Патент USA US2119413код для вставки
May 31, 1938. N. A. BATCHELDER 2,119,413 LOOM GOVERNOR ' Filed July 19, 1937 127108233034.- _ N92608:, c/Z. Baifci’zeider, ‘ Patented May 31, 1938 ‘2,119,413 ‘ UNITED‘ STATES PATENT ‘OFFICE- ' 2,119,413 . _ . LooM GOVERNOR. ‘ Nelson A. Batchelder, West Barrlngton, R. I. ‘ Application July 19, 1937, Serial No. 154,332 ‘ 3 Claims. (01. 139-1) . - . My present invention relates to the art of weav - or shuttle changing type. In Fig. 1 I have rep ing, more particularly on ?y shuttle looms em ' resented somewhat diagrammatically, a battery l5 of fresh bobbins having the usual hammer l6 ' ploying shuttle-picking'mechanism, and aims to - regulate,'equalize, increase the speed and other 5 wise improve the operation of looms in general. - In the accompanying drawing, illustrating by' > way of example one embodiment of the inven tion, - Fig. 1 is a view looking at one side of a loom, 10 the right hand side inthis instance, the front or ‘take-up end being at the left in said ?gure and the rear or let-off 'end at the right; ' Fig. 2 is an elevation ofna governor unit or assembly in accordance with the invention and as 15 shown in Fig. 1, looking toward the front of the - loom, that is, from right to left in said ?gu're: and Fig. 3 is a section centrally of the mechanism of Fig. 2, in the plane of the shaft. ' . Referring “ more particularly to the drawing, I“v and dagger [1 for cooperation withva bunter l8 on the‘lay. Actuation of said parts, to e?ect re-.r 5 ' plenishment, may be controlled by suitable feeler . mechanism (not shown) operating to effect a call for a' new weft supply either upon depletion or upon exhaustion or substantial exhaustion of the previous supply in an active shuttle. In addition 10 the loom is provided with harnesses and shedding mechanism, other equipment let-offasand may take-up be appropriate means and tosuch the particular weaving job. ‘ The parts above referred tov may‘ be of any 16 known or preferred construction,_ the present in vention residing in the combination therewith, or with any loom, of regulatory means of which I will now describe one example selected for .20 have in Fig. 1 represented only such main parts ‘illustrative purposes. and in such means per: se 20 of a loom as are adequate for the purposes of the. present disclosure, selecting for the sake of illus tration a plain loom, such for example as a Drapf er model “E’? and which may be of the automatic as adapted for use upon a loom. ' ' As best seen in Figs. 2 and 3, the crank shaft 6 is extended outwardly beyond the loom side frame 5. Upon this extension_‘or'end portion of the crank shaft there is mounted, [loose upon the 25 25 replenishing or other type. As will be apparent "shaft, a relatively large, heavy rotatable inertia from the following description the advantages of the invention are obtainable in the combination element or governor illustrated in the form of a and‘use of the latter 'upon most, if not ‘all, looms; wheel- 20. At‘one face‘ of this (governor wheel, and especially those of the higher speedtype, or‘ herein the inner face, a thrust collar 2| is pinned . or otherwise fixed on the shaft, holding the '30 30 'in conjunction with obtaining a maximum of op wheel against inward movement... _ > ' _ ' erating efficiency for any given loom. 'At the other face of the wheel, the outer face In Fig. 1, one side frame, herein that at the right facing the front of the loom, is indicated at in the illustrated example, is an integral or other » 5; see also Fig. 2. The main or crank shaft is seen 35 at 6 and the cam shaft at ‘I. At the loom front, hub 22 forming one element of an automatic ' at the left in Fig. 1, is usual breast beam 8, while clutch means. Said hub has at its outer face a 35 circumferential series of rather shallow, rounded at the rear are the bearings -9 for the warp beam. The loom side or end illustrated is in this in lar teeth 24 on the other main element 25 of the stance that opposite the power-receiving end, the 40 drive mechanism and other associated parts ac cordingly not being seen in‘ Fig. 1. Such drive mechanism may be of the fast and loose pulley type, or motor driven, generally through a fric tion clutch, or' otherwise, the present invention -45 being equally applicable with anyxform of drive for the loom. or scalloped teeth 23 adapted to mesh with simi; clutch‘mechan'ism, said element being ?xed for rotation with the shaft 6 but being slidable to- 40 ward and from the element 22, 23 which is ?xed for rotation with the wheel 20. Said slidable ele ment 25 is in the ‘form of a collar or sleeve sur rounding the shaft 6 and movable lengthwise of it.‘ It is angularlye?xed relative to the shaft, for 45 rotary movement with it, as by means of an in . _ . ternal keyway slidably receiving a key 26 s‘et-in a The lay and right-end shuttle box are repre way 21 in the shaft 6'; see Fig. 3. Said clutch ele sented at [0 and the reedv at l I, the lay being sup ported for swinging movement by the usual ' ment.25 is slidably received on the reduced inner ‘end 28 of an adjustable sleeve 29 having an outer 50 50 swords, oneof .which is seen at l2 and its pivot collar or shoulder portion 30.' This sleeve 29 is al mounting at l3.- . The lay is operated by the crankshaft 6,-one connectingdcrank arm being ?xed on the shaft, adjustably, as by one or more indicated at It. As previously stated, the loom set screws 3|. Surrounding the intermediate por may be equipped for automatic replenishing, or tion of the sleeve 28 is a compression spring 32 55 otherwise, and may be of the bobbin changing bearing between the outer shouldered portion 30 55 L 2 2,119,413 of the sleeve and the slidable element 25 and urg ing the latter into engagement with the clutch element 22, 23 of the governor or ?y wheel 20. The spring tension may be regulated by adjust- -' . ably varying the position of the ?xed sleeve 29 lengthwise the shaft. ' The operation of the automatic governo ‘ mechanism will readily be understood from' the ' foregoing description, in connection with the 10 drawing. Assuming the loom to be at rest, power is applied tr start it in whatever manner it-is supplied. As the loom .starts up, the inertia of the governor [wheel 20 causes it to lag behind the shaft 6, as permitted by reason ‘of the scal rubber or the like generally are provided to cush-I ion the blow of the daggers but nevertheless the abrupt stopping of the lay is a comparatively- _ violent action, in principle a collision of a power driven moving part with a ?xed part, and any thing tending to increase the violence of this ac tion would be objectionable. ' I The regulatory or governing means of vmy in vention produces a truly remarkable stabilizing, evening and easing eifect on all rapid actions of I the loom, and throughout the entire operating; cycle. It has long been recognized that the main actions of a ?y-shuttle loom, especially the recip rocatory motions of picking-and of beating up, 15 loped or cam-like teeth of the-clutch elements, are not ideal mechanically; witness the efforts to develop circular looms. In‘accordance with my against the pressure of its spring as the sets invention the violence of the motions referred, the slidable element 25 being forced outwardly .of teeth 24 and-23 are camme'd or ride past each other. During a few initial picks of the loom, perhaps half a dozen or more, the speed of the wheel 20 gradually builds up, under thev effort of the spring 32 to interengage the clutch ele merits, until it attains that .of the shaft. 6, when to is relieved to a marked, important extent, and the action in all phases of the operating cycle is _ in effect steadied and eased,vwith the additional . result that materially higher operating spee . may be utilized for any given loom. ' The following considerations, among various both parts continue to rotate as a unit. In the others, will demonstrate the bene?cial effects of stopping of the loom for any cause, the reverse the means of my invention. If an ordinary loonj;,,“‘" action takes place. The momentum of the gover- v unbalanced, without my governor mechanism, is ’ nor wheel 20 causes it to overrun the shaft,. the speeded up substantially, by the application-of clutch elements automatically letting go and more power, the'tende‘ncy of the- over-powered allowing the shaft to' come to rest while the picking action is to knock the ?lling off the bob -30 wheel continues to revolve, camming the slidable. bin in the shuttle, an effect known as “slu?ing clutch element outwardly against its spring and" off." But with the'application of my governor passing the rounded teeth of the latter, until shortly the wheel also comes to rest. It will be evident that the automatic clutch the power applied to the picker stick to drive the _ mechanism, which may be of any suitable form other than that herein shown by way of exam shuttle across the loom acts ‘in a gentler and more e?lcient manner due to the even speed of all parts as contrasted with the relatively erratic action in an unbalanced loom. In actual tests continued ple, is effective to keep the starting torque upon the loom parts relatively low despite the presence otherwise customary operating conditions, I have, of the ‘heavy governor wheel, so that little or no additional load is placed upon the parts. And ' conversely, when the loom is stopped, whether by the operator or automatically in response to some ’ failure or improper loom action, such as breakage vor failure of warp or weft, improper boxing of the shuttle or other fault calling for loonr stop-W. page, the clutch automatically releases and allows ' the governor wheel to continue to revolve until its momentum is spent, while the loom parts come quickly to rest in the usual manner. The automatic stopping of a loom, particularly that’ effected-by the protector motion, for protecting the warp yarn from being broken by the lay and shuttle in case the latter for any reason remains in the shed when the lay moves for ward to beat up‘ the ?lling, is a rather violent action, entailing great strain on the loom parts. It is accordingly important that such strain produced by the stopping'or so-called knocking off of the loom should not in any event be in creased. -Were it not for the automatic release of the relatively heavy inertia or govemcr ele ment of my invention there would inevitably be an undesirable and impracticable increase in the violence of the knocking 01f action. This will be 65 appreciated from the fact that the protector mo tion above referred to acts to present an im movable part in the path of the lay, whereby the latter is stopped instantaneously and positively by coming into collision with the immovable over a period ‘of weeks in a weave room, under for example, operated a Draper model “E’” 40 inch‘ loom equipped with my governor at the rate ‘of 200 picks per minute, throughout the entire period referred to, weaving ?rst grade cloth in ‘ every way comparable to the product of that loom at its heretofore top speed of 150 picks per” ' minute. '1. The resultant saving in production costs on“; looms equipped in accordance with my invention involves not only a very substantial direct labor saving, but the improved operation of the loom as a whole effects a’ marked saving in the general _ overhead charges against a loom, including'such items as maintenance, depreciation, indi’reet'labor and others, which further saving itself may amount to twenty percent or more of the over head cost per yard of the woven product. , Striking proof of the evening and easing’ effect of the balanced power on the picking action, in the practice of my invention, is also found in the fact that if a usual loom, such as above referred to, is abnormally speeded up‘ by theniere addi tion of power, great di?iculty will be experienced ea in preventing the shuttle from re-bounding out of the shuttle box and causing the loom-to‘ knock 01f by operation of the protector motion. Even a slight addition of power‘ in the shuttle boxing is liable to throw the shuttle ‘entirely out of part, such as a lever associated with the shorter handles of the loom and struck by a dagger on the loom, while a slight: reduction in the power of the boxing action is apt to result in the‘ shuttle not being driven the whole length of the lay and‘ again causing the loom to knock o?’, or else re the lay and acting to stop and hold the lay far‘ sulting in a smash. But with the provision of enough away from the fell of the cloth so that it will not be able to break the warp ends by 76 driving the shuttle against them. Blocks of ' pletely obviated, the pick is put in easily, and the, 1,0 the means of my invention such results are com loom action as a whole is more nearly comparable 2,119,413 to that at an ordinary speed of not materially above 150 picks per minute. Further important evidence of the stabilizing and power-balancing or evening effect of my de vice is had in the fact that breakage of warp ends, at the high speed of 200 picks per minute is decreased, rather than otherwise, as compared with that generally experienced at the previous average top speeds at 150 picks per minute. This v10 is evidently due to an'easying of the harness ac 3, picking means, shedding mechanism,’ a drive shaft for the loom, power-applying means for the shaft, an inertia governor wheel looselyre ceived on the shaft and separate from the power applying means, and automatically engaging and releasing connections between the wheel and the shaft including oppositely disposed hub-like members surrounding the shaft, each having a concentric series of arcuate teeth, one of said tion especially, as well as the similar steadying, members ?xed for rotation with the wheel and 10 and smoothing eifect on all other rapid actions the other ?xed for rotation with the shaft, said of the loom. This decrease in warp end breakage members being relatively movable axially away from each other by a mutual camming action to _ has been demonstrated by actual test under work 15 ing conditions in a weave room, continued over a effect said automatic release of the wheel and shaft, and spring means opposing said relative 15 period of weeks. The foregoing improved re sults have been obtained-on'a forty inch loom driven by an electric motor (1/_, h. pf) through a friction clutch, .as well as upon looms having a belt drive. , In a further demonstration of the bene?cial ef fects of the power-controlling means of the in vention a used 40' loom with a light frame was rebuilt to weave an 80" cloth, by inserting an '_ extra central section. Ordinarily this light loom would not stand such an augmented shuttle throw, and could not‘ satisfactorily pick the shuttle across the distance necessary for an 80" warp. But in combination with the governor means of my invention the widened light-weight loom performed in a highly acceptable manner. It will be understood that the weight of the governor wheel and- the loading of the clutch spring are selected and proportioned to the par ticular loom and to the result desired, whether that of, increased operating speed for a given I loom, or an increased width of warp as made pos- , 'sible by'the application of greater power under the stabilizing and constant speed effects of the regulating device, or simply an easing and balanc ing of the loom action, so as to decrease warp and breakage andweave more perfect cloth on movement of said members and urging them to ward wheel and shaft engaging position of their teeth. ' 2. In an organized loom, in combination, a lay, pickingmeans, shedding mechanism, an operat '20 ing shaft element for the loom, power-applying means for the shaft element, a rotary inertia element loosely mounted on the shaft element and separate from the power-applying means, oper ating connections between said elements includ 25 ing a plurality of projections ?xed for rotation with one element and a like number of receiving formations ?xed for rotation with the other ele ment, said projections and receiving formations‘ being relatively movable to and' from driving 30 relation, spring means urging them into driving relation for rotation of the inertia and shaft elements together while the loom is running, and said projections and receiving formations being shaped and arranged for self-camming move 35 ment out fromvdriving relation and against said- - spring means, to allow relative rotation. of said inertia and shaft elements in stopping‘ and in starting of the loom. ' 3._ In an organized loom, in combination, a lay, picking‘ means, shedding mechanism, a drive shaft for the loom, power-applying means for the shaft, aninertia governor wheel loosely received crease. Thus, for example", with the slower ‘running, wide. looms‘the weight of the- wheel and on the shaft and separate from the power-apply the springtension for the clutch are made greater , ing means, and readily self-releasable connections operatively interposed between the shaft and ‘the than for narrower higher speedv looms. In any wheel, said connections comprising opposed con instance the result is to stabilize the main’move centric series of yieldably interengageable pro the particular lo’om, irrespective of speed in ments of ‘the loom, including that of the lay, the picking action, and the shedding or harness ac tion, affording a constant speed and great regu larity throughout the whole operating cycle. Likewise it will be understood that other con structions of’irutomatic engaging and releasing _ means for the govemor' wheel may be employed, either positive or of the friction type, such as a disc or plate friction clutch, arranged to‘ afford the automatic operation as herein described. jection and indentation formations including ‘a formation series ?xed for rotation with the shaft 5,0 and a formation series ?xed for rotation with the wheel, said connections being relatively mov able between driving and releasing positions, and spring means automatically controlling said con nections, urging them to driving position for ro 55 tation of the vwheel and shaft together while the loom vis running, and permitting them to yield Such constructions, however, involve the use of ’ relatively to move themselves to releasing posi tion wherein. the wheel may, freely overrun the additional parts and mechanism, whereas the ex tremely simple embodiment as herein illustrated shaft without substantial frictional drag thereon has proven highly eflicient and is eminently suit tending to oppose braking of the shaft, in stop ed for most if not all 100111 installations. ping the .loom, and ‘so that the shaft may advance My invention is not limitedto the particular angularly~relative to the wheel and impart iri-v embodiment thereof as ‘herein illustrated and - creasing momentum to the latter‘ during an initial ' described, its scope being set out in the following or starting period at the end of which the wheel ‘claims: attains loom shaft speed, in starting the loom. I ‘claim: _ ~ _ 1.‘ In an organized loom, in comblnatioma lay, NELSON A. BATCHELDER.