US1361839A - Feeler-loch - Google Patents

Description

C. ["LDRAPER AND J. NORTHROP.

FEELER LOOM. APPLICATION HLED NOV. 1, 1919.

1,361,839. Patented Dec. 14, 1920.

3 SHEETS-SHEET I.

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C. H. D'RAPER AND J. NORTHHOP.

mm LOOM. I APPLICATION FILED NOV. 1, 1919. .1,361,$39 Patented Dec. 14, 1920. a SHEETS-SHEET 2.

C. H. DRAPER AND J. NORTHHOP.

FEELER LOOM.

APPLICATION FILED NOV. 1, 1919.

1,3 1, 39 Patented Dec.14,1920.

3 SHEETS-SHEET 3.

CONNECTIONS BETWEEN WP DETECTOR AND SHIPFER LEVEL lJlTE.

AfiSIGNORS T0 HGPEDALE MASSACHUSETTS, A. COBPOlM-Jtltllll (ll.

ltING GUMIPANY, laASlSAClETUSl-THTE 0F MILFORD,

FEELER-LOO1VL original application filed May 1, 1916, Serial No. 941,66? Tl'iivicled and this application filed November 1 Serial No. 335,006.

To all whom it may concern:

lie it known that We, CLARE l -l. DnArnn and Jonas NORTHROP, citizens of the United States, residing at lFlopedaln-a, in the county of lt orcester and Commonwealth of Mas sachusetts, have invented certain new and useful limprovements in Peeler-Looms; and we do hereby declare the following to be a full, clear, and exact description. of the in vention, such will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to an improvement in feeler looms and more particularly to an improvement in mechanism for preventing the occurrence of mispiclrs and double picks.

were replenishing looms employed in the production of high grade fabrics are commonly provided with filling teeler mechanism for the purpose of preventing the weft or filling in the active shuttle from becoming entirely exhausted, so as thereby to eliminate the weaving of short wetts or filling threads into the cloth. Such looms are known as 'li'eeler looms. lit sometimes happens that during: the operation of even a teeler loom, short wetts occur thereby causinn a blemish in the cloth. When only a short oft or lilling; islaid in one shed, a ionditmn obtains which. is lrnown in the art as a misguclrg and when a short wett or ti ing is laid in the same shed with a complete \vctt, a condition obtains which is known in the art as a double pick. The object of the present invention is to produce a loom in which the occurrence of m'spiclrs or double picks is prevented.

this cause of the occurrence of double pints during the operation of teeler looms is the fact that after the filling or weit replenishing operation, the fillingend extend ingfrom the hopper to the salvage of the cloth (this filling end being known as the incoming filling end) is liable to loreak and snap into the shed before it is caught and out near the selvage by the temple thread cutter. The feature of the invention which prevents double picks from this cause consists of temple cutter which is located on the we'tt replenishing side of the loom and which operates positively-being controlled ll atentod lllec. let, ltmtl.

in its operationby the movements oft/he lay to cut the incoming filling end at the beginning; oil or during the second return beat or backward movement of the lay after replenishment, that is, as soon as the first thread laid in the warp after replenishment is engaged and held. by the warp on the first shedding operation succeeding replenishment. This feature of the invention is not restricted to teeler looms, but may be employed in connection with any type 01" weft replenishing loom.

The features of the invention "for prevent ing the occurrence of mispiclrs and double picks during the operation of a ieeler loom are described in the following specification and particularly pointed out in the appended claims.

in the accompanying drawings illustratinn the preferred form of the invention, l igure l is a plan oil a portion 01. the weft replen shing; side of the loom, showing; the in'iproved temple thread cutter, with the filling detector located adjacent the teeler thread parting and clamping mechanism; Figs. 2, 8 and illustrate the operation of the temple thread cutter, llig. 2 showing the normal position oi. the parts, l showing the positions of the parts on the lirst beat-up of the lay after weft replenishment, l showing the positions of the parts on the second return or backward heat of the lay atter weft replenishment; llig. 5 is a plan illustrating the various features of the invention.

The feeler loom to which the features of the present invention are applied may be of any usual or preferred form. The loom illustrated in the drawings comprises a hreast beam 5 on the right-hand end of which is secured a bracket 6 which supports the'hopper and other parts of the weft replenishino, mechanism W. The lay 7 is mounted for oscillatory movements toward and from the breast beam. Mounted on the breast beam is the usual temple indicated at 8. Fulcrumed in suitable journals secured to the front side of the loom andeX- tending transversely thereof, is the change or rock shaft 9 connected. at one end with the weft replenishing mechanism W. When the filling feeler mechanism indicates predetermined or critical exhaustion of filling on the bobbin in the active shuttle, the rock shaft 9 is adapted to be oscillated to set in operation the weft replenishing mechanism. The construction of the parts above enumerated and their mode of operation, together with other parts of the loom necessary to a disclosure of the present invention, are welldznown to those skilled in the art. I

' The feature-of the invention which prevents double picks by severing the incoming filling end before it can break and snap into the shed, consists of an improved temple thread cutter which is adapted to operate upon the incoming filling end on the second return or backward beat of the lay after the replenishing operation. This temple thread cutter comprises a longitudinally movable or reciprocatory cutting member 10 and an oscillatory member 11. The cutting edges of these members are so located that when they are in normal open position, any filling end extending from the fell of the cloth toward the replenishing endof the loom is in the path of their cutting move ment; The member 10 is somewhat" elongatedin form, is mounted upon the temple 8 contiguous to the outer side thereof, and is retained in position by two pins 12 and 13 projecting laterally from the temple. These pins are received respectively in elongated slots 14 and 15 .in the cutting member 10. The slot 15 is provided with a recess or shoulder. 16 which is adapted to receive the pin 13 when the cutter is in normal position. The member 10 is retained in normal position by means of a spring 17 secured at one end to an eye 18 formed on the forward end of the member 10, and at the other end to a pin '19 fastened to the temple. It will be observed that the member 10 has a slight pivotal movement on the .pin- 12,and that the spring 17 is sorsituated with respect to the line connecting, the pin 13 and the pin 12 that, whenever the member 10 is moved forward, and'the recess 16 is thereby brought opposite the pin 13, the spring 17 will act to draw the forward end of the member 1O upwardly until the pin 13 is received in'the recess 16'; I

The oscillatory'cutting member 11 is pivotally mounted on a pin 21 projecting laterally from the rearward end of the recip-. rocatoryv cutting member 10. The oscillato-ry cutting member is provided with a cam slot 22 situated above the pivot 21. The rearward end of' this slot registers with the slot 14: in the member 10, when the cutting members are in normal position, as shown in Fig. 2, and the forward end 23 of the slot 22' is formed somewhat at right angles with; the rearward end. The pin 12 pro jects. through; the cam slot 22. When the cutting member 10 is movedrearwardly toward the lay, the cutting member 11 is carried with it inoperatively until the forward side of the part 23 of the slot 22 comes into contact with the pin 12. The continued forward movement of the members 10 and 11 causes the forward side of the part 23 of the slot 22 to bear against the pin 12, thereby oscillating the mcmber 1.1 on the pin 21. and closing it rapidly against the cutting edge of the member 10.

The improved temple thread cutter is adapted to be brought into operation upon an actuation of the rock shaft 9 by means of the filling feeler mechanism, and for this purpose it is so constructed that it depends for the preliminary movement which shifts it from normal to a secondary position upon the action both of the rock shaft and of the v lay. The subsequent movements necessary to bring the thread cutting members into final position for the thread cutting operation are effected by means of a cam member 25 which is loosely pivoted at the hole or aperture 20 therein on a pin 26 projecting laterally from the reciprocatory cutting member 10. The rearward end of the cam member 25 projects downwardly as a hunter 2?, and its forward end extends toward the front of the loom and is provided with a hookshaped lug 28 which normally rests upon a shoulder 29 formed on a cutter arm 30 secured to the rock shaft 9.

lVhen the filling feeler mechanism has indicated critical exhaustion of filling, and the rock shaft 9 is turned anti-clockwise, viewing Fig. 4-, the arm 30 moves to the left and the shoulder 29 draws out from under the hook 28, and thereupon the cam member 25 swings on the pivot 26 under the tension of the spring 31 connected at one end to the arm 30 and at its other end to the member 25, until a cam surface 32 formed on the cam member comes into on gagement with a stop pin 33 fast in the temple. The cam member 25 is then left substantially in the position shown in Fig. 3.

()n the beat-up of the lay during weft rcplenishrnent. inasmuch as the arm 30 still remains in the position shown in the dotted lines in Fig. 3. the engagement by the lay with the hunter 2? is ineffective. On the first backward beat of the lay, however, after replenishment. the arm 30 swings to the right again and the under part of the shoulder 29 engages the upper surface of the lug 28 at the end of the member 25, as shown in full lines in Fig. 3. On the next forward beat of the lay, which is the first filling feeling beat after replenishment, the lay comes into engagement with the hunter 27' and moves the member 25 forward, forcing the cam surface 32 against the stop pin 82-3 and the forward end of the member 2:) under the shoulder 29. T hereupon, the upper side of the aperture 20 in the member ll O 25 is forced against the pivot pin 26 and moves it downwardly, carrying with it the forward end of the reciprocatory cutting member 10, thereby turning the member 10 on the pin 12 until the recess 16 is clear of the pin -18. All the parts of the thread cutter are now in theposition shown in full lines in 3. Upon the return or next backward beat of the lay, which is the second return beat after replenishment, the disengagement of the lay from the hunter 27 permits the spring 17 to draw the cutting member 10 rearwardly. The rearward movement of the member 10 carries the oscilla tory member 11 with it until the part 23 of the cam slot 22 reaches the pin 12, whereupon the member 1]. is caused to oscillate on the pin 21, thereby closing the cutting edge of the member 11 against the cutting edge of the member 10 and severing the filling ends extending from the selvage of the cloth outwardly toward the replenishing mechanism. T he positions of the parts of the cutter at this time are shown in Fig. l, l Vhen the shuttle reaches the filling feeler side of the loom, and the lay beats forward on the next filling feeler beat, it strikes a projection 34 depending from the under side of the reciprocatory cutting member 10, and carries the member 10 toward the breast beam until the recess 16 is brought opposite the pin 13, whereupon the action of the lay upon the member 10 (cooperating with the spring 17) lifts the forward end of the member 10 until the pin 13 is received in the recess 16. At the time that the lay strikes the projection 34, it also strikes the hunter 2'? of the cam member 25 and forces it forward, causing the forward end of the member 25 to ride up over the shoulder 29, until the book 28 rests thereon in its normal position;

Although the thread cutter described above is intended primarily to sever the fillin end left by the incoming bobbin, that is, the incoming filling end which extends from the selvage tothe hopper, in order to pre vent its breaking and snapping into the shed and thereby causing a double pick, this thread cutter also operates incidentally to sever the filling end left by the outgoing bobbin, that is,that part of the outgoing filling end which extends from the selvage to the usual. feeler thread parting and clampin;- mechanism. P, which is located adjacent the weft replenishing mechanism and severs the out oing filling end relatively near the shuttle.

t will. be observed from the foregoing description of the mode of operation of the temple thread cutter that the liability of the incoming filling end being broken and snapped into the shed is practically eliminated. It is obvious that the incoming filling end must not be cut on the first pick of on the next shedding.

the shuttle away fromthe weft replenishing side of the loom because there would then be nothing to hold the filling until it had been beaten up against the fell by the reed and been caught by the warp threads It is not desirable that the thread cutter should be permitted to operate upon this filling end while the lay on its forward center. Accordingly, the thread cutter of the present invention is constructed to cut the incoming filling end during the second return beat of the lay after replenishment.

The present application is a division of our copending application, Serial No. 94,667, filed lviay 1, 1916.

Haw-ring thus described the invention what is claimed is:

l. A feeler loom having, in combination, lay, a breast beam, a weft replenishing rhanisin, a filling iieeler mechanism, conne ,tions let/ween the weft replenishing mechanism and the filling feeler mechanism inrzluding a rock shaft, and a thread cutter constructed and arranged for actuation by the lay and by the rocli shai't so as to move from normal to secondary position on the in dication of critical exhaustion of filling by the filling feeler mechanism, to remain in seconds y position during the next forward beat of the lay, to be moved to a third position. on the next forward beat of the lay, and to out the outgoing and incoming filling ends extending from the selvage toward the weft repleniiiing mechanism on the next back ward mat of the lay,

A teoier loom having, in combination, a lay, a breast beaiin, a weft replei'iishing mechanism, a filling feeler mecl anism, connecting in uns between the two mechanisms, a temple, a thread cutter comprising a reciprocatory cutting member mounted on the temple, an oscilhitory cutting member mounted on the reeiii'oeatory cutting member, and a cam inemb and onnections between the conni. i means and the cam member, the parts of the thread cutter being constructed and arranged-to perform their cutting operation on the third backward beat of the lay after the indication. of critical exhaustion oi? filling.

3. A weft replenishing loom having, in combination, a hay, weft replenishing mech anism, and a thread cutter located on the 'replenishing side of the loom having provision by virtue of which. its operation is deferred until the second. backward beat of the lay after replenishment to sever the filling extending outwardly from the selvage.

i. A weft replenishing loom having, in combination, a lay, a breast beam, a weft replenishing mechanism, a rock shaft, a temple, and a thread cutter comprising a reciprocatory cutting member, an oscillatory cutting member, a cam member, and connections between the rock shaft and the cam member, the reciprocatory cutting member being I mounted on the temple and the oscillatory cutting member and the cam being mounted on the reciprocatory cutting member, the cam member being adapted to be moved from normal position to a secondary position when the parts of the weft replenishing mechanism are positioned to cause weft replenishment on an actuation of the rock shaft, and to be moved to a third position on the first forward beat of the lay after replenishment to bring the reciprocatory cutting member into position to cooperate with the oscillatory cutting member to cut the thread extending from the hopper to the selvage on the next backward beat of the lay.

5. A feeler loom having, in combination, a filling feeler mechanism, a weft replenishing mechanism, connections between the two mechanisms including a cutter arm, a breast beam, a lay, a temple and a temple thread cutter comprising a reciprocatory cutting member mounted on the temple, an oscillatory cutting member, a cam member, the two latter members being mounted on the recip rocatory cutting member, connections between the cutter arm and the cutter members, pin and slot connections between the reciprocatory and oscillatory cutting members, and means for moving the thread cutter members toward the lay during the thread cutting operation, the reeiprocatory cutting member and the cam member having provision whereby, on the next forward beat of the lay after the cutting operation, the cutter members are restored to normal position.

6. A weft replenishing loom having, in combination, a lay, a weft replenishing mechanism, a rock shaft, and a thread cutter constructed and arranged to be actuated by the rock shaft and by the lay to be moved from normal to a secondary position on the beat of the lay resulting in an actuation of the rockshaft, to remain in secondary position on the next beat of the lay, to be moved to a third position on the next beat of the lay, and to perform the thread cutting op eration on the'third backward beat of the lay after the actuation of the rock shaft.

7. Aweft'replenishing loom having, in combination, a breastbeam, a weft replenishing mechanism, a rock shaft, an arm fast thereon, a lay, and a thread cutter mounted on the breast beam comprising a reciprocatory cutting member, an oscillatory cutting member, a cam member loosely connected with the rock shaft arm adapted to more from normal to secondary position and to be disconnected from the arm on an actuation of the rock shaft and to move the reciprocatory cutting member from normal to a secondary position on its engagement with the lay on the forward beat of the latter after the weft re 'Jlenishing operation, and means for causing the reciprocatory and oscillatory cutting members to perform their cutting operation upon the disengagement of the lay from the cam member.

8. A weft replenishing loom having, in combination, a lay, weft replenishing mechanism, and a thread cutter comprising a reciprocatory blade, an oscillatory blade, and means for actuating the blades having provision by virtue of which their actuation is deferred until the second backward heat of the lay after replenishment to sever the filling extending outwardly from the selvage.

9. A feeler loom having, in combination, a lay, a breast beam, a weft replenishing mechanism, a filling feeler mechanism, said mechanisms being mounted on opposite sides of the loom, a thread cutter mounted on the weft replenishing side of the loom constructed and arranged to cut the outgoing and incoming filling ends extending from the selvage toward the replenishing mechanism, on the second backward beat of the lay after weft replenishment, and a filling detector mounted on the breast beam and situated between the thread cutter and the weft replenishing mechanism.

10. Afeeler loom having, in combination, a lay, a breast beam, a weft replenishing mechanism, a filling feeler mechanism, a thread cutter situated on the weft replenishing-side of the loom and adapted to cut the outgoing and incoming filling ends near the selvage at one operation on the second bacle ward beat of the lay after weft roplenishment, and a filling detector mounted on the side of the loom remote from the filling feeler mechanism.

11. A feeler loom having, in combination, a lay, a breast beam, a weft replenishing; mechanism, a filling feeler mechanism, and a thread cutter situated on. the weft replenishing side of the loom and adapted to cut the outgoing and incoming filling ends near the selvage on the second backward beat of the lay after weft replenishment.

CLARE H. DRAPER. JONAS NORTHROP.

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