US2244866A - Transfer revoking mechanism - Google Patents

Description

June 10, 1941. c; 3, BROWN 2,244,866

IRANSFER REVOKING MECHANISM Filed Sept. 25, 1940 3 Sheets-Sheet 1 INVENTOR 64/81; 0. Brow/v. BY 8Y5 Attorney.

June 10, 1941. I Q Q BROWN 2,244,866

TRANSFER REVOKING MECHANISM Filed Sept. 25, 1940 3 Sheets-Sheet 2 INVENTOR. CAEL 0. Beam/xv;

June 10, 1941. c. D. BROWN TRANSFER REVOKING MECHANISM Filed Sept. 25, 1940 3 Sheets-Sheet 3 UllHJlHHHHIIHHHHIHIHHH INVENTOR.

C24, 0. Beow/y M 1.

Patented June 10, 1941 2,244,866 1 r TRANSFER REVQKING MECHANISM .Carl .D. Brown, Hopedale, Mass, assignor to 7 Draper Corporation, Hopedale,

' notation of Maine Mass, a cor- Application September 25, 1940-, Serial No. 358,374 (o1. 1a9- -231) 9 Claims.

This invention pertains toautomatic filling replenishing looms and more particularly relates to transfer revoking mechanism for such looms.

Looms of the above general character are now usually provided with replenishing mechanism automatically operative to replace either the bobbin or the shuttle upon substantial exhaustion of thefilling carried thereby. A feeler mechanism usually detects the conditionof the filling upon each alternate beat of the lay and upon detection of substantial;exhaustionof filling initiates operation of the replenishing mechanism.

In addition to the abovemechanisms such looms may be provided a center filling fork mechanismv for stopping the loonr' upon the breakage or failure of the filling. It may happen at times that the feeler mechanism will call for operation of the replenishing mechanism and during the next pick after: such call :the center filling forkopera tes to stop the loom, due to failure or breakage ofthe filling. In such event, the lay will be stopped before a complete transfer can be made and the shuttle or other parts of the loom maybe damaged. In such cases, it is essential that'the callfor operationfoffthe replenishing mechanism be revoked.

Accordingly, it is a principal object of my invention to provide an' automaticfilling replenishing V loom having automatic replenishing 3o mechanism of the typefincluding a reoiprocatory mechanism, feeler mechanism, a center fork member and means operated by the center fork for arresting the movement of the reciprocatory membejr loom stopping means, means for re-' voking the initiative operation of the feeler mechanism, and means carried by the recipro- V catory member for actuating the loom stopping means and the revoking means upon the arresting of the movement of the reciprocatory member by the center fork.

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

Fig. 1 is a perspective view of a portion of the loom showing the feeler mechanism and the center fork mechanism, some of the parts being broken away;

Fig. 2 is a perspective view of a portion of the loom showing the replenishing mechanism;

Fig. 3 is a perspective view of a portion of the loom showing the connection between the starting rod and shuttle feeler;

Fig. 4 is a plan view of a portion of the right hand side of theloom; T

Fig. 5 a'f ront-viewof a portionof the right Fig. 6 is a fragmentary view'showing the re-' lation. of the shuttle feeler and the lay; and

I Fig. "I is a fragmentary view showing the rela- I tion of the transferrer andthe lay. Theparticular loom shown on the drawings v includes'a rep emsmn mechanism for replacing the exhausted fillingsupply with a f resh supply, a feeler mechanism for feeling the fill- T ing on the bobbin to detect the condition'thereof and upon detection of substantial exhaustion of fillin'g to set in operation a train'of mechanisna to call for operation of the replenishing .mechanisni', a center fork stopping mechanism for stopping the loom upon failure or absence of filling in the shed 'and a transfer revoking mechanism under contr'olof and actuated by the center fork mechanismfor' revoking any existing call for transfer upon the stoppage of the loom by'the center fork mechanism.

The loom {frame may be of the usual-construction and the side frames thereof are connected by thebrea'st beam l upori the left hand side of which is'mounted the'feeler mechanism.

The feeler mechanismpnd the associated parts maybe of any suitable character, the essential in thisrespe-ct being that upon' each detecting beat the feeler will detect the'fcondition of the j filling in' the shuttle and when it has reached 'a' certain degree of exhaustion will call for a change of filling. The feler mechanismillu'strated in the present instance may be ofjthe'same general type as'shown and described more "fullly in the Bro and'Repa ssBatent No. 1,593,426,

granted"July 20, 192

The feler mechanism may-include a stand 2 for the'support of a feeler 3 and atransmitterj 4 connected to a bell crank (not visible on'the drawin'g's) pivotally mounted on actuator 5.

Upon the transmitter 4 being moved to 'theright as seen on'Fi'g. i' 1; the bell' crank moves'into a position permitting'the actuator 5 to be engaged by and slid forwardlyiby a cam follower (not show'ni. Actuator 5 is pivotally connected to an upwardly extending arm Sfixr dly secured; to

rocker shaft l'. 'I'he rocker jsha'ft 1 is journaled,

atoneend in a bracketlb 3 fi1 .8 on the left hand side of thebreastbeam (Fig l) and at the .other end is iournalled-in bracket bearing 9 on t the right hand side of the breast :(F ig. 3).. Fixedly connected to: shaft-"[ adjacent the bracketbearingS is a-l ev er lflpivotallylconnected to a member ilfhavirig a iorkedendjfor engagec ment with "a pin l-Z projecting fromthe shuttle pivotally mountedon the bracket.

feeler l3. Shuttle feeler I3 is pivotally mounted on a stand it secured to the right hand loomv side l5. Pivoted on shuttle feeler l3 at 16 is a latch depressor ll engaging a projection ii on latch 19. Latch I 9 is pivotally connected to arm 23 of the transferrer 2| and is adapted when raised to operative position to engage a bunter 22 on the usualreciprocating lay 22'.

The replenishing mechanism may comprise a rotary battery indicated generally at 23, carrying a reserve supply of bobbins, a transferrer 2i and a spring 24 for normallyholding the transferrer in raised position. When latch 'l 9 is raised to operative position to call for transfer, the bunter 22 will engage latch I!) on the forward beat of the lay and move the transferrer downwardly thereby inserting a fresh-bobbin in the shuttle.

The center fork mechanism and the associated parts may be of any suitable character, the essential in this respect beingthat upon each pick of the shuttle the fork will detect the presence or absence of filling in; the shed and upon the detection of absences-r failure of filling in 1 the shed mechanism will be set in operation to stop the loom. The center fork mechanism illustrated inthe presentinstance may be of the same general typeas shown and described more fullyin the Lindsjo Patent No. 1,855,930 granted July 5,1932. t l

The center fork mechanism may include a bracket 25 mounted on the lay 22 substantially centrally thereof. A rocking carrier ZE to which the tines 21 of the center fork are secured 1s The axis of the carrier ttmay extend to one side of the bracket as at 28, and connected with the extension 23 is a light spring 29 which serves to impart to the tines of the fork a downward movement for ascertaining whether or not filling has been laid in the shed. Slidably mounted in bracket 25 's a reciprocating rodtil which ex tends longitudinally of the lay. At one end of:

the rod- 38] is {a bomber 3| as shownooFigs. 4 and 5 At -th-e other end rod 30 is pivotally connected to, a bell crank lever 32 pivotally mounted on; a bracket 33 on the lay. One arm of bell crank lever 32 is provided with a hunter 34 extending forwardly therefrom as shown on Fig. l. The other arm of the bell crank lever 32 extends in the path of an actuating rod '35 whose lower end passes through a guide 36 secured to the lay sword 31 as seen on Fig. 1. Pivotally mounted on a bracket 38 secured to the loom frame is a lever 39, its pivotal point being located between the ends of the lever and the forward end thereof having a pin and slot ,connection with the actuating rod 35. The rearwardlyextending end All of thelever bears against a.

cam H on the cam shaft .42. The cam .41 is a two lobe cam and the cam shaftfl makes one.

revolution to each two revolutions of. thev crank shaft which operates the lay. V

From the construction so far described it is apparent that the rod 30 will be moved lengthwise of the lay in one direction bythe connection to the cam shaft 42. To move the rod 33 in the opposite direotionandthereby give it reciprocatory movement I provide a spring 43 between a pair of collars 44, 45. Stops 45 and 4'! are provided on bracket 33 to limit the movement of vtherod 3D longitudinally of the lay.

Secured to the rod. 30 is a cam member 48 having cam portions 49. and 50 with a notch 5! therebetween. Extending laterally of the axis of the center fork is a stop finger '52 which moves with the center fork. When the cam member 43 is moved longitudinally of the lay to the left (as viewed on Fig. l), the stop finger 52 will ride along thein-clined surfaces of the cams l9 and 59, thereby lifting the tines of the center fork to permit the shuttle to pass. As the rod 39 is moved to the right by the spring 48, the tines of the center fork will drop under the influence of gravity plus the spring 29 and if filling has been laid in the shed the tines will come to rest upon and be supported by the filling, however if filling is absent or breaks the tines will drop into a recess 52 on the lay, thereby causing the stop finger 52 to ride down the incline 5t and engage with the notch 5! and stop movement of the rod 39. When the movement of rod 30 is stopped by the center fork, in the above described manner the bunter 3! is properly positioned to actuate the revoking mechanism to revoke any existing call for transfer and the hunter 34 is properly positioned to actuate the loom stopping mechanism all as will be more fully described hereinafter.

The loom stoppage mechanism actuated by the center fork mechanism may be similar to that shown and described in the aforementioned patent to Lindsjo. Such mechanism may include a knock-off plunger 53 located on the breast beam and aligned to be engaged by the hunter 34 when the hunter is positioned to stop the loom by. the center fork mechanism. The plunger 53 extends forwardly and is connected at 5'4 with a knock-off lever 55, which is piv otally mounted on the breast beam with its op- The mechanism for revoking a call for transfer may comprise a projection '51 on the shuttle feeler l3. The projection 51 is in alignment with the hunter 3| when the movement of the rod 33 is stopped by the center fork. When the rocker shaft 1 is turned by the feelermechanism to raise the latch is into position tocall for transfer, the shuttle feeler l3 isalso raised into position to feel the shuttle and see if the shuttle is properly positioned within the shuttle box The projection 51 on thes-huttle feeler will make contact with the hunter .3land will be-moved forwardly, thereby moving with it the latch' l5; and preventing contact betweenlatch l 9 and the V bun'ter 22 carried by the lay. 7 v a v The operation of the device is as follows:

Assume the shuttle has just been picked along the lay from right to left and is in the left hand shuttle box as shown on Fig. I On the forward beatof thelay the feeler mechanism detects substantial exhaustion of the filling on the bobbin and through the mechanism of the transmitter 4 and actuator 5 therocker'shaft or starter rod i is turned, thereby raising the shuttle feeler l3 and latch l9 to'operative position to call for a transfer on the next forward beat of the lay. Now, if as the shuttle is picked from left to right there is a' failure of filling in the shed, the center fork will act to stop the loom, with the result that if nothing was doneto revoke the call for transfer, only a partial transfer would take place before the loom came to rest; However,

with the present invention, if asthe shuttle is pickedfrom left to right-there is a failure of;

I9 andthe bunter, 22 on the lay,.or in other words revoking the call for transfer.

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

1. In a filling replenishing loom, the combination of a reciprocating lay, replenishing mechanism including a latch movable to positioncalling far replenishment of filling, a center fork stop motion including a filling fork, a reciprocatory member mounted on said lay, means for reciprocating said member, said member having means intermediate its ends for raising said filling fork as said member reciprocates, means carried by said fork for arresting the movement of said member when said fork detects absence of filling in the shed, and means actuatedby said member upon the forward beat of the lay, to move said latch to inoperative position when arrested in its movement, whereby any existing call for replenishment is revoked. 2. In a fillingreplenishing loom, the combination of, a reciprocating lay, replenishing mechanism including a latch movable to position calling for replenishment of filling, means for moving said latch to said position upon substantial exhaustion of filling in the shuttle, a center fork stop motion including a center fork, a reciprocating rod mounted on said lay and having means intermediate its ends for raising said center fork as said rod reciprocates, means for reciprocating said rod, means operated by said center fork for arresting the movement of said rod when said fork detects absence of filling in the shed, loom stopping means, and latch revoking means, said loom stopping means and said latch revoking means being actuated by said rod upon the forward beat of the lay when the rod is arrested in its movement as aforesaid, whereby said loom is stopped and any existing call for replenishment revoked upon detection of absence of filling by the center fork.

3. In a filling replenishing loom, the combination of a reciprocating lay, transfer mechanism including a; latch, means actuated upon the substantial exhaustion of filling in the shuttle, to move said latch into a position to be engaged by the lay and thereby operate said transfer mechanism, a center fork, a member mounted on said lay for reciprocatory movement longitudinally thereof and having means intermediate its ends for raising said center fork as said member reciprocates, means for reciprocating said member, means operated by said center fork for arresting the movement of said member when said fork detects absence of filling in the shed, loom stopping means and latch revoking means. both said last named means being actuated by said member upon the forward beat of the lay when arrested in its movement whereby said loom is stopped and any existing call for operation of said transfer mechanism by said latch is revoked upon detectionr of absence; of fillingby said center fork;

4. In a loom having a reciprocating lay, the combination of automatic replenishing mechae 1 nism including a latch movable to operativeand inoperative positions, said latch when in oper ative position participating in the operation of said replenishing mechanism, acenter fork stop motion comprising'loom stopping mechanism, a reciprocatory member movable longitudinally of the lay and mounted thereon, means forreciprocating saidmember, said member having means adjacent one end positionable to actuate said loom stopping mechanism and also having means adjacent the other end positionable to move said latch to inoperative position, a center fork, means controlled by said center fork for stopping reciprocation of said member on detection of filling failure with said second named means in position to actuate said loom stopping mechanism upon the forward beat of the lay and said, third named means in position to move said latchjto inoperative position upon the forward beat of the lay whereby upon the forward beat of the lay said loom is stopped'and said movement of. saidlatch prevents operation of said transferring mechanism.

5. In a filling replenishing loom, the combination of a reciprocating lay, loom stopping mechanism, a breast beam, a filling. feeler .on said breast beam, a train of mechanismto initiate replenishment of filling under control of said filling feeler including a latch movable to operacenter filling fork stop mechanism effective .to;

stop said loom on the absence of filling in the shed, a sliding rod mounted on said lay for reciprocation longitudinally thereof, means for reciprocating said rod, a projection on each end of said rod, and means controlled by said center fork mechanism for positioning said rod upon absence; of filling in said shed so that upon the forward beat of the lay one of said projections actuates said stopping mechanism for stopping the loom and the other projection moves said latch to the inoperative position thereby rendering said replenishing mechanism inoperative.

6. In a filling replenishing loom, the combination of a reciprocating lay, transferring mechanism including a latch movable to operative and inoperative positions, said latch when in operative position participating in the actuation of said transferring mechanism by said lay, feeler mechanism operable upon substantial exhaustion of the filling to move said latch to operative position, loom stopping means including a filling fork mechanism for actuating said stopping means upon the absence of filling in the shed, said filling fork mechanism including a slidable member mounted on said lay and movable into position for actuating said loom stoppind means upon the forward beat of the lay, means for moving said member. and means carried by said slidable member and operable when said slidable member is moved to loom stopping position to move said latch to inoperative position upon the forward beat of the lay thereby preventing actuation of said transferring mechanism.

7. In a filling replenishing loom, the combination of a reciprocating lay, a center fork mounted on the lay, a bunter pivotally connected to the lay for swinging movement longitudinally thereof, a cam shaft having a cam for'causingmovement of the hunter about its pivotal connection with the lay in one direction longitudinally'thereof, aspring for moving the bunter longitudinally of the lay in the opposite direction;

a rod connected to the hunter for movement thereby, a cam device connected to the rod for raising the center fork as the hunter is swung about its pivot by its actuating cam and a looking notch formed in the cam device, an arm actuated'by the center fork for engagement with said locking notch when the center fork detects absence of filling in the shed, a knock-off plunger actuated by the hunter upon the forward beat of the lay to stop the loom when the bunter is arrestedin its movement and means actuated by said rod upon the forward beat of the lay to revoke any existing call for operation of the replenishing mechanism when the rod is arrested in its movement.

8. In a filling replenishing loom, the combination of a reciprocating lay, replenishing mechanism including a latch movable to position calling for replenishment of filling upon substantial exhaustion of filling in the shuttle, a center for stop motion comprising a reciprocatory rod mounted upon said lay for movement longitudinally thereof and having a hunter adjacent each end, means for reciprocating'said rod, a cam device connected to the rod for raising the center fork as the rod reciprocates, a locking notch formed in the cam device, anarm actuated by the center fork for engagement with said locking notch When'the center fork detects absence of filling in the shed, a'knock-off plunger actuated by one of said bunters upon the forward beat of the lay to stop the loom-when said rod is arrested in its movement and means actuated by the other of said bunters upon the forward beat of the lay to'move said latch to inoperative position when said rod is arrested in its movement thereby revoking any existing call for replenishment.

9. In an automatic replenishing loom, the combination of a reciprocating lay, replenishing mechanism including a latch movable from inoperative to operative position, means for moving said latch to operative position upon substantial exhaustion of filling in the shuttle, said latch when in operative position calling for and participating in the operation of said replenish ing mechanism and a center fork stop motion comprising loom stopping mechanism, a reciprocating member mounted on said lay and movable longitudinally thereof, means for reciprocating said member, said member having means adjacent one end positionable to actuate said loom stopping mechanism upon the forward beat of the lay and means adjacent the other end positionable to revoke the call of said latch for operation of said replenishing mechanism by moving said latch to inoperative position upon the forward beat of the lay, said third named means being in revoking position when said second named means is in loom stopping position, a center fork for detecting filling failure and operable upon detection of filling failure to stop said reciprocating memberwith said second nained means in position to actuate said loom stopping mechanism upon the forward beat of the lay, whereby after said center fork has acted to stop said loom any existing call for operation of said replenishing mechanism is revoked.

CARL D. BROWN.

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