US1523443A - Cross-weaving looei - Google Patents

Description

jan, 20. l

T. F. MORGAN CROSS WEAVING LOOM Filed June ll, 1925 2 sheets-sheet 2 Thoma s m01' om, r 5

MAoH/vfr Vretracted relation to the former,

Patented den. 2li,

ldlai'l'ht dlralll THOMAS F. MORGAN', OF PATERSON, NET-] JERSEY,

ASSIG-NOR T0 MORGAN SILK COM- PANY, INC., OF PATERSON, NEW JERSEY, CORFQLATON OF NEW' JERSEY.

CROSS-VEAVING LOO/.

To all wlw/1t t may concern.'

Be. it known that l., THOMAS F. h/lonoAN, a citizen of the United States` residing at Paterson, in the county of Passaic and State of New Jersey, have Vinvented certain new and useful Improvements in Cross-l/eaving Looms, of which the following is ay specification.

This invention relates to looms for cross weaving of the class in which the shedding mea-ns includes a comb-like set of warpguiding devices all projecting in the same direction at an angle to the plane of the warp and having apertures receiving the rei spective threads of one sheet of the warp and in which there is means to operate the shedding means which causes said set. of devices to alternately project through and stand retracted from the other warp-sheet and also means to cause movement laterally of the warp as between said other warp-sheet and said set of devices when the latter is in whereby the filling may be passed through the shed formed each time said set of devices assumes a projecting-through relation to said other sheet and each time the said relative lateral movement occurs the threads of one sheet are crossed with respect to those of the other. ln these looms as heretofore con-- structed the practice-has been to hold the warp for the forming of the sheds the sameas is done in plain looms, and this was responsible for the binding together of the threads of one sheet with those of the other back of the shedding means so that it was difficult to weave with some warp materials A and practically impossible with others. The

principal object of this invention is to provide a cross-weaving loom in which this objection will be. overcome.

In the drawings,

F ig. l is a front elevation of a crossweaving` loom embodying the present invention;

Fig. 2 a front elevation section of the rear reed; l

Fig. 3 shows inside and rear elevation the means for reciprocating the front and rear reeds vertically;

Fig. 4 is a plan of the auxiliary reed; and

Figs. 5 and 6 are diagrams.

The loom-frame a having the breast-beam a; forward-and-bafck-moving batten and the reed c thereon; the means for reciprocatand vertical Application filed .Tune l1, 1923. Serial No. 644.597. "c

ing` the hatten including the crank-shaft (Z rotated through gearing e from the suitably rotated drive-shaft and having suitable connections (as pitmen, not shown) connecting its cranks with the hatten; the shuttle g/ on the bat-ten and the shuttle-boxes /L and picking means c' therefor; and the take-up means including the clotlrbeam are or may be all the same` as usual.

Back of the hatten is the shedding means, ln the present instance this comprises two reeds j 1, the former in advance of the latter. The reed j has dents j and alternating` with and between the dents and upstanding from the lower bar of the reed a set of flat needles j?, eac-h having at its free or upper end a thread-aperture or eyelet j, all the dents and needles being` spaced from each other to permit the warp threads to lie between them. The reed has spaced dents 1 each having at its lower end a tlHead-aperture or eyelet lf2.

Journaled in the arch of the frame above the reeds 7' are two conical pulleys m with their axes arranged to extend from front to rear and having their smaller ends forward; they have arms m which are connected by a link a and they are thus adapted to rock together. Flexible connections o are attached to reed j and also to the pulleys at their smaller diameters. extending in one direction around the same; other flexible connections n are attached to reed /r and also to the pulleys at their larger diameters, extending in the other direction around them. TWhen the pulleys are oscillz/Lted thev reeds are obviously reciprocated in opposite direct-ions, the range of movement of reed j being less than that of reed lf. The sheet A is threaded through the eyelets of the warp-guiding devices formed by needles j2 of reed y', while warp-sheet B is threaded through the eyelets of the warp-guiding devices formed by dents c of reed 1.

The reed j has late-ral lugs jt which are leosely penetrated by vertical rods Q secured to the loom frame, so that the reed in moving vertically is guided substantially rectilineally. The reed if; is steadied in its up and down motion by springs r which may connect it wit-h the floor.

For causing the shedding motion the pulleys are oscillated and the reeds reciprocated from the crankshaft to a crank-pin s of a wheel z5 on which is connected one end of a pitinan u whose other end connected to a bell-crank lever v tulcrunied on the trame and in turn connected with the link n. The relative movement as between the ieeds laterally is caused in the present case by Inoving laterally the reed 7; which tor that purpose has a depending vertically slotted arm 7c3 receiving the pin yw ot a hell-crank lever fw ifulcrnnied in the trame and actuated from an eccentric ai on the drive-shaft through a." pitinan y which vis connected to then bell-crank lever and has an eccentric strap y embracing the eccentric. rfhe gearing g is such that the shafts and (Z rotate in a l-/L ratio; hence, it being understood that, the reeds, reciprocated in opposite directions. fully open the shed (Fig. 5) and then position the two sheets ot warp tor effecting the cross (Fig. G) in each revolution ot the crankshaft, it will be apparent that each time the two reeds assume the latter position the reed le also is made to complete a lateral movement (right or lett) so that the cross will he eti'ected and in the next movenient to open' or t'orm the shed the Warpguiding devices jg will project through warp-sheet B laterally ol'lset with respect to their previous corresponding movement.

The warp sheets are delivered from a letott beanie' and extend over rollers 2,73, the threads ot sheet A passing under a guide atiorded by a bar et which may be a part ot an auxiliary reed 5 secured by its projecting arms 6 F ig. 4t) to the loom frame ybelow the range ot vertical movement of warp-sheet B.

In ordinary cross-weaving looms ot this class the crossing operation produces a crossing or partial wral'iping-around ot the threads of one sheet with respect to those of the other not only forward ot the shedding mechanism but rearward thereof. This crossing entails the intersnarling` ot the tibres ot thetwo sheets which it not prevented will lead to their being hound together; toi-ward ot the shedding means this binding together does not become eitective to the point ot being troublesome because ot'the motion ot the reed and because ot the forward conver- 'gencenot the sheets, hut hack ot the shedding'nieans, where there is nothing` to disturb its 'toi-mation and where the sheets diverge torivardly,it always gives trouble in cross-weaving and when the warp threads Y'are composed oft certain materials Vit makes it entirely'impossible to-carry on the weaving. Inmy loom this is entirely avoided hecause means is vprovided (bar e) which prevents the shedding motion being imparted to the portion ot the warp back of the shedding means, i. e., which prevents a relative passing ot the portions ot the sheets rearward ot the shedding means as a conse` qiience otherwise of the shedding motion imparted to the warp. In the present example, the portion ot one sheet back of the shedding means is kept from moving up and down and also kept clear of the correspondine` portion oit the other sheet; but Y eomes augmented, this augmentation in the twist being generated at Vand hack ot the apertures js and extending back to guide el, and this twisting causes the Vfibres of the diitei'ent threads to catch together and bind the threads to each other. The `4reed which receives a thread in every dent, lieeps the threads apart and thus prevents their,

binding together. Having thus fully described my invention, what l claim as new. and Vdesire to secure by Letters Patent is Y A cross-weaving loom having means to support the warp, shedding means Vinfvcluding a comb-like set Vot warp-guiding de-,Q vices having tree ends formed with apeitni'es receiving the respective threads ofv one sheet ot the warp, means to alternately move Y said devices through and withdraw them from the other warp-sheet,4 means to cause movementlaterally ot the warp as hetween` said other warp-sheet and said set ot devices when the latter standwithdrawn,

meansw'ith reterence to which said devices Y moved through and Withdrawn tromV VD A U said other warp-sheet,'tor preventing the movement oft the portion ot the first warpsheet rearward of the shedding means through the other warp-sheet with said de-.

'llO

vif-es, and a reed having its dents separating the threads ot the-first warp-sheet and arranged het-Ween the 'last-named means and said set of devices.

(ln account oit. thev angular disposi-, T

. ln testimony whereof I atiiX my gnature. i

' Ti-ios. ir. MORGAN.

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