US1666960A - Selvage-relieving mechanism for looms - Google Patents

Description

Apri124, 1928. 1,666,960

E. A. CUNNIFF SELVAGE RBLIEVING MECHANISM FOR LOOMS Filed July 2.5, 1927 2 Sheets-Sheet 2 Invevmor. Edward A. Cunnlff bymwkmf A1 Tys,

Patented Apr.24, 1928.

l UNiTEnijsrATE-tfs eA EDWARD a. CUNMFF, F WiiLTHnm-xessncnnsmrs'Assmnon *no :DRAPER Conf roRATmN, oF'HorEDnLn, amssacnusnms, .A CORPORATION o'F' yarianna.

- SELVGE-BELIEVING MECH-ANISM .FOR `LOOMS.

applicati@ inea Jeuiyes, 1927. vserial no. 20s,i7e.

This invention relates to means for relieving the strain on the selvage warps during the operation of Wea-ving' clothin a loom.

The object of the invention 'is to provide vfor the advancement of the fell at t-he selvage prior to beat-np so that when the pick is .beaten in, the fell shall .extend lin a suhstantially straight line. p

The object ofthe invention is further to provide mechanism in connection `with the usual -temple for. effecting the advancement of the selvage prior tobeat-up `so as to vref lieve the @hating and strain of the reed on the selvage wa'frps.V

The object of the invention is further to provide a selvage strain-relieving mechanism which will assist in .maintainingthe cloth stretched widthwise as yit advances inV the weaving operation.

These and other objects and features ot the invention will appear more rfully 'from the accompanying description and drawings and will bevpart'icularly pointed out Vinthe claims.

A simpleeand referred form of construction-embodying Yt e invention is hereinshovvn as secured to andfop'erating in conjunction with a loom temple. i With such-a construc-V tion it will be .understood that the parts are duplicated but reve-rsedat the .opposite side of the/loom and that it i's'therelfore sullicient yto ldescribe thcpmech'anismjfat but one Vside oi' the'loom.'

ln thedrawings:

Fig. 1 is a top plan view "of aiportionfo'f a loom embodyinga simple and preferred form of the `present inventionand with 'the' constructions, which act .to the cloth stretched widtliwise as it advances in the weaving operationfand to secure a substantially uniform width ofthel 'clothf as it is wound .up on thecloth roll. .But 'the width of .the cloth, notwithstanding Vthe use always much narrower the width of v the-sheet of warps passing throughjthereed, which is the instrumentality employed to beat in eachsuccessive pick ofwe'ftjor filling. While therefore, A there .is llittle strain-on the wai-ps at the center ofthecloth being woven, :the strain increases .toward the selvage and at the selva-gel is very substantial! r` because the .selvageaval'ps necessarily extend in an ,inclined direction'toward the center 'of the cloth .fromthe vfront 'face ot thereed to the fell. lItis common, therefore, -to make the selvage warfps of heavier Iyarn and to space them more closely. v/.Becausefofithis and of .the :forces acting' inthe weaving ,oper-.- `ation the fell of the cloth at` the, selvage before beatup occurs, vis found to stand somefore, the reed beats in vthe pick, it does not `strike the fell evenly throughout but strikes `first against the fellat .the selvages, thus orcing'the Ycloth at AVthe selvages forwardly and vstraining and wearing 'the selvage f avarps. f The present invention acts automatically to advance the fellof the cloth at the selvagge priorv to eachbeat-up'so -Vthat theffell will extend in a 4 substantially straight line and "be engaged levenly throughout'by the reed as it beats in the' pick. vage may cven'loe advanced{fartherthan the 'fell at the vcentral portion of the cloth, if desired, so thatl the reedwill Vfirst engage the central section of plfk. i The operation of the invention is found materially to relieve the wear and str a'inonv the selvage warps, to reduce thefbreakage The feu ai ai@ Sei- Vthe fell vasitbeats the off the selvage warns, and greatlyto improve Y the character oi the weaving.

assists the temple in maintaining the l'cloth stretched widthWi-se. Such a mechanism in no way .interferes with the .construction or operation ofthe 4loom and may readily he applied toexisting looms. The,nventionmay be involved in Valmost The preferred mechanism .employed also any type of loom and as the construction and and yieldingly projected rearward. The

head presents the pod 6 and cap 7 between which are mounted the usual templeroll or rolls, herein shown as two vin number. These temple rolls 8 are journaledin the temple head so as tostand transversely of the clothand their' peripheral surfaces act to engage and hold the cloth, being usually provided with radially projecting pins, as illustrated. A heel 9 depends from'the temple head in the path of the lay 10.

The lay 10 is carried by 'the lay swords 11, which also support the usual reed 12.` Aid-V jacent the breast beam the loom is provided with suitable means such as the roll 13 for taking up or cloth.

lhesheets of warps 14 extend forwardly from the warpbeam and the shed forming and other usual mechanisms ofthe loom between the dents of the reed 12 to form the cloth which, after it is formed, passes through the temple head about the temple rolls 8 andfthence forward to the take-up rol113. After the pick of weft 15 has been winding up the completed "carried through they warps by the shuttle,

the lay beats or carries the reed 1 2 forwardly against the fell 16 with a sharp blow, thus forming the cloth. The cloth necessarily contracts in width, as already pointed out, and the temples act to maintain it stretched widthwise to the required degree to secure a desirable anduniform width of the finished cloth on the take-up roll. 1t will be seen that the selvage warps 17, which are herein shown as of'heavier. yarn than the main body of warps 14, extend from the face of the reed in an angular direction toward the center of the cloth and, as shown in Fig. 2, the portion of the vfell at the selvage, dueto the conditions existing, stands rearward of the general line of the fell. This portion of the fell isadvanced just prior to each beateup by this invention so as to relieve as much as possible the strain `and wear `on the selva-ge warps as thereed'beats the pick in.

lthe temple shank 5. bell crank form fulcrumed atg18 on a stud temple and actuated by thevlay. A lever having an auxiliary cloth engaging roll, shown separately in Fig. 5, is fulcrumed on This lever' is of the 19 projecting laterally from the temple stand, and has'one arni in the form of a depending heel- QO and the other arm 21 bifurycated to receive the journal 22 of the auxilabout a stud25 projecting laterally from the heel 270 and coiled at its upper end about a st ud 26 on the temple stand and locked at its extreme end against another stud 27.

it the reed, first engagesthe heel 2() of the auxiliary roll carrying lever and rocks this lever until the lay Vcomes 1in engagement with the heel 9 of the temple. During this movement, the auxiliary clothengaging roll 23 is moved bodily against the cloth to bend the selvage .portion transversely, or in this case upwardly, and this acts to advance the cloth at the selvage by pulling it forward through the temple. Thefparts are so arranged -that this movement is sufficient either to pullthe fell at the selvage into line with the main lineof the fell, as shown in Fig. 1, or even tol pull it slightly farther for- Ward,y ifjdesired.. As the lay concludes the beating up moven'ient,` the temple moves for ward slightly, thus without disturbing the action of the auxiliary cloth engaging roll andthe pick is beaten in thefreed uni- -formly and evenly and withy a minimum `amount of strain and wear onU the selvage warps. 'the layv beats back, the auxiliary cloth engaging roll and its'carrying lever return, under the action of the spring 24, to normal position ready for the next beat-up`l i i Vitlrav cloth engaging Vroll y'of the constructionillustrated,that iswith a holding peripheral surface such as that provided byV the radially projecting pins, this roll assists to maintain vthe cloth stretched widthwise after the manner of the temple rolls.

"Having thus decribed the invention, what isclaimed as new,` and desired to be secured by'Letters Patent, is:

1. A loom comprising means acting on the cloth forward of `the fell tovmaintain the cloth stretched widthwise as it advances in the Weaving operation, and means acting on the cloth Lat the selvage forward of the rstretching means prior to beat-up to advance As thelay. moves forward carrying with ward of the stretching means at the selvagek and engaging the face of thecloth in substantial parallelism with the fell and means acting priorV to beat-up to move the roll bodily against the cloth to bend the selvage portion transversely and thus to advance the fell at the selvage when beat-up occurs.

et. A loom comprising the construction vdefined in claim 3 in which the cloth engaging roll is'provided at its peripheral surface with radially projecting pins acting to assist in maintaining the cloth stretched widthwise as the cloth advances in the weaving operation.

5. A loom comprising rotatable means engaging the cloth at the selvage forward of the fell to maintain the cloth stretched widthwise while permitting the cloth to advance in the weaving operation, a roll located forward of said rotatable means at theV selvage and engaging the face of the cloth in substantial parallelism with the fell, and means acting prior to beat-up` to move the roll bodily against the cloth tol bend the( selvage portion transversely and thus to advance the fell at .the selvage when beat-up occurs.

6. A loom temple comprising a'frame having a head and a depending heel engaged by `the lay upon the beat-up, a cloth engaging temple roll journalled in the head, and an auxiliary cloth engaging roll journalled on the frame forward of and parallel to the temple roll and bodily movable with respect to the frame transversely of the cloth at the selvage. Y Y

7. A loom temple comprising a frame having a head and a depending heel engaged by the lay upon the beat-up, a cloth `engaging temple roll journalled in the head, a support movably mounted onithe frame and having a heel normally standing rearward of the frame heel and an auxiliary cloth engaging roll journalled on the support and extending across the path of the selvage forward of and parallel with the temple roll, the said support, when the temple is mounted on a loom and the lay beats up striking'the heel of the support, moving the auxiliaryroll bodily to cause it to bend the selvagetransversely and thus advance the fell at the selvage beforethe pick is beaten in.

8. A loom temple comprising the construetion defined in claim 7, in whichthe auxiliary cloth enga-ging roll is provided at its peripheral surface with radially projecting pins acting to assist in 'maintaining the cloth stretched widthwise as it advances in the weaving operation'.

9. A loom temple comprising a frame having a head and a depending heel engaged bythe lay upon the beat-up, a cloth engaging temple roll journalled inthe head, a 'lever fulcrumed on the frame having one arm forming a heel normally standing rearward of the frame heel, anauxiliary cloth engaging rolljourn'alled on the other arm of the lever and extending across the path of the selvage forward of and parallel with the temple roll, whereby when the temple is mounted on a loom vand the lay beats up, the lay Will strike the lever heel .and rock the lever to cause lthe auxiliary rollfto bend the selvage transversely 'and thus advance the fell at the selvage before the lay engages they frame heel and the pick is beaten in.

" 10. A loom templeV comprising the construction defined in claim 9, in which ,the Y Y l auxiliary cloth engaging roll is provided at its peripheral surface with radiallyprojecting pins actingto assist in maintaining thel cloth stretched widthwise as it advances in the Weaving operation.

1l. A loom temple comprising a vframe having a head and a depending heel engaged by the lay upon the beat-up, afcloth engag- 'ingtemple roll journalled in theV head, lk *lever fulcrumed transversely on the frame and havingone arm in the form of a heel normally acting to position thelever with its heel standing rearward of the frame heel, anauxiliary cloth engaging roll journalled lon the other arm of the lever and extending across the path of the selvage forward of and parallel with the temple roll, whereby, when the temple is mounted von a loom Vand the lay beatsA up, the lay will strike the lever heel and rock the lever to causev the auxilvextending'adjacent thekframe heel, a spring v i' iary roll to bend the selvage transversely and thus advance the fell at the Aselvage before the lay engages the Vframe heel and the pick 'is beaten 1n.A v

vIn testimony whereof, I have signed my name to this specification.

EDWARD A. .(EUNNIFF.y l

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