US1850305A - Temple thread cutter for filling replenishing looms - Google Patents

Description

March 22, 1932. v. LINDsJo 1,850,305

TEMPLE 'THREAD GUTTER FOR FILLING REPLENISHING LOOMS I Filed April' 16, 1931 2 Sheets-Sheet l INVENToR' Jlgl ATTORNEY Mal-rch 22, 1932.

v. LINDsJo I TEMPL THREAD CUTTER FOR FILLING REPLENISHING LOOMS ZSheets-Sheet 2 Filed April 16. 1951 l. m( ATTORNEY Patented Mar.` 22, 1932l ,g *UNITED STA .T1-:s- PAfri;N'r orfFlcE l; VERNER LINDSJOF.HOPEDALEMASSACHUSETTS, `ASSIGNOR TO DRPER CORPORA- TIONDF HOPEDALE, MASSACHUSETTS, A CORPORATION'OF MAINE satisfactorily.

TEMPLE THREAnouTrrE-a Foa FiLLING aan.nmsnnvefr Looivrs Appncatien mea 'April 16,

This invention relates 'tov filling replenishinglooms andis more particularly directed to a temple thread cutter for parting the old or outgoing filling end" and the new or incoming filling end close to the clothselvage on replenishment of filling;l 4.

It hasbeen proposed heretofore to yprovide a tcmplethread cutter for filling replenishing looms, and in order to prevent unnecessary wear of the cutting instrumentalities it has been further proposed to provide atemple thread cutter inv which vthe movablecutting n member shall be held in an inoperative position during normal weaving operations and will act on call for replenishment of filling to part the old or outgoing filling end and the new or incoming filling end close to the cloth selvage. 'y

Some at leastof the heretofore proposed temple thread cutters rhave been'provided with a latch or catch for holdingthe thread cutter in an inoperative position until, on call for replenishment of filling, the latch or catch has been tripped to ypermitjthe thread cutter to move to operative position and act for aplurality of picks or cutting operations to part the two threads, and some of these proposed temple thread cutters have operated As is well known, the temple and its thread cutter act,V along the cloth selvage in a position where, in many looms at least, the parts are crowded and interfere withthe manipulations of the loom by the loom attendant so thatany furtherinstallation ofv parts between the temple and lshuttle box introduces objections.

One ofthe objects of the present invention is to provide a temple thread cutter of theintermittent type which shall be simple in construction,'effective in operation and at the same time not introduce an objectionable number of parts and which may act on call for replenishment of lfilling to partthe `old or outgoing filling end and the new or incoming filling end close to theselvage-and then become inoperative@ y n In accordance wi h the present invention the temple is provided with a thread cutter which is movable relative to the temple head 1931. serial no.4 530,476@

and is normally held in aninoperative position by a resilient member or spring and'is .movedinto operative position by another resilient member which, on call for replenishment of filling, acts in opposition to the normally acting resilient :member or spring to move the thread cutter to an operative position and return the thread cutter to operative position after each of a plurality of cutting'operations. l

The invention and novel features thereof will best be made clear from the following description and accompanying drawings of one good form thereof.

In the drawings Fig. l is a fore and aft section through a shuttle changingl loom Vcontaining the presen, invention, some of the parts being omitte s Fig. 2 is a perspective detail of certain features ofthe invention and the relation of parts when the thread cutter is held in a front- Ward inoperative position;

Fig. 3 is an enlargeddetail showing more particularly the resilient member for moving the thread cutter rearwardly into operative position with permissive rvfrontward movement 11p-on each cutting operation; and

Fig. 4 is a side elevation of the temple head having a movable thread cutter showing the relation of parts when the thread cutter is held in frontward inoperative position.

The intermittent temple thread cutter is shown by the Apresent drawings as associated with a filling replenishing loom of the shuttle changing type, but in certain aspects of the invention it may be employed advantageously with any of the well known forms of automatic filling replenishing looms.

The loom frame 1 may be of any usual or preferred construction suitable for the support of the operating parts, and the lay 2, which is supported on the lay swords 3, may likewise be of any desired construction. In the present embodiment of the invention the hopper or magazine L is supplied with a number of shuttles 5 containing a fresh supply offilling, and on call for replenishment of filling the lowermost shuttle in the magazine is transferred to the replenishing shuttle box which, as shown in the present instance, has a baci; plate 6 which is carried by suitable arms 7 pivotally mounted at 3 to a bracket or brackets 9 at the front of the lay, and extending downwardly from and connected to the arms 7, is a tail member 10 which, on call for replenishment of filling, is engaged by an operating member 11 as the lay moves frontwardly, thereby iraising the back box plate 6 from fits normally'lowered position to an upper position, as indicated in Fig. 1. Y

The front box plate 12 is carried by arms 13 pivotally mounted at '14 at the rear of the lay and is normally held down in its box closing position by an abutment or screw 15 carried by the arms 7 of the back box plate, with the result that when the `back box plate has been lifted as hereinbefore described, the front box plate may yield upwardly without opposition except gravity, so that the lowermost shuttle in the magazine may engage the inclined wall of the front box plate 12 and lift it for the entrance of the incoming shuttle, the end of the filling from this shuttle being secured to some fixed point, such as the magazine. The incoming shuttle discharges the outgoing shuttle under the back box plate and the filling end leading from the discarded shuttle extends from the cloth selvage. It is an obj ect of the present invention to part the old or outgoing filling end and the new or incoming filling end close to the cloth selvage.

The temple case 16 is herein shown as secured 'to the front of the loom as for Vinstance l by a stand 17 mounted upon the breast beam 18 (Figs. 1 and 2)V and mounted for'movement towards and from the front of the loom in the case 1G is the temple rod 19, which carries the temple and its associated parts.

Thot-ample lmay be of any usual and well known construction and comprises the temple head 2O formed by the temple pod 21 and the temple cap 22, as usual.

Mounted in the temple head for movement towards and from the front of the loom is a it being understood that when the thread cutter 23 is moved frontwardly by. actuation through the lay movement,'the cutter proper at 24 will act upon the thread or threads and partthe same.

Temple thread cutters of the type above generally indicated are usually under the influence of a spring tending normally to move the movable cutter into its rearward cutting position.

In the present invention the movable cutter 23 is normally under the influence of a spring 26, one end of which is coiled about a stud or pin 27 on the temple head and the other end of which engages a pin 28 on the heel 25, all acting with a tendency to yieldingly maintain the movable cutter 23 in a `V frontward inoperative position.

i In accordance with the present invention the thread cutter 23 thus normally held in frontward'V inoperative position is moved rearwardly into operative position in opposition to the stress ofthe spring 26 by a resilient` member, which is stronger than the spring 26 and is called into operation upon replenishment Vof filling.

Extending transversely of the loom at the front thereof is a detector shaft 29 which is actuated by the usual detector or feeler when lling replenishment is called, but since such detector or feeler is or may be of any usual type an illustration and description of these details are not herein necessary.

Extending rearwardly from the detector shaft 29 is an arm 30 connected by a link 31 (Fig. 1) to a transfer actuator 32 adapted to be engaged on call for replenishment of filling by a bunter 33 mountedon the lay sword 3. In other words, when the detector shaft is actuated by the detector or feeler in a clockwise direction viewing Fig. 1, the transfer actuator 32 is lifted from a lower to a higher position for engagement by the bunter 33 as the lay moves frontwardly. A spring 34 normally acts uponthe arm of Fig. 1 to maintain the detector shaft andthe transfer actuator 32 in their non-operating position, but will yield on call for replenishment of filling to permit the detector shaft and the transfer actuator 32 to assume their operating position.

Connected to the transfer actuator 32 is an arm 35 secured to the shuttle transfer shaft 36, upward from which extends the shuttle transfer arm 37, which is connected by a link 38 to a slide for moving the lowermost shuttle inthe magazine into the shuttle box on call for replenishment of filling and as the lay moves frontwardly, all of which is sufficiently shown in Fig. 1'.

Secured to the shuttle transfer shaft is a backwardly extending cam carrying arm 39 which, of course.` moves with the shuttle transfershaft, and at the rear portion of the arm 39 there is formed a cam slot 4G, which is engaged by a pin 41 on the arm 42 secured to the rocker shaft 43. f

During normal weaving operations between transfer periods the cam carrying arm 39 and the cam slot 40 will occupy the position shownv by dotted lines in Fig. 1 with the pin 41 of the arm 42 inthe lower portion of the slot, but on replenishment of filling the cam carrying arm 39 will be moved downwardly as indicatedin Fig. 1"by full lines, and the pin 41 will thereupon take position in the upper part of the slot 40 thereby acting to move the arm 42 inacontra-clockwise direction from its dotted to its full line position in Fig. land thereby turn the rocker 43 contra-clockwise. e

Secured to the rocker 43 is the resilient member 44v which extends upwardly therefrom with itsupper end in'position to engage a part Carried by the movable cutter 23 when the rocker is moved contra-clockwise on replenishment of filling. \As shown in the present instance of the invention, the upper end portion of the yresilient member 44 is positioned frontwardly of the heel 25 of the Y movable cutter, but exertsno pressure against the heel until'iilling replenishment is called.

In order to support the rocker 43 the prescent invention provides a stud or dead shaft? 46, towhich is clamped a support 47, in the rearend portion of which the rocker shaft 43 is mounted.

During normal weaving operations between replenishment of filling the spring 26 acts normally through movable cutter 23 in its frontward inoperative position and the resilient member 44 eX- erts no pressure against the heel of the cutter. When replenishment of filling is called the detector shaft 29 is rocked as usual, thereby operatively positioning the transfer actuator 32 for engagement by the bunter 33 as the lay advances or beats-up, and, on frontwa'rd movement of the transfer actuator under the conditions stated the arm 35 and perforce the shuttle transfer shaft 36 will be moved contra-clockwise to thereby transfer a shuttle from the magazine to the replenishing shuttle boX and simultaneously the cam carrying arm 39 will be moved downwardly from its dotted to its full line position indicated in Fig. 1, thereby turning the 'rocker 43 and causing the resilient member `44 which, as before stated, is stronger thanthe spring 26, to engage and press upon the heel 25 of the movable cutter, to thereby move the cutter rearwardly into operative position in opposition to the spring 26. f

As before stated the member 44 is resilient so that when theV cutter is in its rearward operative position and is moved frontwardly by contact with the lay or a part carried thereby the resilient member 44 will yield frontwardly and on retreat of the lay it will again move the cutter to operative position thereby tocut both the outgoing and `incoming filling ends. When the parts which call for replenishment of filling return to their normal loom operating position the resilient member 44 will again be moved frontwardly as the cam carryingarm 39 moves `from its full to its dotted line position of Fig. 1, thereby permitting the weaker springy 26 to again the heel 25 to hold thel are likewise controlled by the rocking move` ments of the shuttle transfer shaft 36, it fol` lows that the resilient member 44 will be moved rearwardly or to operativefposition on contra-clockwise movement, Fig. 1,A of the shaft 36'and will-remain in operative position until said shaft is .rockedV in the opposite direction and thereupon the resilient member 44 will be returned frontwardly to its inopercutter 23.

On call for replenishmenty of filling Vthe actuator 3,2,is raised into .the path of the bunter 33 and the advancing lay turns the transfer shaft 36' in a contra-clockwise direction to effect shuttle transfer and move the resilient member rearwardly into operative position through 'the meansr hereinbefore described and` thereby place the cutter 23 in its operative position to cut the thread. j Y

As the lay goes back and disengages the bunter 33 from` actuator 32, the `latter will drop butY its hook will not engage back of the catch on the lay as the latter goes back, as explained in the copending application, so Vthat the transfer shaft 36 will remain in its contra-clockwise position withthe resilient member 44 still holding the cutter in operative position and on the second beat up the cutter will again act to cut thethread.

On the third backward movement of `the-lay the hook of the actuator 32 will engage the catch on the lay sword and turn the shaft 36 ina clockwise direction thereby moving the resilient member 44 frontw'ardlyto its inoperative relation with the cutter` 23 and the latter will again act for a third ytimeto cut the threads as itis moved frontwardly vto its inoperative position by the spring 26.v

From the construction described as one embodiment of the present invention it willV be Vnoted that a simple and yet effective mechanism is provided for causing the temple thread cutter to act intermittently or periodically on call for replenishment of filling and to remain in action for a plurality lof cutting operations to thereby part both the outgoing and incoming filling ends.

What is claimed is: 1

1. In ran automatic filling replenishing loom, the combination of a loom temple having a temple head, a thread cutter mounted on the temple head for movement relative thereto, and providedwith an actuator op- -ative position with relation to thefthread 'V85 position for operation by the lay beat up movement to positively cut the thread.

2. In an automatic filling replenishing loom, the combination of a loom temple, a

thread cutter mounted on the temple for movement relative thereto and-provided with an actuating memberpositively operated by lay beat up movement to cut the thread,'a .spring Anormally acting yieldingly upon and :to hold the thread cutterina frontward inoperative position, and yielding means rendered effective on replenishment of filling for movingl the thread .cutter rearwardly, in opposition to the normally acting spring and thereafter itself yielding frontwardly asthe thread cutter is given its positive cutting operation by lay contact with the actuating member during beat up movement of the lay.

3, In an automatic filling replenishing loom, the combination of a loom temple having a thread cutter for parting the thread atthe cloth selvage, two resilient members for controlling the operative andinoperative positionV of the thread cutter, one acting on the thread cutter to hold it yieldingly in frontward inoperative position with permissive yielding movement rearwardly to operative position, and the other acting on call for 'replenishment of filling toover'come the stress of the normally acting resilient member and move the thread cutter rearwardly into operative position.

4l. In an automatic filling replenishing loom, the combination, of a loom temple, a thread cutter mounted on the temple for movement towards and from the front of the loom and provided with a lay operated actuat'or` for imparting a cutting stroke to the cutter, two spring members for controlling the operative and inoperative position of the thread cutter and its actuator, one spring member acting on the thread cutter to hold it yieldingly in frontward inoperative -position, and the other spring member rendered effective on replenishment of filling to overcome the stress o-f the normally'acting spring Ymember and to move the thread cutter and its Yactuator to rearward operative position and thereafter yielding frontwardly with the f thread cutter during its cutting strolre and then acting to return the cutter rearwardly to operative position.

5. In an automatic filling replenishing loom. the combination of a loom temple,- a thread cutter mounted onA the loom temple and actuated in its cutting stroke by laymovement, a resilient member acting to hold the thread cutter yieldingly in an inoperative position, a resilient finger normally inactive and operated on call for replenishment of filling to operatively position the thread cutter in opposition to the resilient member and yieldingly acting thereafter to return the thread cutter to operative position for a plurality of picks that the outgoing and incoming threads may be parted at the cloth selvage. r

6. In an automatic filling replenishment loom, the combination of a loom temple, a thread cutter having a heel portion actuated by lay movement, a resilient member on the temple acting normally to hold the thread cutter in a frontward inoperative position, a second resilient element which acts periodically to move the thread cutter rearwardly in opposition to the resilient member and thereafter serves to return the thread cutter rear- Wardly for a plurality of picks, and means actuated on replenishment of filling for determining the periodic activity of the second resilient element.

7. In a filling replenishing loom, the combination of a loom temple, a thread cutter mounted for frontward and rearward movement and provided with a heel portion actuated by lay movement, a spring secured to the temple and acting through the `heel portion normally to hold the thread cutter in frontward inoperative position, a resilient member stronger than the spring which acts on call for replenishment of filling to move the thread cutter to rearward operative position in opposition to the spring and thereafter acts for a plurality of picks to return the thread cutter rearwardly after each cutting operation until the outgoing and incoming filling ends have been parted.

8. In a filling replenishing loom, the comination of a loom temple, a thread cutter, yielding means acting normally to hold the thread cutter in a frontward inoperative position with permissive movement rearwardly, a` resilient member stronger than the yielding means to move the thread cutter rearwardly in opposition thereto, and acam actuated on call for replenishment of filling for causing the resilientmember to move the thread cutter rearwardly and return it to rearward position for a plurality of picks and then free the thread cutter for movement to inoperative positionby the said yielding means.

9. In a loom for replenishing filling by change of shuttles, the combination of a loom temple and thread cutter, spring means acting normally to-hold the cutter in frontward position, a resilient member stronger than the spring means for moving the cutter to rearward operative position, a shuttle transfer shaft, a cam member actuated from the shuttle transfer shaft on call for replenishlli.

ment of iilling, and connections between the cam member and resilient member forL causing the latter to move the thread cutter rearwardly into operative position and return it t0 rearward position for a plurality of thread cutting operations.

l0. In a loom for replenishing filling by change of shuttles, the combination'of a loom temple and thread cutter, spring means acting normally to hold the cutter in frontward position, a resilient member stronger than the spring means for moving the cutter to rearward operative position, a rocker carrying the resilient member, an arm connected to the rocker, a shuttle transfer shaft, a cam` member actuated from the shuttle transfer shaft and operating said arm on call for shuttle transfer to cause the resilient member to move the thread cutter to rearward operative position and return it to that position for a plurality of thread cutting operations.

ll. In a loom for replenishing filling by change of shuttles, the combination of a loom temple having a cutter acting along the cloth selvage, a spring acting normally to hold the cutter in a frontward inoperative position, a rock shaft carrying a cam member and actuated on call for change. of shuttles, an arm operated'by the cam member, a resilient member actuated by said arm to cause the resilient member to move the thread cutter rearward-` ly to cutting position and return it to cutting position for a plurality of thread cutting operations.

l2. In a loom for replenishing iilling by change of shuttles, the combination of a loom temple, a thread cutter mounted on the temple for movement towards and from the front of the loom and having a heel to be actuated by lay movement, a spring mounted on the temple and acting through the heel normally to hold the thread cutter in frontward inoperative position, a rocker below the temple having an upwardly extending resilient member stronger than said spring to engage the heel of the thread cutter, a shuttle transfer shaft actuated on call Jfor change of shuttles and having a cam carrying arm, and connection between the cam carrying arm and the rocker for causing the resilient member to swing rearwardly and move the thread cutter rearwardly to operative .position in opposition t0 said spring.

In testimony whereof, I have signed my name to this specification.

VERNER LIN DSJ O.

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