US2221174A - Textile apparatus - Google Patents

Description

Nov. 12, 1940. R. H. BALCH ET A1.

TEXTILE APPARATUS Filed July 1, 1939 2 Sheets-Sheet l.

R. H. BAL-CH .Er AL 2,221,174

TEXTILEAPPARATUS Nov. 12, 1940.

Filed July 1, 1939 2 Sheets-Sheet 2 NuENTU 40 leasing mechanism;

" Patented Nov. 12, 1940 TEXTILE APPARA'rUs Ralph n. Balch, Thomas c. campbell, and J mes j L Grant,

Cumberland, Md.,

assigno to Celanese Corporation of America, a corporation of Delaware Application July'l, 1939, Serial No. 282,370

4 Claims.

comprises means for driving a warp beam, a plurality of harness shafts disposed between the beam and the yarn supply for guiding yarns to the beam in the form of a plurality of superposed sheets, one sheet for eachA shaft, means for bringing half of the harness shafts to the same level as each other, means for bringing the remaininghalf of the shafts to the same level as each other, so that alease cord may be inserted between the two corresponding sheets of yarn, and means for transposing the two sheets for the insertion of a second lease cord.

Conveniently the levelling of the shafts is effected by the use of stops onkconnections to the shafts by which the shafts are raised or lowered, the stops'being engaged by the means by which the respective sets o f shafts are levelled and transposed. Thus, the connections may pass through abutments, one of which is movable and 2 can engage stops to bring the yarns into the plu.-V

ther movable abutment may be moved to increase the space between thesets, thus facilitating the 3 insertion ofthe lease cords by the usual hooked rod. f

The invention will nowbe described in greater detail with reference tothe accompanying drawings, in which,v

Fig. 1V is a side elevation of the Ibeaming and Fig. 2 is a front elevation of the leasing mechanism;

Fig. 3 is a diagrammatic side elevation of the mechanismgin running position, and also showing the creel'; l

Figs. 4 and 5 are similar to Fig. 3 `(omitting the creel). but show the leasing positions of the mechanism; 50 Figs. 6, 7 and 8 are fragmentary views corresponding to'Figs. 3`5; but showing a modicaf tion; and I Fig. 9 shows the4 arrangement of stops and brackets for the shaft arrangement of Figs. (i-8.

Referring to Figs. 1 and 3, warp yarns are suprality of ,superposed sheets, and through other plied from bobbins I, mounted on two 2-bank creels 2, are led over rollers3 arranged at such 'a height that the threads can pass as four separate substantially parallel sheets'4 to the warp beam 5; The mechanism includes four heddle shafts 5- 6, 1., 8, 9, and'a spacing reed I0 disposed some little distance in front of a roller II, over which the threads pass to the beam 5. y During the winding of yarn on to the beam 5, the shafts', 1, 8, 9 occupy the positions shown in Fig. 3,` so as to maintain the spaced relationship lof the warp sheets 4, thus preventing rubbing of the yarns against each other, the yarns only converging close to the roller II.

The shafts 6, 1, 8, 9 are carried by a frame I2 extending upwardly from the rear end of the main frame I3 of the beaming mechanism. Each shaft is carried .byvpairs of cords I4 which pass over pulleys I5 on' the top ofthe frame I2, the cords I4 being connected to rods I6, I1, I8 and I9 enabling stops to be connected to the cords, as described below. The -rods I6, l'1 pass through' a 'bracketvZIl xed to the frame I2, and the rods I8, I9pass through a movable bracket 2I and a further movable bracket 22. The brackets 2|, 22 are controlled by cords '23, 24 as will appear below.

Below the bracket 28, the rods I6, I1 have attached thereto stops 26, 21, and the rods I8, I9 -have similar stops 28,29 .below the bracket V2|. Below the bracket 22 the rods I1,- I8, I9 have'secured thereto'stcps 31, 38, 39. With the shafts l v 6-9 at -the levels indicated in Fig. 3, the stops 31, V38, 39 are all contacting with the bracket 22, as in Fig. 1, the stops 31-39 being suitably` adjusted on the rods I1, I8, I9 and the stop 2B on the rod I6 for the shafts to hang in this running position. The stop 21 on the rod I1 is, however, spaced from the bracket 28 by an amount representing the difference in height of the shaft 1v above the shaft ,6 in Fig. 3. .The bracket 2| is positioned so as lto contact with the stop 28 on the rod I8 and the stop 29 on the rod I9 is spaced from the bracket 2l by a distance equalling the height of vthe shaft' 9.abovethe shaft 8, this distance equallingthe distance of the stop 21 from.

the bracket 28.

A counterweight 40 carried by a cord 4I is connected to the largerbracket 22 so that the bracket may readily be brought to` diiTerent vertical positions.` TheAcords 23, 24 passv round pulleys 42 to levers 43, 44 'pivoted at the front end of the frame -I3. The tendency ofthe shafts 8, 1, 8, 9 is to fall under their own 'weight in the frame I2 and they A are. also urged'downwardly by means of springs 45.. The rear ends of the levers 43, 44 are thus \55 urged downwardly, but both levers can be held with their rear ends raised by means of latches. The lever 44 can be latched at positions A and C of Fig. 1 only, while lever 43 is latched only in the D position. The lever 43 can be freely moved between positions A and B. Thus lever 43 is pro--` vided with a counterweighted handle 60 which -serves to keep the cord 23 taut at all times when the lever 43 is at4 A or B positions or between the above mentioned positions.

To obtain thesiirst leasing position, as shown in Fig. 4, the operator moves leverI 44 in one continuous motion from position A to C. During the rst part of this movement. movable bracket 22 is raised by the tension of spring ,45, an amount equal to the distance shaft 1 is above 6 as shown in Fig. 3. This movement permits rod I1 to rise until stop 21 comes in contact with xed' bracket 20. At this point, shafts 6 and 1 are in the same horizontal plane and remain there during the balance of the leasing operation. At the same time, rods I8 and I9 continue to rise until stopped by lever 43 upon said lever reaching position B and striking Aa projection or stop at this point.l The upward movement of bracket 2| may cease before, at the same time, or after stop 21 comes in contact with fixed bracket 20. The amount of movement of bracket 2| at this point governs the space between the two layers of yarn as showrL in Fig. 4 and is controlled by the location of po'- sition B. During the later part of the movement of lever 44 from A to C, `bracketv22 is raised by spring 45 attached to shaft 9 through cord I4 and rod I9 until stop 29 comes in contact with bracket 2l. The counterweight 49 also assists in the upward movement of bracket 22. The distance which stop 29 moves to come in contact with bracket 2I is equal to the distance of shaft 9 above shaft 8 as shown in Fig. 3. l

'lghe two sheets are then transposed, preferably after further slight winding of the warps tbwards the beam` 5. This transposition of the warps is effected by operation of the lever 43 only, this leve being fully depressed to lower the bracket 2I and raisel the corresponding pair of .shafts 8 and 9 by an amount thatbrings the dfub sheet of warp controlled by "these shafts a ve the level of the double sheet controlled by t e shafts 6 and 1, as shown in Fig. 5. Lever 43 is now in position D, (Fig. l), lever 44 remaining in position C. A further lease cord is inserted between thewarps in front of the reed I0, the two cords being separated by the crossing of the threads resulting from the transposition voi! the sheets from the first leasing position of Fig. 4 to the second leasing position of Fig. 5. The sheets of yarn are then returned to the running postion of Fig. 3 by raising the bracket 2| and lowering the bracket 22 to their original positions, as shown in Fig. l. Levers 43, 44 again occupy position A. lFigs. 6 to 9 show how an operation similar to the onedescribed above can be carried out with a number of shafts greater than 4.' In Fig. 6, six shafts 59a, b, c, d, e, f are shown in running position, toallow the warp to pass as six superposed sheets. The shafts are held in this position by a movable bracket 5I, which engages ve stops 52 b, c, d, e, f on the connections 53V b, c, d, e, f, anda fixed bracket 54, which engages the stop 55 a on the connection 53 a. v

Stops 55 b, egon the connections53 b, c, are

spaced from the bracket 54 in the running position by distances equalling the differences in height of the shafts 50 b, c, from that of the shaft 50 a. Stops 55 d, e, f, on the connections 53 d, e, f, lie below a further movable bracket 56, stops 55 e, f, being spaced similarly tothe stops 55 b, c.

Raising of the Vbracket 5I Abrings the 6 sheets of the warp to 2Ileve1s, as shown in Fig. '1, the bracket 5I and the bracket 56 being further raised, if desired, to increase the spacing between the two sets of sheets. After insertion of the first lease cord, the bracket 55 is lowered to bring the 2 setsof sheets to the position shown in Fig. 8 for the insertion of the second lease cord.

Having described our invention, what we desire 'to secure by Letters Patent is:

1. Warping apparatus comprising means for driving a w rp beam, a plurality of harness shafts disposed beween the beam and the yarn supply, and means for normally holding the harness shafts at different levels so as to enable them to guide yarns to the dbjeam in the form of a plurality of superpose eets, one sheet for each shaft, means forv bringin half of the harness shafts to the same level as each other, means for bringing the remaining half of the shafts to the same level aseach other, so that a lease cord may be inserted `between-'the two corresponding sets of sheets, and means for transposing the two sets of level shafts for the insertion of a second lease cord.

2. Apparatus according to claim l, comprising means for further separating the two sets of sheets. f l 3. Apparatus according to claim l, comprising operating connections to the shafts, stops on the connections, means to enga such stops and thereby-to position the shafts so that the yarn sheets are superposed, further stops on the con-* nections and means to engage such further stops and thereby bring to common levels the two sets of sheets between which lease cordsare to be inserted.

4. Warping apparatus comprising a warp beam, a plurality of harness shafts disposed between the beam and the yarn supply, and means for normally holding the harness shafts at different levels so as to enable them to guide the yarns to thebeam, operating connections for supporting the shafts, a movable abutment adapted for the passage of the connections, stops on the connections adapted toengage the abutment and so positioned on the connections that they cause the shafts to guide the yarns in the form of a plurality of superposed sheets, alxed abutment and a further movable abutment, both adapted for the passage of the connections, further stops on the connections adapted to engage these latter abutments and so positioned on the connec- 'tions that they cause the shaftsto fall into twc sets at common levels, means for moving the first movable abutment to allow the fixed abutment and the further movable abutment to be engaged by all their stops, thus separating the yarns into two sets of sheets between which a lease cord may be inserted, and means for moving the further movable bracket to transpose the sets of levelled sheets vforthe insertion of a second lease cord. Y

RALPH H.- BALCH.

THOMAS C. CAMPBELL JAMES L. GRANT.

CERTIFICATE CE CORRECTION, 3 patentno. 2,'22g.,17h. N'cwenmtm` 1a, 191m, RALPH H." BALCHI, ET AL. It is herby certified that error appe'ars the printed specification ofthe abov numbered patent reqiring correction s follows: Page first column,"line 1,-beore the words This applicati n insert the following` paragraph This inventin relates-to textile spparatus and mare. particulrly to warpingmapparatus' providedwithmeans for manipulatingvsheets of yarnV proceeding to a warp -beam to permit the insertion'ofaplu'ality of lease cords during tlie warping opeeition.' l

'End that the-said .Letters Potent should beraad-.with this-correction therjein that fhe\s ame may conform tgt-,he rec-ard 'of the casein the Pdtent office.

`Signedilird sealed this 110th day of December, A. Dpli.

A Henri Van Arsdale, (Seal) Acting commissioner of yPatents..

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