Document YjdD90gXno8e6kO9vMLJ85mjO

Jkni.rfXi J LIA24614 "*-' ' ' ?T-Vai;i|'; *8* wisihfc *1i i f- 'ng'n^rra ac welt u ne.-.'.>err LEAD INDUSTRIES ASSOCIATION SSS MADISON AVENUE NEW VONK 17. N. V. October 17, 19&. SUBJECT: SOUTOPROCf TtEXTBll ^AiglTICiO To Metibers of the Lead Industries Assoclstloa: We are attaching two brochures recently Issued which describe different types of flexible partitions. Cne Is an accordion t/pe door and the other a window shade type roll-up partition. Both hare ooe thing In cormon. They depend for their soundproof characteristics on heerlly lead-loaded flexible rlnyl plastic sheet. We are sending these to yi for two purposes. First, we believe that they are tangible evidence of the Increasing cocraerclal use of lead to prevent transmission of sound. Toe Curtltlon door has had at least three ccoeerclal Installations of which ve knew; naaely, la tha ABC Television 8tudlos in Los Angeles, l&ittler College near Los Angeles and the Pals School in the sene vicin'ty. The LeadX rolling partition Is on flrn order for Euntcr College In Jtev York and for a building In Chicago. From all the Information ve can gather it appears that sooethlng In the neighborhood of 1,000 tons cf lead will be used this year for sound and vibration proofing In one fers or another. In addition to the folding doors, the leaded vinyls are being used in gas pressure reducing stations. Jet aircraft, helicopters, typewriters and other applications. Seoood, we would urge yen as a pert of the lead Industry to investigate thoroughly the merits of the products described in the attached brochures In the event that you have a prehlea of providing soundproof flexible partitions In your own facilities. Also, if you have other sound and vibration proofing problems, please get in touch with the Lead Industries Association, which *my be able to assist you In solving these problea* through the use of our Industry's own products. Where flexibility Is not Involved sheet leal or other lead products nay be your solution. Very truly yours. LIA24615 "15! A RE/OLUTIONARY NEW CONCEPT IN SOUND CONTROL AND STRUCTURAL DESIGN FOR ACCORDION FOLDING DOORS N 1731.01 *m*m,*mi LIA24616 & ., i iiirta'ii rniUrn INTRODUCING THE KING OF SOUND CONTROL OILOIKIOOPI^DE) o ACCORDION FOLDING DOORS CURTITION'S NEW VL-23 AND VL-2 Th* probftm of tound trantm*tton hit long pfaguad tha building mduttry. Now. foe tha fieft tima. CurlitiOA oltar* tv* m accordion feeing type dooet that retard to^nd f***rtjr t*C4 at cttactvay at tha ******* wuudan door. Incorporated into th# now "SO^NO 0IV1DCR" ti an tiduvvt typae' tataful confuting of a tupportad toad-filled o*nyf knar. Tha found daadanmg qualrhat of la*d hat no oqual. A timtiar typae **d Ml#d ma*an*l hat long baa* utod m pattangae pH puna conduction to ratard unwanted tound. Co*jplad with tha ftront'ast. all etiannaf conttrvdion m tha industry. "SOUND OtVtDCH" it of iuparior dat<gn and hat no oqual. POST CARftlC* 0* Oy'c tr*t tt 4 y^j* ! *H t#1 tort* *f i ^ ! to N '^(*nt ft! re* & rat moon ap rat j * d . HtHCC PLAITS r*'r:*4 ta tww titn Nin litf Itia, art n(i< ai'ftiaaacr Traa act < !* flftl'f (! tM tfr (WiH kter IK( l-aft - tag $1 lilia N Mttuat att'wUti mn - pro mb tot my OOUfU ACT* LATCH Or4. >* * *a> at r -n w Can S* tyrtf < *< a* west*' firfat.r# HCW HANDLE M a*i ratal ft cnl'ng - red * Ut>* ( *'&**. -rt *lf'**t !9 It it* tana On* p*ct pinto latch ceM'd firlMlf* MtAVY-otmr I fCAM TRACK 01 $hsm*A* rttrvtioa 4* *- t*r karat *yUa Aff j from "tMtttf* i*| honlii twaatk, v<t prfomancf fa . ) "! *V*L- Compact Stack ftitto: 1' 1 ,Vw c u r t Fu o n *: CORPORATION AMCHOd POST Ai: ton foTM*# C torp<yt*i a tr <** pest tn ng ANCHOR CLIPS 01 tIT** St*H MV !</ r-u imi i*t* r*ri pcs-t-oa he rw ti k'm POSITIONING CU **clfls it<* tet<t-* <<vH poviroe ha latrfc (!#!* HtAT UM ATTACHMENT kf-i+ 't'1 'tfO lac* tr >.** '**'* t'M at et < * ta NfW TtXUlRCt. Mtw COLORS v *' Lii'ti lA'ti a f 3* * Cf VltO* ; . #* Ir tnt. n.' r * - -v.'* H im t r "*v *v*t t" ta* I V fC'4 nf 4--'* \-c; r 1 tf kao ,,4 p n t< niN.**ct*'*f * 0* ^Oytt'f fXTRUOCO ALUMINUM S4IHCHANNCL rod PLASTCd *e"<b * for <o*Kta<H trK t'atk t vs '5as r aster stop or *o j | cal t U nmwiding riMISH MOULDINGS Of *itrw4*4 atvrr<*iym k conwnodatl V>ArlOv*f^*r, awndet potrtiv* tal M clot*4 poufa* -'^PSBPPIWliPW ...... . LIA24617 mr* ---> Exclusive Sound Deadening Unaf CurtMion** new V|.23 nrvd VI.-2 folding dnr are covered wth an attractive 2* nt \ in>l co*trd fahnc on t.ftS dnit. Thii cmrtng i fire reMtanl and miJ*Ww froof. In back of the Cymric is art rt<Iume 7" o* W*d -filled vinyl with a fiber f!ai t>* king Thi* W.id -filled finer ha* unique deaden* ing profeM ie A tije i u<*d in the ronafructioft of pu*M i.gvr jet airrraft due In it a^i/d dtadeninf qualities Triple Seal Sound Sealing Channel A* illustrated, the Wad |<oet traling jamb fora* a triple sea! sound harrier when engaged with the sound sealing channel t*on rjl-d *t*H . ii|> are u mM t*. f.i*!rr the ja.mli pi*! tR a wall, r^*ir r. to lid*!- f jamh Wt-*" hr de*r i* * { Mir at either rr*| the fiv*-*l ) *it ! ed hv A k4'l J'*' kfi.-Wfl *9 a refi ll g ure | re | u? *> I ** take handle*, I V. * > 4- d I' k* a* eritfit'al fa* ? f v e*i.ifment of a* field iV-O.iInd aro .*4*ri Th*<r f*Mv afr m<if'.fr #*| '* high * ,o'*f.4f-lafr t< all i'r?*fi*.n dnr Uc to * 4* 11 t. ! I ?fr It tA N-\1 D<*a * 1 i t A'-.-** ervvf iv * 1 IVvP # ] 11 11 l/*v* iarV 'Nt 9+*l<ytt4 1 i t The average wooden door haa a dcibe4 rating of IK to 2*) tnrr 9 frequencies. while Curl'tion'* new "SOI ND lUVtDF.IT VL-23 and VL-2 hare an average ratmf of 23.fi ovrr 9 frequencies SOUND TRAN5Mt>:*ON LOSS USTfi - (ATTENUATIONS) - wtSURN 11CCTRO ACOUSTIC IAP0AT0*Y. INC-WAIT I960 FREQUENCISS 0>6 M S' UJN r--------- 175 250 350 500 700 1000 2000 4000 Averag* Average 12 *o SoO/ U'Ni Oso Ct.Oi iNtIoRO.Ct.?i * n j ,.?** . > ei mv n s> j*0<MNta(l NO LfO' * 1 Af.tH* iftfCM 18 5. 24 5 23 3 30 8 30.8 358 39.8 45.8 52 2 335 39.2 MAM U not v.Nt i-sjimvifH.Hor t'i(H CoriM tan* VRin SfXJNO CHANNti ANO OOR.il I AC t .ON l A1CM 18 5 190 15 8 23 8 23 3 273 31.3 42 8 49.7 280 33.0 MARK XX n oi c o*i a.Nca riut >*t ce titm aoUNoCHSNNU ANO OOUOiC AcUONkAVCH 190 18 0 11 3 11 8 118 163 22.3 353 38.7 20.3 22.7 Ooot Weigh*.' VI 3 - 4 25 lb* per *4 A. VI 4 0 tba. per tq H Not* w* gnu |>vn aUcm- tor attuctwrat aafety margm. ' AW1- n'MWumwe kj^ja \\ ij u i ~\r \V -9? nfMp.jM if JkMgJlRA<!? VWWTW ii I, J . Tti>v^rtiiifei ai^ira^iii aiiaLaBwi *wmm LIA24618 f ! - ^m i^y - h~i CURTIT10N SOUND DIVIDER SPECIFICATIONS GENERAL CuflKion Sound OvKJrf shell be furnished end installed by an authored representative of Cuclition Corporation. Sound Divider door* end pactions shad be top supported with out floor gu-de and shall be completely fabricated at ttie factory, including all hardware and track nwcessery for installation They shew be guaranteed for one yser agam * dctacts m materiel nd/or workmanship. STEEL FRAMEWORK The fust revstant alt steef fuM channel hinge tram# ihaN ba a mifumum of 11 g*<p# *rngc4 sha!! ret eaceed 3 S' apart on units T & and high** The aM steal fuH channel lunge tram# shall ba interlacing, collapsable. extensible providing t'we pantogiaph action Vertical \t~ start rods sh.tt eitend trom the top pw of fut channat h*nges through tha inter mediate channels to tha bottom row and that! ba weeded to aach other to form a complete integrated pantograph* frame that Wtl as st winding and Side sway tt shall hare an equal number f *o*ds on each s*de and e*f mac ha ism tor producing stability er^ pantogra(>h ect*on shall ba contained within the steel fiame The #a steel lead post shed be a minimum of 31 ,* by !** wide on ai doors above 9" 4* m height All stability shall ba dependant upon the door frame without employing stiffness of the covering and shah not have unsightly Susibary shields or covers Spacing linkage shah ba furnished on an units, regardless of nee. distributing the hinge load evenly, allowing a fyti fo*d to the vofutes *n H positions The lead post shaft remain at rigM angle to the track at a<> tmics Anchor yambs shad be secured with steel c*ps these chps shaft be attached without necessitating removal 0* covering i SoumJ Dnnder Vt ? Each funge shah be a true, full continuous channel design for entire w*dth of nine (9) inches The htnge snail not rem.n hat at any portion necessitating me use o< r.bs attempt ng to accompi.sh the strength achieved with full channel h.nge\ Ooors 8 0 and less in he<gM shaft n yf one (1) row. 2 channels at the top. to create a true panto graph* frame construction 'Ooors ever 8 O' high sha'i have two (?) rows of fufi channel hinges at me top Urged together *n such a manner as to form a sd*d v4 of fuit channel hinge construction g^ng mat.mum stren^rh and stat-iiy Sound Onder VI?3 Doors IS <F and less m he*gt>t shad have three (3) rows cf lw channel hinges at the top linked together -- %u< *> 4 manner as to form a *ofd unit of full channel hinge construction, g.vmg maimym strength and slibiitjr Ooors over |b CT high shall have three (3) rows of fuU channel h*nges at the top and two (?) rows ot fuM channel hinges at t** bottom Unked together m such a manner as to Icvm a solid unit of full cf.a-mei hinge construction giving mmmyn strength and stability COVERING r*e outer centering fabr* shaft be attached to the steel frame by snap fasteners through concealed nylon webbing. eiectron*afty *et sealed to the ms*de surface ot covering No stitching shaN appear on the face ot tha covering CONSTRUCTION *he covering theft be 1 i* drift fabric with virgin v>nyt coating f .n.shed faU* Shall have minimum standard weight of 18 2 or per square yard and 27 ounces per (meet yard. S4* wide, plus '.0% minus 5%. CHARACTERISTICS (a) Heliberty Coating shall not creek through to tha fabr* base her nposure to I?4 hours at 110 negraes f m a standard Atlas fadeometer. and there shaft be no stiffening or eppre c*able discolor tbon. (b) Resistance to Cold: MeteriaJ shed not crack through the fabric base whtn tested at tero degrees f in eccordanca with method described In the "Standard Tost Methods" Of tha Vinyl fabnc Institute (c) Abrasive RnitUnca: fabr* shelf not be abraded to the cloth surface after JO 000 cycles on a Taber Abreder ut*ng CS 10 wheels and 1.000 grams on aach arm. (tf) fWi Resistance: Coating than not crack or peel when wb reeled to 100.000 single hears on the Chrysler Type Machete trying afternata bias putts under toad. FLAME RESISTANCC AU COVERING MATERIALS. SEPARATELY AN0 IN COttfcNA TION, MUST TASS THE FOLLOWING FIRE CCfU-8: t New York Buerd ot Standards and Appeals 2. f v# Department. CRy ot Boston 3. Amer*an Society tor Testing Specification 0 S9 4. Federal &pec*hcebon CCC T 191b. Method MOl LABORATORY CERTIFICATION o n AU r*OPOH0 MATERIALS WITH r iw t c t t o a b o v e utrs s ma u b e ma d e a v a il a b l e o n REQUEST. TRACK A TR0LLET Tracks 1`vtt be extruded abmnvm and shad contorm to ait toest .0*0 tn* , >esi HEAVY DUTY and shaft be ot I beam construction mcorpor.-t-rg a special taper to give smooth operation and pro vent cha-.er-ng as shown m A f A catalog IbM. njAon bead double bjn beanng wheels with steal inner and outer race she* be a standard part ot this model. SUB-CHANNEL When requested for recessed track mstanation. subchannel to receive (rath. w<M be furnished Installation must be made by Others when installed in advance of door. HAR0WARC Sound Divider doors shatt be equipped with double action latch AM eiposed hardware to be satin tim*h. brass or chrome, as speci'led Push puli mds shall be furnished on a'l uMs 9 4* or hifw end/or ?* 0* m wdtn Ah doors and partitions shall f# fabr*a(ed to re<e<v complete mterchaneeabie key lock uruts. wh*h erf adaptJto* to standard building master keying systems, an of wh*h shaM he an miegiat pad c-f the door or padibon Schtage No 2374 w*th ta/y cam actron shaft ba used SOUNO CONTROL UNERS These tmers (appled under covering both vdes of the frame) Shaft be 70 or lead f><ied vugm v<nyt wdh 030 g'ass base These hners shall conta<n no paper or pape* produ<ts and Shall be 9 continuous d-jpr iacm of a l>mp mass to triform to the steel frame m such a manner so as not to hamper the appearance or operation The v-und control linns shall be such that the dimen %*)nj| stability of the glass base fabr*. resisting the shrinkage, creates a stressed h>gh density membrane tor controlling sound energy tfx v>und liner %ha>i conform to the requirement for permanent flame resistance as stipulated m Federcl Specit*aton CCC 191b. Method *90? Laboratory cer1f-.<et>n of ttus test Shall be made available on .request. SEALING A polyurethane foam gasket wh<h provides a "Three point'4 tight seal between two doors or single ooor end jamb shall bo an. mtec'ji pa'1 of this sound channel Sweep stfps of ftenbie neocene shaM be used to dose alt c*ev*es at top end bottom and both sn$es ot the door P\est<ity of these sweep stops shall allow a># to dissipate evenly throughout the entire width of The door, top and bottom, and not be dependent on holes at the lead post Improved design and construction changes may be made wrthosR not*e e : . CORPORATION 1210 CHADRON AVENUE. HAWTHOONC. CALIFORNIA SPring M4tl ~*W' '-W> ^YJRT t **AtdtottdMtoaa8>>8i*ii <w*i n m * * -- f LIA24619 t\nM iim (' *&/'If ] I niWiJii miHnf>' ~i iri II m InifMtfi fir- -v ft! ? f LeadX ACOUSTICAL CURTAINS ELECTRIC VERTICAL OPERATION WITH Chalk Panels - provides Acoustical Privacy for Team Teaching * ...... ........... jwipw.nu i.u. j N 1731.02 ~ewywusi /* L IA24620 ---* - -: ~nt r-,'iiix^---ir-i-*:^-~-irr-^~l-----------.^..------ LendX ACOUSTICAL CURTAINS o " L*dX Arouitiral Curumi rtpmmt a irvolulionary advancrmrot n achool petitioning. ^ Thry combuw vuual arp^ation and afouitic privacy for modem day team teaching ' Thewr electrically opvrntvd curuini are an eaclutive formulation of vinyl and lead, avnbody j ing the nrentiali of tound control, namely freater might per aquar* foot and greater density. Other mat mail take up to thirty times the thidrnets of LesdX acoustical eonatruction to ; provide the same sound privacy. LesdX Acoustical Curtains are Itouted m sound-proof ceiling enclosures with gasketed, , vertical side guides. They are raised and lowered electrically. Completely out of the way and out of tight, they allow an unbroken eipantc of Urge ftfaft for mau ttudent lecturing yet are lowered in tecondt by the touch of a twitch to divide tbit - tame area into two. thf*e, four or more separate room* for team teaching. Once in place, the ** thick UadX Acoustics) Curtain* with ihrtr chalk panel*, their physical and tound | - privacy offer advantages that cannot be found in a tut inch cinder block wall Although LeadX Acoustical Curtains for school partitioning are completely new. the con* i struct ion properties and unusual feature* of LeadX have been thoroughly proven m actual ; u k . For more than tiv*. years t have manufactured LeadX m rolled sheeting for use at radiation protective aprons for personal protection and into other products for medical and industrial use. Today. LeadX is employed in hospitals, laboratories and industrial plants ^ throughout the world. 5 1 1 Outstanding Feature*; e Allows assembly room or large areas to be instantly divided into separate room* for team teaching. Provides privacy and isolates sound. AvaitabW with chalk panels and chalk pockets. Electrically operated. Appears and disappears aa required, in seconds J No floor track. j i "7 The nrmar) *>>und'pru<d>nf qualities of ueight per square foot and density, plus handling J friibilily are proMOed in LeadX Anuiliral Curtains by the formulation of vinyl and lead These * materials provide a "limp' mn wall iA iiirr^th yet the '* thicknesa is thin ervyugh to be auto* 1 mstically rolled into a small enclosure. 'j When ml in use the It'p roller mechanism <*f LeadX Acoustical Curtains are bsused is mlmg i enclosures. When m this position they take >nty 18 inches of space, regardless of height or length. ' \ The top roller mechanism cun be placed above suspended ceiling showing only a thin slot la ceiling Test* by RivertMfik Acoustical Laburehtfiet to ASTM E-V0-6JT show J lb LeadX gives 9 frequency transmission Ui average of }2 db and a sound transmission Hats of Id. ' ' The lesser weight of LeadX Acoustical Curtain* over conventional wall* assure substantial < savings. * Can be installed in present buildings. - " Can be installed by maintenance men. ; Safety facto*: curtain operates only when key switch It held The flat surface is usable as a projection screen. NOTI- We o>* <e*i*e*Hy tofMevotg ev pedvch CoAusveMiy there a#y be slight dtot>ani beat the dewing* end %pe<d><oi<ni shewn h*t*n. We reserve the SgM te supply equer**ai ef aw steado**,' <sn*wcr*en et hate el aider TW seesaw, r-g DATA SHEET -.Tr-*-'**' n-600* LunclX ACOUSTICAL CURTAIN HOT-' Writs for detailed drawinf*. Entire o< curtain tncludinc roll-up machamam, motor, trim, etc, can ba calculatad at S lb*, per aquare loot It k eaaentul Itut round turner above curtain be equal to LaadX Acoustical Curtain used. LIA2A621 Floor Slab, I 5r#el Support to ICCOIUC^IH wri/tht of comptetr partitloo '~lA(Pf othora) _ ^LEADX applied ai aound barrier (Optional) - ut'`*1 j K Vuyi Pm iure Seals Tall "A - A" --i f----------------JAMB DETAIL l . ! ELEVATION SECTION ^nyiwr-p r. t L IA2<*6 22 ? rM fraWiStnaitftwi irgmn..i Wi.rr.i Aau SPECIFICATIONS A. OatCriptidH A1 Cfh (Mililioti 1K1II ruil of ap autiimalH' flMlfifally operated i<>|| up curtain The curtain malmal *hl| be Acourtu l LeadX wr.^hini nut ln (Kafi J Itn per iq It. A 2 An u*t>..d ti >dX tlutll U' ivcuiflv ntounlcd on a one p>re *r.*n<l** tUc-l Yibul.it roller il tuftu lent rlixmrtrf and wall Ih.knr** I-- jnrient eicevtive dc fleet i<vn At least two lull turn* <>f the attachment material thall remain on the roller Pin <*-.n m*ch*rud gudgeon* thall hr *e<urrd mt* tut*r rw1* w*ih ratrntion shaft* to (ntuf eml beating* End tw-Ming* shall be bull bearing aril aligning. |nnui. ivje flanged cartridge* which tn turn %hj1l l b'lird to *`.re' end tearing platen. At drive end. vhaft *h*ll U- keyed and a coupling thall be provrded to connect the *h*lt of the tube roller to the output Uuft i'l the ffdfleal nvike The coupling dull be of high grade l<>* c*itt*n content tirel with bim/f ml im pregnaled invert between .ne f.in to provide quiet fle*o btr oprfatron A3 The gear head motor thall be a right angle combination d>*uhle reduction tvnrrograi unit with atbeaio* protected *vH<r, and *r* p*ece lull brant g mounted motor worm gear vhaft D'lf tijir magnetic brake vhali be integrally m<>gnted Gear head mY<e th<.`.< have vgffiomt h*c*epower and torque w*th IS', service faci<< ffc.nke thall mvtant flopping of curtain travel. Total up or 4'n ttasel vhali take approximately 0 uondi for an pemng 10-0' high. A4 Alt electrical control* xhall br furnivhed complete tuch a* reverting starter* mth overload protection. limit wtchr* t<g and bottom in each guide, coniacl.icv kev control switches, etc ready tr interconnecting wiring b> other*. Power connection shall be furnished for iOA 270 V. 3 pha*e. 60 cycle. AS. LeadX panel* *hall be selected from manufacturer' standard Cnlofv m-itt finish. and dall heve vertical joint* 36* to Ik ir center LeadX *h*l| rvt support combus tion Jmntv shall hate LeadX laminated cover itrtpt 3* wide on each vide and such a.*ight that at no area in the ervlite curtain will the weigh' be leva than 3 lb*, per tq ft. The b -t1<*m edge **/ the curtain %hat! have a *epa late formed kaip of 3 Lh LeadX continuum between the guide* Thi* p *h.<11 he filled with a compenwtmg continuous weight to give bearing on the floor. Tv weight khali br self compensating for variation in floor Ime but shall he rigid lateralis No floor track t* per mitted At the head the LeadX curiam tltall have po* mary hearing m a deflection relieving continuous idler tube roller with intermediate bearing* before it n en gaged on the dr<\en roller tube Curtain xhall eatend 4* into each vide guide and vhali be friction retained by cur.tmuouv .opposing nnvt coveted polyurethane Com* prevHin teal*. one on each intide face of eecb vide guide. A6. Woderk vhali be furmvhrd cienplete fie tide jamb* and guide*, he * t rr>d panel partit..>n under rTvitor opera* t'r, ofMuatof enchnute and incidental trim to finish the opening between wall* and undertide of tfrurtural beam tn finish mling tine a* the cate may b. Wu<dwork shall be tended smooth to receive paint finish A7. WiHafwork framing the opening shall be lined wirh LeadX of weight to that the total barrier it at leatl at good in wound transmission kwtai the LeadX curtain. AH All tfrurtural fiammg bracket*, dipt, (foundt, etc. that! be furmvhrd be proper support of the unit and lot mounting the wi*<dwi*tk. A 8.Hind 1tanwm<.u4i l.,,. fnr lh LradX |aant 4u D b* at followt: Tint f*s4*rt4 ky rrtfktak kmlKil UktnUnci to MTU (Mil f. kiNf fro'jfkcr Avtiua u s o u n o luxskuss'Ok c ias s u Ctt \t> Vi 7S0 3S0 WO 700 1000 7000 4000 01!iaevm<uioa (nr 1 41f* 76 ? JO ? a A10 Pftiti.r *hatt he Tiejmen TT WO a* t< itiuftdurrd and installed by Tmjr*en. Inr4 209 ^ S It Street. ISoviklvn 32. New York. B. Uboi *nd M4t*riH by Othtf Tradot Bl. Punching of bole* in overhead tupporttng ttee( or fur* mthing and letting of invert* in tuppottmg masonry Torjeven wilt provide template fur fattening localmo*. B2. All elrrtrical wiring including rough bote*, conduit, prwef outlet, wire. etc. BJ Painting and flnithmg of woodwrrb by other*. . Shad Orawinn Cl. Submit th>ip drawnngt for *\ prova' thow-ing all detail* and Connediont tc other work, including complete elec* tncal miring diagram* 0. Workmanship and InsUftatioii D1. All wotkmanvhip thall le the best of itt respective kind. D2. ImtatLitMin thall be made by tkilled mechamct M ac cordance with manufacturer t instruct Mint a* approved by the Architect. Dl. The msnufadurer thall guarantee the matrnal* and workmanship for pen-id -l one year 0 e-.wr via r/n/n*