US1225328A - Pattern-controlled device. - Google Patents

Description

E. F. HATHAWAY & C. D. LANNI'NG.

PATTERN CONTROLLED DEVICE.

APPLICATION FILED APR.2. I906.

Patented May 8, 1917.

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E. F. HATHAWAY 6L C. D. LANNING.

PATTERN CONTROLLED DEVICE.

APPLICATION FILED APR.2. 1906.

1 2%5,328 Patented May 8,1917.

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APPLICATION FILED APR. 2. 1906.

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Patented May 8, 1917.

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STATES EDGAR F. HATHAVTAY, OF BOSTON, AND CHARLES I). LANNING, 0F DORCHESTER,

MASSACHUSETTS, ASSIGNORS TO AMERICAN WARP DRAWING MACHINE CO1?- PANY, 0F BOSTON, MASSACHUSETTS, A. CORPORATION OF MAINE.

PATTERN-CONTROLLED DEVICE.

Application filed April 2, 1906.

o all whom it may concern Be it known thatwe, Flncsn F. Hxrrrv war and (nannies l). LAAJNING, both citizens of the United States, residing, respectively, in Boston, county of Suffolk, State of Massachusetts, and Dorchester, county of Suffolk, State of Massachusetts, have invented an Improvement in Pattern- Controlled Devices, of which the following description, in connection with the accompanying drawings, a specification, like letters on the drawings representing like parts.

Ou r invention relates to improvements in mechanism by which different mechanical parts for performing successive operations are put into motion intermittently and continued for definite intervals during each cycle of operations of the machine. Such machines ordinarily employ pattern mechanism Or the like for controlling the actuation of such parts by some predetermined adjustment. Our invention consists more particularly in the provision of various means for rendering such mechanism more nearly automatic in its operation; also the provi' sionof means for preventing injury to the parts of the machine either through carelessness in originally adjusting the pattern elements or through other causes; also in the provision of other means tending toward the simplification and greater eflicicncy of such mechanism.

()ur invention will be more fully understood by reference to the following specification when talren in connection with the accompanying illustration of one specific embodiment thereof, while its scope will be more particularly pointed out in the ap pended claims.

In the drawings,-

Figure l is a side elevation of a warpdrawi'ng machine, partially broken away, embodying one form of our invention;

Fig. is a plan view, on an enlarged scale. of one end of the machine, showing the principal parts of the pattern mechanism.

Fig. 3 is a longitudinal section taken through one of the clutching devices shown in Fig. 2;

Fig. 4: is a transverse section looking toward the clutch devices.

Fig. 5 is a transverse section looking to- Spccification of Letters Patent.

Patented May 8, 1915?.

Serial No. 309,323.

ward the reed separator clutch and showing the form of detent employed;

Fig. 6 is a view in end elevation on an enlnrged scale, but looking toward the left in Fig. 2, showing the yieldable driving connections for the flipper rod.

Fig. 7 shows in end elevation the operating device for the flipper rod;

Fig. 8 shows the same in side elevation;

Fig. 9 is a similar view showing the operating fingers separated;

Fig. 10 is a detail showing one part of the operating device, and i Fig. 11, a detail showing the remaining part.

lVhile for the broad purposes of our invention-the particular machine or mechanism designed to be controlled maybe other than that shown, we have herein illustrated the same as applied to a warp-drawing machine of the general. type shown in Patent No. 755,861, to M. F. Field, and'also in copending application Serial No. 142,250, filed jointly by ourselves and others.

In this type of machine, referring particularly to Figs. 1 and 2, there is provided a frame A, upon which are supported (but not here shown) the warp threads, harness eyes and reed. These are sustained parallel with the length of the machine and a carriage D provided with a drawing needle and suitable operating mechanism is caused to traverse the warp threads and draw successive threads through selected harness eyes and between selected reed dents.

Upon this carriage D there is also supported a plurality of operating rods or shafts, herein six in number, extending lengthwise the machine and acting to select and feed, according to predetermined arrangement,the warp threads, reed dents and harness eyes with reference to the path of the drawing needle. One of these rods (1 carries at the active part of the machine suitable thread-separating devices which under each full rotation of the rod or shaft presents the next Warp thread to the action of the drawing needle. Another of the rods a is connected to suitable reed-opening de vice, which also under a full rotation of the said shaft, spreads and opens the reed dents. The remaining and intervening shafts a inclusive, pass to their respective separating and feeding devices for the several harnesses, which in the machine illustrated are supposed to be four in number, arranged in sets of two each. For each semirevolution of the harness separator shaft an eye of its respective harness is presented within'the path of the drawing needle. A11- other semi-revolution places the harness eye out of the path of the drawing needle.

The ends of the several shafts are removably but fixedly held in sleeve sockets b--b-", which latter are journaled in the upright frame member 13. The sleeve socket members are secured each toshort operating rods or shafts a o, which extend oppositely from the several feeding rods cta"' and are rotatably mounted each in its respective sleeve or bushing (Z-Z (Fig. The sleeves cZ(Z are fixedly sustained in a second upright frame member 0 parallel to the frame member B. The end of the shaft 0 is drilled to receive the overhanging slidable plunger-rod e, carrying at its inner end the clutch pin f, the latter movable lengthwise the shaft in a slot there in from a position shown in Fig. 3, where it lies within a notch g in the stationary sleeve d, to a position within the notch it formed in the hub of the gear 2', which latter is loosely mounted upon the operating shaft 0.

From this it follows that with the plunger-rod in the position shown in Fig. 3 the operating shaft and its red is held stationary. With the plunger-rod moved and seated within the notch h, the operating shaft 0 is clutched to the gear 2' and with its red may be turned thereby. This construction, save for the proportions of the gears, is substantially the same with reference to each of the shafts aa"' referred to.

The several operating gears z are inter mittently but periodically driven during the operation of the machine through the following mechanism. Extending lengthwise the machine is the constantly driven driving shaft j, geared to drive the transverse inclined shaft 7', the latter in turn (Figs. 1 and 2), driving the short longitu dinal shaft Mounted on the shaft j is a disk which carries the pin j engaging with the overhead star-wheel j", so that for each revolution of the shaft j, which corresponds to a complete operative cycle of the drawing needle, the star-wheel is turned a fraction of a revolution, herein one-sixth. The star-wheel is secured to a second shaft j, carrying also the larger gear j meshing with the smaller overhead gear 2' connected as above described to'the operating shaft 0 and also with the still smaller gear 71, connected to operate the. shaft 0.

The proportions of the driving gears are such that at each complete reciprocation of the drawing needle the gear 2' is caused to turn through a complete revolution and the gear 2' through a semirevolution. The gear 2' meshes with its companion gear 2', the latter with the gear 2', and so on, whereby the several gears 2' i"', which turn the harness separator shafts, are given each a semirevolution, the rotation of one gear, however, being obviously reverse to that of the next adjacent one. Secured to the gear 2" is a gear 2', which meshes with the smaller gear 2" so that the latter is turneda full revolution for each reciprocation of the drawing needle. This rotation, as well as that of the remaining gears, takes place intermittentlybut periodically, as will be observed, through the action of the star wheel.

For operating the several clutch-devices in accordance with pie-determined adjustment, the exterior ends of the several plunger-rods 6-6 are engaged through the me dium of the adjusting nuts 7; with the yoked ends of upright levers ZZ"". (Fig. 1.) The latter are pivoted at their lower ends to the frame and provided with springs m which normally throw the levers outward and retract the plunger-rods, leaving the several clutches inactive. It will be obvious, however, that when a lever is moved against its spring, it causes an advance of its plunger-rod within the corresponding operating shaft and couples the shaft to the driving gear, this acting to give the operating shaft its half turn or full turn, as the case may be, at the instant the star-wheel is moved.

For moving the levers there is operatively related thereto, as in the aforesaid co-pending application, suitable pattern devices. These may be of any suitable construction, but in the illustrated machine they comprise a plurality of pattern-carrying chains,-one chain a (Fig. 2) for controlling the threadseparating shaft a, a second chain a for controlling the reed separator shaft a, and a pair of chains 71 sustaining a series of pattern bars a for controlling the remaining or harness selecting shafts (L3(63. These chains are sustained upon suitably supported sprocket wheels so as to travel with rotation of the latter and bring the pattern elements one by one in proximity to the upright controlling levers a. One set of supporting sprocket wheels is mounted upon a sprocket wheel driving shaft 0, (Figs. 1 and 2), the other upon the suitably supported counter-shaft 0. The former is journaled in brackets 0 secured tothe upri ht frame member C, and the latter is journaled in brackets 0', secured to the overhanging frame members 0*.

The driving shaft is given suitable movement to bring successive pattern elements intermittently in proximity to the operating levers by means of the driven gear 0" meshing with the larger driving gear 0'". The

gear 0 meshes with the underlying driving pinion 0 on a transverse shaft, which latter near its opposite end through suitable gearing connection is driven from the short shaft 7' Each pattern bar has four holes which are in alinement with the four operating levers for the harness eye shafts, and in these holes may be placed pattern pegs or pins 11*. The movement of the sprocket shaft is such as to cause engagement between the project ing pin which is in place upon a pattern bar and its corresponding lever when that pattern bar is brought into its active position for a sufficient interval and at suitable time to clutch a corresponding driving gear to its operating shaft during the time the former is moved by the star-wheel.

The pattern chains a and a operate in the same manner the pattern elements, however, being composed of pattern links a (Figs. 1 and 2) separated by one or more blank links it. The pattern chains may be made up in any desired length and the pattern links like the pegs may be adjusted in any predetermined order or relation.

It has been found in practice that the clutch members when rendered active by the forward movement of the operating levers under the control of the pattern mechanism, are not always disengaged on the withdrawal of the pattern control. Thus, a clutch pin f will sometimes stick after being seated in the notch 7L and will not be withdrawn by the lever-actuating spring until the operating gear 2' is given its subsequent turn by the star wheel. The pin, then suddenly loosened, is apt to jam between the fixed and movable sleeves with the likelihood of working a considerable damage to the machine. To avoid injury from this and similar causes we have provided (Figs. 2 and 3) a relatively stiff spring 72 held between the fixed collar 9 upon the shaft 0 and the sliding collar 1" to provide the gear sleeve 2' with a sliding fit upon the shaft. This permits the gear to yield longitudinally under pressure, while holding it in the desired position for performing its required function. In Fig. 2 we have shown the clutch pin f as jammed between the fixed and movable sleeves, the latter, however, having yielded through the medium of the spring 2), thus avoiding damage to the machine. To further facilitate this action, the vertical edges of the notches g and 72. are rounded or beveled, as represented in. Figs. 2 and 3.

It is also desirable to have the notches of the fixed and movable clutch members in substantially good alinement at intervals of clutch inactivity, and to avoid the possibility of poor alinement in the clutch members which lie remote from the star-wheel, through wear or backlash in the gears, we have provided (Figs. 2 and 5) the springpressed detent lever s, which is pivoted to overlie the operating shafts c, and carries the roller 8 adapted to seat in the notch or depression in the periphery of the disk .9 the latter attached to the gear 2 The depression is so located as to bring the disk and the gear to rest with the notches g and it in alinement and prevent possible overthrow of the gear beyond the position desired.

As has been stated, each harness separator shaft in one position acts to bring an eye of its respective harness within the path of the drawing needle but in a position removed by half a revolution therefrom to leave none of its harness eyes within its path. in order that a predetermined pattern may be followed, it is desirable that when one pattern is finally removed or run off from the machine the several shafts be left in an inactive position; otherwise, through carelessness. it will frequently happen when the machine is subsequently started up with a new pattern, the pattern arrangement will be entirely disarranged. For this purpose we have provided an attachment shown particularly in Figs. 2 and 4t, by which this result can be attained. This comprises a bar t, which is pivoted at t, and arranged transversely the machine to underlie the clutch members for the harness separating shafts. It will be observed that the clutch pins for the harness separator shafts are of greater radial length in one direction than the other. These are so arranged that the pin end of greater length is uppermost when the shafts are inactive and the clutch pins retracted but reversed when the shafts are active and the pins advanced. The underlying bar is so positioned that when a clutch pin is advanced for the actuation of its shaft, the pin passes just beyond the vertical edge of the bar and when reversed by subsequent movement of the gear, is there held by the bar and prevented from returning (see pin f Fig. at), when freed from the pattern control. On the next periodic movement of the starwheel, however, the shaft is turned another semi-revolution, reversing the pin and permitting its return if the pattern mechanism allows. This compels the subsequent return to its inactive condition of a separator shaft when once actuated so long as the bar 25 is in position. At one end of the bar is provided the swiveled pin t having an elongated head, so that the pin may be lifted between the two adjacent stationary clutch members, given a half turn and the bar thereby sustained. When out of use the pin 2& is disengaged from the sleeve and the bar hangs idly below.

l i hen the operator finally runs off the pattern he raises the bar i to its operative position (Fig. 41)., there leaving it, and is thereby assured that the harness eye shafts all;

will be finally left each inactive. If the pattern is not intended at any time to secure the drawing of more than one thread through a single harness eye, this attachment may also be used to prevent any mistakes which might arise from failure to sufficiently peg the pattern to cause the return of a separator shaft to its inactive position. In fact, this attachment renders it necessary under such circumstances, to provide a single peg only for the full actuation of a harness separator shaft instead of a peg to render it active and. a second peg on the next pattern bar to render it inactive. The reed opener shaft a normally turning as it does an entire revolution, should not be affected by this attachment and the clutch pin 64- therefore has no projecting end to conflict with the bar z.

Referring now particularly to Figs. 1 and 6, the machine is provided also with a pair of oscillating shafts a, a, one for each pair of harness separator shafts. Each of the said shafts is mounted for oscillatory movement beneath a pair of harness separator shafts and carries at its active end (Fig. l) a centering device 1). This centering device or flipper by being swung respectively toward the active harness is caused to engage with the support for the eye then brought within the path of the drawing needle and acts to center it squarely in the needle path. Each flipper shaft is journaled at one end in the carriage D and at the opposite end in the frame member B. Near the frame member it is provided with an upright, yoke-shaped finger '0, (Figs. 6 and 8) engaging an oscillatory pin There is also provided the depending finger o which works between a pair of pivotally mounted arms a (Fig. 6). The latter are drawn together by a spring '0 so that when the shaft is moved in one direction or the other by the oscillatory pin it may subsequently be brought to a vertical position (see left-hand flipper shaft in Fig. 6.)

The pin is given a swinging movement, and the flipper shaft thereby actuated, by one of the overhead separator shafts, when the latter in turn is moved to an active position. For this purpose the pin is carried laterally by a member which presents two.

upwardly directed fingers o, o, the latter lying (Figs. 6 and 7) respectively within the paths ofthe oppositely movable radial lugs W, o carried upon the separator shafts a a When one of the separator shafts is turned to an active position (see shaft a in Fig. 6) its lug strikes the finger, swinging the pin through an arc suflicient to move the flipper shaft and throw the flipper or centering device against an appropriate harness eye support to center the eye.

It sometimes happens through carelessness in pie-adjusting the pattern that both adjacent members of a pair of harness separator shafts are simultaneously turned. This, of course, results in a simultaneous and opposite engagement with the flipper shaft, causing stoppage of the machine and sometimes considerable damage to the mech anism. To render such an accident harmless we have provided a yielding connection between the fiipper shaft and the separator shafts. This is provided by making the two fingers o o relatively yielding. For this purpose the finger 11 which is pivotally mounted in the frame member B, has a forwardly projecting stud Q). The outer end of the stud is provided with a washer holding in place the adjusting nut 1; thus acting to retain the sleeve @2 which is formed integrally with the finger v and has rotatably mounted thereon the finger v. The two fingers present substantially flat engaging faces and are pressed one against the other by the relatively stiff spiral spring @1 which opposes their separation. In each finger face there are provided concaved depressions o, in each of which is seated a ball o These normally assume the position represented in Fig. 8, but under strain the fingers can yield or turn toward each other slightly, the balls acting then to wedge the finger f outward against the spring 11 (Fig. 9). The oscillatory pin 41 is mounted for free play in a vertical slot o it being therein retained, however, by the strap o (Fig. 7)

In the event of simultaneous engagement of the two fingers by their respective lugs upon the adjacent separator shafts, the fingers are turned to approach each other, as shown in Fig. 7, the spring yielding to permit this movement. On the next movement of the separator shafts the flipper shaft is returned to its normal position as usual.

While we have shown our invention in detail for the purposes of illustrating the one'specific embodiment shown, it is to be understood that the invention is not limited to the details herein shown and described, or to the relative form or arrangement of parts, but that extensive modifications therein may be made without departing from the spirit of the invention.

Claims:

1. Driving mechanism for machines having operating devices to be intermittently actuated, comprising an intermittently rotated clutch member normally free to turn relatively to its corresponding operating device, a counter clutch member capable of linear movement independent of the other member, means for disengaging said clutch members, pattern mechanism controlling the movement thereof, and means permitting a yielding longitudinal movement of said rotatable clutch member.

2. In a machine for operating upon warp threads having a plurality of operating parts to be intermittently actuated, the combination with pattern mechanism, clutch members controlled thereby comprising an intermittently rotatable part, a stationary part, a part adapted to be moved into engagement with said rotatable or stationary part, and. means permitting relative yielding movement between said stationary and rotatable parts.

8. In a machine of the class described, the combination with pattern mechanism of the sleeve (Z, the gear 71, the cooperating clutch pin 7 adapted to be connected thereto and the spring p associated with the gear.

4. In a warp-drawing machine the combination with drawing-in mechanism, harness eye positioning devices adapted to be intermittently actuated, pattern mechanism, clutch members controlled thereby for the actuation of said positioning devices, said clutch members comprising each an intermittently rotatable part, a stationary part, a part adapted to be moved into engagement with said rotatable or stationary part, and means permitting relative yielding movement between the said stationary and rotatable parts.

5. In a warp-drawing machine the combi nation with drawing-in mechanism of harness eye selecting devices adapted to be in termittently actuated, pattern mechanism for selecting and causing the actuation intermittently of one or more of said devices, driving means, and yieldable connections between said driving means and a part to be actuated to prevent injury to the machine.

6. In a warp drawing machine, the combination with drawing-in mechanism of a plurality of harness eye selecting devices, means for selectively controlling said harness eye selecting devices, driving means, and a yieldable transmitting device between the driving means and each selecting device.

7. In a warp drawing machine, the combination with drawing-in mechanism of a reed opener, harness eye selecting devices, means for intermittently moving said reed opener, and a yieldable power-transmitting connection between the moving means and the reed opener.

8. In a warp-drawing machine the combination with a plurality of harness eye positioning devices and pattern controlled mechanism including yieldable clutch members for controlling the same.

9. A warp-drawing machine having drawing-in mechanism, positioning devices for positioning or selecting the harness eyes in accordance with a predetermined arrangement, pattern controlled mechanism and safety devices between the pattern controlled mechanism and the positioning clevices.

10. In a textile machine the combination with the driving gear 2', the shaft 0 on which the gear is normally free to turn While adapted to slide longitudinally on the same, and the spring 19 adapted to exert a yielding pressure against longitudinal movement of the gear.

11. In a machine for operating upon "arp threads having a plurality of parts to be intermittently actuated, the combination with pattern mechanism, intermittently rotatable clutch members controlled thereby for assuming intermittent control of the respective parts, driving members for engaging said clutch members, and means for enforcing alinement of the clutch members with the driving members.

12. A warp-drawing machine having a plurality of harness eye selecting devices adapted by predetermined selection to be rendered intermittently active and inactive, pattern-controlling means, and means for maintaining all the devices inactive on running off of a pattern.

13. A warp-drawing machine having a plurality of selecting devices adapted by predetermined selection to be rendered intermittently active and inactive, and means operative on rendering one of said devices active, subsequently to cause its return to an inactive condition.

1+1; A machine of the class described having the pattern mechanism and selecting devices described and provided with the bar 2? and cooperating clutch pins 7 adapted to engage with the bar and control the move ment of the selecting devices. I

15. A machine having a plurality of parts to be intermittently actuated and provided with pattern mechanism, a series of plungers to be linearly actuated by the pattern mechanism, clutch pins upon the ends of said plungers, intermittently rotatable counter clutch members connected with suitable operating mechanism and adapted to be engaged by the said clutch pins, and means for maintaining the engagement thereof after the withdrawal of pattern control.

16. A. machine having a plurality of rotatable shafts adapted to be intermittently operated, actuating mechanism adapted for connection to said shafts to intermittently turn the same a semi-revolution, pattern mechanism for selecting and connecting a predetermined one of said shafts with the actuating mechanism, and means providing for the subsequent completion of an entire revolution to permit disengagement.

17. A warp-drawing machine having a thread-placing device, means for positioning the respective eyes of a plurality of harnesses Within or out of the path of the thread-placing device, means for controlling the positioning of these eyes in accordance with a predetermined pattern, and

means for insuring the withdrawal of an eye once placed therein from out of the path of the thread-placing device.

18. A warp-drawing machine having a pair of rotatable shafts for feeding and locating respectively the eyes of a pair of loom harnesses, means for intermittently imparting rotary movement to the shafts, pattern mechanism for predeterminately selecting the shaft to be rotated, a rock shaft adapted to be rocked in one direction or the other through engagement with an active feeding shaft, and yieldable connections intermediate the rock shaft and feedingshafts to protect the mechanism in case of simultaneous actuation by both feeding shafts.

19. In a machine for acting on warp threads, the combination with a pair of intermittently but oppositely rotatable feeding devices, of a reciprocatory opera-ting device presenting an engaging finger respectively within the path of a part upon each of said feeding devices, a relatively strong spring normally causing the separation of said fingers and the consequent oscillation of said operating device on the rotation of either one of said feeding devices but permitting the approach of the fingers on the simultaneous engagement therewith of the said feeding devices from opposite directions.

20. A machine for operating upon warp threads having a plurality of operating parts to be intermittently actuated, pattern mechanism for selecting the part for actuation, a member adapted to be oppositely actuated through the medium of said pattern-controlled parts, and yieldable means to prevent injury to the mechanism on the simultaneous actuation of said member by a plurality of said parts.

21. In a Warp-drawing machine, a pair of separating and feeding devices for separate sets of loom harnesses, pattern mechanism for causing intermittent actuation of said devices, a centering device for the harness eyes common to both sets of harnesses and actuated by the active one of said separating devices, and yielding means to prevent injury to the mechanism on simultaneous actuation of said centering devices by said separating devices.

22. In a machine of the class described, the combination with the driving shafts a 0?, the shaft to and the cooperating fingers o, o connecting the shaft in with the driving shafts respectively.

23. A warp-drawing machine having a device for acting upon the eyes of either of two adjacent harnesses, a plurality of devices for actuating said device and safety means for preventing injury to the machine in the case of its simultaneous actuation by both devices.

24. In a warp-drawing machine the combination with a harness support of harness eye engaging means for engaging the same to effect at'different times a plurality of different operations, actuating means for said engaging means to control the same with reference to a predetermined operation, and yieldable means for avoiding injury to the machine in the case of simul taneous actuation of said engaging means for different operations.

25. In a warp drawing machine, the combination with a plurality of selecting devices adapted to be intermittently actuated, pattern mechanism for separating, selecting and causing the actuation intermittently of said devices, in accordance with a predetermined pattern arrangement, driving means, and yieldable connections bet veen said driving means and a part to be actuated to prevent injury to the machine.

26. In a warp drawing machine having a plurality of selecting members to be intermittently actuated, the coml'iination with an intermittently rotated clutch member for each selecting member normally free to turn relative to its corresponding selecting member, said clutch member having a longitudinal recess, a clutch pin capable of linear movement independent of the clutch member but adapted to enter the recess therein, means for disengaging said clutch pin from said clutch member, a pattern mechanism controlling the movement thereof, and means permitting a yieldable longitudinal movement of said clutch member away from said pin.

27. In a warp drawing machine having a plurality of selecting members to be intermittently actuated, the combination with an intermittently rotated clutch member for each selecting member normally free to turn relative to its corresponding selecting member, saidclutch member having a longitudinal recess, a clutch pin capable of linear movement independent of the clutch member but adapted to enter the recess therein, means for disengaging said clutch pin from said clutch member, a pattern mechanism controlling the movement thereof, means permitting a yieldable longitudinal movement of said clutch member away from said pin, and a fixed member having also a recess adapted to receive said clutch pin on its disengagement from said clutch member.

In testimony whereof, we have signed our names to this specification, in the presence of two subscribing witnesses. I

EDGAR F. HATHAIVAY. CHARLES D. LANNING. Witnesses THOMAS B. Boom-r, EDITH E. CHAPMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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