of the front magazine the support with its box is also at its forward position in the rearward of front center with its box directly beneath the mouth of the rear maga zine, it follows that transfer of a fresh filling carrier may be made into either 'box or into both boxes at the same time withoutiany danger of interference and in each case with the transfer taking place directly downward and with the exhausted bobbin discharging directly downward.

This application is a division of application Serial Number 771,296 filed August 29, 1947, now Patent No. 2,562,509.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

1. A double shuttle loom having mechanism for stopping the loom, a lay and means for moving it back and forth between front and back centers, a shuttle box onone end of the lay, a support, a shuttle box on the support, means for moving the support back and forth between a position rearward of front center and back center and in unison with the lay with the support shuttle box superposed on the lay shuttle box during a period of the movement toward, at, and from back center, a front binder for each shuttle box, a lever mechanism on the lay engaging the binder for the lay shuttle box and extending therebeneath to actuate the said mechanism for stopping the loom when a shuttle picked to said box is improperly boxed, and a lever mechanism on the support engaging the binder for the support shuttle box and extending up over and down behind said box to actuate the said mechanism for stopping the loom when a shuttle picked to said box is improperly boxed.

2. The combination in mechanism for stopping a double shuttle loom upon failure of a picked shuttle to be boxed properly when at one side of the loom one shuttle box is mounted on the lay and the other at a higher level on a support movable in unison with the lay between a position rearward of front center and back center, which consists in a pair of daggers carried by the lay for actuating the loom stopping mechanism, a front binder for each shuttle box, a lever engaging the binder for the lay shuttle box fulcrumed on the lay beneath the box and operating one dagger, and a lever engaging the binder for the support shuttle box fulcrumed on the support above the box and extending down bebind the box and operating the other dagger.

3. The combination in mechanism for stopping a double shuttle loom upon failure of a picked shuttle to be boxed properly when at one side of the loom one shuttle box is mounted on the lay and the other at a higher level on a support movable in unison with the lay between a position rearward of front center and back center, which consists in mechanism carried by the lay for actuating the 100m stopping mechanism, a front binder for each shuttle box, a lever engaging the binder for the lay shuttle box fulcrumed on the lay beneath the box and operating the said mechanism carried by the lay, a lever engaging the binder for the support shuttle box fulcrumed on the support above the box and extending down behind the box and operating the said mechanism carried by the lay.

4. Protector mechanism for a double shuttle loom having a lay and means for moving it back and forth between front and back centers, a shuttle box on one end of the lay, a support and means for moving it back and forth between a position rearward of front center and back center, and a shuttle box on the support with the said shuttle boxes superimposed during the period of the movement of the lay and support toward, at, and from back center, comprising means on the loom frame acting when moved to stop the loom, a pair of daggers carried by the lay each movable into position to engage and move said means when the lay moves toward front center, one moved into said position by the failure of a shuttle picked toward said end to be properly boxed in the shuttle box on the lay and the other moved into said position by the failure of a shuttle picked toward said end to be properly boxed in the shuttle box on the support.

- 5. Protector mechanism for a double shuttle loom having a lay and means for moving it back and forth between front and back centers, a shuttle box on one end of the lay, a support and means for moving it back and forth between a position rearward of front center and back center, and a shuttle box on the support with the said shuttle boxes superimposed during a period of the movement of the lay and support toward, at,

and from back center, comprising means on the loom frame acting when moved to stop the loom, a pair of daggers carried by the lay one of which is brought into position to engage and move said means when the lay moves toward front center with an improperly boxed shuttle and in which the support and the lay are provided with cooperating elements acting to bring the other dagger into position on the lay to engage and move said means when the lay and support move to forward position with an improperly boxed shuttle on the support. q

6. Protector mechanism for a double shuttle loom having a lay and means for moving it back and forth between front and back centers, a shuttle box on one end of the lay, a support and means for moving it back and forth between a position rearward of front center and back center, and a shuttle box on the support with the said shuttle boxes superimposed during a period of the movement of the lay and support toward, at, and from back center, comprising a frog and connections therefrom for stopping the loom upon movement thereof, daggers carried by the lay, andmeans for moving one of the daggers into position to engage and move the frog when the lay-and the support move toward front position with an improperly boxed shuttle in either box. f

'7. Protector mechanism for a double shuttle loom having a lay and means for moving it back lo 4 and forth between front and back centers. a. shuttle box on one end of the lay, a support and means for moving it back and forth between a position rearward of front center and back center, and a shuttle box on the support with the said shuttle boxes superimposed during a period of the movement of the lay and support toward, at, and from back center, comprising a frog and connections therefrom for stopping the loom upon movement thereof, a pair of daggers carried by the lay movable into position to engage and move the frog, means on the lay for moving one dagger into said position when the lay moves toward front center with an improperly boxed shuttle, and cooperating elements on the lay and support acting to move the other dagger into said position when the support moves to its forward position with an improperly boxed shuttle.

EDWARD L. ROULLARD.

REFERENCES CI'I ED The following references are of record in the file of this patent:

Bird et a1 June 1, 1937

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