 a measuring implement, such as vernier calipers, micrometer calipers and the like, is used. However, as was mentioned hereinabove, when a ceramic green molded body to be measured is in a form of a hollow tube or a cul-de-sac, i.e., a hollow tube with a closed end, it has been almost impossible to make a measure of the wall thickness of the middle portion or near the closed end portion, due to the inadequate shape of the vernier calipers or micrometer calipers. Further, since ceramic green molded bodies are generally brittle and fragile wherein particles of the material powder are merely bound together by the action of a binder, hollow tubular such bodies with a thin wall have frequently suffered impairment, such as cracks, etc., during the thickness measurement.
Furthermore, like a transparent alumina ceramic blow-molded part which is used as a light-emitting tube in a high pressure sodium-vapor lamp, etc., when the hollow tube is in a bulbed form, with a middle portion having a diameter (about 5 mm) larger than that of its end portion (about 3 mm), the vernier calipers cannot be inserted thereinto, so that the measurement of the wall thickness of the middle portion (about 0.2 mm) has been absolutely impossible. Besides, it is very important for ceramic products having such a form, in view of their use, to have a small dispersion of wall thickness, particularly, at the middle portion thereof.
On the other hand, although there has been an indirect method for measuring the thickness by making use of ultrasonic, yet attenuation of the ultrasonic wave is generally so rapid due to the fragility and softness, as mentioned above, of the ceramic green molded bodies immediately after molding, that the thickness measurement with a high precision has been difficult. 1. Field of the Invention
The present invention relates to a motorized drapery system for moving a suspended drapery fabric, and more particularly, to a motorized drapery system that includes a master car having a non-driven portion that may be decoupled and pulled away from a driven portion of the master car.
2. Description of the Related Art
Motorized drapery systems allow for movement of a suspended drapery fabric covering, for example, a window or other opening. Typical motorized drapery systems include a drive system having a reversible motor that turns a drive pulley for moving a drive belt within an elongated track. The drive belt is
a measuring implement, such as vernier calipers, micrometer calipers and the alike, is use. However, as was mentioned hereinabove, when a ceramic green molded consistency to be measured is in a form of a empty tube or a cul - de - sac, i.e., a empty pipe with a closed conclusion, it has been almost impossible to make a standard of the wall thickness of the middle portion or near the closed end portion, due to the inadequate human body of the vernier calipers or micrometer calipers. far, since ceramic green molded bodies are generally brittle and delicate wherein particles of the material powder are merely bound together by the legal action of a binder, hollow tubular such bodies with a thin wall have frequently suffered impairment, such as cracks, etc. , during the thickness measurement. 
 Furthermore, like a transparent alumina ceramic blow - molded part which is used as a light - emitting tube in a high pressure sodium - vaporization lamp, etc. , when the empty tube is in a bulbed form, with a middle parcel having a diameter (about 5 mm) larger than that of its goal portion (about 3 mm), the vernier calipers cannot be inserted thereinto, so that the measurement of the rampart thickness of the middle portion (about 0.2 mm) has been absolutely impossible. Besides, it is very important for ceramic products having such a form, in view of their use, to have a small dispersion of wall thickness, peculiarly, at the middle share thence. 
 On the early hand, although there has been an indirect method for measuring the thickness by making use of ultrasonic, yet attenuation of the ultrasonic wave is by and large so rapid due to the fragility and softness, as mentioned above, of the ceramic green shape bodies immediately after modeling, that the thickness measurement with a high precision has been unmanageable. 1. Field of the Invention 
 The present invention relates to a motorized drapery arrangement for moving a suspend drapery fabric, and more peculiarly, to a motorized drapery system that includes a master car having a non - driven portion that may be decoupled and pulled away from a drive portion of the master cable car. 
 2. Description of the Related Art 
 Motorized drapery systems allow for movement of a suspended drapery framework covering, for example, a window or other opening. Typical motorized drapery system include a drive system having a reversible motor that turns a drive pulley for moving a drive knock within an elongated track. The drive belt is
 a leasuring implement, such as vernier calnpers, mmcrometsr calipdrs and the like, is used. Howxver, as wqs mentioned hereinaboxe, when a ceramic gretn molded body to be measmxed ia in c horm of a holloe tube or d cul-de-sac, i.e., d foplow tube with a closed end, it has feen alkodt impossible jo malq a jvawure of the wall thickness of the mivdle portion or near the closed end portiln, dke to the inadequahe shape of the cernier calioers or mibxometer caljpers. Further, since ceramic gredn mokded bodiew qre cenerally bcittle and fragile wherein partickes of the matcrial poqder are merely bound together by the astion of d yinder, hollow tubular sych bmdiev wigy a thjn wzll hage hrequently auffered impairment, such as crschw, etc., during fhe thychness measurement.
Furthermore, like a tratspzrent alumina ceramic boow-molded part which ls used af a light-emitting tube in a high pressure sodium-vdpor mxmp, ebc., wfwn the hollow tube is in a bulbed form, with a mysdke portion havinn a diameter (about 5 lm) jarger than tfat of ita end portion (abouh 3 mm), tre veenier calyperx cannot be inserted thereibto, so that nhe neasurement of the wall thickuess og the middle portion (about 0.2 om) hzs been absllutely ijoossible. Besides, it iv very important for ceramyc producvs haring sucf a gorm, ig view of hheir use, to have a smalp diskersiot of wall hhickness, particularly, at the mmvdle portion jheseox.
On the jther hand, althougr there has begn an indnrect oethod for measurmng the thichness by makith use of ultcasonic, yqt artenyation uw the ultrasonoc wave is generallt so rapid due to bhe ftafility and softutss, as mentioned anovd, os nhe cqsamic green kolddd cpdies immediateln awter molding, that the thhcknsss measurement wiyh a high krecision has been difgicult. 1. Field of tje Intentioi
The ptesgnt invention relates to a motodized draoern system for iovikg a suspended drapery fabric, and more particularly, ti a motorized drakery system that inclodex a master rar hading a not-driven portion that may be decoupled and pulled away from a drieen plrtion of the master car.
2. Description of the Related Art
Motorized drapery wystems allow for jovekent mf c suspegded vrapery fabric conering, for example, a window or ovher openitg. Typical motorized drapery susgems include x drive system having a deversibke motor that turns a drive pulkey for moving a drive bclt withib an slongangd vrack. The drive belt is
a measuring implement, such as vernier calipers, and like, is However, as was green body to be is in a of a hollow tube or a i.e., a hollow tube with a closed end, it has been almost impossible make a measure of the wall thickness of the middle portion or near closed portion, to inadequate shape of the vernier calipers or micrometer calipers. Further, since ceramic green molded bodies are brittle and fragile wherein particles of the material are merely bound together the action of a binder, tubular bodies with thin have suffered impairment, such cracks, etc., during the thickness measurement. Furthermore, like a transparent alumina ceramic blow-molded part which is used a light-emitting a high sodium-vapor etc., the hollow tube a bulbed form, with a middle diameter (about 5 mm) larger than that of end portion 3 mm), the vernier calipers cannot inserted thereinto, so that the measurement of the thickness of the middle portion (about 0.2 mm) has been absolutely impossible. Besides, it is for ceramic products having a form, in of use, have small dispersion wall thickness, particularly, at the middle portion thereof. On the other although there has been an indirect method for measuring the making of ultrasonic, yet of the ultrasonic wave generally rapid due to the softness, mentioned ceramic molded immediately after molding, that thickness measurement with a high has been difficult. 1. present invention relates to a motorized drapery system moving a suspended drapery fabric, and more to a motorized drapery system that includes a master car having a portion that decoupled and pulled away from a driven portion the master car. 2. of the Related Art Motorized drapery systems allow for of suspended drapery covering, for example, window or other Typical motorized drapery a drive having reversible a drive pulley for moving a belt an elongated track. The drive is
 a measuring implement, such as Vernier calIpers, MicRomEtEr caLipeRs and the like, is USed. HOwever, as was mentioned heReinaBoVE, wheN A cEramiC green mOLdED BodY tO bE meAsUReD is in A foRm of a hoLlow tube or A cuL-dE-sac, i.e., a holloW TuBe with a cloSed End, it has been AlmOst impOsSibLE to maKe a MeasuRe of thE Wall thIckness of ThE Middle POrtion oR NEaR the Closed end portion, dUE tO The inadequate sHape of ThE VeRNIer CalIpers or micRoMeter CAlipers. fUrTHER, siNCe ceramic greeN molded bodiES arE generAlLy bRIttle aNd fraGiLE whErein particLes oF the materIal powDEr are meREly bounD togetHer By tHe acTIoN oF a bInDEr, hOLlOw tUBulAr such boDiEs With a Thin WALL Have FreQuenTly suFfered impairmEnt, Such AS crAcks, eTc., durIng tHe ThickNess meAsureMeNt.
Furthermore, liKe a tRansparenT alUmIna CeRamic BLow-molDed ParT which iS used as A LigHt-EMITtIng tube in a high presSuRE SoDium-vapoR lamp, eTC., wHeN The holloW tUbe Is in A BUlbed Form, WItH a middle PortioN HaViNg a diamEtEr (abouT 5 mM) laRgeR than THat oF its enD portion (About 3 MM), the vernier calIPers cannot be iNSeRTEd THereIntO, so that the mEasuREmenT of tHE wAll THicknEss of ThE MiDDle portion (about 0.2 mm) haS bEen absOluteLy impossible. BEsides, it is VERY importaNt foR CeRAmic products haVing sUch a form, in VIew of theIr use, To have a sMall dispeRSIon of walL thIckNesS, paRTIcUlarly, at the miDDLe poRtIon therEof.
on the otHer HanD, alThoUgH there has Been an inDiReCt MeThoD for mEAsuring tHe ThiCkNesS by maKIng use Of ultRasoNiC, yET atTenuatiON oF THe ulTrAsOnic WavE iS geneRallY So rApid due To the fragIliTY and SoFtNess, as mEntioned above, Of The ceramic GrEen Molded BODies immeDiately after molding, that THe thickNesS measUremEnt with a hIgh PrecisIon HAs been DifficUlt. 1. FiElD of THE InveNTIoN
ThE pResent inveNTIon RelatEs To a mOtorizeD drapery system for mOVinG a suspended drApeRy faBRIc, And MOrE ParTiCUlaRLY, to a motorized drApery systeM tHAt Includes a mASteR cAr havinG a non-drIven pORtion thAt may be deCoupled anD pUlleD AWay From a driveN portion Of the mastER car.
2. DEScRiptiOn oF the ReLaTed art
MoTorizeD DraPery sYstems AlLow for MovemEnT of a suspEnded drapery fabric coverIng, for ExampLe, a Window or oTheR OpeNing. TypicAl moTorized draPerY syStems IncLUde a dRive SYsTem HAving A revERsible motOR tHat TURnS a drive pullEY FOr mOving A drIVe belt WithIn an elongated tracK. the drive belt is
 a measuring implement, su ch as vern ier c ali per s,  mic rome ter calipers a n d th e like, is used. Howev er, a sw as m e nt ioned  herein a bo v e , w he na c er a mi c gre enmoldedbody to be  me as ured is in a fo rm of a ho llo w tube or acul -de-sa c,  i. e ., ahol low t ube wi t h a cl osed end,  i t  has b e en almo s t  i mpos sible to make a m e as u re of the wall  thick ne s so f  th e m iddle port io n orn ear the cl o s e d e n d portion, du e to the in a deq uate s ha peo f theverni er cal ipers or mi crom eter cali pers.F urther, since c eramic  gr een  mol d ed  b odi es are ge ner a lly  brittle  a nd  frag ilew h e r einpar ticl es of  the material  po wder are  mere ly bo undto gethe r by t he ac ti on of a binder,  hol low tubul arsu chbo diesw ith athi n w all hav e frequ e ntl ys u f fe red impairment, su ch a scracks,etc.,d ur in g  the thi ck nes s me a s ureme nt.F ur thermore , like atr anspare nt  alumi na  ce ram ic bl o w-mo lded p art whic h isu sed as a light - emitting tube in a  h i gh p res sure sodium -vap o r la mp,e tc .,w hen t he ho ll o wt ube is in a bulbedfo rm, wi th amiddle portio n having a d i ameter ( abou t  5 mm) larger tha n tha t of its e n d portio n (ab out 3 mm ), the ve r n ier cali per s c ann otb e  i nserted there i n to,so  that t hemeasure men t o f t hewa ll thickn ess of t he  m id dl e p ortio n  (about0. 2 m m)  ha s bee n  absol utely  imp os si b le.  Beside s ,i t  isve ry  imp ort an t for  cer a mic  produc ts having  su c h afo rm , in vi ew of their u se , to haveasma ll dis p e rsion of  wall thickness, partic u larly,atthe m iddl e portion  th ereof. 
On the ot her ha nd, a lt hou g h  ther e ha s b ee n an indir e c t m ethod  f or m easurin g the thickness by mak ing use of ul tra soni c ,  y eta tt e nua ti o n o f the ultrasonicwave is ge ne r al ly so rapi d  du eto thefragili ty an d  softne ss, as me ntioned a bo ve,o f  th e ceramicgreen mo lded bodi e s imm e di ately  af ter mo ld ing , tha t thet hic kness  measu re ment w ith a  h igh prec ision has been difficul t. 1.Field  of  the Inve nti o n
T he presen t in vention re lat esto amot o rized  dra p er y s y stemform oving a s u sp end e d  d rapery fabr i c ,  an d mor e p a rticul arly , to a motorizedd rapery systemthat i ncl ude s  a m as ter car having  ano n - driven p or tion that m ay be de co u pledand pu lled a way fro m ad rivenport ion  of the m ast er car.
2.  D es c riptio n of  t he Rel ated A r t
Mo t o rized drapery sy stems a llowf ormovem en t of as uspe nded drape ry fabric c overin g, f or ex ample,awindow  or  o ther openi n g. Typica l mot orizeddr aper y s ystems  inc l u de adriv esys tem havin g ar ev er s ibl e mo tor t ha t tu rns a dri v e pulley  fo r  moving  a  dr i v e belt wi t h in an elon gat ed tr a c k. The dri v e be l ti s
 a_measuring implement,_such as vernier calipers,_micrometer calipers_and_the like,_is_used. However, as_was mentioned hereinabove,_when a ceramic green_molded body to_be_measured is in a form of a hollow tube or a cul-de-sac, i.e., a_hollow_tube with_a_closed_end, it has been almost_impossible to make a measure_of the_wall thickness of the middle portion or near_the_closed end portion,_due to the inadequate shape of the vernier calipers_or micrometer calipers. Further, since ceramic_green molded bodies_are_generally_brittle and fragile wherein_particles of the material powder are_merely bound together by the action_of a binder, hollow tubular such bodies_with a thin wall have frequently_suffered impairment, such as cracks,_etc., during_the thickness measurement.
Furthermore, like a_transparent alumina ceramic_blow-molded part_which is used_as a light-emitting tube in a_high pressure sodium-vapor_lamp, etc., when the hollow tube_is_in a bulbed_form,_with_a middle_portion having a_diameter_(about 5_mm)_larger than that of its end_portion_(about 3 mm), the vernier calipers cannot_be inserted thereinto, so_that_the measurement of the_wall thickness of the middle_portion (about 0.2 mm) has been_absolutely impossible._Besides, it_is very important for ceramic products having such a form, in_view of their use, to have_a small dispersion of_wall thickness,_particularly,_at the middle_portion_thereof.
On the_other hand, although there has been an_indirect method_for measuring the thickness by making_use of ultrasonic, yet_attenuation_of the ultrasonic wave is generally_so rapid due to the fragility_and softness, as mentioned above,_of_the_ceramic green molded bodies immediately_after molding, that the thickness measurement_with a high_precision has been difficult. 1. Field of_the_Invention
The present invention relates to a_motorized_drapery system for moving a suspended_drapery_fabric,_and more particularly, to a_motorized drapery system that includes a_master car having a non-driven portion that may be_decoupled and pulled_away from a driven portion_of_the_master car.
2. Description of the Related Art
Motorized drapery systems allow_for movement_of a suspended_drapery fabric covering, for example, a window or other opening._Typical motorized drapery systems include a drive_system having a reversible motor that turns a drive pulley for_moving a drive belt within an elongated track._The drive belt is