US1965154A - Delayed feeler control stopping mechanism for looms - Google Patents

Description

Jufiy B 1934, o v PAYNE 1,965,154

DELAYED FBELER CONTROL STOPPING MECHANISM FOR LOOMS Original Filed Jan. 31, 1.929 3 SheetsSheet 1 nulluuulmillllll Il l 0500/ yfioy/re Jufiy 3, 1934.

o. v. PAYNE DELAYED FEELER CONTROL STOPPING MECHANISM FOR LOOMS Original Filed Jan. 31, 1929 3 Sheets-Sheet 2 y 3, 1934, 0. v. PAYNE 1,965,154

DELAYED FEELER CONTROL STOPPING MECHANISM FOR LOOMS 3 Sheets-Sheet 5 Original Filed Jan. 31, 1929 Patented July 3, 1934 UNITE STATES 1,ss5,154 q DELAYED FEELER CONTROL STOPPING MECHANISM FOR LOOMS Oscar V. Payne, Worcester, Mass, assignor to Cromptcn & Knowles Loom Works, Worcester, Mass, a corporation of Massachusetts Application January 31, 1929, Serial No. 336,608 Renewed January 11, 1934 24 Claims.

This invention relates to improvements in means for stopping a loom a predetermined number of picks after substantial exhaustion of Weft is indicated and it is the general object of the 5 invention to stop a shifting shuttle box loom when the exhausted shuttle is active and preferably on the plain end of the loom.

In the weaving of such a fabric as crepe it is customary to employ yarns of opposite twists, the shuttles alternating so that two picks of right hand twisted yarn are laid and then two picks of left hand twisted yarn. When weaving such a fabric it is necessary to provide shifting shuttle boxes which are moved every alternate pick so as to change the shuttles.

It is desirable to be able to stop the loom. before the weft is completely exhausted so that the weaver may replenish the shuttle by hand to prevent the necessity for picking-out should a short end be left in the shed due to complete exhaustion of filling. It is an important object of my present invention to stop the loom with the exhausted shuttle active, preferably several picks after the indication is given. If the shuttle with the right hand twisted yarn, for instance, be exhausted and indication of this fact is given when this particular shuttle is on the plain or weft detecting end with the lay on front center, this shuttle will be picked across to the box end of the loom and on the next two picks the other shuttle will be active. On the fourth pick the shuttle which gave the previous indication is again active and it is desirable to stop the loom with this shuttle carrrying the right hand twisted yarn on the plain or detecting end of the loom.

It is a further object of my present invention to provide a pair of shields for the knocking-off mechanisms, one of said shields initiating the stopping train of operations and being under control of the weft detector, and the other shield being the counter to determine the number of picks which intervene between the indication of weft and stopping of the loom. While I have shown herein means for stopping the loom on the fourth pick after indication yet I do not wish to be limited to this number inasmuch as the counting shield may be made to stop the loom either two picks or on any other selected number of picks after indication of weft exhaustion.

It is another object of my invention to mount the weft detecting element and the stop delaying mechanism on the same stand so that the device may be made and applied as a unit.

It is a still further object of my present invention to employ a stopping member such for (Cl. 139371) l instance as a dagger on the lay which will be operative during the first part of the forward stroke of the lay. In this way the final operation of the delaying mechanism to stop the loom will be initiated while the lay is practically on back center to permit the lay to come to rest before it reaches front center. It is desirable in some instances to prevent the lay from beating-in the filling on the pick on which replenishment is to be made, inasmuch as it would be necessary to turn the loom back from its front center position and this would result in a double beating-in of a ick of filling. This would result in a mark in the cloth and is avoided by the use of my present invention.

With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings, wherein I have shown my invention applied to a 2 x l loom and effective to stop the loom on the fourth pick following indication of weft exhaustion,

Fig. 1 is an end view of the forward upper portion of a loom having my invention applied thereto, the parts being in normal running position and there being a sufficient supply of weft to prevent indication of the detector,

Fig. 2 is a top plan view taken in the direction of arrow 2, Fig. 1,

Fig. 3 is a vertical section on line 3-3 of Fig. 1, indicating the manner in which the weft detector controls the initiating pawl,

Fig. 4 is a detailed end elevation similar to a portion of Fig. l, the counting pawl being removed to indicate the construction of the initiating pawl,

Fig. 5 is a view similar to Fig. 1 on a reduced scale and Figs. 6 to 12, inclusive, are diagrammatic views indicating the manner in which my invention operates.

The mechanism set forth herein comprises a Weft detector, stopping device and a control for 100 the latter. I will describe first the weft detector.

Any of the several forms of weft detectors now in use can be applied to my invention, but I prefer to use the type shown in my co-pending application Ser. No. 200,481. The feeler comprises a 105 foot 20 on which is mounted a bed 21 and cap 22, see Figs. 1 and 2. A slide 23 is guided in a groove 24 in the bed and has pivoted thereto as at 25 a weft detecting element 26, the rear end of which is positioned to pass through aligned open- 110 ings in the binder B and shuttle S to have contact with the weft on the bobbin W. A compression spring 27 has the rear end thereof in engagement with the detector 26 while the forward end bears against the cap or bed.

An indicating tail 28 is preferably formed integral with the detector and is free to slide between the cap and bed to have contact with a controller device 29. The latter is pivoted as at to a fixed structure and is provided with a counter-weight 31, see Fig. 3, the effect of which is to hold the controller against the cap. A controller wire 32 is connected to the member 29 and has the right hand end thereof as viewed in Fig. 3 guided through a boss 33. Movement of the controller wire to the left as viewed in Fig. 3 will initiate operation of the stop mechanism, it being understood that the wire is normally to the right when the loom is operating normally with a sufiicient supply of weft.

So long as suflicient weft is present the detector and the slide 23 upon which it is mounted will move forwardly without relative angular movement, so that the tail 28 will not be brought into operative relation with the control member 29. When weft is substantially exhausted from the bobbin W, however, the detector 26 will slide along the denuded bobbin to cause pivotal movement of the tail 28 around the pivotal support 25. When this occurs the controller member will be moved to the dotted line position shown in Fig. 3, the effect of which is to move the wire 32 to the left as shown in Fig. 3 in dotted lines. As previously stated it is this movement of the wire to the left which set into action the control mechanism for the stopping devices. The detector shown is merely for the purpose of showing one type of feeler which can be used with my invention and I do not wish to be limited to this particular form of weft detector.

The stopping device which will now be described, is shown more particularly in Figs. 1, 2 and 5, and comprises a shipper shaft to which is keyed a shipper handle 41. The latter has a depending arm 42 to which is secured a stud 43. The latter extends through an opening 44 in a lock lever 45 pivoted to a fixed center 46. A spring 47 has the effect of tending to move the lock lever 45 in a counter-clockwise direction as viewed in Fig. 5.

The opening 44 has a notch 48 in which the stud 43 normally lies when the loom is running, thus holding the spring 47 under tension and holding the shipper rod 49 to the right. It is to be understood that so long as the rod 49 is held in its right hand position by engagement of the lug in the notch the loom will continue to run, but as soon as the rod 49 is moved to the left as viewed in Fig. 5 mechanism not shown but well understood will be operated to disconnect the loom from its driving mechanism.

It is customary in looms of the type in which my invention more particularly relates to employ brake mechanism and the latter may be controlled by a brake handle 50 which is secured to a brake rod 51 rotatably mounted in the loom frame L. Said lever 50 has formed therewith as shown in dotted lines in Fig. 5 a relatively low notch 52 and a relatively high notch 53, a part of the latter notch being shown in full lines in said figure. The notches 52 and 53 cooperate with a roll 54 mounted on the upper end of a brake lever 55 pivoted loosely on the shipper shaft 40. The lower end of the brake lever 55 is operatively connected to a brake rod 56 which passes through a fixed guide 5'7 and is surrounded by a compression spring 58, the rear end of which bears against said guide 5'7. The forward end of the rod 56 has connected thereto a collar 59 which is fastened to said rod by a set screw and there is projecting from said collar a finger 59a in alignment with the depending arm 42 of the shipper handle.

When the brake handle 50 is depressed to the low position shown in Figs. 1 and 5 the roll 54 will occupy the high notch 53 and thus move the brake rod 56 rearwardly or to the right as shown in Fig. 5 to compress spring 58. When for any reason the brake shaft 51 is rotated in a right hand direction as viewed in Fig. 5, as for instance by the protector mechanism not shown or the filling fork not shown, the roll will occupy the low notch 52 to permit movement of the brake rod 56 to the left as viewed in Fig. 5. This movement of the rod 56 will bring the finger 59a against the arm 42 of the shipper handle and rock the latter in a clock-wise direction, so that by movement of the shipper handle upwardly from the position shown in Fig. 5 the brake will be applied and the loom disconnected from the drive thereof. The brake mechanism is not shown in detail herein as it may be of well-known construction and so regulated that when the rod 56 is to the right the brake is off and when spring 58 moves the rod to the left as viewed in Fig. 5 the brake will be on.

The shipping and braking mechanism as set forth herein is of well-known construction and is illustrated for the purpose of indicating one embodiment of my present invention. It is to be understood that both the shipper and brake handles will move in a right hand direction as viewed in Figs. 1 and 5 when the loom is to be stopped. The matter thus far described forms no part of my present invention.

My present invention relates to mechanism which is interposed operatively between the detector and the braking and shipping mechanism for the purpose of delaying the actual stopping of the loom a predetermined number of picks after the detector has indicated substantial exhaustion in the running shuttle. It is to be understood that the shuttle shown in Fig. 2 is but one of two shuttles which are employed, the

shuttles being alternately active and each remanning in action for two picks when the particular form of my invention set forth herein is used.

In carrying my invention into effect I provide a stand 60 secured to the loom frame L and affording the support for and mount in said stand a stud 61 which is preferably coaxial with the brake shaft 51 as shown in Fig. 2. This stud is received by an upstanding horn 62 formed as part of the stand 60 and the previously mentioned initiating and counting shields are mounted on this stud for free rotation.

The initiating shield 63 has a notch 64 which receives the right hand end of the rod 32 as shown in Figs. 3 and 4 when the loom is running normally with sufficient weft. This shield has an under surface 65 which is normally positioned for engagement by a dagger 66 pivoted as at 67 to the lay 68 of the loom. Said dagger is carried by a small arm 69, the vertical position of which is determined by a set screw 70 having engagement with a projection 71 on a bracket 72 mounted on the front part of the lay. A torque producing spring '73 acts to lift the forward or the left hand end of the dagger 66 as viewed in Fig. 1, upward movement of the dagger being limited by the screw 70. When the lay is at extreme rearward position and is beginning its forward motion the dagger will engage the surface and will be depressed against the action of the torsion spring during normal running of the loom when suflicient weft is present. A counter weight '74 carried by the initiating shield is effective to rotate the shield in a right hand direction as viewed in Fig. 1 when the rod 32 is moved. out of the notch 64.

The counting shield '75 is provided in this instance with three notches '76, '77 and 78, respectively, which are normally guarded by the surface 65 so as to be out of the path of the dagger 66. A fiat spring '79 held to a fixed part of the stand 60 has a lower yielding end which is adapted to enter either of the holding notches 81, 82 or 83 which correspond to the notches '76, 7'7 and '78, respectively.

A knocking-off element 84 is also loosely pivoted on the stud 61 and has a single notch 85 which is normally shielded by both the initiating and counting shields. The knocking-off element 84 has an arm 86 which is operatively connected to a finger 87 projecting from the hub 88 of the brake handle 50, see Figs. 2 and 3. Said arm 86 may be forked as suggested in dotted lines in Fig. 3 to receive the finger 87.

If desired I may form the knocking-off element 84 as shown in Fig. 3 with a relatively long hub so as to reduce wearing of the latter due to the fact that the forked arm 86 is offset from that portion of the stud 61 which supports the element 8 1. The stepped hub 84 also permits each disc 63 and 75 to be independent and spaced. A cotter pin 89 may pass through the stud 61 to hold the shields and knocking-01f element in proper position.

In operation the parts will be normally in the position shown in Figs. 1, 2 and 5, and in full lines in Fig. 3. As the lay starts its forward movement the dagger 66 will engage the surface 65 as suggested diagrammatically in Figs. 6 and 11 and will move forwardly without having operative contact with the counting shield or the knocking-off element. As weaving continues, however, the weft in the running shuttle will be depleted so that eventually when the lay is on front center the detector 26 will move along the empty bobbin and the rod 32 will move to the left in the dotted line position shown in Fig. 3, thereby releasing the initiating pawl so that the counter-weight of the latter will move said pawl in a right hand direction or in the direction of arrow a Fig. 7.

As the lay recedes the indicating shuttle will be picked across to the box end of the loom and as the lay starts its second forward movement the dagger 66 will engage notch '76 of the counting shield '75. The notch is so formed that the dagger will clear itself when the counting disk or shield has moved a space of one notch, so that when the dagger assumes the relation with notch 76 which is shown in full lines in Fig. 7 the dagger will be automatically disconnected due to the tooth lying between notches 76 and '77 and will be able to continue forward to assume the dotted line position shown in Fig. '7, thus effecting merely a one-step movement on the .part of the mounting shield. The spring 79 will now be in notch 82 and the indicating shuttle on the box end of the lay.

As the lay reaches front center and then starts its backward stroke the other shuttle will start from the box end of the loom and travel toward the single or detector end. As the lay starts its third forward movement with the second shuttle travelling toward the detector the dagger will engage notch 77 and will clear itself in a man ner described in connection with Fig. '7, the parts now assuming the position shown in Fig. 8. The lay will continue to move forwardly and then start on its backward movement, and when at top center the second shuttle will be picked back to the box end of the loom.

On the beginning of the following or fourth forward stroke of the lay the dagger 66 will engage notch '78 to move the parts to the position shown diagrammatically in Fig. 9, and as the lay reaches top center the first or indicating shuttle will again be picked from the box end to the detector end of the loom.

It will be noted by reference to Fig. 9 that when the dagger 66 engages the notch 78 to move the counting shield '75 to the position shown in said Fig. 9 the notch 85 of the knocking-off element becomes exposed. Therefore, with the shuttle which gave indication of weft exhaustion travelling toward the detector end of the loom the dagger 66 upon starting its forward movement with the lay still in rear position will engage said notch 85 and rock the knocking-off element as shown in Figs. 10 and 12. If desired the counting shield may be provided with an additional notch 90 which will be engaged by the spring '79 to hold counting shield in the position shown in Fig. 10.

From the description thus far given it will be apparent that the mechanism which I have operatively interposed between the detector and the brake lever will be eifective to cause downward movement as viewed in Fig. 1 of the arm 86 on the fourth pick following that on which indication of Weft exhaustion was given. As previously stated movement of the arm 86 and the finger 87 in a right hand direction as viewed in Fig. 1 will effect stoppage of the loom.

There remains yet to be described the mechanism for resetting the device to normal position. I preferably accomplish this result through the motion of the shipper handle as the latter moves from running to stopping position. As shown more particularly in Fig. 1 the stand 60 is provided with an upstanding horn 91 provided with a stud 92 on which is freely mounted a three armed lever 93. The upper and lower left hand arms 94 and 95, respectively, as viewed in Fig. 1, lie on opposite sides of the shipper handle, while the third arm 96 is provided with a pin 97 held for bodily adjustment angularly around the axis of the lever 93. Said pin is positioned for engagement with a surface 98 of the counting shield '75 so that as the shipper handle moves upwardly or to the right from the position shown in Fig. 1 it will engage the upper arm 94 and effect downward movement of the pin 97, whereupon the latter will engage the surface 98 and restore the same to normal position, the spring 79 entering the notch 81 to hold the counting shield. in its normal position.

The initiating shield 63 is provided with a surface 99 which is similar to the surface 98 and is likewise engaged by the pin 97. The initiating shield is provided with a web 100 which is sufiiciently long to holdthe controller wire 32 against movement to the right as viewed in Fig. 3 when the initiating pawl has moved to indicating or loom stopping position or to the position shown in Fig. '7. Therefore, as the pin 97 moves downwardly it will engage the surface 99 and rock the initiating shield until the notch 64 thereof is in position to receive the wire 32, whereupon the counterweight 31 will act to move said wire into the notch 64 to hold the initiating shield in its normal position.

It is to be understood that the knocking-off element because of its connection with the brake lever will move with the latter and will be positioned by one or another of the notches 52 or 53. Although movement of the shipper to stopping position does not automatically restore the knocking-03f element to its normal position, yet the latter is protected by reason of the fact that the shields are moved to normal position when the loom stops, and therefore any hand moving of the lay which may be necessary will not be effective to rock the knocking-off element because of the fact that the dagger 66 is engaged by the surface 65 of the initiating shield.

By the restoration of the shields to their normal position during the movement of the shipper handle to loom stopping position the operator of the loom is relieved of any responsibility for restoring the parts to position by hand, and as soon as the depleted shuttle is replenished and inserted in the plain box at the detector end of the loom weaving may continue in the usual way, the device being already in normal position.

From the foregoing it will be seen that I have provided a compact mechanism effective to stop a drop box loom a predetermined number of picks subsequent to the pick on which weft exhaustion is indicated. It will also be seen that the mechanism is restored to its normal position during the knocking-off movement of the shipper handle. It will again be seen that I have provided two shields each of which is effective to guard the knocking-off element, one of said shields being controlled by the weft detecting mechanism and the other shield being effective to count the number of picks which are to intervene between indication of weft exhaustion and loom stoppage.

Having thus described my invention it 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 the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a loom operating with shifting shuttle boxes and shuttles which become active in a prescribed order. a controller mechanism movable from running to stopping position to effect stoppage of the loom, a weft detector to indicate substantial exhaustion of weft in a running shuttle,

and element independent of the boxes and the order in which the same become active having a normal stroke every pick of the loom and capable of moving the controller mechanism from running to stopping position, and a pair of shields to engage said element and render the same ineffective to engage the controller, one of said shields being controlled by the detector and movable out of action at the time of indication of weft exhaustion, and the other shield being engaged by the element and effective to delay en'- gagement of the element and controller mechaanism a predetermined number of picks.

2. In a loom operating with shifting shuttle boxes and shuttles which become active in a prescribed order, a controller mechanism movable from running to stopping position to effect stoppage of the loom, a weft detector to indicate substantial exhaustion of weft in a running shuttle,

an element independent of the boxes and the order in which the same become active having a regular movement every pick of the loom and capable of being operatively related to the controller mechanism to move the latter from running to stopping position, and a pair of devices jointly controlling the element, one being operatively related to the detector and movable out of relation with respect to the element upon indication of weft exhaustion, and the other effective to delay engagement between the element and the controller mechanism a given number of picks after indication of'weft exhaustion.

3. In a loom operating with shifting shuttle boxes and shuttles which become active in a prescribed order, a controller mechanism movable from running to stopping position to effect stoppage of the loom, a weft detector to indicate substantial exhaustion of weft in a running shuttle, an element independent of the boxes and the order in which the same become active having a regular movement every pick of the loom and capable of being operatively related to the controller mechanism to move the latter from running to stopping position, an initiating shield, a counting shield, said initiating shield normally effective to prevent engagement of the element and controller mechanism and effective also to prevent engagement of the element with the counting shield, said initiating shield being operatively connected to the detector to be moved out of relation with respect to the element upon indication of weft exhaustion, whereupon said element is positioned for engagement with the counting shield, and said counting shield having provision for delaying the engagement of the element with the controller mechanism a predetermined number of picks.

4. In a loom operating with shifting shuttle boxes and shuttles which become active in a prescribed order, a controller mechanism movable from running to stopping position to effect stoppage of the loom, a weft detector to indicate substantial exhaustion of weft in a running shuttle, an element independent of the boxes and the order in which the same become active having a regular movement every pick of the loom and capable of being operatively related to the controller mechanism to move the latter from running to stopping position, a pair of shields interposed between the element and the controller mechanism and normally effective to prevent engagement of the controller mechanism by the element, one of said shields also effective to prevent engagement of the element with the other shield, the said one shield being under control of the weft detector and being movable upon indication of weft exhaustion to expose the other shield to the element, and said other shield being provided with means to delay engagement bettween the element and the controller mechanism a predetermined number of picks.

5. In a loom operating with shifting shuttle boxes and shuttles which become active in a prescribed order, a controller mechanism movable from running to stopping position to efiect stoppage of the loom, a weft detector to indicate substantial exhaustion of weft in a running shuttle, an element independent of the boxes and the order in which the same become active having a regular movement every pick of the loom and capable of being operatively related to the controller mechanism to move the latter from running to stopping position, an initiating shield, a counting shield, both of said shields being movable about a common axis and each positioned with engagement with the element, the initiating shield normally effective to prevent engagement of the element and the counting shield until indication of weft exhaustion by the detector, and the counting shield being effective to prevent cooperation of the element and the controller mechanism until a predetermined number of picks after indication of the weft exhaustion by the detector.

6. In a loom having a lay and operating with shifting shuttle boxes and shuttles which are ac tive in a predetermined order, a shipper handle, a loom controller movable with the shipper handle, a weft detector, an initiating shield oper-' atively connected to the detector, a counting shield, a regularly moving element on the lay but independent of the boxes adapted for engagement with the controller and counting shield but normally held out of engagement with the controller and counting shield by the initiating shield so long as sufficient weft is present, means whereby movement of the detector at indication of weft exhaustion exposes the counting shield to the element by movement of the initiating shield out of shielding position, said element upon a predetermined number of movements of a counting shield engaging the controller to move the same with the shipper handle to loom stopping position, and means eifective upon movement of the shipper handle to stopping position to reset the initiating and counting shields to normal position.

7. In a loom having a lay and operating with shifting shuttle boxes and shuttles which are active in a predetermined order, a controller movable from running to stopping position to effect stoppage of the loom, a weft detector, initiating and counting shields, a regularly moving element on the lay but independent of the boxes which engages the initiating shield when sufficient weft is present but is adapted upon indication of weft exhaustion to engage the counting shield and the controller, means whereby the weft detector is effective upon indication of weft exhaustion to move the initiating shield out of engaging position with the element, and means operatively connected to the controller and moving with the latter when the same moves to loom stopping position to reset the initiating and counting shields to normal'position,

8'. In a loom operating with shifting shuttle boxes and shuttles which become active in a prescribed order, a controlling mechanism movable from running to stopping position to effect stoppage of the loom, a weft detector to indicate substantial exhaustion of weft in a running shuttle, a lay, a dagger mounted on the lay independent of the boxes and moving-forwardly with the latter and capable of cooperation with the controlling mechanism to move the latter from running to stopping position, and shielding means under control of the weft detector and normally effective to prevent engagement of the dagger and the controlling mechanism, said shielding means having a progressive movement, one movement for each pick of the loom, and a predetermined number of picks after indication of weft exhaustion to cause engagement between the dagger and the controlling mechanism.

9. In a loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, a controller mechanism movable from running to stopping position to effect stoppage of the loom, a weft detector to indicate substantial exhaustion of weft in a running shuttle, a'

lay, a dagger on the lay independent of the boxes and moving forwardly with the latter and capable of cooperation with the controlling mechanism to move the latter from running to stopping position, and means under control of the weft detector and normally effective to prevent engagement of the dagger and controlling mechanism, said means being effective a plurality of picks after the pick on which indication of weft exhaustion takes place to cause engagement between the dagger and the controlling mechanism.

10. In a loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, an actuator independent of the boxes having a movement each pick of the loom, weft detector mechanism, loom stopping mechanism, delaying means interposed operatively between the mechanisms and normally out of operative relation with respect to the actuator, connections between the detector mechanism and the means to cause operative relation between the actuator and means at weft exhaustion, said delaying means including a part to be operatively related to the actuator during each of a plurality of successive picks of the loom.

11. In a loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, an actuator independent of the boxes having a movement each pick of the loom, weft detector mechanism, loom stopping mechanism, delaying means interposed operatively between the mechanisms and normally out of operative relation with respect to the actuator, connections between the detector mechanism and the means to cause operative relation between the actuator and means at weft exhaustion, said delaying means'including apart to be operatively related to the actuator during each of a succession of more than two picks of the loom.

12. In a loom' having shifting shuttle boxes and shuttles which become active in prescribed sequence, a loom controlling mechanism movable from running to stopping position to effect loom stoppage, a weft detector to indicate substantial exhaustion of weft, a regularly moving actuator independent of the boxes capable of cooperation with the controlling mechanism to move the latter fromrunning to stopping position, means under control of the detector normally efiective to prevent cooperation between the actuator and loom controlling mechanism, and a counting device interposed operatively between the means and loom controlling mechanism to determine the number of picks of the loom lapsing between indication of weft exhaustion and loom stoppage.

13. In a loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, a loom controlling mechanism movable from running to stopping position to effect loom stoppage, a weft detector to indicate substantial exhaustion of weft, a regularly moving actuator independent of the boxes capable of cooperation with the controlling mechanism to move the latter from running to stopping position, means under control of the dete ctor'normally effective to prevent cooperation between the actuator and loom controlling mechanism, and a counting device interposed operatively between the means and loom controlling mechanism to determine the number of picks of the loom lapsing between indication of weft exhaustion and loom stoppage, said device receiving a movement from the actuator during each of a plurality of picks of the loom after indication of exhaustion by the de tector.

14. Ina loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, a loom controlling mechanism movable from running to stopping position to efiect loom stoppage, a weft detector to indicate substantial exhaustion of weft, a regularly moving actuator independent of the boxes capable of cooperation with the controlling mechanism to move the latter from running to stopping position, means under control of the detector normally effective to prevent cooperation between the actuator and loom controlling mechanism, and a counting device interposed operatively between the means and loom controlling mechanism to determine the number of picks of the loom lapsing between indication of weft exhaustion and loom stoppage, said device receiving a movement from the actuator during each of a plurality of picks of. the loom greater than two.

15. In a loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, a loom controlling mechanism movable from running to stopping position to effect loom stoppage, a weft detector to indicate substantial exhaustion of weft, a regularly moving actuator independent of the boxes capable of cooperation with the controlling mechanism to move the latter from running to stopping position, means under control of the detector normally effective to prevent cooperation between the actuator and loom controlling mechanism, and a counting device interposed operatively between the means and loom controlling mechanism to determine the number of picks of the loom lapsing between indication of weft exhaustion and loom stoppage, said device receiving a movement from the actuator during each of a succession of more than two picks of the loom.

16. In a loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, a loom controlling mechanism movable from running to stopping position to effect loorn stoppage, a weft detector to indicate substantial exhaustion of weft, a regularly moving actuator independent of the boxes capable of cooperation with the controlling mechanism to move the latter from running to stopping position, means under control of the detector normally effective to prevent cooperation between the actuator and loom controlling mechanism, and a counting device interposed operatively between the means and loom controlling mechanism to determine the number of picks of the loom lapsing between indication of weft exhaustion and loom stoppage, said device to be operatively related to the actuator on the pick following that on which the detector indicates weft exhaustion and for a plurality of picks thereafter.

17. In a loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, a weft detector, a knock-off member, a regularly moving actuator independent of the boxes capable of coacting with the member, an element which in normal position prevents operative connection between the acutator and the knock-off member, said element movable at in dication of weft exhaustion out of normal position to render said actuator free to move without restraint on the part of the element, and a counter interposed between the element and the member to be engaged by the actuator on each of the series of picks following indication of weft exhaustion to delay engagement between the actuator and the knock-off member.

18. In a loom having shifting shuttle boxes and shuttles which become active in prescribed sequence, a knock-01f member, a regularly moving actuator independent of the boxes capable of coacting with the knock-01f member to stop the loom, an element normally rendering the actuator incapable of cooperating with the knock-01f member and movable at indication of weit out of preventing relation with respect to the actuator, and a counter to be operatively related to the actuator for a plurality of picks subsequent to movement of the element out of preventing position, said counter on each of its successive move.- ments preventing engagement between the actuator and member and finally exposing the latter to action of the actuator.

19. In a loom having shifting shuttle boxes and shuttles which become active in prescribed se-- quence, a knock-off member, a regularly moving actuator independent of the boxes capable of cooperating with the member, a counting shield, and a disabling device normally efiective to render the actuator incapable of co-acting with either the counting shield or the knock-off member, said disabling device being movable at indication of weft exhaustion out of disabling relation with respect to the actuator, whereupon the latter is capable of engaging the counting shield during each of a plurality of picks at the end of which said counting shield moves to expose the knock-01f member to the action of the actuator.

20. In a loom stopping mechanism operative to stop the loom at a plurality of picks after indication of weft exhaustion, a regularly moving actuator, and a pair of controllers for said actuator, one of which is movable out of controlling relation at indication of weft exhaustion and the other of which is thereupon eifective to control the actuator a plurality of successive picks of the loom, and a knock-off member independent of the controllers and engageable by the actuator to stop the loom at the end of the succession of movements of said other controller.

21. In a loom stopping mechanism, a knock-off member, a regularly moving actuator, and delaying means interposed operatively between the actuator and the member, said means including two parts one of which normally renders the actuator incapable of engaging either the other part or the knock-off member but which is movable at weft exhaustion out of operative relation with respect to the actuator, the other part independent of the knock-01f member and being thereafter operative throughout a series of picks to render the actuator incapable of co-acting with the knock-off member, said actuator cooperating with the knock-off member at the end of the series of picks.

22. In a loom stopping mechanism, a knockoff member, a weft detector, a regularly moving actuator capable of co-acting with the member to stop the loom, and a device independent of the knock-off member interposed operatively between the detector and the knock-off member to engage the actuator on each of a plurality of picks subsequent to indication of weft exhaustion and prior to engagement of the actuator with the knock-off member.

23. In a loom stopping mechanism, a knockoff member, a weft detector, a regularly moving actuator capable of coacting with the member to stop the loom, and a device independent of the knock-off member interposed operatively between the detector and the knock-oif member to engage the actuator on each of a plurality of picks in excess of two subsequent to indication of weft of picks after indication of weft exhaustion by the weft detector, said device including a part under control of the weft detector and a plurality of elements independent of the knock-01f member to be engaged by the actuator in succession on successive picks of the loom.

OSCAR V. PAYNE.-

Images