US1786667A - Clutch for axminster-loom tube frames - Google Patents

Description

Dec. 30, 1930. J. LYLE CLUTCH FOR AXMINSTER LOOM TUBE FRAMES Filed Nov. 11, 1929 fNVE/VTUR JOHN L YA. 5

A TTURA/Efi Patented Dec. 39, 1930 arr JOHN LYLE, F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CROMPTON & KNOXVIIES 1300135 iTOI*..-3.ZS, OF WQB-CESTEE, MASSACHUSETTS, A CORPORATION OF IEIASSACH'U- CLUTCH FOR, AXMINSTER-LOOM TUBE FRAMES Application filed November 11, 1929. Serial No. 406,277.

tend between transporting chains which. are

given step by step movements to present the tube frames one at a time to an operative position from which they can be moved W toward the cloth for the formation of a row of tufts. Transferrer arms are provided to move the tube frames from the chains, but it occasionally happensthat one or the other of theends of the tube frame will become entangled with the chain so that it cannot move downwardly. Under these conditions it is desirable to stop the loom. It is an important object of my present invention to provide a device mounted on the transferrer arm which shall'engagethe spool to apply friction thereto and at the same time be capable of having holding engagement with the spool to co-act with astop motion operative to stop the loom should a tube n frame stick in the chain.

Certain of the spools at present in use have steel heads with outwardly projecting horizontal flanges and it is a further object of my present invention to provide a plunger Q; on the transferrer arm effective to lie over the flange of the spool head so as to be held in raised position thereby should ,a tube frame stick in the transporting chain. this aspect of the inventlon t 1s not essential that the device forming an important part 59 set forth, 7

forth herein.

Fig. 1 is an end elevation of a portion of the loom having my invention applied thereto,

Fig. 2 is a front elevation of certain parts shown in Fig. 1 on an enlarged scale, the clutch being in an intermediate position which it assumes when moving toward the tube frame,

Fig. 3 is a view similar to Fig. 2 but with the clutch in engaging position with the tube frame,

Fig. 1 is a top plan view taken in the direction of arrow 4;, Fig. 8, and

Fig. is a vertical section on line 5-5 of Fig.2.

Referring particularly to Fig. 1 I have shown a loom frame 10 and a rotating cam plate 11 having thereon a tappet 12. The latter engages a horizontal arm 13 of a lever 1% pivoted as at 15 to a fixed bracket 16. The upper end of the lever 14 has pivoted thereto as at 17 a link 18 which is caused to reciprocate periodically so that a hooked portion 19 there of will move to the left as viewed in Fig.1.

' A knock-0E lever 20 pivoted at 21 has a boss 22 which is adapted to be engaged by the hook 19 under certain conditions.

The right hand end of the link 18 is pivoted as at 23 to the lower end of a vertical push rod 2d the upper end of which is guided through an eye 25. The upper end of the rod is positioned for engagement with some portion of a transferrer device having an arm 26. The

latter is pivoted as at 27 and moves down wardly for each advance movement of the transporting chain 28. The power to raise the transferrer arm up and down may be transmitted through a rod 29 and the transferrer arm may be'pivoted about a vertical axis 30 on a supporting lever 31.

Under normal operation it is to be understood that the tube frames which are arranged in a series are presented to operative position by the-chains 28, only one of which is set lhe transferrer arm 26 will then move around the axis '30, moving the clutches 32, of, which only one is set forth herein, toward the tube frame in operative position. Thereafter, by means of rod 29, the

- tube frame and transferrer arms are lowered to tuft forming position and thereafter raised.

Refs ring more particularly to Fig. 2, each tube rame T C0311} rises a tubular bar to to which is attached a spool. bearing bracket ill. The latter receives the gudg-con '12 of a yarnspool 43 which may have a, pressedstcel head ale: provided with a horizontal flange or rim l5. Thelatter defines one end of the yarn space and may if desired engage a friction spring 46 mount d on top of the bar l0.

he bracket 1 he provided with a chain engaging member 4-? and there may be a hook l8 which has supporting relation with TQESPGCl to either the bracket as shown herein or the tube frame in anv desired manner. The book normally engages a portion of the transporting chain and supports the weight ofthe tube frame. The clutch 32 has a vertical wall i!) which engages the hook to move the same toward the spool when the tube frame is to he moved from the chain.

The matter thus far described forms no part of my present invention and may operate substantially in the usual manner. There are two clutches, one for each end of the tube frame and my invention relates more particularly to devices carried by theclutch to engage the yarn spool.

During the tuft forming operation the spool is rotated to payoff yarn for the formation of the piles and unless precautions are taken to prevent excess rotation of the s 3001 an amount of yarn will be delivered which will be wasted. In carrying my invention into effect I provide a plunger 50 having a reduced end 51 which extends through a portion of the clutch 32. The plunger is provided with a shoulder 52 to engage a portion of the clutch and limit movement of the plunger toward the tube frame. A pin or similar device 53 passes through the plunger and also extends through certain coils of a tension spring 54, the left hand endof which as shown in Fig. 2 is retained by a screw 55 carried bythe clutch. I

As shown in Fig. l the reduced end 51 lies to one side of the spool bearing member 41 and chain engaging parts? of the bracket and is adapted to move against the vertical surface 56 of the spool head 44-.

In operation, as the clutch moves from the position shown in. Fig. 2 to that sh own in Fig. 3 the plunger will engage the spool head it before the clutch has finished itsinovement,

thereby placing the spring 54 under tension toapply additional friction to the spool head.

During the subsequent operation ofthe loom the transferrer. arm 26' will normally imove downwardly to icarlyztlle tube ifmm'eito cloth forming p0sition',=bnt1 if" for "any reaso'n the tube frame shouldbefheld imra'isedaposition the. plunger will engage the lower pant' ofthe rim 45 of; the sp'o'ol;- so that furtherdescent will prevented; these conditions mee s? the plunger will engage the spool flange to arrest downward movement of the clutch and transferrer arm before the latter is in position to engage the top of the depressor rod 24. The hook it) will therefore be in low position and the loom will be stopped.

It is to-be understood that if the operation normal the transferrer device will depress the rod 24; to raise the hook 19 before the rod 18 moves to the left as viewed in Fig. 1, there by permitting continued loom operation. 7

From the foregoing it will be seen that l have provided a combined friction device and stop motion operating feature which may be carried by the clutch or other part moving with thetransferrer arm or device effective to stop the loom by engagement with a part of the spool sl'iouldthe latter be held against normal downward movement.

Having thus describedimy inventionit will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of t tie invention and I do not wish-to be limited to the details herein disclosed,but what I claim is 2 fl. In an Axminster loom having a group of tube frames which are movable progressively to operative position meansto move the tube fran'ies one at a time from the chain toward cloth forming position, a rotatable spool on each tube frame, a stopmotion to stop the loom when a tube frame is improperly held-in the chain, and a device acting simultaneously to offer resistance to rotation of the spool and also to co-act with the stop motion to prevent disabling thereof.

2. In an AXminst-er loom having a group of tube frames which are movable progressively to operative position, means to move the tube frames one at a time from thechain toward cloth forming positioma rotatable spool on each tube frame, a stop motion to stop the loom when a tube frame is improperly held in the chain, and a device acting simultaneously to offer resistance to rotation of the spool and also to co-act with the stop motion, to prevent disabling thereof said spool having ahead with a surface having a horizontal component to co-act with the device.

3. In an Axminster loom having'a group of tube frames which are movable progressively to operative position, means to move the tube frames one at a time from the chain rtoward cloth forming position, a rotatable .spoolon neously to offer resistance to" rotat on of the spool and alsot'o 'co zict" witli -thestop niot'ion, to prevent" disabling thereof said-spool having a head providedwitlraflange extending-in a horizontal direction't'o cooperate withthe device.

4. In an Axminster loom havmg'wtransporting chain, a stopping member to be moved when continued loom operation is desirable and remain at rest when loom o eration is to be arrested,- a spool carrying ra ine, a yarn spool thereon, a transfer device to move the spool carrying arm from the chain to cloth forming position, said device to have engagement with the aforesaid member, and means moving with the device to engage the spool and have holding engagement therewith to prevent engagement between the device and stopping member if the spool carrying frame is unable to move toward cloth forming p0 sition.

5. In an Axminster loom having a trans porting chain, a stopping member to be moved wh en continued loom operation is desired and to remain at rest when loom operation is to be stopped, a tube frame on the transporting chain, a transfer device adapted to move the tube frame from the transporting chain to cloth forming position, said device adapted to cooperate with and move the stopping mem-- her, a yarn spool carried by the tube frame and moving therewith, and an element carried by the transferrer device to engage the spool so vthat when a tube frame is improperly held in the chain said element will co-act with the spool to hold the transfer device in raised po sition out of engaging position with the memher to cause stopping of the loom.

6. In an Axminster loom having a stopping member to be moved when continued loom operation is desired and to remain at rest when loom operation is to be stopped, a transporting chain, a series of tube frames thereon, a transfer device adapted to move a tube frame from the transporting chain to cloth forming position and also cooperate with the stopping member, a spool head and spool carried by the tube frame, and an element mounted on the transfer device and p0- sitioned to engage the spool head, the spool head limiting downward movement of the element relatively to the tube frame when the tube frame is improperly held in the transporting chain, said element thereby preventing coacting between the transfer device and the member stopping, whereby the latter remains effective to stop the loom.

In testimony whereof I have hereunto af 7 fixed my signature.

JOHN LYLE=

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