USRE23554E

USRE23554E - Controller

Info

Publication number: USRE23554E
Authority: US
Publication date: 1952-09-30

Description

IN VEN TOR.

@Hrm/fr C. Fl MILLER Sept. 30, 1952 CONTROLLER 3 Sheets-Sheet 2 Original Filed Feb. 28, 1948 w25-m M f @Afro/wip( FIGS.

Sept. 30, 1952 c. F. MILLER Re 23,554

CONTROLLER Original Filed Feb. 28, 1948 3 Sheets-Sheet 3 F|G.5. l

i JNVENToR. /dua ff//w BY lhave beenv recogniaed.

Reissued Sept. 30, 1951"?A CONTROLLER Charles F. Miller, Philadelphia, Pa., assigner to Jacquard KnittingMachine Co., Inc., Philadelphia, Pa., a corporation of New York riginal No. 2,534,724, dated December 19, 1950,

Serial No. 11,969, February 28, 1948. Application for reissue April 4, 1952, Serial No. 280,560

y `9 Claims.

a Matter enclosed in heavy brackets appears in the original patent but forms no reissue specification; matter printed in italics indicates the additions made by reissue.

This invention relates to controllers employed to start, stop or modify industrial operations at intervals, and generally in a repetitive manner.

- For example, in certain circular knitting maticular length of cloth, it is necessary to repeat the series of operational changes, whatever they may comprise. The present invention relates to controllers of the type that are adapted to bring about operational changes which, asin the case of those mentioned, need to be brought about at intervals of greater or lesser duration. It is not limited to the operations mentioned above however, and while it is particularly well suited to the control of circular knitting machines, `it is not wholly limited thereto. Instead, speaking broadly, the invention is of general application to controllers of the type indicated as will become apparent from the matter hereafter.

As is Well known, controllers of the type indicated have one or more patterns to directly direct the desired changes. Whatever this pattern arrangement may be however, such a controller commonly employs in addition a master control device or mechanism having its own pattern to advance the change-directing pattern or patterns whenever a change is to be made in one or more of the operations. Speaking generally, the use of a master control device or mechanism to call the change-directing pattern or patterns intoaction only when the need for their action arises, permits the change-directing pattern or patterns to be shorter and the whole mechanism more compact than it would be otherwise.

With such arrangements the master control device or mechanism, or some part of it, is driven continually in a'xed time relation to the operation or operations to be controlled, so that the various changes may occur at the proper times relative to those operations. Customarily at least, the master control mechanism or the part of it that is to operate continually, is drivenfrom the power shaft of the machine to which the controller is applied. As commonly built heretofore however the master control device includes (i. e. incorporates or has associated with it) a pawl and ratchet.` This has two faults that long First, whenever the partvof `vnin a ratchet is advanced by the pawl the momentum of the parts may cause the change-directing pattern cr patterns to advance beyond their intended new positions, thereby causing imperfect operation. Second, the ratchet is free to be turnedvaccidentally, or manually by someone unfamiliarwith the effect of the action, and thereby changes made in the operations at improper times;v u Speaking generally the present invention eliminates such faults by locking the mastercontrol mechanism and all its parts to the shaftfor other powder device by which the controller mechanism is driven, except possibly when the master control or some part of it is deliberately unlocked from the driving mechanism or from an associated part by means of attachments provided for that purpose. Such attachments vmay be provided to permit the various parts o'fj'the controller and its patterns to be brought initially into the desired time relations.

Primarily this result is accomplished by eliminating all pawls and ratchets and employing instead, at the master control mechanism,` constantly intermeshed toothed gearing, and preferably similarly connecting the change-directing pattern or patterns to the shaft or otherv power device which provides the power to advance it or them. The latter connectionmay be ,a Geneva type of movement, and where the pattern of the master control mechanism is to be advanced intermittently, the toothed gearing which connects it to its driving shaft canbe a Geneva type of movement also. Where it is desired that the pattern of. the master control mechanism be advanced quite slowly relative to the driving shaft, e. g. where it is desired that the intervals between its successive advances be rather long, a succession of gears, preferably a plurality 'of Geneva movements, can be interposed between the driving shaft and this pattern,y the first being driven directly by, say, the driving shaft and the last advancing the pattern. Also where'a complete cycle of the controlled operations comprises, or may require, complete cycles 5 of a number of operations (as, for example, in the case of a Acircular knitting machine having 'a number of feeds, Where a completev rotation of the cam cylinder can be regarded as al completev e like teeth, and is positioned next to I3 so that lthelconcaveend of eachioifzitsteeth 2l can engage and loci:` with the collar`A I Il" of gear B when the sleeve 6 is slid to the left on shaft I (Fig. 9) and be turned by the single tooth 9 on the gear 8 when the sleeve 6 is slid to the ight (Fig. 8). Additionally carried on the hub Fig. 2 is an isometric projection of `/tl 1e" s ax'rier e in its housing. Fig. 3 shows the `A`controllerhousing broken away atjthe master control` mechanism and the Genevafwheels `removed from their hub and turnedoutwardly. Fig. 1,4 is a side elevation of the controller witha part of the housing broken away. Fig. 5 isan end "is an exploded View showing.k thev Atwo Geneva Wheels as viewed from"their"`inner`"sides and with the follower armthat is actuated by one rthemqadvance. tlilmaster @mm1 .Pattern .,efend'oreacn. .meer@cylebfihefkniftig Fig.' '1 iis' see'l orfjshowiiig 'one or the 'r'tinis patterns and its dessein-,ed

ngg'earin' position `for turri'ingboth of Vthe ..9S1i'bntl10l' Gnll'whfve1s-pg- .9 is Elfde* tail' showing the same gear in' position forv turnins only the 'me master @new Gehe-va weee locking .oilr thev outer or' "second masterk v'con- 't enevawheelagainst turning the master 'sprocket wheel. Y @umg ,tof the 'drawmgsil he .Sh-Saft.. l Cf. the v 9;50'nijroller, driven continuously from thcjniain lift 0f I ,the knitting j machine. not `.liwnl 'ttroush gears; 2.115.,summed-1n'bearings a 'in "b eketslfrine'ctd t thehousiig L5 0f. the controller. Since this controllerisvdesigned for slijt-:I'eed knitting machinewlerein allchanges inbp'eration 'are to be madeat` one ,and the same place withrespectfto theneedle cylinder, efsh'ait i[is issuned 'to rotatepiice foreach ''iass ,fiel-eed vr thatplace.. Af-fixed te Shaft "yaf'keyj-sq that itwiu 'be turned with the f atj the saine timefbe slidable' axially th le'ori, i s the lv sleeifefli whichytoward its left d nd. "1111s th'm, l .having Pointed end Figre fundamenta #sieht han@ en@ has ge a, .navidad-.wandte ,singlegearlioomp 2 f' cynndriel qr'tiorizthap 'mayfbeormed collar IIJ, "Except i'orlltheprojecting tooth nd thefriec'ssary'slotsgat its two sides, ,the 8 is"cylindricaland'of the same diameter 1lb` lf2 1in, ULS lOSlY-Cled" he. .dln fer' or inner Geneva "wheel I3" so positioned i1-.can be turned 'by me 'toom 9j n the g'ear`j8jas thetooth `engagesYs ucessively in each [oft es'lots I4 between the teeth I5 of the wheel. 'rh 'conectas-arme ends orme teeth were thanpthy .lock 'wcm- Opihe inner, ific@ ot'theGeneva Wheel I3 is acircular channel or "rdve ll1 fvrovided... with.. a' 'number 0f tri portions I3.' in thepresent instance three. eduil"fangbiillrly spaced,` and correspondingly, 'since the liiitting 'machine for which this controller was 'iisigd is;l ajsixefeed jiachine. jrhey when Vla as eignteeiitjeetn lsjir'igjsrw'rhe groove .l1 y bepovidedby concentric applied rings I6. 'carried ontliehuliv I2 btjastened there- I`"to ,"as fmb'y"screws I9@ isthe drivable member.' or "itcieneva 4wheel zu. This has thesamepiagn eter as Geneva Wheel I3, and the same number of nism.v Fig. v8 fis; a; detail '"sho'wing the isicrfledahub 1,2 rotatable thereon. on l vmounted on the sprocket" '22.

Vmounted in the beam' @Il "and,confill'ected"4 I2 is the ,sprocket 22 which is furnished, off its thesprocket 22 to the hub in whatever angular position'the desired timing may require. The 29 and the shaft' rotatably mountedfin thewallf; A

coverfplate 34" covers" the Geneva wheels 'Ifaiid directing'patternsjinto actionjjat the d" `f;-

times'as will be 'understood' constitutethepa "tern of the master'control mechanism; "It'f'is the kslotted link `42 which turns anche pivqtiiin theV left. Similarly, the upper end or: -the {'pfin (i4 is engageable by the left/hand side' ofthe Iit Acan be vengagedjby thecam 1.

. InV brief. the Gehetai wheels 1li: eintnstitute successive 'gears for driving the'fmastr control pattern 35 from the mainfshaft ord-the once in a complete cycle o f vthelrni-ttiri`g machine `l(i.` e. the passage ofjsi'xieeds overa given-point),

rserve to time the advances of theY masterlcontol mechanism pattern "with irespect to l complete Cyle. I,

The -mechanis'm directly connectingV th'e mas- I ter chain 35' tothev carriers 'of 'the afngef'dlicting patterns andfbyineans of which lthefmaster control mechanism. )acting A through the 'master chainY 315, bringsn those patterns into'and t les them out ,Qf Operation, iS as' ffllOWSJA .1. ler arm, turning on pivot 46 secured' to the' holis- `follower` roller III` vwhich constitutes itsjfeeler, 11131511 the master control chain '35v (Figs 2' d'5). vThe@lorraineend fof tlieiiel'ea'r) Y, tothe upper en d of a verticaljlink' 49 vwhich; in

beam 48. This lever I turns on pivot pin 52 secured to the beam 40, and its left hand end, as viewed in Fig. 4, is shaped so as to form a bracket 53 extending under the beam 48. Connected to the bracket 53, and extending through the beam 48, is the sliding pin 54, and a slotted link 55, which turns on the pivot 55 secured to the beam 40, connects this pin 54 to a second parallel sliding pin 51 also mounted in the beam 48. Above the

vertical pins

54 and 51 and slidably keyed on the shaft I in the same manner as` sleeve 6, is the sleeve 58 which toward its right hand end carries the pointed cam 59 and which at its left hand end carries the gear 68 provided with the single tooth 6I and has a cylindrical portion 62 that again may be provided by a separate collar. Like the gear 8, the gear 60 is cylindrical except at and adjacent its tooth 8|, and its cylindrical diameter is equal to the diameter at 62. The upper end of the sliding pin 54 is so located that, when projected, it is engageable by the right hand side of the cam 58, as viewed in Fig. 3, when the cam 59 is turned, and thereby can shift the sleeve 58 to the left. Similarly the upper end of the sliding pin 51 is engageable, when projected, by the left hand side of the cam 59, and thus can shift the sleeve 58 to the right. The interconnecting link 55 permits only one of these pins to be projected at a time, of course.

On the left end of the shaft II, as viewed in Fig. l, is mounted a hub 63 which is held on vthe shaft against axial movement outwardly and also against rotation on the shaft by the disk 64 and screw 65. On the hub 63, in turn, and free to turn thereon, is carried a Geneva Wheel 86 so positioned that the concave end of one of its teeth 61 will be engaged and locked by the collar 62 of gear 60 when the sleeve 58 is slid to the right on the shaft I, and also so positioned that it may be turned by the single tooth 6I on the gear BIJ successively engaging the slots between its teeth 61 when the sleeve 60 is slid to the left. The hub B3 is held against axial movement inwardly by the disk 88 or the adjacent end wall 69 of the controller housing on which 68 is fastened by the pin 1U. The wall 69 has a plate 1I to cover the Geneva wheel 66. The hub 63 is provided with a sleeve 12 in which is a pin 13 having the head 14, and also a spring 16 positioned between the inner shoulder of the sleeve 12 and the end 15 of the pin 13, and which therefore serves to hold the pin 13 projected into whichever of the series of holes 11 in the Geneva wheel 68 it may be inserted. By this arrangement the hub 63, and thereby the shaft II which carries the change-directing pattern as4 later appears, are locked to, but are angularly adjustablefor timing relative to, the Geneva wheel or .gear 6E.

The controller mechanism includes a plurality yof sprockets 18 each keyed to the shaft II so that it will turn therewith, and held against axial movement at the right, as viewed in Fig. l, by the disk 19 and screws 80 and at the left by the disk 8| and the screws 82. The disks 19 and 8I may engage the end walls 32 and 69. Carried on each sprocket 18 is a change-directing pattern consisting of an endless chain 83 having high links 84 located at intervals appropriate to the changes the particular chain is to bring about, as will be understood. Also included in the controller mechanism is a plurality of feelers in the form of levers 85 (Figs. 2 and '1), each of whichextends over a controller chain 83 on a Sprocket 18 and is provided withv a nose 88 resting on its chain 88, and each of Which'ispivoted on a bar 81 carried on the housing. At the free ends of the feeler levers 85; side panels 9I` ex tending from the ends 32 and'69 of the housing* 5 support a comb bar 92, and inthe s lotsy 93"of" the comb bar 92 are supported bars or-levers 94' which transmit the calls on the feelers to dej vices which exercise the control, not shown. The transmitting bars or levers 84 may beheld to the feelers 85 by springs 95. f An eccentric 96, manually actuatable by the handle 91, serves to when theseA raise the feelers from the patterns 83 patterns are to be changed.

The operation of the controller described isf` as follows: The shaft I, drivencontinuously in a clockwise direction (Fig. 3) by gears 2 fromjj the main shaft, completes one rotation each time n one of the six feeds ofthe circular knitting machine it controls passes some point, say kthe location of the call-transmitting bars 94. With each rotation the tooth 9 on the gear 8 engages` a slot I4 between two teeth I5 on the Geneva wheel I3 and advances this Geneva 'Wheel one step. While the Geneva wheel I3 is being advanced about six steps, the pin 31 on the actu-5' I ator o r lever 3B rides inv a concentric part oi' the groove `I1 in the Geneva wheel I3 so that thisv pin is held away from the shaft II, and accordingly the opposite end of the arm `38 holds i the pin 4I raised in the path of the caniA 1.` As a result the sleeve 6 is held to the leftby this pin, as viewed in Figs. 1 and 3, and the tooth 8 can turn only Geneva Wheel I3.

2I on the Geneva wheel 20 and holds that wheel locked against rotation (see Fig. 9). ,l

At the close of these step-by-step turns of the Geneva wheel I3, that is, while the sixth turn is being completed, the pin 31 enters one of the eccentric portions I8 in the groove I1 and the arm- 38 is turned backward around its pivot 39. Consequently the free end of the arm 38 is depressed and with it the pin 4I is lowered and removed from the path of the cam 1 while at the same time the vertical pin 44 is thrust into the pathof that cam. Thereby when the continued rotation of the sleeve 6 brings the cam 1 against the pin 44, the sleeve 6, and with it the gear 8, are` slid to the right sothat the collar I0 is slid tofl v the right out of its locking engagement with'` the tooth- 2I on the Geneva wheel 20 and thef et 22 is also fastened to the hub I2, this turn of the Geneva wheel 20 also turns the master control sprocket 22 one interval, and with it, of

course, advances the mastercontrol pattern chain 35 carried thereon.

During this time the sliding pin 51 at the opposite end lof the controller has held the sleeve 58 to the right, thereby locking the controller Geneva 66 against movement andtherewith the change-directing patterns on the sprockets 18. Suppposing that the single turn of the sprocket 22 mentioned above does not bring one of the lhigh links 36 on the master control pattern chain 35 under the roller 41, Fig. 2, everything continues as before until a later turn of the sprocket 22 brings a high link under the roller, Figj.

Such an action calls the change-directing patf terns "to advance, 'and wheneverit'occurs the.'

The collar I84 then engages the concave end of one of the teeth reetinss: atterneetth he #tiene the gear 6U is moved intoposition 'toengagewith that .Geneva wheehSO .that e moment later Ge.:

des 'beato cui ete Sels@ ere-.secure ofQthe,.Geneva wheel; 6 alsoturns the l.contri).1h51?-f spr klets ,18 an. interval,...and advances.the,v dir ect ing. patterns. $3. .one step.A Wherf ever .thi'sl'brings.ahiglnlink 8 4 ,on acontroller,

cha

15v likewlseere loekedin restfposmoneet allttimes the. hat` ,63' and.' the ,hun sa... is ser.. ,tojtheshaft IJ, andgthe controllersprockd to theshaft. ll this turna chain Q3 to its feeler .'85, this feeler .is raised by the ..1 in k (or is heldnpdf' already raised)' an d 'withtit the corresponding bar, 9A.. is, actuated1 to,, l

sanjm'ake e change. et rSeme .etmeyamfchaneea oro'therj element .oi the `-knitting machine.

Durirl ,the ntooth .s 4nitriet bpm .G eneya wilgen la amigas;

endntethenext eeneentrie pertionef the groove..

it refises the Sliding pin `4l. .and l,wtlndrtWe. the 1. 'sliding pin 4L) Since the pinv 4I1is 'now in the pathofthecamJ; sleeve 6; sconoA is moved to the 3,85. .baelil aroundi the, pivot left tQQelide tneeearttetnnut offenen 0f the.

Genevawheel; gandrleee. `the cellar l0 again intoengagexnent kwith theconcave end of a tooth 2l o n Geneva 2 lljto again lock that Wheel ag instrotf tion. A s a result, on the eighth and th ext f ew.t1 1`rn s, ,tootl f1. 9 .turns only. theGe-4 nev wheel I .3f. However, Ge neva whee1 20 and therewith `the master. eeifitrller` pattern .35 are y et. rest'- On the other hand.; if there.

ing. ereedvaneed Ysi'xftirnes. .during the periodv sothat eeaaih ter' contro rnecl 1 a nis1r i, theA master.. control pattionsbetween these gears cause this `pattern to ed innositpndunna .this leighth andA the.

yB1 and ftheir changedirecting patterns noedrelatiyelyslowly. and accord,- ing1'y"'may be rather short. Further, .the .re1a

turnaend. .neehangeismade in themthe slidingpins 5 4 and` 51T during thisA If lthereis af low linl; of the insister- 4 `tter.r\... f5..bekamthe follower .41, the` i f1 nk'of enamegjoemw fouower 41 due f peried. l.the cheneerdirectine patterns B3 changes ,canbe made or omittedgat each feedinf 55:

."becausefof'theuse ofa succession of W0 Grenet/a.movements)` at the mns; f

advan ,e in ,a time relation to complete, cycles lciw theofdued machine namely. in ,the present instancefgdvance once for each conxplete cycle. Aire acll v advance this control pattern either di-' rects the changedirecting patterns remain et reet'tlurine the nextjeomplete-eyc1e-.o tnerne-r A chine it entrls, er.. @drente dunne .that @vele so thatfas manyV o i the operationscomposing .the

. from -`.each other by deliberate manipnlation 'theedjnstment devices Maand 15, the Genevas ..eersiirgeelitesy Dette ..1 and ineeeerdeneeiwi by .theI.nienmiiltttierl .ef .the adjustment. permi; 'tinel-fsievees. 34 and. 75,...S,o..thatthe controlle met zPrQPellY adiretdt is.: Substantially .Pf-0 against -eidentaLnStimine-c,i Thuszit .willtbe ennerent that except as. parts-f may .be "unleeked l3and. ,20 fare locked'at restatall times except while. beinatnrnedf. by f the, Single toothy t geen 21141 therewith .the .masten contre! pattern-.35 is locked et reet, endj the .change-directing, patterne.

eXeeptwhenbengadvanced by-thetsineletoothr l' gear. and even while being advancedvallthese parte. areloekedmp .the prmarvzdrtvine theft... f directlyr or. indiretly.

It will be understood. of` coursethatminve tionisnotlimitled -to the detailspf construction and operation illustrated in the ,drawingyand,A -f describedsabove except as appears, hereaftenin the claims. It is to be nnders'tod also that 1 do notintend the claims to be limited Whollytoy the particular elements specifically mentioned -in them, buttoj includeequivalents o f. thosetelexnents t as WclL j I claim: [1.l In a controller, at least onechangedirecte ing patterma master. control-mechanism having.-

a patternto directtheadvances-of s adchange,

directing pattern,A a' powcrdevice vto advancel said;V j. master` control pattern and said change-directingl pattern. constantly. ntermeshedtoothed gearing;

between said power devioeandsaid maste r con .fA trol pattern thrmgh` which ythe .latter` Vis drivexn..v fromv thee former; and constantly intermeshed,.VA

toothedgearin'g betweensaid power device.. and.` said. .change-directing natternthreueliwheh the. changedirecting pattern is,v driven byfthepower device] [2. Ina controller, at least @echange-.directa t ing pattern, a master` controlmechanism having directing pattern, a shafttobe vdriven ina. fXed j timerelationt with the appnratussiibject to the', controller, a Geneva type of movement between said master control pattern, andv saidgshz 1 f t .v

through which the master `control pattern ad; vanced and is locked in position during the intervalsbetween advances Aby lsaid shaft, anc .co n A stantly ntermeshed toothed .gearing between saidj shaft andsaid changedirecting pattern through ,..zj

which the 4 change-directing pattern is advanced` when called` by the master control pattern] [3. In acontroller, at least one changedirect. A ingI pattern, a. mastercontrol mechanism l'iavingY a pattcrnto direct theadvances of saidchange:

directingpattern, a shaft to be driven in a fixed time relation with thegapparatus subject yto the controller, a, Geneva type of movement between said, master control patternY and saidfshaft-x;

throughjvhich the master control patternfis advancedand is locked in position during the intervals betvveenadvances by s aidjshait, aGeneva type movement `between saidehaneefdireetne..

control patternjthroughwhich the master ,control Pattern atte-tesmeetic-Geneva movement-,f .te @L cause the change-directing pattern to advance] [4. The subject matter of claim 2, characterized by the fact that at least two Geneva type movements are interposed between said master control pattern and said shaft, one being coupled to the movement ahead of it for actuation thereby so as to advance at intervals, and the last being coupled to said master control pattern to advance the latten] 5. In a controller, at least one change-directing pattern, a master control pattern to direct the advance of said change-directing pattern, a shaft to be driven in a fixed time relation with the apparatus subject to the controller, a Geneva type of movement driven by said shaft, a second Geneva type of movement the driven member of which is attached to said master control pattern and the driving member of which includes a sleeve rotatable by but slidable on said shaft between locking and driving position, and an actuator controlled by the first mentioned Geneva movement to slide said sleeve along the shaft.

6. In a controller, at least one change-directing pattern, a master control mechanism having a pattern to direct the advance of said changedirecting pattern, a shaft to be driven in a fired time relation with the apparatus subject to the controller to advance said master control pattern and said change-directing pattern, constantly intermeshed toothed gearing between said master control pattern and said shaft through which said master control pattern is driven, and constantly intermeshed toothed gearing, at least one element of which is slidable on said shaft, through which said change-directing pattern is driven by said shaft.

7. The subject matter of claim 6, characterized by the fact that the constantly intermeshed gearing between said master control pattern and said shaft, is a Geneva type gear.

8. The subject matter of claim 7, characterized by the fact that the element which is slidable on said shaft is a sleeve which is slidable to and from positions where, alternately, it advances a change-directing pattern and locks said pattern in position, and an actuator is provided, controlled by said master control pattern, to control such sliding of the sleeve.

9. The subject matter of claim 8, characterized by the fact that the gearing through which the change-directing pattern is driven is a Geneva time movement.

10. The subject matter of claim 6, characterized by the fact that the constantly intermeshed gearing through which the change-directing pattern is driven, is a Geneva type gear, the toothed gear which drives the Geneva wheel thereof is the element which is slidably mounted on said shaft, and an actuator, controlled by the master pattern, is provided to control the position of the toothed gear along the shaft.

11. In a controller, at least one change-directing pattern, a master-control mechanism having a pattern to direct the advances of said changedirecting pattern, a shaft to be driven in a fixed time relation with the apparatus subject to the controller, at least two Geneva type movements interposed between said master control pattern and said shaft through which the master control pattern is advanced and locked in position during intervals between advances by said shaft, one of said Geneva type movements being coupled to the movement ahead of it for actuation thereby so as to advance at intervals, and the last being coupled to said master control pattern to advance the latter, and constantly intermeshed toothed gearing between said shaft and said changedirecting pattern through which the changedirecting pattern is advanced when called by the master control pattern. f

12. The subject matter of claim 11, characterized by the fact that at least one element of said toothed gearing includes a sleeve rotatable by but slidable on said shaft through which said change-directing pattern is driven by said shaft.

13. The subject matter of claim 12, characterized by the fact that said toothed gearing is a Geneva type movement, and an actuator is provided controlled by the mastey control pattern to slide said sleeve of the Geneva type movement.

CHARLES F. MILLER.

REFERENCES CITED The following references are of record in the file of this patent or the original patent: