US1631531A - Loom for weaving chenille axminster and like carpets, blankets, and other fabrics - Google Patents

Description

- 92 1,631,531 June 1 7 E. HOLLINGWORTH LOOM FOR WEAVING CHENILLE AXMINSTER AND LIKE CARPETS,

BLANKETS, AND OTHER FABRICS Filed Aug. 14, 1925 2 Sho0tl$hoot 1 EdVO/JJBM WO/ZA Patented June 7, 19 27.;

j EDWARD HOLLiNGWbRTI-IQ or nononoss, ill.IlSlGyLAN1D, ASSIGrN'O R "ro THEbRoMPToN AND knowLfns YLooM wonxs 'on woncnsirna; ivrassAcHUsE rrs.

i LOOlVI non WEAVING CHENILLE ,7 a, i. OTHER Application filed August 14, 1925, Serial No.

invention relates to looms for weav ing chenille Axminster rand like carpets,

blankets and other fabrics.

--The characteristic feature of these fabrics,

as is well known, is the insertion of picks of fur? or chenille weft. These ifur picks may be inserted alternately with picks of plain weft or after the insertion of each determined number of plain picks or, in

certain fabrics,;a plainbody portion ofpredetermined length may be woven and then a predetermined i length of chenille weave. may

i be inserted, and it issometimes desirable,

when weavingthe plain or body portion of the fabric, that a plurality of shuttles containing wefts of different colours or 'charace ters be employed.

If the fur or chenille weft is arrangedto form a. design,;it is necessaryafter themsertion of each pick of fur to provide adwell than does the body weft.

' According to my invention I provide,.in a loom of-the type referred to, meanswhere- 4 by a plurality of rising and falling boxes,

say two at each end of the loom, may be employed, enabling say three shuttles to be used containing if desiredv different colours or characters of weft, These boxes are op" erated in the ordinary manner by the action of tappets on levers connected to vertically movable rodsjsupporting the respective sets of boxes, and for-thepurposes of the in vention'I arrange that-actuation of a box leverbyits tappet causesithe corresponding boX rod-to be lowered" to present, itsupper box in line with the raceway. When'weavin'g abody portion of fabric with a plurality of shuttles the box operating lever'sare actuated in the usual way, and means are provided wwhereby, when it ,isdesired mmsert FABRICS.

AX INsTEn Ann LIKE'cAarnTsjBLAN- ms, Ans

50,324, andjin Great Britain August 1 5, 1924. d v

portion of. chenille weave,- the box levers may i atleach side of the loom presented opposite the raceway. ,Simultaneously with the actuationof the box, disengaging means to throw theb oXes out of action meansconnected with l the take-up mechanismare caused to effect an accelerat on 1n the rate of. take-up,,'and an interrupting member is moved into the be thrown 'out of-action and the upper boxpath, of the starting handle of theloom so I that such handle cannot lock in the start ing position and consequently can only be operated to give one pick a t ne. Y'l his operation maybe eifected bvhandorfl by foot, operation by suitable connections from a foot treadle at'the front of the-loom. Such being briefly the nature of them;- vent1on', it will now be described more fully with the aido-f the accompanying drawings In these drawings Fig. '1' illustrates, inside elevation, such parts of a loom having'the present-inven-Q tion appliedthereto as are necessary to enablethe impr'overnent to be understood; Fig. 2 is arear viewof partsof the mechanism, that is to say looking in the directio'n thGaTrOWiAaIFig-Al, 11d

' Figs. 3,4 and 5 are detail views to-be de- 1 so I In the drawings, 1 representsla side frame,

scribed.

of the loom having journalled in appropriate bearings thereon and on the opposite side frame the usual driyen shaft 2 carrying the tappet 3 for actuating the picking lever 4,

'and'tappets such-as 5 for actuatingbox levers such as 6, these latter being connected 1n the usual way, by flexible connectors or chains such as '7, to the lifting rods for the shifting shuttle boxesy'ln thefform of the invention to be described, it is assumed that there are two rising and fall1ng"shuttle boxes at each end of the loom; Consequently two box lovers 6 areprovided, one for each set of shuttle boxes, and each actuated its own tappet onfthe' shaft 2. i

r F or the purpose of my invention, I arrange that actuationof apbox lever 6 by its tappet causes thecorres'ponding box rodto be lowered to present-its'upper 'boX in line with'the raceway.- Accordingly, the position of the. pivot stud 8", on which the box j levers work, is such in relation to the position of the engaging bowl 6 of a box lever that, on depression of the bowl by its tappet, the box lever will be rocked in thedirection *of the arrow B and will slacken the connector or box chain 7 to permit the corresponding shuttle boxes to fall.

Each box lever 6 has a rearward extension, 6 engaged by a spring 9 which acts to maintain the bowl 6 in en agement with the-surface of its tappet and, when the box lever is permitted. to rise acts through the connector 7 to raise the box-rod, and thus present the lower shuttle boxopposite the raceway.

In con'neCtiohwith eachbox lever 6 I pro vide a forwardly extending lever 10, pivoted at 1-1 between its ends'on a bracket 12-, attached to'the loom side. The rear end of each lever 10 is connected, by a link 13,.with

the rearward extension 6 of the corresponding box lever.- 1

The front ends of the two levers 10, or disengaging levers they may be termed, extend'through slots'1 i,14i in a member or grate 141:, which is movable vertically in Adjustably secured to the grate 14 is a part 22 whichextends under the front ends of the disengaging levers and forms a liftmg memberfor said levers.

. "Rotation of the hand wheel 21 in onedirection' lowers the gratev 14 as shewn, into a position in which the bowls ofthe box levers are permitted to be engaged bytheir tappets, the front ends of the disengaging levers moving idly to and fro in the slots 14 as the box levers are actuated. r V

Rotation of the hand wheel 21 in the opposite direction causes the grate 14,'through the crankarm 18 and link 16', to be'raised. This raising of the grate. 14', through the lifting member 22, raises also the front ends of .the disengaging levers 10." The consequent depressionof the rear ends of the disengaging levers operates, through the links 13, to-rock the box levers against the action of the springs 9" into positions in which their bowls will no longer be engaged by their actuating tappets.

the upper box at'each' side of the loom is presented opposite the raceway, andso long.

as the disengaging levers remain elevated by the grate 14, the box levers, are inoperative to change the positions of the drop shuttle boxes. A pivoted latch 23, mounted on a stud 23 on the bracket 20, has a slot 23 which, when the crank arm 18 is rotated to raise the grate 'l l, can be engaged over the pin 17 for the purpose ofholding the rate in raised position forfsuch period as iiiay be desired.

The take-up mechanism employed com prises a ratchet wheel Qtconnectedby a suitable train of gearing 25 with a gear 26 fast on the shaft 27 of the'usualtake up roll, not shewn, and to; operate such ratchet 1 wheel a twoarn'ied"lever 28is provided,

mounted pivotally on a spindle 29 which is adapted to receive, by means of an arm 30 fast thereon an oscillating motion, through link 31 and pivoted arm 32, froin'an appropriately moving part, say theadjacent lay sword.

Each arm of the lever 28 car ies a pawl,

33 or 34, adapted to engage the teeth of the ratchet 24, and when both pawls are permitted to operate the ratchet wheel. is

stepped forward at twice'the rate at which it is stepped when only one pawl is 'operative, as will be understood.

Mounted loosely on the spindle-29 is the hub of a lever 35, a rearwardly extending portion 35 attached to which extends through an openingin, the lifting member 22 on the grate 14. The lever 35 is provided witlra cam surface o0 which is adapted, when the grate 1/ v is in. lowered position. as shewn in the drawings, to engage a bowl at on the pawl 34, and to elevate said pawl out of operative position with respect to the ratchet wheel 2st. 'lVhen the grate 14 is.

terrupting member in the form of a pin 35 which, when the'lever is rocked to drop the pawl 34 into action is moved into the path of the lower end 36 of the usual starting handle 36 and limits the movement of same insuch a manner that the handle cannot lock, as it is termed, in'the startinlg position.

This interrupting member is of service for the reason that when chenille weaving to a design is proceeding, as is normally thecase when the pawl 34 is in operation, it is necessary for'the operat ve to set each pick of fur weft after insertion and consequently the loom must be run pick by pick with a dwell of arbitrary length between picks.

The interrupting member 35 facilitates this by preventing as it does the starting handle from locking in running position. The pick by pick operation of the starting handle may be efiected-by hand or"conveniently,-as before menti'onech'by means of a foot'treadle' at the front'o'f the loom whereth'e. operative etands during chenille weaving to set the ur. a

7 When it is desired to weave a plain or body portion of fabric, the grate 14 is lowered to permit the box levers to return to operative position, and by its downward movement rocks the lever downwardly to raise, by the cam surface 35', the pawl 34 to inoperative position, thus reducing the rate of take-up to that required for the body portion of the fabric. Simultaneously with movement of the pawl 34 to inoperative position the interrupting member 35 is removed from the path ofthe starting handle so that the said handle can now look in running position to enable weaving of the desired length of body fabric to proceed.

The mechanism provided by the invention, and described above, thusenables a body portion of fabric to be woven with a plurality of shuttles; it provides for throwing the box shifting motion out of action when chenille weaving is desired; it provides for the dwell required after the insertion of each pick of chenille weft if a chenille design is being woven; it regulates the rate of take-up according to the class of weaving being performed; it enables, by removal of the interrupting member, the loom to be run continuously with the-box shifting mot-ion out of action if a ,chenilleportion without design is called forgand' it enables the loom, if the second take-up pawl 34 and interrupt ing member 35 be removed, and the grate l4 raised to put out of action the box levers,

to be run as a plain loom with a single shuttle when a'plain body fabricis desired; It will thus be seen that the invention operative, take-up mechanism and simulta-' neously operative means for varying the rate of speed of the take-up mechanism according as the box shifting mechanism is operative or inoperative. 2. A loom as set forth in claim 1, in which box levers are provided in said box shifting mechanism, and tappets effective to operate said levers and thereby effect lowering of the associated shuttle boxes. I

3. A loom as set forth in claim 1, in which box levers are provided in said box shifting mechanism, and tappets effective to operate said levers and, thereby effect lowering of the associated shuttle boxes, and in which the means for rendering the box shifting mech shifting mechanism is operative and a definite speed when said box shifting mechanism is inoperative.

5. In a loom having two or more shifting shuttle boxes at each end of the lay, in com- I bination, box shifting mechanism, imeans' for rendering the box shiftingmechan'ism inoperative, take-up mechanism including a ratchet wheel, an oscillating two-armed lever carrying two pawls each adapted to step forward said ratchet wheel, a pivoted lever adapted to be rocked in accordance with the movements of the. means for controlling the box shifting mechanisnnsaid pivoted lever having acam surface adapted when the box shifting mechanism is operative to remove one of the pawls mentioned from operative position and when the boxshifting mechanism is inoperative to drop said pawl into action, and a member carried by the pivoted lever and arranged tov move into the path of and obstruct full locking movement of the starting handle of the loom when both take-up 'pawls are in action.

6. In a loom having two or more shifting shuttle boxes at each end of the lay, in com bination, box shifting'mechanism, means for rendering the box shifting mechanism inoperative, take-up'mechanism and means to simultaeously increase theiate of speed of I said take-up mechanism when said box shifting mechanism is rendered inoperative.

Intestimony whereof I hereunto aflixmy signature.

EDWARD HOLLINGWOBTH,

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