US1499603A - Loom shuttle - Google Patents

Description

WHEY 1l 1. wm.,

LOOM SHUTTLE Filed Jan 4! 1923 w. 0 V rm wf l o @n 0/ @n wn: w .il F 0, oh MM\ www 1 o o@ 4 matta aan n tara crearon 'ro enana tu Mmm la Ummm.

application niet raam-y e, met.' anni no. einem.

To' all whom tt'may concern: Y y Be it own that l ALEXANDRE Borrar.,

citizen of the French Republic, residing at y any ordinary loom workin lF'uteauX,l in the Department ofthe Seine and State of France, have invented certain new and useful improvements in and Re-A lating to Loom Shuttles of which the following is a s cication.

rlhis invention has for its object tov provide an improved shuttle which will enable with one or more shuttles, and not provided with continuous weft feed mechanisms (operating by automatic changing of spools or shuttles, or by any other means) to work as a loom haring a vcontinuous vweft feed.

Another object of this invention is to enable this worlring to be .edected in an alinstantaneous manner, while avoiding forthis purpose the necessity of any conversion or modication of the ordinary loom to be so worked, and requiring only the addition of a few accessory parts which are simple in construction and easy and rapid to put in place.

Toachieve these objects this invention is based onthe operation of looms having a continuous weft feed of the Seaton type according to which, weft bobbins are arranged on each side of the loom, and the weftl (which is measured and cut into lengths i each equal to two shoots) is presented to a specially constructed shuttle wherein the weft lengths are gripped by grippers, and are inserted into the vshed. by the pick of i the shuttle.

The advantages of this type of looms based on this system and constructed specially for this purpose are the following 'lhe weft bobbins which may be very large so as to reduce the frequency of the intervention of the weaver, can be readily renewed during the working of the loom, and the weaver is not limited to the use of one sin le kind of weft, but has available on eac side support an assortment of bobbins of weft of diderent colours rdid'erent materials which are presented when necessary by a suitable mechanism in the requisite order of succession.

'lo achieve the aforesaid objects the present invention'provides an-improved shuttle capable of replacing instantaneously the rdinashuttle of all existing looms worh? lng wit one or more shuttles. 'lhe ctlon of the improved shuttle is an? that of the special shuttle of the looms of' the Seaton type or other similar looms, but' its use requires merely the simple addition, to the looms, of dev1ces which.l are simple and/easy to mount, for assuring the engagement b the shuttle of the weft thread or threads t at are fed in a continuous mann er from weft bobbinssituated on each side of the loom upon movable or hned supports mounted on the loom fra 'lhe improved shuttle of this invention,-

which is designed to enable any oary loom to be worked as a loom having a continuous weft feed, is constituted substantially by an ordinary shuttle of the usual shape and dimensions of a type suited to the loom in which it is to be used, but in which shuttle no spool at all is placed. The improved shuttle is characterized essentiall by the feature that it comprises at each en so as to project beyond its pointed ends, metal stems terminatin in hoolrs. 'lheae stems are situated paral el to the axis passing through the pointed ends of the shuttle @lid which are thus always ready to receive the,

form, pure and simple.,1 of a shuttle of this kind accordin to this principle of construction has draw acks due to the existence of the hooked stems projecting beyond the pointed ends of the shuttle, in this sense, that when the shuttle is picked, it frequently happens that the picker on striking the hoch, has its impact deadened before reaching the pointed end of the shuttle, with the result that the shuttle is insuciently piclred and its hooks are damaged. i' Furthermore the presence of a hook 'in front of the shuttle prevents the latter from moving forward in certain cases, with the result that the hook comes between the threads of the warp forming the shed and consequently these warp threads are broken.

ln order to remedy these drawbacks it has been necessary to make improvements for the purpose of producing a practical conlltltl ldd A shuttle of .practical construction based i on the principle of this invention is hereinafter described by wa of constructional example and illustrat diagrammatieally 1n the accompanyin drawings, 1n which Figure 1 is a p an ofthe improved shuttle.

Fi ure 2 is a side view of the improved shutt e viewed from the breast beam of the loom.

Figure 3 is a plan showing one'of the hooks in operative position for engaglng the weft shoot to be picked.

Fi re 4 1s a side view of the improved 'shutt e viewed from the reed of the lay, the hook being shown inoperative position as in Figure 3.`

Figure 5 is a longitudinal sectlon of the improved shuttle showing the elastlc parts for placing the hooks into operative position.

Figure 6 isa perspective view of the improved shuttle on its departure at the moment of engagin the weft which 1s to be pickedinto the s ed.

As shown in these figures: 1 is the body of the shuttle, and 2 and 3 are its cheeks; compared with existing shuttles this improved shuttle presents no feature of novelty except its internal arrangements which comprise a guide rod 4 fixed at its ends between two metal blocks 5 bolted to the cheek 3 by means of stay bolts, screws or other devices.

0n this rod there is adapted to slide with slight friction a metal sleeve 6 comprising at its middle and directed vertically downwards a projection 7 which is bent onceat right angles at 8 along the width of the internal cavity of the shuttle, and is then bent again at right angles upwards and parallel to the cheek 2. It then abuts a ainst a metal block 9 which is pierced axia y with a passage into which extend the ends of two metal stems 10 and 11 which are prolonged to the outside of the shuttle and slide freely 1n the passages 12 formed for this purpose in the wood of the shuttle.

These stems terminate in hooks 13 and 14. Ilheadjustment oftheir length is effected by means of set screws 15 fixing them in the block 9. This block which is fixed to the sleeve 6, is carried along by the latter in its movement along the rod`4. Damping and returning springs 16 are arranged on this rod between the sleeve 6 and the blocks 5.

Parallel to the cheek 3 and above the level of the rod 4, there are arranged spring strips 17l fixed to the ends of the shuttle by means of bolts or other devices. .The free ends of these strips are bent upwards slightly at 18 so as to enable them to be raised by-a finger 19 fixed to the projection 7 of the sleeve 6. This finger can.` thus engage in slots 20 formed for this purpose in the strips 17, ac-

cording as the movable combination 6, 7, 8, 9 carrying the movable stems 10 and 11 with of the shuttle 1.

Apertures 21 are provided in the cheek 3 of the shuttle to allow of disenga ing the strips 17 from the finger 19 (whic is engaged in the slots 20) by means of studs mounted on a fixed part of the loom on each side thereof facing the shuttle boxes. These studs extend into the apertures 21, when the lay advances, at a determined moment which is adjustable at will.

By this construction of a shuttle comprisingmovable hooked stems actuated by a device slidable in the interiorl of the shuttle, there is effected automatically the retraction of the front hook according to the direction of the pick of the shuttle, and the protrusion of the back hook at the rear of the shuttle, for the' purpose of engaging the weft and picking it into the shed.A

This changing of the respective position of the hooks according to the directlon of the pick of the shuttle, is effected automatically .and alternately at every pick of the shuttle, utilizing for this purpose of this operation' the inertia of the mechanism which is movable as a whole in the interior of shuttle, and which actuates the hooked stems, on the sudden start of the shuttle due to the blow of the picker or other picking device, irrespectively of the type of the picking apparatus.

Assuming, for instance, that the shuttle 1 is in the right-hand box, then the movable mechanism is in mid-position in the shuttle, as shown in Figure 1. By the blow of the picker the shuttle is thrown suddenly towards the left, and the reaction or relative movement of the movable mechanism in the state of inertia causes the said mechanism to move towards the right and take up the position shown in Figure 3 in which it is held by the finger 19 which s entered the slot 20 in the right-hand st ip 17. By this means the hook 11--14 is brou ht into a position of. protrusion at the bac of the shuttle, whereas on the contra the hook 10-13 is wholly or approximate y retracted into the shuttle so as to leave the pointed elnd of the latter free as in ordinary shutt es. v

This position, taken up at the instant of the start of the shuttle, allows the hook 14 to engage the weft coming from the bobbin and to draw it through the shed in the form of a double shoot.

0n the arrival of the-shuttle in the opposite box on the left-hand side of the loom, and by the advance of the lay beating up the said shoot, the hook 14 releases automatically this shoot at the fell of the cloth, while a stud suitably fixed to a fixed part of the loom, enters the aperture 21 of the cheek 3 of the shuttle, and pushes the strip 17 antenna gently baclr, thereby dise *i opposing spring l@ to ush bach the s eeve Ni. ll so that this t into mid-posltion s sleeve is ready to be lni-ted afresh in the reverse sense, when the shuttle is piclred towards the right as shown in Fie t whereupon the bool; 1d will be retracted in its turn, the hoch 13 now at the back hooh for engaging the wett coming trom large bobbins arr :a h side ofthe loom.

'lhese wette may be presented to the hooks in any suitable mer, tor example by -means ot the device illustrated in Fig. 6 in which the wett thread 22 passing. 'do `from a bobbin, passes into an e e 23 bred to a xed part ot the loom behind the lay 2t and into an eye 25 termed in the end ot a vertical bar 26 capable of be n@ raised so as to bring the thread 22 above "l level ot the ledge ot the lay at the moment when the shuttle has nearly moved out ol the shuttle box, in order that the thread shall be situated in the path ol the hoolr i3 whichcan then engage and draw it along.

The movement of the bar 26 may be produced at the pro er time by means ot a lever 2( upon which t 's bar rests, the said lever being raised and lowered by a cam mounted on one or the rotating shafts-ot the loom, or by any other suitable means; the lowering et the seid lever bringing the threadbetween the tell or the cloth and the eye into a notch 28 termed in the ledge ot the in order to allow the shuttle to pass at the u -ging et its @ich ther devices arranged in this manner at the two ends ot the lay may be used tor the same purposes. Likewise a plurality et distribution bars ot the d indicated by 26, may be arranged on each side of the loom and worlr in determined order in order to allow of weaving in colours; these devices may be operated by jacquard apparatus or other apparatus.

liilrevn'ise any number of wett threads may be engaged at one and the same time by one or the hooks, for the purpose et producing varied eilects.

lt is to befunderstood that modications, changes and improvements may be made in the improved shuttle without thereby departing treinv the nature of this invention, with the object or provi a constructional form of the improved s uttie having hoolrs actuated by a movable mechanism which operates by its inertia under the action ot the blow given to the shuttle at each ich. p What l claim is:

l. A shuttle enabling any loom to operate as a loom with a continuous wett feed, comrisin a shuttle body, and means carried y sai body andA ha thread hoo terthe nurv minating erteriorly of the ends oi the body and movable endwise thereof by inertia, 4

whereby as the body is propelled in alternate directions, the hooks will by inertia, be alternately moved into operative and inoperative positidns. y

v2. A shuttle enabling any loom to operate as a loom .witha continuous weft feed, comprising a shuttle body, means carried by' said body and having thread ooks terminating exteriorly of the ends of the body and movable endwise thereof by inertia, whereby as the body is propelled in alternate directions, the hooks wil by inertia, be alternately moved into operative and inoperative positions, and resilient means urging the hooks away from their extreme operative positions.

3. A shuttle enabling any loom of the type having picker mechanism and a lay to operate as a loom with a continuous weft feed, comprising a shuttle body, means carried by said body and having thread hooks terminating exteriorly of the ends of the body and movable endwise thereof by inertia, whereby as the bod is propelled in alternate directions, the ooks will by inertia be alternately moved into operative and inoperative positions, resilient means urging the hooks away from their extreme operativevpositions and latch means for securing said hoolrs in operative ositions on the body and disposed for re ease bythe lay prior to each operation of the picker mechanism.

t. A shuttle having a body, and an element movable endwise ofthe body and terminatin at its ends in hooks which project exterior y oi the body as the element moves relatively thereto, whereby as the shuttle is ropelled in alternate directions by blows imparted thereto, the device will, by inertia, be shifted endwise or the bod to retract the forward hook, considered re atively to the direction ci travel or the shuttle by any blow, and extend the rear hook for engagement with the wett.

.5. A shuttle having a body, an element movable endwise of the body and terminating at its lends in hooks which project exteriorly of the body as the element moves relatively thereto, whereby as the shuttle is propelled in alternatpJ directions by blows imparted thereto, the device will, by inertia, be shifted endwise of the body to retract the forward hook, considered relatively to the direction ol travel of the shuttle by any blow, and extend the rear hook for enga ement with the weft, resilient means or urging the element to an intermediate position and means for latching the element in its extreme endwise positions to which it is forced by inertia at the start of each travel ot the shuttle disposed' for-automatic release at the end of each travel.

6. .h shuttle enabling any loom to operate iso as a loom with a continuous weft feed, comprising a shuttle body, means carried bysaid body and having thread hooks terminating exteriorly of the ends of the body and movable endwise thereof by inertia, whereby asthe body is propelled in alternate directions, the hooks will by inertia,` be alternately moved into operative and inoperative positions, and resillent means urging the hooks away from their extreme operative positions, said element being shorter than the shuttle body whereby when in said intermediate position both hooked ends will be' disposed intermediate the ends of said body for protection during the application of driving blows to the body.

7 A shuttle for loom of the type having a lay and picker, mechanism, said shuttle comprising a body, an element movable endwise of the body and terminating at its ends in hooks which project exteriorly of the body as the element moves relatively thereto,

whereby as the body is propelled in opposite directions by the blows of the picker mechan1sm,.the element will, by inertia, be shifted endwise of the body to retract the forward hook, considered relatively to the direction of travel of the shuttle by any blow, and extend'the rear hook for engagement with the weft thread, resilient means for urging the element into an intermediate position, means for latching the element in its extreme endwise positions to which it is forced by inertia at the start of each travel of the shuttle, said latchin means being exposed for release by the ay, as it advances in beating up the weft thread just laid.

In testimony whereof I affix my signature, in presence o two witnesses.

MEIEN CRESPINY.

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