US1919295A - Weft replenishing mechanism - Google Patents

Description

July 25, 1933. A. D. GARGOLINSKI WEFT REPLENISHING- MECHANISM Filed Dec. 30, 1931 3 Sheets-Sheet 1 N Wm s q a M M 3% W U Q m 5 mm 3 m m y 3 A. D. GARGOLINSKI 1,919,295

WEFT REPLENISHING MECHANISM Filed Dec. 50, 1951 '3 Sheets-Sheet 2 M RR FIG. 5

Snuentor (lnthong D. Gargohnski w aaw s u y 1933- A. D. GARGQLINSKI 1,919,295

WEFT REPLENI SHING MECHANI SI Filed Dec. 30, .1931 I5 Sheets-Sheet 3 nu enter Qnthom DGargohnsh v attorney 5 l Patented Ju1 25, 1933 ANTHONY n; GARGOLINSKI, or wonons'rnn.massnonusn'r'rs, AssIGnon. 'r'ofonoMriToN r a KNOWLES LOOM wonxs, or WORCESTER, massncnusn'rms; A oonronmrro v or MASSACHUSETTS Application med December 30, 1931. seriai'uo'. 583,929."

This invention relates 'to mechanism for replenishing weft supply in the shuttles of a multi-color automatic loom. Y e

It is the general object. of my invention to provide improved and simplified devices for rendering the bobbin-releasing and delivering devices operative upon indication of weft exhaustion. v I also provide an improved thread-cutter and shuttle placer for use in combination'with my improved weft replenishing mechanism. a

My invention further relates to arrangements and combinations of parts which will be hereinafter described and moreparticu larly pointed out in the appended claims.

A preferred form of the inventi'onis shown in the'drawings, in which i Fig.1 is an end elevation of my improved weft replenishing mechanism, with parts of the loomshown in section; V a y j a Fig. 2is a diagrammatic end elevation show ng certain operating mechanism for the magazine;

Fig. 3 is an end elevation of certain parts appearing in Fig. 1 but shown in adifi'erent position; Fig. 4: is a plan view of the mechanism showninFigl; 1 "j Fi 5 and 6 are detail plan views, showing t e operation of the thread cutter and placer; a

Fig. 7 is a front elevation of improved mechanism, looking in the direction of the arrow 7 in Fig. 1; I I v u Fig; 8 is a detail sectional plan view, taken along the line 8 -8 in Fig. 7 Fig; 9 is a detail front elevation, along the line 99 in Fig.8, and 7 Figs. 10, 11, 12 and 13 areviews similar to taken Fig, 9 but showing the parts'in successive operating positions.

Referring to the drawings, Ihave shown a magazine having a frame mounted on the breast-beam 21 ,of a loom in the usual manner and designed to supplyiresh bobbins toa shuttle S in a shuttle-box 22 on the usual lay 23. The magazine shown has two bobbincells or compartments 24; and 25 (Fig. 4) and is adapted to selectively deliver two difierent kinds or colors of bobbins.

commercial I form is sli by vertical slide *the usual latch 47 mm niirnniv sniive mncimn'rsm A weft detector 26' stand 27 andis; provided with a forwardly projecting arm 28 adapted to bes'w'un'g sideways from the stand 27 by'the side-slipping igy i for y a usual, ably mounted in' 'a of the detectoi26 when the detectorengages a substantiallyexhausted weft carrier. f The weftcarriers'are retained. in the mag? azine'cells 24' and 25 by the usual rocking n or cradles (notshown), which supports are connectedfor actuation" bars 30 and 31 (Fig; 1). are provided with latches bobbin supports These slide bars 32 (Fig.7), 'which when moved upward swing out" into :position to engage a lifter bar 33mounted-on' an'arm 34which swings about a fixed'pivot stud 35QFigL1.) 1

A depending arm 36 is provided .on therockjarmfi, and aistud 37 in the arm 36' 'extendsthrough aslot 38 inan upright lever 39, pivoted on afixed stud-40 (Fig. 7

and having a depending portion extending downward and reduced in cross s ction as I indicated, at 41". Th lever extended upward beyond'the stud 37 and is provided with a stud 42 connectedby acoil spring 43 to'the stud 37 in the arm36. A spring toggle will be' yieldingly retained; in either raised 'or' lowered position.

M11145 7) extending horizontally and provided-with 'a' link 46- loosely underlying (Fig. llthrough which thev transferrer 48 .iS ctuated by the bunter14 9 onthe lay 23 on weft replenishment.

* Fingers 50 Q (Figs. 4; and loosely on a rockshaft 51 having bearings '52 onfthe magazine'frame 20. The shaft 51 is free to' move angularly relative to the fingers 50 but the fingers 50 are held-from 9) are mounted i is thus provided, by which the lifter bar'33 j v The lever 39 is provided with an additional axial movement relative to the'shaft 51. The I outer ends of the; fingers 50 extend into notches 54: in. the vertically sliding bars 30 and'31." jv

A color slide-5 5 (Fig. 4) is looselymounted on the shaft 51 and is free to move either an-- gularly or axially 'relativejthereto. The slide 55 is provided withlugs or projections 56 at its opposite ends, either one-of which may end'portion 6d of an indicating lever 65,.

' 9150 the jacent one of the fingers and secured to the rock shaft 51.

A latch 61 (Fig. 9) is mounted to slide'in a transverse recess in the collar and is provided with a reduced end portion 62 extending through the collar 60 into position for engagement by the horizontally extended upper which lever is mounted on a fixed pivot 66.

i The lower. endportion 67 (F igs.1 and 7 of the indicating lever 65 extends forward as indicated in Fig. 4 and is positioned alongside the weft detector stand 27 When the detector-26 slips sidewise to indicate substan- H ti-al weft exhaustion, the forwardly projectmg portion 28 of the detector is swung side wise against the portion 67 ofwthe indicator lever65 andgthus raises the end portion'6t 0f the lever from the positionshown in Fig. position shown in Fig. 11.; When in the latterposition, the portion6t engages the reduced portion 62 of the latch 61 and. the latch'ismoved. from the withdrawn position shown -in Fig.y9 to the operating position shown in Fig. 11 when the collar 60 is moved angularly, as'will be hereinafter described. 1 The'reduced lowerend portion 41' of the lever-39 extends intoa; slot 70 (Fig.6) in a slide plate 71 which is movably mounted with reference to a' stud 72 which extends upward through-a slot 73 in said slide, plate. The stud 72 is fixed in a stand 5 'havinggu'ide- Ways'foraslide 76, on which a-combined weft cutter and shuttle placer is mounted.

This cutter and placerjcomprises a cam plate 80,(Figs. 4 to 6)-pivoted at 8,1 to said slide? 6 and having a cutter and placer jaw 82 fixed to said cam plate 'and'extending rearwardly therefrom. The cam plate has a cam groove 84 through which the fixed stud 72 extends and also has acamsurface 85 which engages a stud 86 ontheend of the slide plate 71.

A movablecutter jaw 87 (Fig.1) is pivoted I to the fixed jaw 82 at 88 and has a forwardly extending arm 89 provided with a'stud 90 engaginga cam surface- 91 on the under side of the cutter stand 7 5 as the cutter slide 7 6 is moved forward. A suitablespring (not shown)is provided for opening the cutter jaws asthe cutter slide moves rearward.

When the loomis operating norm'ally,-\a

shoulder 93 on the cam plate 80 engages a projection 94 on the slide plate 71,- as shown in Fig. 4, and the weft cutter andshuttle placer is thus held forward and out of the path of thelay and shuttle. a 1. Y A cam bar 95 (Fig. 1) is verticallymovable v surface 9(engag1ng a in guide-ways on the magazine frame 20 and at its upper end is pivoted to the end of the lifter bar 33 previously described. At its lower end the'bar 95 is provided with a cam stud 98 on an arm 99 as the bar95 is raised. ber'lOO is pivoted on the stud .98 and is con- A'bobbinrelease memv nected to the magazine frame by a link 101. v

As the bar 95 is raised, the member 100 is thus withdrawn to release any bobbin which may be held in transfer position. 1

The'rock shaft ol i regularly oscillated in 7 any convenient -n1'anner, as by the arm 110, link 1 11, cam lever 112 and cam 113 shown in 1 ig. 2. The rock shaft-51'is thus given one complete of the lay.

oscillation for eachalternate beat The color slide selectively moved ally on arlever 120 (Figs. 1 and 3) pivoted at 121 on the magazine frame 20 and .having an upwardly extending arm 122 provided. with a-stud 123., This stud .123 engages the upper surface of a cam .bar12t havinga slot 125 through which thestud-121 extends. The bar: 124 is suitably connected, through a chain 126 (Fig. 2), to some convenient part of thebox motion, so thatthe cambar12t will be moved. upward or downward in accordance with the movements of theboxes. M The bar 12thas a' cam recess .130- in its upper surface, adapted to receive the stud 123 of the ,lever 120 as the vbar 124 slides downward, this downward movement being effected by a spring 181which acts to force asi the bar12tdownward whenever .tension o n .Assuniing that the color slide 55 is positioned as shown in Fig. 1, the lug .56 at the right-hand end of the color slide 55 will. be positioned in thenotch 57 of the-'rightfhand or forward finger 50, as shown in Fig. 9.-

As the collar60 is rocked with tho shaft .51, a shoulder 138 (Fig. 10) thereon engages theprojection 58 on the color slide 55 and rocks the colorslide. The notch or recess57in the finger 50 is ofsuch extent', however,that the lug '56 moves freely in the notch 57 and no motion of-thefinger takes place, the positionof the PEI-118313111116 end ofthe movement being j as shown in.'Fig..1O. I

If, however, substantial exhaustion of weft has caused the member 64 to be raised to the position shown in rFig. 11, the latch 61 will be shifted in the collar 60 and willengage the projection '58on the color slide 55, by which As the rock shaft 51 is moved clockwise in' Fig. 13, the lug 56 engages the right-hand end of the notch 57 and depresses thefinger 50, thus carrying the lifter bar 33 downward and swinging the lever 39 to release the weft cutter and shuttle placer.

This allows the cutter slide 7 6 to move rearward, during which movement the cam slot 84.- cooperates with the stud 72 to swing the cutter jaw and shuttle placer 82 angularly, causing the shuttle S to be moved to fully boxed position.

As the cutter slide is thereafter forced forward by the lay, the cam surface 85 on the cam plate 80 engages the stud 86, pulling the slide plate 71 downward, as viewed in Figs. 4, 5 and 6, and reversingthe position of the lever 39. Such reversal raises the lifter bar 33, which moves the depressed slide bars 30 upward and thus restores the parts to their original position.

It will thus be seen that I have provided a direct connection between the weft detector and the selecting and releasing mechanism of the magazine. By so doing, I am able to omit the chopper lever and associated parts previously used in this type of mechanism.

I have also provided a positive connection between the weft cutter and shuttle placer and the bobbin release by which the bobbin will be normally released as the lay closely approaches front center, the cutter slide being moved forward as a result of the engagement of one end of the front box plate P (Fig. with an abutment 140 on the cutter slide. If, however, the shuttle is so widely misplaced that the side of the shuttle, the cutter slide 76 will be pushed forward earlier in the cycle of movement of the layand the bobbin will be released before the lay reaches front center.

All parts of my improved mechanism are of a simple construction and operation and the various movements are accomplished with the least possible delay. 1

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims,,but what I claim is 7 p 1. In a weft replenishing drop box loom, a multi-color magazine, slide bars movably mounted thereon, fingers engaging said slide bars,

the finger 50 and tion df'substa'ntial weft position after shuttle placer 82 engages the late said shaft, a colorv slideaxia'lly movable on said rock shaft to engage a selected finger, a member fixed to saidshaft,a connecting de-. vice mounted in said member and movable to operative and. inoperative positions. relative to said color slide, a weft detector, and means engageable by said weft detector on indicaexhaustlon and actuated thereby'to move sa1d connecting device to operative position in said member.

, 2. The combination in a weft replenishing loom as set forth in claim 1, in which means is provided through which. said rock shaft positively returns each slide bar to lowered said bar has been raised through the operation of said; connecting device.

a rock shaft, means to regularly oscil- 3. The combination in a weft replenishing loom as set forth in claim 1, in which a shoulder on said member positively engages and moves said color slide in a direction opposite p to the movement effected said connecting device.

4. The combination in a weft replenishing loom as set forth in claim 1, in which said member is provided with a recess therein and in which said connecting device comprises a latch normally seated in said recess but slidable outward into position to engage a portion of the color slide, and means to move said latch.

5. The combination in a weft replenishingloom as set forth in claim 1, in which said member is provided with a recess therein and .in which said connecting device comprises a latch normally seated in said recess but slid able outward into positionlto engage a portion of the color slide, and means to move said latch, said latch being returned to in-' operative position by gravity when released.

6. The combination in a weft replenishing loom as set forth in claim 1, in which the means engaged by the weft detector comprises a bent lever mounted. on a fixed pivot and having its upper end horizontally extended to engage said connecting device and I its lower end forwardly extended to a position in which it may be engaged by a forwardly extended portion of said weft detector.q I 1 p 7 The combination in a loom as set forthin claim 1, in which the weft replenishing T bar-engaging fingers are loosely mounted on i said rock shaft but are held fromaxial movementrelative thereto. f V y 8. The combination ina weft replenishing loom as set forth in claim 1, in which a cam I .7

on the bottom-shaft is connected to regularly oscillate the rockshaft. l

9. The combination ma weft replenishing loom as set forth in claim 1, in'which the color slide is provided with projections selectively positioned in segmental notches in said fingers and having lost motionrelative to said 10. The combination in a Weft replenishing loom as set forth in claim '1, in which the means for moving the color slide axially comprises a lever engaging said slide and having a stud thereon, a spring'to move'said lever in one direction, and a slidable cam bar efi'ective to move said lever in the opposite direction.

11. The combination in a Weft replenishing drop box loom as set forth in claim 1,. in

Which the means for moving the color slide axially comprises a lever engaging said slide and having a stud thereon, a spring to move said lever in one direction, and a slidalole cam bar effective to move said lever in the opposite direction, the movements of said cam bar being co-ordinated With the movements of the drop boxes. I

ANT'HONY D. GARGOLINSKI.

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