US2202186A - Filling replenishing loom - Google Patents

Description

May 28, 1940. c. D. BROWN FILLING REPLENISHING LOOM Filed July 22, 1959 2 Sheets-Sheet 1 INVENTOR'. @EL D. 5E@ WN.

` ATTORNEY Maj 28, 1940. C. D. BROWN y 2,202,186

FILLING REPLENISHING LOOM INVENTOR. @AEL @EOM/N.

'SYM

ATTORNEY.

Patented May 28,4 1940 UNITED STATES PATENT oFFicE FILLING REPLli'fNISI'IINGr LOOM Carl D. Brown, Hopedale, Mass., assignor to Draper Corporation, poration of Maine Hopedale, Mass., a cor- Application July 22, 1939, Serial No.l 286,010

10 Claims.

such carriers attached to a holder, usually on y the magazine. The outgoing filling ends are parted in two different places and are clamped adjacent the shuttle box. The lling ends that are attached to the said holder become the incoming lling ends as their respective filling carriers are put into operation. The incoming filling ends are commonly parted at only one point, usually adjacent the cloth selvage.

The outgoing and incoming lling ends must be so controlled or withdrawn away from the moving parts of the loom as to prevent their being woven into the cloth. The incoming lling end is particularly diicult to control, it being relatively long and so located that it can easily fall or be blown into the shuttle box. It is with the withdrawing of this incoming end that the present invention is primarily concerned.

A principal object of the present invention is to provide an automatic filling replenishing loom having a lay, magazine and parting means for the incoming filling ends, as aforesaid, and which shall also have gravity-operated means for withdrawing the parted incoming filling ends, and means operating as each such lling end is withdrawn to move or return such gravity means into withdrawing relation to the next succeeding filling end, whereby such filling ends are successively withdrawn as they are formed and parted.

The foregoing and other objects ofthe invention are accomplished in the construction illustrated on the accompanying drawings, of which:

Fig. l is a perspective view of the replenishing side of a loom having the preferred embodiment of my invention applied thereto; y

Fig. 2 is a detail view, in section'and to an enlarged scale;

Fig. 3 is an end view, partly in section, showing said preferred embodiment; and

Fig. 4 is a View similar to Fig. 3 but showing (ci. 13a-25s) --the parts as they appear ata laterpoint in the cycle of the operation of the loom.' Y l y The drawings illustrate only such part of a `complete loom as is necessary to an understanding'of the present invention, the partsI and mechanismsv not shownl being of usual construction forming no part of the present invention. In addition, certain of the parts that are shown are of usual construction, they being of the present invention only as examples of elements in the combination defined inV the appended claims. Such usual parts include the reciprocating lay which comprises a lay beam l having a reed 2 and a shuttle ybox 3 thereon. The shuttle box 3 is at the replenishing end of the lay, which in Illi the present instance is at the right hand side of 4the loom. f

The warp threads W feed forwardly in the loom and are separated to form a shed as shown by Fig. 1. `A shuttle 4,' carrying a lling carrier such as bobbin 5, is picked from side to side of the loom along the lay beam l to lay picks of filling thread in the successively formed shed openings. The shuttle picking mechanism may includethe usual picker stick 6. The lay re-y ciprocates forwardly and rearwardly of the loom and vin so reciprocating the reed 2 beats the picks of filling into the fell of the cloth C being Woven by the loom. When the filling supply on the filling carrier 5 is substantially exhausted, a fresh lling supply is automatically provided by the replenishing mechanism.

The. replenishing'mechanism may be of any suitable usual construction, the drawings frag- Amentarily illustrating the well-known bobbin v' changing mechanismA including a magazine 1 and va transferrer 8. The magazine 'l contains a supply of reserve filling carriers 5' and is rotated stepv by step-to successively present such filling carriers in position to be transferred to the shuty40 tle Il. The filling ends f leading from the re` serve carriers 5 are attached to a holder which is so related to the magazine as to be a part thereof. The particular holder 9 for the ends f is iixeddirectly on the end of the magazine l. '45

The filling end f from the filling carrier 5' in transferring position extends lengthwise of the shuttle box 3 above the same.

When so required by mechanism not shown,

the transferrer 8 transfers the carrier 5' in trans- I ing thread projecting from the cloth selvage S and extending to the holder 9. The thus formed filling end F is known in the art as the incoming filling end. The end F is parted between the magazine and the cloth selvage, as by the usual temple thread cutter I0 located adjacent the cloth selvage. The parted filling end is quite long and is so located that, `if uncontrolled, it is apt to fall or be blown onto or into the path of the shuttle 4 and be carried into the shed, thus forming a defect in the cloth.

The present invention provides a simple and efficient gravity-actuated means for successively withdrawing the filling ends F away from the lay and shuttle box, and means operating promptly after each such withdrawing operation to return the gravity means into withdrawing relation to the next succeeding thread. Such means thus removes each filling end F, as soon as it is parted by the temple thread cutter I0, and thereby prevents the end from being drawn into the cloth. The prompt return of the gravity means insures that it will always be ready to withdraw the next incoming lling end as soon as the latter is formed and parted.

The aforesaid withdrawing means, being gravity actuated, may be simple in construction. The preferred form shown comprises a weight I I having means such as hook I2 by which it is adapted to be suspended from the filling end f which leads from the filling carrier 5 in transferring position. The hook I2 engages over such filling end and thereby supports the weight II. Thus, during normal loom operation, the weight and hook occupy the position shown by Figs. 1 and 3. In this position, the weight is adjacent the upper, rearward end of a guide I3.

The particular guide I3 shown consists of a tube which extends from a point above the outer or right hand end of the shuttle box 3 forwardly and downwardly to a point well below and in front of the lay beam I. The weight II is freely slidable in the guide I3 and the latter is slotted longitudinally at I to permit the hook I2 to project therefrom. The guide I3 is fixed on a bracket I5 which in turn is fixed on the stud IB on which the transferrer 8 is pivoted. A suitable retaining hook I'I may be carried by the bracket I5.

The weight II remains suspended from the end f while the filling carrier 5 from which such end leads is transferred to the shuttle 4 and the shuttle is picked. The weight thus provides a yielding tension on the filling thread during the first pick after transfer. The weight continues to remain suspended from the end f until after the latter has become an incoming end designated F. as shown by Fig. 1. Then, `as soon as this end F is cut by the cutter IIJ, the weight slides by gravity forwardly and downwardlyv in the guide I3, the hook I2 pulling the cut end forwardly and downwardly into the hook I'I. When so positioned, the ends F are held against any possibility of being woven into the cloth.

' The preferred embodiment of means for returning the weight I I into withdrawing relation to the next succeeding filling end f comprises means for throwing the weight upwardly and rearwardly along the guide I3. As shown, the throwing means may consist of a spring I3 and a member I9 for stressing the spring. The spring I8 is an open coiled spring positioned in the lower end of the guide I3 and supported at its lower end by a plug 2l). When the weight I I slides by gravity as above described it comes to rest on top of the spring IB as shown by Figs. 2 and 4. The member I9 is a lever which is pivoted at its upper end in a bracket 2| on the lay beam I and which has its lower end turned laterally at 22 to compress the spring I8 by engaging the hook I2 and pushing the weight II down.

The lever I9 is acted upon by a torsion spring 23 which is arranged to yieldingly raise the lower end 22 of the member. When the lay is back, as in Fig. 4, the end 22 israisedby spring 23 to the position determined by a stop 24, the stop being xed to the upper end of the lever I9 and engageable with the bracket 2I. As the lay next moves forwardly from its Fig. 4 position, the end 22 engages the guide I3 and slidesdownwardly along the same, the lever I9 pivoting in bracket 2| against the action of the spring 23. With the weight II in its Fig. 4 position, the downwardly moving end 22 engages the hook I2 and pushes the hook and weight downwardly, thereby compressing the spring I8. At a point near the end of the forward movement of the lay, the end 22 is cammed rearwardly away from the hook I2 by a cam 25 on the guide I 3. Thereupon, the compressed spring I8 throws the weight II upwardly and rearwardly'in the guide I3.

The aforesaid throwing of the weight I I by the spring I8 occurs on the first beat of the lay following each downward sliding, or withdrawing, action of the weight. At all other times the end 22 slides idly on the guide I3, the weight being at the upper end of the guide. The weight is thrown to the upper rearward end of the guide, and in so moving an inclined portion 26 on the hook I2 rides over the next succeeding filling end f, which is the end from the filling carrier 5' in transferring position. After so moving, the weight slides forwardly until the hook I2 engages over the last said end f. At this time, the hook I2 and weight I I are completely returned into withdrawing relation to the next succeeding filling end and so remain until after the next transfer, whereupon the withdrawing action is repeated as above described. A fixed hook 2'I projects toward the left from the guide I3 and prevents the weight from pulling the filling ends f forwardly before they are parted.

Having fully disclosed the preferred embodiment of my invention, I claim:

l. In an automatic lling replenishing loom, the combination of the reciprocating lay, a magazine for holding reserve filling carriers with the filling ends from such carriers attached to the magazine, means for parting said filling ends adjacent the cloth selvage, gravity-actuated means -for successively withdrawing each said lling end away from the lay after' it is parted, and means operating after each withdrawing operation of said gravity-actuated means to move said gravityactuated means into engagement with the next succeeding filling end.

2. In an automatic filling replenishing loom, the combination of the reciprocating lay, a maga- Zine for holding reserve filling carriers with the filling ends from such carriers attached to the magazine, means for parting said filling ends between the cloth selvage and the magazine, a gravity-actuated weight adapted to successively withdraw each said filling end away from the lay after it is parted, and means operating after each withdrawing movement of said weight to move the latter into withdrawing relation to the next succeeding filling end.

3. In an automatic filling replenishing loom, the combination of the reciprocating lay, a magazine for holding reserve lling carriers with the lling ends from such carriers attached to the jacent the cloth selvage, a gravityfactuated weight having means for engagement with one of said lling ends, guide means along which said weight moves to withdraw said llingv end away from the lay after it is parted, and means operating after each withdrawing movement of said weight to move the latter into engagement with the next succeeding illing end.

4. In an automatic filling replenishing loom, l

holding reserve lling carriers with the filling ends from such carriers attached to the magazine, said magazine being adapted to successively present said lling carriers in transferring position, a weight adapted to be suspended from, the

Afilling end from the lling carrier in transferring position to thereby yieldingly tension such iilling end, and means operating after each replenishing operation to suspend said weight from the next succeeding filling end.

5. In an automatic filling rep-lenishing loom, the combination of the reciprocating lay having a shuttle box at the replenishing end thereof, a magazine for holding reserve filling carriers, a xed holder for the lling ends leading from said filling carriers, means for parting said filling ends adjacent the cloth selvage, gravity-actuated means for successively withdrawing each said filling end forwardly away from said' shuttle box after the. iilling end is parted by said parting means, and means operating after each withdrawing operation of said gravity-actuated means to move said gravity-actuated means into engagement with the next succeeding end at a point above the outer end of said shuttle box.

6. In an automatic filling replenishing loom, the combination of the reciprocating lay, a magazine for holding reserve filling carriers with the filling ends from such carriers attached to the magazine, means for parting said lling ends between the cloth selvage and the magazine, a weight for successively withdrawing the parted lling ends away from the lay, a guide along which said weight moves by gravity in withdrawing said lling ends as aforesaid, and means operating after each withdrawing movement of said weight to throw said weight along said guide into withdrawing relation to the next succeeding filling end.

7. In an automatic filling replenishing loom, the combination of the reciprocating lay, a magazine for holding reserve filling carriers with the lling ends from such carriers attached to the magazine, means for parting said filling ends between the cloth selvage and the magazine, a weight having a hook by which it is adapted to be suspended from the filling end'from the filling carrier in transferring position, a guide along which said weight moves by gravity to withdraw the last said filling end away from the lay after. such filling end is parted as aforesaid, and means operating after each withdrawing movement of said weight to throw said weight along said guide and engage said hook with the next succeeding filling end. Y

8. In an automatic filling replenishing loom, the combination of the reciprocating lay having a shuttle box at the lreplenishing end thereof, a

magazine for holding reserve filling carriers and successively presenting the same in transferring position, a holder for iilling ends from said carrier, means for parting said iilling ends between the cloth selvage and said shuttle box, a weight having a hook by which it isi adapted to be sul.- pended from the lling end from the filling carrier in transferring position, a guide leading forwardly and downwardly from a point adjacent the last said iillingend, said weight being adapted to move along said guide by gravity towithdraw the last said filling end forwardly and downwardly after it is parted, a spring arranged to throw said weight upwardly and rearwardly along said guide into engagement with the next succeeding lling end, and means operated by the lay for actuating said spring after each withdrawing movement of said weight.

9. An automatic bobbin changing loom having means for parting filling ends projecting from the cloth selvage and means for withdrawing the partedfllling ends from the moving parts of the loom, the last said means comprising a weight adapted to successively'engage said illing ends and withdraw the same forwardly and downwardly of the loom after they are parted, a guidel along which said weight moves by gravity towithdraw said filling ends as aforesaid, and means operating after each said withdrawing movement of said weight to return said weight along said guide into withdrawing engagement with the next succeeding lling end.

10. An automatic bobbin changing loom having means for parting filling ends projecting from the cloth selvage and means for withdrawing the parted filling ends from the moving parts of the loom, the last said means comprising a weight

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