BE689533A - - Google Patents

Description

       

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  "Flexible, resistant and insulating piping
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 and SOi'1 fabrication prooddd "
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 The present intention is to report a large number of flexible piping, and in particular flexible piping exhibiting unusually high unit resistance, of:! cretkn ..t.; uars,; '1oo1ement soundg cured: S, sides:' l1otf, riDtiquGD of fluxion, or trefoil curvature improved ot a plus ,, rH.uctG maniahilitn
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 for their implementation.
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  In view of the current construction of industrial buildings and dwellings, more interest is also given to new aterials or new products, which can only improve the yields of the <; fiJtôiiez iRt4llt '= N

 <Desc / Clms Page number 2>

 
 EMI2.1
 and to lower the labor costs involved in their installation. This is pa1: 'ticuliprHI4f: mt true in what cone' rne refinements :; de, = air conditioning systems {: ion ot / or heating, '' -ue the installations are rieuvo, 'or' lu 1 cJ lt "floiont siir structures already <:.; Li; t.; uit <; . ,, L> piping 00111) the used in such oyotemec must be capable of tr11Jl.11JOr {:; (the air at the pressures used for large distances and which are of ha-
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 bitude limited by the building premises.
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  This is how the outer wall, "of a pipe must be non-porous, its interior must resist corrosion, the pipe must have a good resistance to li, axial traction and raiatar Ilcrf, 4setaent by applied forces di, the exterior either; by forces (.1 'éOl'n.ee- ;; ent either by, forcing them which are applied
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 cost..; the times the piping is flexed on
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 potits rays which tends to flatten v = rs the inside
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 the. piping.



  As the use of such piping
 EMI2.7
 flexible this would have increased, the exitrict-3 concerning the standards of isolation were made. In order to present the characteristics of 1301; 1> ent ani <fliorôea clernanddes, the thickness of the walls of the flexible pipes has been considerably increased. This increase in wall thickness has reduced the possibility of flexing the walls. the piping or pipe has small radii because the surface not finding - the inside of the curved section tends to flatten and penetrate the interior of the pipe.

   This limits the pa3sa- ,, offered by driving, restricts its c1'.l, pncitl do trrülGpor't & t therefore

 <Desc / Clms Page number 3>

 
 EMI3.1
 reduces the number of places where the flexible piping can be fixed or else reduced If rciidef "lpllt of 0, -t: tt piping when it is jadae in place with small radii. It follows that two up0ciri.cftionn have been '! dictated to indicate radii r.:3zü;.4.s for which the flexible pipes; euvvnt éi, r> J l.rt.l, li! 30eH. For example, flexible pipes of 30 cc could not be used in the past only on a minimum radius of about 6 bolts.

   This greatly reduces the benefits that may otherwise be gained from the use of flexible hoses.
 EMI3.2
 Another serious drawback of: 1 pipes which
 EMI3.3
 are currently used in the end as the spring wire which serves to form the framework> 1e 1; The adult gfj was always under tension as a result of the way of pulling it from a roll and winding it around a mandrel. t'dz.r; 4. If the razuort wire so broke at any point or became damaged, it would occur brown .. only an overhang of the wire and the section I-tai 1; , 1 + tr.> It.



  From IOrne,: .31 we wanted to cut the flexible tubing into shorter sections to use it aVfJú <1 <, J l1uii:! OlW plus rcipprQeh4ax, la 4; Jcoupi; du 1'11 1 <rtl * orliié, 1'atL1 ', Esi ;.' again by an entanglement and by d <31, gl'l'llClol1 d11'1'J, ciiltùu to Mount the \ .1'OhÇ: ona cutouts.



  In principle, the aim of the so-called invention is
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 provide ;
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 - uno ionno nouvelle do acrstï7x Ln or piping
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 isolated,
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 - which is axtrÔmCI1H: flexible mt which rF'r.t3.: atc: Cupen41mt jxtreniement well h i '.. ati; z;: srrlt ci1 de,.! forces ya.din.le3 F '.;. qu of. 1 '/ itéri;. On 0'1 h uno flexion.

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 - in which the wire frame is preformed
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 and [1.t :) thus found in \ il), 6tù.t where it does not undergo any strain after having constructed the piping, which allows the flexible piping to be cut into shorter sections without the framework becoming tangled ;

     - in which the relationships between the wall thickness of the pipe, the spacing of the wire in the he-
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 stringer or support frame, the compressibility of the wall insulation, and the gauge of the wire used to form the helix or frame - are such that the piping can bend or bend over a small radius without s flatten inward;
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 - who can Ôtru retpîd, lies inexpensively and who is destined? 1 Ctro rribriquio at a low price;

   - comprising uno; t: unitary ructur6 resistant but nevertheless torque; - flexible piping with characteristics
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 ristiqltQS d tàiùorti #; "er, iii't uu son cOll.Gi! .H1" il.bleInent improved '' H3 smis porto do la r '' '3istancc' mitairc do 1.t structure n6ceozaïr, for a 1; r : mà rlO; bX '(of installations.



  We discovered that .. have 111,14 "strings or framework on wire roàJ, vi> t on pr ''" 't "or !!: f 1-, wire l'uc1.u Hard the MfU1drin 1' <' 1,;% t relaxed relative 1., 1; ';' Jciinc forces nE: tnd move him to confiipiratL <> ng>: '11' \ pr1 ;; " jJ ", ncinnt the operation do misu jn iori <; <3, the i,> 'i, i, e <j, -out dtto pr4fox m6e in pheasant% pm: 1IJ :: 1' the thread to rIJ. .1éirl ir.iJcrx .ino spine which redX'I) ":; (:; \ from 1; 1 hot'jnc .1 'ormwj', tfJinH ;;; tJ (n; on him: f: Ü11 ' .nt tr'.J.vQ.1'ncl '<;> .. ix; 1+ :;;. <i, ei, <ii> 1; ii> i <i ,; c1ntr <; d (, such so that the wire Junte, -iv, trit; i'4tiÎà ùîlrnoàl6 a'Jr le! a? tndrin ent curved along a \ 3 c <; ri> i <1; q'ii c <Jri, <=; 3pvnd upproximativtzmont i the circumference '' 'ojf) C' .i, i tf.fmdrirt <; t therefore 1. '. 1).

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 inside diameter of the piping being constructed.

   As a result, the pipe flexes more easily and any breakage or loosening of the wire does not have the destructive effects which in many cases render the pipe unusable. In addition, the helix turns tend to maintain regular spacing, even when the pipe is flexed. We. further discovered that the flexible pipe is constructed using a spring wire to form the support frame or helix, the diameter and spacing in the helix of which are appropriately chosen with respect to the diameter of the pipe and to the thickness of the wall insulation, a pipe can be constructed which has the possibility of being bent over a small radius.

   By appropriately choosing the spacing of the wires in the helix relative to the thickness of the wall, the outer and insulating layers deform between the turns of the helix of wire so that the conduit no has a very reduced tendency to flatten. The wire gauge is chosen in order to provide each spiro with a resistance that is greater than the force required to deform the insulating wall.

   As a result, the pipe of the present invention has an increased ability to flex or bend around certain curves without flattening, while maintaining a very advantageous overall stiffness. In addition, this construction allows for the packaging to axially compress the pipe like "a trolley in a box", which allows significant savings in packaging, storage and freight. When the pipe is taken out of the packaging where the work is to be

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 to be carried out, it can be lengthened to restore its initial length without losing its advantageous characteristics.



   To obtain the above indicated, flexible piping comprising a helical coil is used.
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 coïdal wire, 61 (-mtin ^ L; 3 d links attached to each end of the helical coil a,; flexible cover disposed over the coil, and means for fixing the flexible cover to the coil. flexible cover may be by a sheet of insulating material and by
 EMI6.2
 a vapor-controlled barrier foil covered 1 .; outer surface of the insulating sheet.

   By attaching the bonding joint to each end of the helical coil, and making it adhere, for example with an eletomeric adhesive, to the wicking of the insulating material on the coil, a united structure is obtained. We can then use 1is.>: r mechanical means to fix the elements of the link ... coi, as, joints which are made with means such as deo vil à métal, <! 1tc, for 11 : 6urer a resistor which troubleshoots loo lini: H) lH.1 by br.mdc or on! 'Oul, jmnt habituol which cont carried out COU'f \ !! 1!, Slow 1or,;: qu 1 we ruun a flexible piping to a pipe.

   For- aU ± 5mûnt.,; X 'still the possibili- ties of using the piping which has just been described, the torque cover can be extended beyond the wire bead in order to completely cover the outer surface of the pipe. '' one of the connecting elements and in order to
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 partially covering the outer surface of the other connecting element and forming therewith a combination of female and male connecting elements, respectively.

   The
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 insulation material is J} rc1Uronc: ('onsti tU0e by a fiberglass insulation on which the elastomeric adhesive, or any

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 other adhesive can be sprayed in sufficient quantity
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 to fix the sheet to the helical coil assembly and
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 form an inner layer lisao for the piping, blocking the fibers deb, ch6úù cn j.> lnce on sheet
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 insulators.
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  When making the couple pipe described so far it is advisable to use a blanket made from a first inner layer of woven material, one layer of the ground material, which is placed over it, the material tiee'ec ut by-daonus the outer layer of- mltièrc forming a barrier for the vapors the woven material fulfills two additional functions because it was; 3! (cntv It1. rél3isto.noú de ln hose-% = flexible line in 1;) 'rÍf! Qntf'1 "nt a good Hurface to end adhering to the helical coil! of 1.1 and that moreover, it #.). {Jnto Iti r; lviztmnci i 1 "'traction nxi'1J.1.: J tla la tiayrttttorîo couple, in particular loraquu the stuffed F it tiuat.1.J' '. back view iilo p: r6;' 1ontnnt uno rll3iat" mc, ôlov6u a ln, 1:

  r.> atiori, Din 1'1.1n Ln fibers du 'v <, rJu convioxmrmt prL.1i'fd tuwcn dfmfi had goal because they pr6wsI11iOnt don r0:; iotu.nOIIH l \ 11.! tr - ,. cticii very high, that they do not corrode pfitït that they na, 0 rouil ... lqnt 9rw ni po d, 1t.i.rioront nutl'ow.mt dr.n- lcji3 conr.1itionr cmivnnt loaqucrlll3f3 they {! O} 1't utUil'J '<n, jt they are understood, ti blol1: IV' .'0 type p: r6.t'6: rf. <irJ! \ 'Hô rI; i..l) lll1'1 t <J ÙQ: iui c que 1't "tQeto tÜWl10 t 1. '. eciiiillu d'j rn: 1Uf.r" ,; i [joll1ntc pf., ttvont; <. <lh6rar 1'une h 1 '; <utr <; -tvc (. tîcf; binders that we use! 'hn.bit1.tdo for i'nbriqu'r dan iJ: ttis 1.svl mlév dn fibrun do' vc.rr <.



  In addition <1., io c'tr tctriutiquo! a 1> uii 141: iont.iirox d
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 qu) we get p: - # the use of an ÜtO! 'fl1

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 EMI8.1
 thick inner layer of the soft cover, it is
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 possible to use less adhesive to
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 adhere the helical bead to the inner layer as the utoft'e provides a smooth inner film for the piping in and through it.

   In addition, the use of a lesser amount of adhesive allows the openings of the display to have; remain open ;;, which p..rmot to transmit the sound to the isolation layer 3: d 'o.mart3.sNOmēmt sound from inside the tv.Y3.ut: J1 ", \ .. so as to reduce
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 considerably the operating noises which are
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 normally transmitted the length of those pipes or conduits to the rooms where the air <; 3t aiiàn6.

   Of course, t; 1uiv: J.nt .'3.uor ..lnt.on it can be: lV "ntrgüux to realize a complete recvtternant d .: the stuffed for p; rticu.i, hxc ,, :;, par.;: em7lc to prûc-jnter a film in% 6rivui'v lisso tout <; 5 lCG 1'oilJ where the speeds of 7. '' ir used are raised or bieu to form a barribrû almost no porous for 11 ,; v.Çt7,: nr; z there .'incerioux as well. as outside r.1 .: the piping.



  The lJr6; 'Jcnta învontirin <,; t char.' otl'iris60 of ttius by wlc conduit: E3oull, Jont la coi, il> j.nnii on u3% constituted by a continuous wire forming um. Yr = ''. Li.ao comprising back spirzio CL1T'ICI '! Tt, j a wall "cl': (, 1 V".,: Lunt 1: prd.t :: "!; do Tl.f., X '' ,: 1t301antw 1J \ 'ltVtnt tJ.' .. compressed which '.Lt.our.' 'The helioe of wire, vt, lu oioyent- .1c'rl1J.t1t.;, 1:. <Iii <t..nir cL9p.ct'oct los U11i30 of others t1pir; D of you. L "} {)} YJ.cl; the first. between 131'irc13 .d J'LCt; nta.3 uat C0f..pria J'.n :: uns r ': cit 1 :: do 3/4 to a 1'0i ;; and (ljinio l 'I6pni.:w,.)u l' 11 :; 1. wall .i ,; ; ".. <, ;; we allow 11 wall ci (,: .0 116 i'or ..:. ùr entc luN GI'iron 1. 0 rt.i of a bending uur a small w; ytr, oeii: 3 '-: latir vr "inside.

   We

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 chooses the wire gauge, so that it is sufficient to ensure radial resistance at each turn
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 which is greater than.the force required., 3si, -îru, to compress the insulating wall and the. distort when flexed
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 on a small radius, The spacing of the worst s can be maintained by adhering the helix wire to the wall, The turns can be kept further apart by using a wire helix which is preformed along the length of the wall.
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 desired bure and according to the spacing of the desired turns, which allows the propeller to fit inside the wall without leakage caught bending the pipe.
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 Lia prel3ent .;

   The invention further relates to a method of manufacturing a flexible pipe which consists of preforming a wire to give it the shape of a helix by bending the wire following a curvature corresponding to the desired internal diameter of the pipe while leaving the es -
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 pacoment wanted enteo los apiros auccoooivoc of the helicopter, and by surrounding 1 '116110 \: 1 nvqo an inolent pnrol 4a mritiéru which can be compressed, of which 1'6p, -Iistluiir unt included in a range of 2/3 to 1 times a 1IkeiÍ'ao la di.lt! U10a a6ps.rf.U1.t the successive turns of helioo.

   The roo6d4 of the present invention consists of <b, inleraont 5 choosing for the helix a diameter of wire which I:) u: t'f: l.'b 1,: l / JClUr "; r tL each turn has a resistance radial that is greater than 1 '\: force required to compress the wall when the wall is flexed a small radius. To help guide the wall as it deforms, the inside of the wall is
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 wall can be lined with fabric. The stndú COllsist'U1t to line the interior. Of the wall with a fabric can

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 EMI10.1
 include the operations whereby removing fibers 1 ;; u1 mten and a. binder on etol 1'0 ot to cure the binder to obtain a ntittil- icolru1.t; ,, stuck to the fabric.



  DI '1.utrca nvmitades and characteristics of the present invention will emerge during the dexoription dexoription which V'1 follow the n.1 te with regard to the appended drawings which give ti tr: explanatory but in no way limiting several forms: ) according to the invention.



   On these drawings:
Figure 1 shows a first stage in the manufacture of flexible piping according to the present invention; Figure 2 shows an embodiment
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 pre;, '.' r6 of the pre-invention, when completed Figure 5 is a perspective view of the urn
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 flexible verturo that can be used for. the present invention, having various separate layers to represent its construction; Figure 4 is the diagram of the arrangement of a
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 Rvparoil used to seal the piping of the present invention;

   Figure 5 is a diagram of the arrangement of another apparatus for manufacturing the piping according to the present invention; and Figure 6 is a section of the flexible piping
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 made according to the present invention, and showing its onpa ... quoted to flex and expand.



  Referring to Figures 1 and 2, they represent a pre-drilled mode of the new

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 EMI11.1
 piping. La.'figure 1 reproduces "" the first stage of the manufacture of the piping and represents a helical coil of a wire r (.es4j.-tant ', -t corrosion 10, such
 EMI11.2
 that it would appear when wrapped around a
 EMI11.3
 luandrin (not ref: re? entrq in order to ri, -ili.3er: 1.3 fan.le represented on figure 1. Two connectors 21, 22 are rr-pr8HE \ llt6s coriie etbint fixedt.-3 to the helical coil 10 to the points 12 by welding or by any n.ut),., Dean appropria.



  By fixing from this r..3j) iure the cozlwateurr3 21, 22 on the helical bousin 10, -Ces liai-Gon2 I) euv, .nt t-tre r (ali / 3 \ er; di: rcctèr: 1on our les Known "a 21, 22 in de6 'attached;.! p-'r' * tieuliors using vii fJ I1iltUUX or the other Jt'e9! t) yom1 do lueî3, have oi'x that d" .lU : the pizxi ± la .5,5.worz was in general r6a1is.:'o only by: 1.'ui: ilicmtiorl of a curl.

   However, it may be EWhJlt'1ç: aux to use a ban <.t0 when performing; :) joints in "ccrtrdwH3 applica" tionr. for er1POoh} r clan fui tao from air or from: 1 lost of 1; 'csrcr.catl d * nu le; \ yatè:; 1 (j. 0 p; ii> iait, we vc5 <1 qu. ul: ili "'sfition don connnctom'n 21, bzz qui sunt r' i'i '(. f! I1'Lt; fJ cc'h'no t, ^' t.tl1't here -under 1 & forine ft ', Cartt!' C: Gtal2 'f1B' .'ft '(- tP da' tit, l'Fsu'X do poôle du r1itt ["t1't"! Wanted, tly;, rt? Jn4 conHi, h ' r! .bl ': 1 (1111; -la 1.'Újif1I;: 1: CE'l axial du ayt) tèl'1 (JorBq' 'Il o: t 1notalll. Las oonnecteuru en forr'e de, pipes of polt3 al, 2>? f.JvnL ar! '"buitda r: vsntrzFrau: r; wrTt u intÚ'Ü! 1, .U' deM r:; ti, riitli; du sausage f-'licodnl 1 c7 so do can bn :: \) tl "t), l ': I t, r; i'xt. C..Lt,? i, îL? 1? t; 1 this one ot t'vitcr d Li}; ) C't trC r 'f, tTr.'1t'tt <y: (\ m? \; J "' t'zf: /, ^ ;. ratzx of" i t11y: 1'llwZ ';.

    when Inn joined; ; ". t7ft ri '<1. lii! <; 0: / 00 (1C ^ fé: conll.:10';:'.,1',j S3? F, .t)? ti: iJ :: Cltfili .1 '-, td mt!?' C,: 'I1;'; (diz 'tlltit.2rT ", t:; yes, .l?,. Or elVfW ri' at t 1 '(> 8 Omh11 .. 11 te :! du r'ysrf: l; a3,

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Referring to Figure 2, it shows the finished product in which the flexible coil 10 at the ends of which the connectors 21, 22 are fixed is covered by a flexible cover 30.

   The high axial resistance of the piping indicated above
 EMI12.1
 pC1.1t be obtained ^ sizr: ll.emez7t using a flexible cover 30 comprising: an insulating layer 32 and a layer 33 forming a barrier against the vapors applied
 EMI12.2
 above the helical coil 10, the insulating cC '') che 32 located against the helical coil 10.

   The inner layer, which in this case is formed by the insulating material 32, can adhere to the strand and, preferably,
 EMI12.3
 'also by hand :; one part of each connector? 1, 22, using an adhesive. Preferably, the adhesive is one. adhesive based on a lss to.r = ne of: .iOrt8 that it does not bring any gine -'i 'the flexibility of the piping. The soft cover 30 extends from pl "{fl'l2n" C beyond, to the sausage bÓlico! U'.ll 10 of 17tçori L cover ca; r :: ltm .: srzt; the sur ... face, ttri: urr of one '' Jf1 CO; lhct \ 3Urf, for example 22, Ft of Uc (j1.1 partially cover t the surface 'extth'fuure due to the other cormecctour 21 pO \ U. '1'0 rr;' Ir lin cor; 1bina: Í ... QJ1 with these (.lm? 11 tt! connector :! female and ,,,; ne, ren ... lJ .., JC (, ivc (UE) ut.

   The ilJù1 sheet: .u.te or layer 32 ac 1; dE: preference const'itut'e by r10 :; f 3hr'r.; = dPo ver ': re qui rés.Lstent' f1 t,) ute dÓt (rio1.'atioH. J, 'rila,': rii. '<. "1 iiitoméi' <can be PU1VÔ1 ' ic ({on the r: Ci ':' r.Ei: 2 in f.punt1, t.; s sufficient to fix the sheet (nll '1 ±: sausage l; ali.ruizrl, for forunp film intfxtt "rA liDI : c P01! 1 'the t' \ ,, nj; erie and to block we place the fibers;) rj {.t'.1h ('(H-' n'il 'inside the sheet insulating 32.

 <Desc / Clms Page number 13>

 
 EMI13.1
 To increase the strength characteristics of the flexible piping, an inner layer 31 of fabric can be used in the blanket.
 EMI13.2
 ple 30.

   This fabric is preferably herbal tea with artificial fibers exhibiting deflected tensile strengths, for example a glass fiber cloth.



  Glass fibers or any other fabric have a
 EMI13.3
 excellent surface for adhering the heliool "dal coil 10 to the flexible cover 30. In addition, the amount of adhesive used can be reduced so that the openings in the fabric allow the bran to pass through. inside the piping to layer 32 which dampens sound as well as insulates heat.
 EMI13.4
 A fabric layer, preferably having the rosyness and smooth surface of glass fibers, prevents erosion of the fibers of the insulating layer 32 and forms a substantially smooth interior surface for the piping.



   At will, the soft cover 10 can be
 EMI13.5
 Ai; setnbl <Se au prénl-i <bla ¯4anx 1;.>. Ruosure desired to reduce the duration of assembly in the production line 1orfifiia 'on 1': 1brick flexible piping. that the c (-jiiclio of fabric 31 and the insulating layer 32} H3lJ \ '(:; 11t be fii <ni ;;: bides beforehand and can be compJ: in'6es before applying them on the sausage' helical 10. It 'can be
 EMI13.6
 , advantageous to add the outer layer: I ... 1.J.] 'e or layer * forming a vapor barrier 33 of vinyl or another material which r63i8 you before,:'; euoemont aux (. " raflurQu to the two inner layers before t <;; nfl;> ii> 1st s.15le bQ1.1.din helical 10.

   However, it can be before. "-:! Them to roll up or apply the two layers s ini; <± i, 1 - .. u ..

 <Desc / Clms Page number 14>

   first on the helical coil in widths approximately equal to the length of the desired piping, and
 EMI14.1
 then apply the coù, cl.1;

   33 forming barrier3 against vapors as a second cover so that
 EMI14.2
 the dou c <) Ud ";); 3 gaskets can be pulled apart for at, 7, still lie in the resistance characteristics of the flexible piping toat by reducing the risk of air leaks or falls do pressure.
 EMI14.3
 One can see, particu7..ixer.ent when one makes adhere. inner layer of fabric or fabric 31 to the helical coil 10 and to the connectors 21, 22, which
 EMI14.4
 Maintain a low-priced unit> 8 structure while retaining sufficient flexibility to achieve a 180-degree curve with the piping without flattening it out or reducing its efficiency.

   If for an application by ...
 EMI14.5
 ti-culière, we do not want> z.3 of connectors, then the use of your loop or fabric 31 considerably increases the resistance of the flexible piping, while presenting a good surface on which we can make
 EMI14.6
 adhere the sausage Yoz.iaoi.il 10 in,: 'Yi 1.nt au'one or more back turns of the sausage 10; 3 =; found loose and alÜatissmt .1! l rendering the piping unusable.



   Referring to Figures 4 and 5, they represent an apparatus for implementing the new process for manufacturing the new flexible tubing.
 EMI14.7
 of the present invention. A r ^., Ndrin di:;. Ânr in a general way <Sn6ral? by reference 110 has semi-sections. circulars 111 and 1 12 n0i1 * W; Hur a shaft 1 13 to turn.

   Sections 111 and 112 can be flattened towards each other to remove flexible tubing when

 <Desc / Clms Page number 15>

 
 EMI15.1
 that 'fRbri'c &' bi-ù33. '' eHt terriinée. Ü1 r.ot.;. Ur or another .. '...: w, i ;;.,.' ').' X.soy.:zz 'il 4 g¯wt; pij%> 1 µe. ¯ àç, we rr t; a '.. int7x 1' .Wo, .. i 1 1 J at to do it tourier, 'IJne helix dcj: itinu to i zrJ r 1' nr: .-: ature de la: yttt, .vi, oupl. "rf - !, ili sc'e .1. 1"; iii: J'un '' "wire 9? .cl which '' '0f'-is''aur 1.1n bouine e <1 t;>. L. Ii ::, rut éi ti 1 on 1P1.



  We do pàQ9QT; - 1p thread through -cross uxi slide '¯f 122 rc- "dre; i, sùu1 <É> Îin' l '.") Llüçi =, rii,; er 1 c.Juci>, e inh4i: r. i <a li fil '-produitait" he A' sif .Jmn> é.izasin6 ciir J 'bobinf 12l ,, The j.'il..l20.t ansnite advance ù t; rn.v4x ^ lzne rifirliint, t ": r.zar3 1'2 ..- donr: j ,: over 120 la for> .a pr'ibl.ibl. ' dune h.3: .n, t: nwi coux ^ bant following a curvature cm'rr;: -. LQr.c'aa, cu ca.rGtr3 ..c ''. Caux wanted do 1, <pipe, pt ii 't' 'v 0 ti itiiit rci leo r.:-â.z't ;, i; ii ,it,; ; <J.xP <; 3 .. of. iid0, j, oe: .. A. iàa xàrti,> -'e] .Fi mrcOrior; 9? 3 l, f it. o> 1 4tri at 1: i. <ndrin? i t.-uauro f.uf. the halt '? eat J'orr.û.

   Uri key1ji'g # t 1 "i-undrin 110 du f ,,., Yon cf quo Fia ditihnsion, 8bit. TQ.; Hi.h ';; i, i'> iil; al '' au dj. '. <.t) 'int' '- .'J.lLsu1 "wanted duo À ..; pipe.toi, 1 <: xoui> 1,> s (all'1 Crf'1 ..': ili'iwfJ En ùl , 'lil "; li> à¯ç (; 1> 1 <; à 1: ù J..i.! ßlÂr'a' J .. 'n' E: 2 'j <.' '': i" : t. 'la ia9 cn d' emt àtàiYP q 1 'l helic;> 1'or ,, / <; ti ii'r 1. <'. <i>, 1, 110 pui 'w> e .pni " oÀ /. lÙ4Q..oi> iail-Làr <1 luolantu y; v: n + P LI: rcrr, '.



  'p).' ln ''. "'Ln' wall '' 'f40' '." t' d .:, '<' 't'; ncc 4aÎt; '1.,; rl.l;' : "u 'W layer ifiolun% e compraHHiblG cfiàl <f <# cur> ii, <' .r, nrai, s.4lr'ry 'en 4tvfi'ii iii 41 i> 1 <' <, oi 'i z1 1 '.'.:; u'.u \ 'une i ol'17o en, 1 * 1 {.f.' r = rx '. for LM r <, <1, qon., iri "1i (il.: #>"' jii.u <; 1, riut, t! n jl'F;., G !. <; 'i <;. ii i.;.; i <1 <>; <13Q' .'j.rs, t.Ûirl45 iur Ài, iijui '<1 4 Mi (: Z'1, r F4 upj'ij. 'tu :.') '' Lt 7A (fi: M, F7. on 1 # 1 wire 1 30 .fom <+ nt '1' ± ji, c;, l "<(.J: 1 ¯ f .j <1 i 1. <g ia nr 1 J i; -> iii u.1. "<. A, j iàj> 1 6's t". '..' .c3J .. ta. Q, '"c, l .cr 'pv.s,' x t'c, flexed or courix'c 1, -, tit

 <Desc / Clms Page number 16>

 
 EMI16.1
 r, iyon, we choose the spring wire 120 so that it has a diameter and a spacing in the helix r4j> otiù; .n> t 'a prode-.terr.einr connection: with the diaEiètra 1 ; it <laughing c.:

   the c-Jnc11.lÎ ''; e e'e the compressibility of the isolated loom.



  We. ! 1 tro w = ait, ..when using a relatively thick wall of insulating material neck: pre ::.? B7.e to surround the helix wire, it is necessary to respect a r01aio11. p. (d6tentin {.r, between the spacing of each StJire by n.pport G; a neighboring whorl which must be coitprised in: uno gamma do three-quarter to one and a half times It empties 1 l ';' iié "" the 'wall to clt to this one: t'orr, or between' leu sj ii ..> lonau'on make the tUYltl.tto flcl1ir! 'i' have a small 1 "lYt , m cane que et-:] l (... ci flattens the intf:; r; \. a1, U "'., In addition, the wire size must be sufficient for.: l: '::: U1 "vr'" Chf (! 1.W npii <e un.} R4xj, Jt <inco radial which '3? Tt UU1J (.rifJU1'c la = or'. ''. Ntc "f1E. fti "(; 11 <> U1 'oon.priinii, lu wall i091aJ' \: tf'l and lh d!; t '<) 1'm (r lormu'on bend it 4 ox un pecit 1., nyún . gn j1! 't "' I'o:!: '! 1Ia.n !;

   the helix do tell <9 sort q1.t ', Qlle ase find dotenduo aur le ras, t7câr, n 110, 1'H! pl-lU! IIf.t qfimliei, dra tJ.'1iT' (; tond, 101 "': ou'ol1 tnit' f.1," cdd.l '? .Il;.,. ynutarv.c ;, "1 l'rJ.c; L: J.1.t <l' J .. . l'fn. ', t: wt1.on (i'1111r t'ion 1'1'ftl' ih ',;> dp. 1' \ \ 111! 'I' ") 1 4r¯f!" ( .? J, f. '; 1: Ii'L'r ^ f3F ne 1' ld, co. For as "ut'9r still. Que les or '1'00 r"' 1 (1pccti ... vvii rta ! nrÜn1; in! 1 (mt ù un C) 1'4ClHT (mt r4: <ulior, on p; ut 1 <iir <:: n: = 'ma L!;::,. i.ru; j' ; ". 1 J ice .rvz, .e44rr de. La puyol, cur.ll1Jt; j dc, cii, t -J.HI !, 1 wit.



  POUL '. dos aj ,, pl, 1 <: iit; 1 <> t, J pal'1..i ..: 1 t.L1 (rl "; ';) (} J1. r. found what loraquc le diai ,, é; ru irit41ioiii 'du la tu. "utrie y <iuj> 1 <; ne, d {, PC11300 ianci 17 & vr, le d1.1.Vllrd ,, 1"'> 0.1t fil d ")? 'h3. cc 1ti ..

 <Desc / Clms Page number 17>

 
 EMI17.1
 



  1lOIt, ..; j.'z ^ = ,,, y.,,. ,: "", 'srkr # .. pg ^ .blsrawe, M'rr: N..w .... "". r, "" .1 "-: '.. z, Meu ........ t, 3 * ί ....



  'bÂ'% 8. ' .. w [., 1r W s i rvr o 1y µÉµµµ / .¯, 'i' l ..i ** j j 't w 6 9 \ "' '1f" 1 <i f ... f ..



  : 1. ':', "- 1 '1 -.



  Km. rice '\, \ ,,' i \ '"lise is avuntagerUH'Hnent of about 1 mm. In addition, t $ ié', y. k, yd.ç; when the inner diameter no d <'! pa'" 3p ji> in 17r. r.> :; , Rp .. 5.



  :::.,. ,, spra.o; exr.Îeri Jntre l'es apipoa can be '! 9 ft.!.: c> uvi- F.:"4: ".. xi on. Moreover, when the diameter in.tc'fitmr no \ r'1; "" "" exceeds pan 178 mm; .r; 7.sgsur de, a wall 1 "Ut 1tr (" a. \: "" '\ 1i) - t.



  ±% / Y "" 'approxi.r..a tivem'3rit of 25 r.4n to obtain lis! 1 (.il), eurf,., "" ErrxetGrstiquoa, .sal.omaztt all s.;.; Xur ¯nt, ru (ÎÎ /, ", o characteristics of isolation while aU01" tr1.11Í; qi16> in Il ù;,; ,, .., ..



  µik. ;; .. piping flexes inconveniently on a small: radius.



  .'-'-. '\': ',:' '' ', Lorxq ,, io .a diaoètrù int <$ r 1; ur of the pipe!' Ie '$ iiµ, 1 "" does not exceed 305 tùi, the diameter of the wire da the helioe k> D1- ..



  : '; \.,' 'can be approximately 1.5 Mi .. In a pipe where, "" ",'" ',;:,: "the inside diameter does not exceed pua 30b mh,.' :: rz7tcer .: we do.



  #eiy 4 t-: 4 = ,, ink the turns can tro of 25 tt11 approximately. Rather ;, 1µ (1 ,. '.



  ...., f, "" with a tello tuyautorio, the wall thickness can be n.bo \: oIJ ,; 3..w, ..., again Otro de 25 J1 !, l snviron.



  "" '' 1 ',', '5' ,, ,, When 1 <3 diarjetro inside the piping '4, <' t, \\.:, 'No depf \ srJ (' 9 pitch 457 mm, the The diameter of the helix wire can be approximately 8 mm. With a t \ 13, dinra8t: r'e, the Of.1I '! tcol'1ent.



  \ l \ 4 \ .p l% É) 1.;. between the s 1r-es .prut I) t1: '1) of approximately 3S mm.: ,, 1' <2j> aifiieui, t "... ', -,' i: '' \ '' of the wall do 25 rnra approximately.



  1t \, <, "I", 'K-,, ". Note that although dps (x"! LJ1ple:' .x r..ar.



  ! (\ ... "... nose .. will bind be given here, ln presents 1> wr = iitioi <re eu 1 '- * - t <t,". wh <,, .. mite pr, z . these particular dimensions /), nui Including ttVJn tl \ ...



  V \, \ '. CI' µ '"' ..,.



  ::. 5, ¯ .. gnuses for dimensioned j) a1, 't: l.C11Jji'> 'acl a ;; cr: t.t: r, - t; 1ld i c9r'â,' .'J '' which. na serve the Iu '"repl'Ósl7ntC? r la pl'PCl1t (' in '/' -. 'nt.ion,,;,;'." ,., according to its frame on 1'.1.1.1.3 c4tï 'U.



  6fm4 '", ill, 1.: I. By rC, lJorting to iiiL1i, e 6, she 1:, pr <isfini <: ...... ,, \ U,' .... 01, "\" "a section of a pipe 'aori ..; uc according to In. j> 1 ,,' 13en; <; , w ...



   ; .w, :: hj¯ invention, which is represented in:) o: l1tio! 1 il "ci12 ;, Il c" '... "..'" It should be noted that the wall 160 is <1, li 'ox i.; ev <: 1.:. <in-). <.. \ !!'.



  . .not .. , .



  Ti4i .. ,,,, SU. '.} "'. T.T- ,.



  \ 1 \\, µlÎ "l '' 4", s v i.



  4xa.; i "
 EMI17.2
 lise is advantageously about 1 mu. In addition, when the inside diameter does not d <'! Pa' "3p ji> in 171- ', r-'rs, .'wspra.oexr. T Jnter the esp 9piroi3 may be 1i re? ,, approx. In addition, when] .ci intrit diameter, ui, does not exceed 178 mmi wall thickness 1 "Ut 1tr (" approxi.r..a tivem'3rit of 25 rin to obtain lis! 1 (.il), eurf,., characteristics of isolomont while aU01 "tr1.11Í; qi16> in piping flexes disadvantageously on a small: radius.



  Lorxq, where the intetrc int <$ r 1; ur of the pipe! 'Ie does not exceed 305 aai, the diameter of the helium wire' can ttr.o of about 1.5 Mi .. In a pipe whose inside diameter does not exceed pua 30b ni ;, 1 ".ai; pavei,; unl between the turns can be about 25 tt11. Rather ;, with a tello pipe rio, the thickness of the wall can li new Ôtro of about 25 nra.



  When the inner diameter of the piping does not exceed 457 mm, the diameter of the propeller wire may be about 2 mm. With a t \ 13, diantre, 1'ex, rrcrrmzzt. between the turns8 'out I) t1:' 1) of 3F3 mm el1vtron 'Ji, the' pt1iFU't. of the wall of about 25 inn.



  It should be noted that although dps (x '<! LJ1ple:' J, ru ti (: Iliers are given here, the present irvr5zt, arr re (; 0 1;. Not 'l these particular dimensions /), which rwxartrt, gnuses for the 'dimension, 3 j) a1.'t: l, c11Jji'> 'acl' JI} critu ,, t; 1ld which do not serve 51u '"reprÓsl7ntC? r the pl'PCl1t (' inv: nf , iürz, according to its framework the plu3 c4tï'U., Referring to the fiir, ruxw 6, it 1: .pr <ôsfini <: a section of a pipe manufactured according to In. j> 1 ,, "13en; < ;

   invention, which is shown in ponition il "ci12 ;, It should be noted that the wall 160 is <1, li'ox i.; e v <: 1.:. <in-

 <Desc / Clms Page number 18>

 
 EMI18.1
 t4; .iqur on <.re the turns: mcce3sives of the h'icc frame 150 to teourë quf ('11f' eet comp1 "imr $ e inward x; u <1;> interior part.? of bending rivon. l, r> r factors indicated? prdC (3ds: .. iJnt and which were used for If t. '' l'miner 100 r.ii. <itiona between the various 6ltuents to manufacture Co t tr . ti13 <Autoiio peniieiterit t. this one to chir on a small radius.

   The regular spacings of the usdaLura helicoldtle 150 the relaxed state, the use of a "4to (i'é in vorro fibers' comm6 interior trim 4th b. P! J, r0i 160 which os + hollle and which aiii ..i facilitates the defonr.ation of 1> 1 Imrtic in> lant <> do the wall 160, the calmness of the wire which ret1tc the scra'ee! t radial or the forces of pressure and bending, thus that the spacings> ie; dc 1> helical uncatuie 150 all contribute was rhrult; Ü obtained. Bi-n q> .i 'it was possible to use only a ioF; i; tie dra arrangement ... clo fabrication which have just been described and thus obtain better bending characteristics than l) s produced earlier.l, the use of all the relations .toned rather high pernat to obtain the best manufacture of the piping, cotltnic it has been described.



  It is obvious that the present invention has been described below only for explanatory purposes but in no way li-) / li tutive and that we can provide it with all variants within its scope.



  R t- S Il 11. E A - Nouple piping, because: Lct'riJ0e: p: 1.r the points. <Uiv;, nb ;; sopn;, ôor.iiit or in coni>; 1 .aisons: - 'Elle corup1',; nd a helical coil of metal wire, dgs connecteU1'fJ 1'i: "'8 f.1. each oxtr'; mit6 of

 <Desc / Clms Page number 19>

 
 EMI19.1
 helical coil, a CJlli :: '' i; l.tT ', ,,' '.' y, l'7 'z -., .. C; a., s- "l: a li coil, clear cover 'f-' C'01'î ": i".: .. a '' inf; .11.1 (: i:; 't ... t The insulator ut 1.L.ClEt 1 (; td.1.; .. 'xt3': t. '. u.' '/trr;.-,;'t'.- C'.:! 1 ",. steam ?. 'i EC011'. "" tnt la; 'u:' f!. '0 {"G yS,.; r ..., t., ¯ 1: 1 F,: ... i? l.> le.:' ti. ei:? tC '' and un:.: o. ',: m> ié; .ir: ii.i;'. "., ': 1 1., ..'. i. ': iS?': 1.it "laughs dp ('n? I.,. Û 1-'a3..lL: 4'" ï, 4. = I: i: '> T.:> <. I. 1>. :: ;., # ¯:.,.



  2 - 1, t.'u1i1.1T,. '1'i; tt:',; ti ...: 1 .w.: T '' j.JJ. '"<..; .- <of the sausage ; 1 t / fll'lfin (1 ('' t'cv \ .t ': f'i r' <:: r!; ';. 1 \'. 1.;,, ': N' 1 1, 1.: I = r <i ';.: Outer r oe I 1' ur: 1..1 ..) :: Gt ::. Ft: '=' uat ', <' -'t zip. {. .4. T, '., ...) "5-r' uartiolluffiont la aut'f'j '0 /, 1; (: 1'1, '11' (- tlr '" "! I; 1 t ... r = r;;,:;. <; <: <ai, 1 for forrrwr avof '"jx 1) 1:> (; 1)"; JrJ ": L :("! i' C¯ 0 !) 'nl' {L.'n ', t'nmQl1 and i: # ùlc, recct1V ('! ,, "1.1 ,.



  3 .. 1 ,. :) Cta1'.tltt ':.': W ': 3:.;. , t'c, ';;' .J1.Y'tU ffa j; #> 4,], ot: -: '(' fl1hQÍteut: 1 .J .. '1.nv'! 'L (: t1!'; .. .. ¯'tc : ';': '.!.:' /;.: 1.I :, ': .1'.1 bCru-' c: .. t'4 lu. "O..ca'll uU, J, ..1f :. il w .. "r" J <'n' ::,; .. i ,, <v; '3îi'-Aïi..i, 511: t :: to; tl', '1 'tJ E;:' t jt1.1.1S1rt'4; r., .i, l. 1., ¯j.an. trtk = 1'3 ':? i v. rjt, t la f' (1u111e 1 .:; 011 (1) lf 1,0 \ 1 \ ':' Lr: 'c' 1 J, -, j = -% I '¯i S'. = 1: .. (; I:! (. ) .hii du bOt,; l, 11 1t, - .. Lcci: .ï; tl.



  4 - (1, y ....;, .t ': i] .1f r t7 <y.iix' ... Í 'r il.ïa' i. L: .urs! '. Tl' den iliCf ':: tr rC'l'l''T :: Lt' lt; H: 'j1,;.;!.'.: l ;::.: '":" - {;.! ": 1" , C! 'T 1 "tti. 3ii'I'., '¯: -'11 q1J,;! 1't1.:,.'",:>, LJ, '!' (",,:. T ,, i'i ,. J.) leafy:., iii, .l.tE.'ilitc't: a: ', 1> 1 1',: '; dJ: hr1.l':;,.! .: '1 .. r', ". Ô" j1- ']' a film ll1t'l '-:' d 'li. ::; "1' \. 'D 1'f -", t, iLC :.:, ¯ "1 ,. .i.: 'Ir block 1, .." 1.'77r ?:'. Dt '.' Lt. '' ':; l'! 1 ..;.;. ..:. <. j,:; ';,: i \ l' 1. #.> m ... 'Lt4 ::! La C,)':> ;. i. Ar:: '- "; fl :; ''> '!,'. L '-'! ..-,:,. ± 'J ..:, \ j.:>.i ":' ci: 1 <ùic ii> +., # 1, 1.; i, 1. T'it iii:,;,:,, ī ,: '' -; '' .. t. ..., "(" "1 ';'; <ioe; v \ r '!' l 'ti..c;' c, L7 ::; .'r: ''.'.'...:.; '::.. <...

     : "., 1; 4 and l4L iSWt [.; ^ ltIi'Î. '' <I't .1. \ 1. '<- t .-, i (: 1 ..t'P': ¯ 1 "'!' IC {)! 1t: T't (: t". "Lvt" .i71 ':.' \ n;; 'r :::.' I ". ', .., h,' ! -., ... t,.,>, 1: t: 1t it '

 <Desc / Clms Page number 20>

 
 EMI20.1
 f "!: ... ,,,,,, p;" "" "" '' '' '' '' '' = ---. "'" ,, "" "' '' '' '\,,;' ... - -, - @WEfi" ':.



  , g; *,,, * * oq *; *** *** ***, ... ,, e vs its s .i ... t.à., ........ ... jifi <a4'l ". t ............



  -'.- .. - 20 - 4t ..-- \ '' II ", inside on the hé.icad1 coil to form a,; ,,;.,,; * ..; .. Ht.unitary resistant structure flexible delay.



  .at.,.



  '\' \ 1. '".. Un: .l') Y0n sC'rt J fix by gluing the coui \ '" \ H.' '', Verturc snr the helical coil and on the connectors' 5 '^' .



  ;) '"'" in order to form uiie otructurp uni tair0 resistant but 1 \\ i,> ", n '-.-. le.



  ;% - # /:> =,% 3ïÀ% x: ... 7 - The soft cover placed over Î0l "'l i.) F) L! 1 tn C') {.., ::> r1 , e an inner c0 ', woven fabric m # iii "' 'cOftlport'J.nt aon fil3 whose tensile strength is" tv>' r and an outer c0'leL ',' compress means Mj # iilz # J,. IOrtn:!. 1 \ t an irtf.r, rtt and a br BREER for vapors.



  "" '8 - The'! 'Oy <: n of fixation, lA 1.'1, inner layer,.



  , \ ,, "'\!' i 'rieuro es contjcituu,! J, 1!' a strong additive that resists "" "! \ l't. f'lml ':' 1 ') (111 had pulv (' T'i3d r "ur Cf '1. t) inner layer% 1 @ 5 <fi ± 1 \ t \ U-1'" ro, '11. ; urnt; it: r; rat'fi; atitr's for 1'ixo1 "on 7.fen: xentb: l ,, <. of the sausage and for f'o! 'tnf'1" a smooth inner film ... ,, \, \, "\ 1 ;." ",, for the LUY tÀ to t ± 3 Y'i e.



  "4 ''" "0 - Lu layer .tit, 'ri.a, rrc e t constituted by an aaid,:.



  (1 off, :) ti., :: t. . 1,., Liii; .1 (. '' Ii; xt.c: iu'tH "icit'll'33 pi, 4; Qentxint, n.", Den r:; i. ;; tnc:! I? Iev <in 5 the traction . t) -.



  , 41 \ '' '"", 10 - 1'v.d! .C: .Jif is rr'a1.rt: x: i: lr in quantity inxuf-' 1 '. f 1.:1 'pte> for b1 (') quor Here nv., n'tu.Y'Of! d 1 t (toffe qui ner-, 1 \ hh, \.



  "" '"' 'V (;! ..... ii t: run: 11'.O 1; t 1:' 0 le on 1. the ii.-olfmt from inside,. <T. .. di, t 1Y'11J'I'01 'iu.



  , 11 ",, \ h",.



  . \\ iW. ',' "11 .Lec cnnu: xl.v: a 1f) 1'Pl 'ent coii * titu <F <1 by a'" M'S H z 4âàex n,: '. 1 VI;, 1lt. (",) 1, j:!. Tw, ii.l, i;, e CUt? J) l.'Ci, 'tr of the turns es- ,,., I, ;;, *.,> "tµktiai IJ" C ,:: "t '1.t> vt 1'cr L, ti:"', 1. ''.; 'r .., j;' ,: c F'xl üxi rui '. ±: 7 "e 'H \\ t,:., I :: 01'1I.1.1' Cf '? Ili'2'r. ^. 5 m IJ, 1 r> nt0'l.Y'Ú net helix eu - {'he,, W.' > t'li '"> and; ai i: r;,' '11 f, TV" at2 * \ rmi ,, \' ou1.r 1? u :: Il'i1'e ::, de 1'il espa-: 1 t "'\", 1,: \ ,, 1. \.' M,: 3 10; 1 1, .Lt,;, (1.) :; 1 F151i, "'.. i l' fJ; Ij-'J.r." 1 d, mt Gt1 t l'l. ' rlüux: lp1l'CB "$ SS" x, '': C s '\ 1 \ U "" ,.' ifc: i3, "- \ '" There ,, ya:.



  , j1'l ,,, \. i ',. t4 '! s's', M,. r3 "x- ',.' rpy.



  .tfta,., ..



  - "aa,.", \\ 1, \ ..



  -. '". éirritk 3'4 a'
 EMI20.2
 interior'-) on the sausage hé.icad1 to form a:; resistant unitary structure!. flexible release.



  - Un: .l ') Y0n is used to fix by gluing the cover on the helical coil and on the connectors in order to form a strong unitary structure but L (I' \., The.
 EMI20.3
 



  7 - The soft cover placed on top
 EMI20.4
 i i.) f) L! 1 tn r: =, .. has an interior cord of woven fabric conyortïxnt aan fil3 whose tensile strength is,: (-, v: (1 and a c0 'leL', 'external compresses means IOrtn:!. 1 \ t an irtf.r, r: t and a bd.r.rH're for the va, pcurs.



  8 - The '!' Oy {: n of fixation, lA ln, intél'ieU1'C are contjcituu,! J, 1! ' a resistant ela; 3toiùl adlt'Ísif! \ 1; <f'i, ii: i>; 'o (have r; iil v rin <5 [' Ur c'-Ho interior layer t'u; urnt; it: r; rat'fi; atitr's for the 1'ixür on 7.fen: xentb: l of the coil and for f'o! 'tnf'1 "a smooth interior film for the piping 0 - Lu layer .nt., 'ri. "xrc nnt incorporated p1.r a (1 off. :) ti., :: t.. 1,., Liii; .1 (.' 'ii; xt.c: iu'tH" icit'll '33 pi <4; Qentxint den r:; i. ;; tr, c:! I? Iev <in 5 the traotton.



  10 - I'rxdlac ".r3, x 'is rr'a1.rt' -. X: i: lr in quantity inxuff 1.:1 'pte> for b1 r> quor Here ç: .w; iilurosi d 1 t (toffe qui nerV (;! ..... ii t: run: 11'.O 1; t 1: '0 le on 1. l' Ü'úllUlt since J. 'intc'riEur di, 1 :. t11 , Y'11J-r01'iu.



  11 .- .Lec conaui "; <; 1f) 1'Pl 'C: 1t coii * titu <F <1 by un:'. 1 VI: .1lt! '(",) 1 ,,: ...: .tw, ii.l, i;, e CUt? j) l.'Ci, des si> iron es-, IJ "C ,::" t '1.t> vt 1'crl,., ti: " ', 1.' '., "::"' Fw en une rui '. ±: 7 "ei :: 01'1I.1.1' cn,; 1> tar = u? Ii ,, lc IJ, 1 r> nt0'l.rú net helix in - {'il, and U1 1: .ij; <: fi nP1% i1., n \ rmikt.oU1.r le;' :: Il'i1'e ::, de 1'il espa- ';, "/' .; 1 10; 1 1..Lt ,; ' (1.) :; 1 F151i, X ''., I l 'fj; q,' r. "1 d.mt Gt1 t l'l. ' two npiren

 <Desc / Clms Page number 21>

 
 EMI21.1
 being included in a ±) range of trcrit; -quax't 'mr; f3 times and rterde 11C: pais: 1I? ur' de 1'l pat ':)! 11, ":> ,,>.>; I r.tt) y.::"t.!"- 'this of I, J (f, 1r: Ut: l' between - '.: #; j..i.>.;.; J 1 ,,; :: '(nl',) n fi''1 "flex the piping cur un p <:, tit t} '!!.) oÍ' :: 1.1./;

   B '; .zi.i \ "towards the interior, the gauge of the wire being' uf1'Ü'.J.!. Pc'ur! UwurèY 'at each npire an x': ¯.: ;;.; < -r-ce: 1 '", 1 1.1-:' 1: 1) ..: '. ';,.;.: pprieure? i the drill: rlf1ce ::; .- L -!' :: -. ': r) iï. <l5t n ,, t'J.t.'5 7 '1 ... jr F .. insulating and deforcr lOl'1qu! () n .1. :). fa: '. t 1,: B, eM. (r:;'. eL '' a small radius.



  12 - The medium Se1 "T [Lf th; :: arr (: wwr. '1--' '.' ': .I: #ii.:>: # (; L' /.] Takes an r, oyo1 , 8 (rV'JÎJ, .Ea3. T '.' 'I! Lï 63't.'t' 1 ..; LU 4 <a '', '!' JJc '"' to the wall.



  13 - jj, exB nLro: ". '. Ont, t;,: i.! Rt. {R: ,,"; i2 :::' ia, C "- ': 1'" i using an h <filice de 1'il j) T't1'ktI'tt: Ft '.à.iV.itd: ic :: <7tit'i. ,, tf> desired and in gertuettarït:; r, t.t, .. 1., 'i i <; <; W = i; ', ¯ ;;>, 1 <.> L' u inside 1> 1 wall 'j, lo} "') than '11' 'i,:; t ii i.', < <,; it, dutpndu when the duct is 1 - .; r J'i <[:; li.i <,.



  14 - 'Ût ctilll'1k \ .1'e int' 1'il! Ur tir3 If) "(" l'ch,) 1.'3 'no exceeds p: 1.13 179 rm and the ciir3:; t-' -1,?. (,, 1'1 "1 ii 't" 1 iii'; f'viron,] 1 fJpace! L: have <; ii 1: r. <% 1 '; - ::, Í. 1 "'.:.;.'> ¯.;:" P., 1 "19 mln C'Ilvir'o11 1 '; 1: ¯1'> 'j> .: i I; H'Il! Ir- 3 1 ,, 1, - ,, ¯ s,, -: 1; '' t! L, II utiv about. Zij .. Lf ri: tt: 'i; 2r .: J1Jt.'I'll;' - d ', l,' i 0 \ 111 ",;, 1- '..' If) not exceed 305 uun, the 1'11 <inii, tr <; of the fj of the 7 'lutSli c or of about 1.5 tnm, 1 "" [') ': J [' (; I, 1'111: Ç ,, 7i, t .. 1. <>:; t. : .r.: ¯, d '.': 1'l '"' lice cnt <1 <.i 25 hJI '<,>. <i:;,> 1 <;;.. [9, j yi î ,; eyt '' u'- i, iy; tr .., ¯p <-j.; t of about 25 rtm.



  16 - Le d: LLCatz't intr ', ri:! Mr due Ju r: citzct; d.Irr W' (tpasi.'c 'not 4 "7 Irttty 1. <; oÜ \ j ,,', Î. -) '(o) <ii i 1..if' 1 '.': lJI,: <. c.;, <, 1 2 mn approximately, the spacehiont cnn'e .1.en;> ;, 1 rc; up 1! JHfl tce

 <Desc / Clms Page number 22>

 
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 o:; t do J.8 iii approximately and the wall thickness is 25 '1:,.: eiiN.iron.



  B -)! 'Cc (1st for making a flexible pipe, ca rf \ ct, J.1'is / by the following points fIp! Tr6ement or in combination: Ü80! S;
 EMI22.2
 17 - n coi; oi> te '1 pr6: Form a metal wire'. i ', 1' 1 ', ::: 13:? 2'! la 1 ',) l'J'e of a helix by bending it as follows ..' H "¯, z .::.; Xr-: = x :;}, .cîan approximately to the dia- ¯; .x .iâ;! v 5x wanted from the con'tui'te e'u by surrounding this- = #> :. lice '' vcc .in> =,!: "; '0i from tr # itiéi> iiiolante compresnible 1 <Ji ;: 1 '<Jj> i; iz: iei; r is nor.ipriae dauo a range from.? /.'*: J' / "('\ in In ..i.trac: H: ;,. trU1t, successive turns: i: !! e 1.'ii, <lii .;.
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  1>? - The dian-Mre of the helix wire is chosen from i ', qon' Ct} qq 'il r31t aiCi; nni; to ensure at each ±; F1, a radial rv., trtr.a which is greater than the neesc.caire force for o9mp: rhyme the insulating wall when flexing under a small radius.



  19 - The propeller is fixed while it 8at at 1 '> relaxed ltttt f11..tr a mandrel and the wall is wound up by ... turn (this li / llci, 20 -. OR' I1J1> 11 ( j11O a 1.db (: Jif 'at least one doc :: 11, i1'P "df' ltJ \: l: tc'1.> 1. i llj, interior trim of the puroi i,> Ji "Lllro, ¯.3lotier In p '; rÔi aul' 'the propeller.



  21 ... A gal'üit the interior of the wall with a
 EMI22.4
 fabric.
 EMI22.5
 



  2z L'olar: xt,: E.on (le; tx'rt.; - txre consists of depositing fibers, o.ntaa and a binder on the fabric and; '<maturing CI' iiant. To obtain uno! lF1.tta insulating glued 1. 't ct fi'.

 <Desc / Clms Page number 23>

 
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  23 - On Riitoa> -3 3: l.th..3.i.c: '. ixirr <c ::. 'T f.úti; o iuol .''- ntcO: <. lé <:: h the stuff-' L on r ,, jjl: 1.q .. <; , ', 1 :: to: t. n .r..e, u'7 f :, t = rl ;, following <1: 2 T -., ^ t: ll '. l: ¯bs,: 'la- "<tt:'. '.,;:' (';' 1 .: '..". "' fJ,:", '.) 1', \ ;, 24 - 1.ki '.i'LiC.' '1 (de': 1} 1J "" ,,!,. J ..! J. ".; Ti,: [Jf1l- :.: f (; j" = 4 1'1 r un \ 3 O. ';; ":' t ', L:". 1.' :, fil i ': E:; 1 i.Çtr''ft, "= v 1'> ,; 1,1,; 1 '. \ 1' :: ,, 1'01. Ü àéj, oaaii "<1,> 1? Fibers Ü101a, 1t '; f;'." 1. .1'1> 1,.; Nt i: i;: et. Jll-.a '#' L.'st3. Nai1t Ü3it ', iAi'h.t: lti' <:. 1 4 t. <, T ';'. "'.",;.>; î¯. i, 1,;,; 1: r, -1 ï7y' (y; il L; I'1Z 'this 11,' u: t 1 / 0.1 ['1nttc .; r <: r Ide: t 1.v1 ',: x:: 1 ,,: Lr' -a'i <¯x "E'2 'l <i.; c: I'Itl'G, i "H.!. '..1 lI' '' :: i il! 1 /,:. '. ::::, C î;;', 'llh, .1..1. <N:'. tta pu-, king i111J1 :: 'ù ;. t ::. ;;, î: L.It', - '.- l. I :. oU; i I ": 1 \ J'1I ..' n1L 1. i.ei it:. <i, nilu t> i; 'id, (J ".Lel, 1 ,;' .l,