Document 5kxp19X0V50aw5qgzyGjxavZ4

o LEAD INDUSTRIES ASSOCIATION 1I MADIION AVINUI n c w vo*c ir. n . v. July 5, 1961 SUBJECT: ICTHIB To tieobcrs of the lead Industrie* Association: Attached are three reprint* dealing with lead vhlch recently appeared In various trade publications. We hope that. In ad dition to being of general Interest to you, they cay suggest tone applications of lead In your ovn operation*. The > '-1 Industries Association vaa pleased to have been if assistance in gathering oaterlal for these artlclea and thel' preparation or placeeant. Very truly yours. RLZ:JHH Att. Secretary o rjV5 LIA24547 \ i A New Look at LEAD Market expansion efforts aro extending uses for this familiar metal into increasingly diverse fields By $tant*a 9, NkSanaa f S\* lt|\\ KI MM | ..\vf sHlUfWS nevt to `U\l .. n ;tjy ;1.ru* j >kwfjjvr. Nil s:. f^'-: r u k 's .* ocn Ihe huiUhn *- \ Svf * ' N '( Iv^iflls II JipfVf *t. U - s j /e TfK\ ./v *!.-v f pu.tips .nil m *mdi tunt* p'-.i. ; r^i\ f he IK'S . tftnf` n-,,.-V'ltl.i i( p|j\i. . uj rvi.l. .%ah ' vuftim.' iix NcftKjl line* .jv I'cfe in r.s }..'r".H frs*r.i hurv rt.i*June\. itjiN tnj u^'civ'^vc ft>m diAUNs4.>ns. M.w'i :V N ,iuf\ jfid i^uect t irkklfffl Lftwe * ' * r ' .< js v ;M.<* N\ lUX' ItCW JllJ C%* . t df % Wad. fhe k.i>flNifuctHict * .1 rvJu*ifjcN arc applying rt with particu d-\u- tty drawing ijxn lead companies' adrmt- k * m <Wvs*Ufitf oew markets (or the age-sdd -Ktjl Other ftveirt jppiK.iin^ range iu*n eWsinHiKs a .1 nuvlcjr fis'KHl ft klKPIK d pf\C"-mr ft n\- poriation. pfea. ;tn uytnimsnr* id fuel* )\ r p*Unhals (if h id J l.frt \*cy *ti`HI .* !, * hundnd ,n, ,njs .lit ; m,| i,h i u v i. t.vnts ( V s .o ' ik t i c,f <t\ j ic N i . Ljr> <k J out hi .ppkmcnl fa iiili.if fi*k4s ltf IN* mct.il. o k lusting ib*< in.W*r competitive ptcvNUtes (com <hcr .njU -tiU. | if<4 used by prchistoiH * k 'J ha* become ivlt known.in m**c u\w ii.< . Kvnusc id its css^nti?1 applications in n* `'vys iHMXtKidcx. paints, building and plumhit*.' \ur plt\ WmI. .mimimltsKi, ck\|fkj| s \nIv h n .tK* , .n I in i'" 1 'll! j k.tiKiy ol sHhcr p i*h Ik In i fx .tvl x .. .nduNtfKA\(NcnJ upMi W *! c I. n > \ i !*. r S hulk Un,il *C> W ( k.td ifC sdun , kftK i.-K, nvpKUsKis In o*n'tfixlts^. !sf c^-ftn pk*. pud's \4 kud .md ustvsto* Niwccn bed rKk und t;V sd new 'k\to.fsjKr\ vlimm^fc siNjts'n Xstin-y is `ht\k jl>xfNcfv these pJs pfckcfrt NttUvlurd djci-tye *< nrK-s i/wc U tetunts td hutW*n%:> idjsnntf'.' t i-ltt'i.N of N^. highways -ti jl.' m lfW*N -<r\iCC *'- vh<ncf> i*n .<?' ud 'M^t . ( ^.s^v Ihc lar yd *n.J tr. < .. ntpkA fi- .ndatM-fl pf* ect c%cf aii. .'ij'tcd m\d\mg k.id *s for iN Pan Am Huiklmg. rv^ under stfis*ttKlK*! n New Y*ck Its underpinning intcf'fvrsc j nc^woil ! O' tfa.i fei'dme .ntit (ifand Central Terminal, tnd wdl . ; a riK-re <V>*r vpace thoMi any rther ' *f\#s t*4lC i'\f built PrtvtftH leckt At Nuyatj I >U, wN-e IN Ijrci *t hxdrtvlcetrie development d it*, kind wa> unjW?el fNs wm ter, the OKi.il in fK'lpsng to utvurc uninterrupted o |m.i'm'> V\x *n .1 Jcvid prevent Jcjk* hetwecii iivu\ v , . atui the lMnda(K<t\ 4 huge . ;iWiy:> .nd siHiJuits supplying water to tuiNnc /CtH'iati<TV MM.t'u.ti it has been an ewntml ingrediemt ol uni- f*r psns '!.%. lead Is winning new burcls i making n '<<: Jur ihte suflas.es piHsibV. Recent 1 im * m the vhsnwsirv M km>tem(<ralur< Ifpt.'Urd fa (rod Aw*'.-oi<y. 29. w.,.(.,vi Aet.-^^ Nw YtxV \ f. N. t. t, -i HHfl NEWS Mofch April 1*61, p\,b;-h<*d by (*Hyl C^P^Ot*on, New York, N. Y. wp i I N 1722.01 LIA 24548 porvctam enamel* containtnp lead mean tlui cokw can no* be tupcrinipoyrd permanently on con struction mcUh. Panel* <4 pouclun enameled aluminum on the (7u'< Manhattan Bank* nc* headquarter*in the Nc* York financial diMtKt arc noteworthy cum* pic* of ho* lead * nntubu(inj! dramatic colof relief to *kv*craf\*fv Srmiljf prtterc** *ith \ it ram* enamel* for u%c in yla>* i* roultmj: in more ap plication* i4 cohncd vtiiKiaial yLo* *heetv Other nc* unt(but**n% *4 lead to the feU (4 col*< irvhiik the (Yurlc'ccr^e 4 <me aj|<KmSrle (>nidKa .tiJ plivlK **-a! vi-uu and pipnented kad yl.i/itu* n hkk^ nvj til. >. p>my th^m *avb^Me Mutj.vx 1 jv niatHtitle jit: Ktoe hu.*v One *t t;w :i*M pneiijvm,; ire* fvtcntial* fr< it'v k d .i\ the H'n'irix!w*n nd building 6cki* l' ill I I i!m'IU' un*.Wn;.v- dcvdvh ctfatoch mder ..me omdit;.-n> <*d\ thm shed* afv . p : . ,'fli ,H P*de:fd ' ) s- J *;tb i 't..% md text k* rebud* - ti.-c o v n.*'.- , that \u*h material* oe V`! \*r < 'vne f' -A * <!;. t>lcr% mJ fv* pl.OtV* \0\ i . ^ . :'.ilj% ,*:<; rmjO be ' \ .i k.,4 ' 4(H' .i<-ur-J abv. itv^t fp f leod * -v*d m po'v ' 5 i o'1 d p'^ <'t ^ th of ih* Choii ` `a- .Mon #o<'% --,..a a-*d .it '."! i?0v- iui'v i c<d V.Tif I*t `t P-. i A/w S*jiid><>J .rt N*.* Yo<^ City 0 'jip* iin* i-'e w c v w- mmm ''W* L IA24549 agents like glasv wool multiplier icvidance to the mml penetrating commotion. In a more run cl way, Wad and sound are partiter* in the new field id applied ultrasonic*. They work together in cleaning complicated parts macccsviMe area* and delicate instrument*. Invalu able to certain industries uHra`onie mvoho the application id inaudible sound waves of high fre quence. Barrages of thc^ w j v c s literally Wad of! dul. grease, msotubW solid* and comammunts once dt!!kult ir imposMbW to remove. Sound Bombardment Cleansing .iVc' | !.ivC in a tant if soapy water, solvent or pickKnc hith where aitkWsto he ticM- cd are immersed and sub Kstl to 4 hf K'f hut in- tense m i.nj h,,iihn.|imni t lii j m'o k po*>.r units uhli/mg. Wad \ ' ' t'c .ire ideal for tht* prv.C" K.-. .. * hsf.uliuy jnd e*t\ ic Y - I 1 equipment. I. I . Yn, H.oO.kC ,<t a i- r' ) ' ` ,i! i \ 0 ' i > d ^ ` ir.i lvnV> | iu ` . i W t ' it ' ' cost* are Wav because line power h not needed. fhe corrosion of steel cipo-ed to tak water is now being combatted effectively and econom ically woh Wad as a wcapi>n. Impressed cuncrtt systems using anode* of Wad alloyed with and xUer. wltcfl installed on umWiwater surface* ,nd charged devtikally. confine corrosion to the amnWs iml keep it from atlas king vied surface*. Some `hit's including od tankers are finding rs.{ this pfvKi\t*n ia no< <nJy valuuhW. but also th t Wad aninWv last almost indefinitely. Steel I'k'is, Nidges (fumes breakwater* .,d other drue* tuies exposed to salt water ^u!imtosly art* using lead anode systems to pasikutjf advantage. Busy at dock* ^nd .ohorc. the fated mieiux trucks inj f.vk ` tls ate driven by ides toots from unproved i id -.d hiiicfiev Some mduvtnal lift* cods u'i\ K-.it' up to MVt*<) fxkinds. Other* v i J *..... il terms vourts and as cWdnc cad 's ' c`-,f sourvev SmalWr v c t vw w j a of today'* ts.Uet batteries, d proAiJc jvwcf fi* the i- 'o*i eWv^A-.l sy-tanu .*f nws| v4is In j iv idjli'nhip> *th jutom.-r.ve tf.in*po<1, in <* Ym J Viwilinucs v plav < \ J toinipritAn; s *ne -j i.f^s H*vs<i| thangv*s <n ti-c ss4upikrtaa d jnr.kn-kl soiip'unds, mtro- J t C-" I ]T '^f.jvrr $X . 11 V -,K U. *.eod iirco^nt* M'j-kit* po<T*f uni contnbvm to ultraton': iltonvn^. ^**1 rui. ' -^ivry-1-~ -*tiT rr^TM-"' -^i- ftano psaiMr t'^siy freedom from ngio# noitea hn rnbim gr vmwtotad wirh couod absorbent Itoi *--** - -?* - ' LIA 2455 0 iit. -I h\ I tti> 1 Coij'ui aic nlnbuliiv t<> iJw w< f nuMkrtn fin' j h -.I cnemo \n* kfUKk tontfouruK jrc h \* :ul ;* to Oor.iiv J'l \CTU'\ *\ the l-lf -.t*ftMinkf\ . ' i>K t.lilts* k ul iftrjcilt)! k.M the *>nlv Jiinc irk >* * <( antiVm\k aJtld.ux i < j.i'whrK'. <il #S-1iKT|N ti*b> KjXi J *.K.;VC , ( ' kil MMIJVUmU I hev |'f.*vJiiet\ it;tit.i,ii titt er HI. K*U.jnvth\l k J *r j vi"!' iufh*o if katl 'V>lv Ah.orbt Harmful Rayi <M i t t ` i/m.x.ji- .inJ uukootv* lor k;>if> u* -'c, no'\ i vv ! ' il* v ntfiKit 'ft* jn put* ,; tin t.-nt to i I k , I -* '`its -tb*'; ' !u;: if ' IS'" .- o I't .r*vj\'sihk' ' : J rv' . .. * . <1 I .-JlK* Ihii ,-v |H i> U`,\J v 1 niic 1 St.i\ t U' .iJ Tv > r*t *hip. t:-.e V > ^ 4 1 \c -r, J r .. >.J the *.a k* I* V.s\ - '4 fifKv *x nvki .< *H* /* ' ! . .! t`f (Ik u-v *<. ; : I . *1.1 f li .'I It. *:* ` the xt!. - ' : ,-n .* N'l.; . V- * . -( * ! * ` i ; ; . \ -o ` 1 ` -'' v w v. -1 -t 1 v *U1 ,*J\ -rtx . ; -, ,r - ^ I x \ <K * U-x !i - : ` - uj j-f .vs .t . .i.nd Js . -'v. . ' .t .tih's |!h pf>nt It* .i i k J . c i > u'" i *x ">0 O'*c 'o^ J: `*V0 ..ct'*1,-' oJ r';j O"! -etc* ` ,xi o I* v?i'<*m4 i M.ptw l-vj Xy\t t , *** }^, 1 f*d f S A. ** LIA2A551 i nne r-1ni^nr*--- - *----- ' *' ^ mm**. ,- Subctructur* column* bring rialU4 cm fttl~wbrtie* pod*. Ways to Reduce Press Vibration o EWSPAPER PRESS cylr i . N rotating at ,,-f *b?ut sX) revolutions prr n..nu'r. together with cutting folder* ahc.se cut* pound action slur* through the th:ckr.oa of each pzj'.ng nears- paper-transmit \ibrat*ons through preM >ub5trwcturc column supports, down into the foundation, up through the build.ng columns and girdrn. and on u.'o offices and other treat of new* paper printing operations V.Lrat.<m mu*t be controlled, if not for ? urtural reasons, then to irtren tV shock waves which can cause personnel fatigue. The amount of vibration trans mitted by preitcs hinges on l. The absorption ability of the building's natural foundation 1 Site and number of presses In operation 1. Smoothness of operation of the units (newer units produce less vi bration* 4. Frequency of vibration. One of the most effective and feasible ways to lrseti structural vibrations, according to authorities, is to isolate the press-supporting substructure columns from the foundation with a vibration-ab'orb- mg material Tests conducted by Columbia University have shown that a combination of lead and as* bettoa is the most effective material for preventing vibration transmis sion. The studies disclosed that lead, a soft metal, has excellent vi bration-absorption qualities, and can sustain heavy loads and pound ing Further, the studies reported, it offers ude-benefits in being highly re<iiunt to common and imperv- tows to *al**r C n l med a ith chrm- leal resistant, fibrous ast<*to--also an excellent absorber of vibration-- Columbia University found that lead has damping characteristics superior tn any other single material tested. One ind <.ai r,n of the durability vf iead-aibe*!n* pads came recently, a^oroeg tn |.ed industries Asso ciation. Nrvr York C.ty When aa old hotel was demolished lad year to make ay for a new building, lead asbestos pa ls -nulled beneath Hi foundation more than 40 yean ago were fo'ind to be in perfect condition. Introduced many yean ago, lead- asbeatos pads today are employed in a variety of vibration-producing situations. For example, they arc used to dampen vibrations under a massive cooling tower above a New York City skyscraper, and to pro tect instruments housed la the Bell Telephone Laboratories building, through vrhuh rumbling trains pais daily. Willism Ginsberg Associates, ar chitects and engineer*. New York City, who specialize in the design of newspaper and other printing plants, has designed and specified lhe>e lead and asbestos isolation pads on many of the projects de signed by its office. A partial list ing of the plants where they have ued lead and asbestos pads In order to dampen the vibrations from presses include: Akron Brecon Jour nal, IWion Herald Traveler, Buf falo Evening ,NVtcs, New Britain Herald. Philadelphia Bulletin, De troit Free Press, Portland Oregon ian, Portland Journal, Albany Ttmei Union, Harrisburg Patriot Newt, New York World Telegram & Sun, Staten Island Advance, Watertown Daily Titr.if. Hartford C^urant. Dallas SriPt. Fort Worth Sic Tele y*rtm, and other* Tor newspaper press isolation work, leid-Afhcstos pads are con structed in sandwich form, with two outer lay era of lead, two Inner layers of asbestos, and a center steel plate to keep the sandwich stiff. After the layers are assem bled in order, the pads then art compretvd at 200 pounds per square inch and scaled on all sides with lead while compressed. The finish ed pads for newspaper press instal lations usually measure about 1H Inch thick, and 24 to l feet in length and width. However, other thicknesses and sizes are manufac tured ar.d used to help solve other vibration problems. In installing pads In news plant* the lead-asbestos pads are installed under each column support.ng a press unit or a folder. Where presses are powered by a group drive motor, rather than by indi vidual motors for each unit, the motor is supported by separate sub structure columns, which also are isolated by pads. As an additional anti-vibration measure, the following is done: First, an expansion material (as phalt-impregnated isolation board) is installed along the sides of the rectangular welt in which the preea columns mt After the press la erected and levried. the well i* filled with concrete up to floor level. When the concrete has hardened, the isolation material-- which also acts as an expansion joint--serves to isolate the press columns from the aidea of the well, and attenu ates excess vibrations transmitted from the preta In eases where the pres* oper ating platforms are aecured to plant walls, smalt lead-asbestoe pads are placed directly under the steel bc*mt iupp-irtir.g *h<>e platforms. Thu measure also helps substan tially to reduce vibration flow through the walla. ** f'OT" Ml%4KATiOH MANAOUUNf *#*0. IHt f lUO (WOUtTlift ASSOCIATION, HI Modhaa At***, Hew T**4 17. N . . v j w .'.ij w Plinth w U s A ; 1722. * 1pp<w 1.IA24552 tiabh Quiet Please.. .Quiet Pleases "Silence may be golden, but lead looks Idee the beat practical material to confine noise." : OW valuable U quiet? H Though there arc few in* stances a here a firm dollar* arvd-cenU an*mcr to thi question it available, there t* no doubt that the noisy plant or office or hotrf room haa a nuisance value. Often that nuisance produces fatigue ar.d irritation lrad;ng to errors. People prefer a quiet place to work. And. by and Urge, people do a better job * hen they have a quiet to mork per tquare foot, the greater the isolation or transmission loss given by the partition material. Llmpoet* -The acoustical effi ciency of an> material as a Sound isolator dejirnds not onl) on its Slight but n its ``letvling stiff ness.* It a partition is *t`ff enough it (an actually her much of the adv antage it gains b) Is-ingheavv Thi* havens liecause the stiffness 4 a jurtnon incrruws much nwee sound is gruming kinder. ft in cludes surfacing materials, acousti 'I cal tile and (ibtstics. mrxablr |*artitions arvl door t\prs. There are special budding techniques, too, for laminating material*, for pan els, doors, sails, and ceiling In a item 12-page engineering WEIGHT BLOCKS SOWD reject on sound furriers, the Lead Industries Association points out Because me cannot do mithoul the equipment which causes noise, offtee*, schools and factories must lie designed to minimize its effect, and at me surround ourselves mith more mechanical aids, the noise re duction problem U*omes more important Tmn noise reduction problems are involved Tin* first is the pre vention nr minmr'ing of sound reflection the use of draprries, carjiet, of acnusiual tiles are ex ample' fhr second, reduction of sound transmission, has rehed on * -'truiti' n .ml ` mill* to o-nhne sources ol noie. that it is important to discern be tween materials that st*p sou ad transmiwu'Hi sod those shich 1) prevent sound reflection. A room finished in aomstic tile, he evarnfde, seems less noi*> be ta iv sounds originating in it are not reflected lack to a listener in the ft*-in A noisy conversation next ds<. however, ma> pcive t/afe the tile And noises from the tiled room leak out to adj<nmng rooms. Basics for Sound Control fo M-ck this sat ot "leakage/* (h< K>\*. thr (ur til ton or soui.d h.ni-r must have tmo bey LIMP WEIGHT S>SVE$ SPACE rapull) than its meight as its thKbnr^s it increased It is high meight plus low rigxlit), the Association (mints out. that gives good sound isola tion. .vlence tray I-e golden. but lead look* like the lr*t practical ma terial to ci.nfine noises, according to the in*1**- Because it it heavy md limn, it shoms the highest ' quieting** performance of any common Luiklin/ material. Lead "Wallpaper** The list of oca materials and ,/ii-jKftus: Man) ex-sting problems of noise architectural jiroducts to block Weight 1 h; grv itif the eight ir.inMnisMt-n may lie remedied if N 1722.03 '!u mm, yyi.'M1 .^e w w j 1 u *u h qgm muff LIA24553 . artm <rji VTSIC'- I.M| rVwWM i^ mail the weight of the wall ts significantly increased without increasing it* stiffness wgnihcjntJy Since the weight erf many tvpical parti* ttoni o h j W W doubH !)' the Addition erf a Lt)cr of lead a* thin am 1 $ inch on each aide, few modifica tion* have to he made in the con*4ruction to significantly increaie the acoustical isolation p-ovided. i/aH doth simitar to Waded vinvf* alreadv in |Wt*1uctHn might atw tie u*ol in a w allj^afw^r hie (ashmet Door Lining* There tr \ W fnnidrfjt'W a|>* {4tatwjfi >n m|*m>Mg d> Adiutlk t-AAlh*\ rf 1*4'* \p> (eoMfvutrh I ' 16-inch-thick Wad *h-e t* with A ikftiutivt wood vrfw itrd to me face of the hret a-d 4 irnaurr-rntilivr adUmm.Onl to the face can ea*dv lx a*kWd to we or t*lh l.uiw <rf d*e* where high aoHivlrf ua4.it.)xv thr<miklti the1<if* i* rr j u mI I i|iirjl lightweight panel dom can le umvetlnl into <4 h kht aowiatM s4ation and nh !-<.i doah <**! ajifjearance bv cement mg Wad *hcrt and trim ming the edge* Machinery Lartosurws |ead l^muutnl to fairly thin heel* of material* *urh a* alumi* num can be into marhinny enclosures fuc pietrstd e|uip* ment. Such a Ci*o*Uu<tHn ha* the advantage of higher transmission Iu m and considerable damping, while the exterior material pro vides a hard, dean, working sur face. A Waded fabric at-d pressuresensitive adhesive or Mm;4y thin Wad foil with pressure wtiniive adhesive ha* consider a Mr apfrfiration both in the fabrication of new machinery eoHnvjre* and in irajxovtng the cou*t*;d |ex|irttvc* of existing enclosure*. Li*4<Bd4 Acoustic Ttt* One of the major problems now facing the manufacturers of tan<lrd acoustical tiW is that the tow weight and porosity of most elec tive sound aftsnrbing mater ul permit* the transmission of sound. Several manufacturers have be gun adding livers of ofvi'jue futnt * |ktj<rf of even sheet nv t.d to the luck surface* of amustk tiW, thbers have tmabhrd the ingrrdi- ents from which the tiles are made lo render the liack surface nwe airtight, providing higher Iran** mission toss. The application of very thin Wad fix! to the Imc V of standard acoustic tile should prove acou*ticall> effec tive and petmit \ arums decorative pattcriud tiWs with or without the required transroi**k>n to* Specific Panel Material Hv t-l'i'!\ feW,ting the R,avi mum *< flnr* cr-mpitihlr wth the rejuurmiM f< Uea, a laminated Wad {*aftkun can be acomticdlv taikxrd to w4ve many sjx't itav p: 4-1em Sw<-h a parti- iKm. shuh might h.ive crmsick-f- alrfe .ijijrfHatiou n the held <4 movable ofTke jMrtituN.*, w ih j UJ lie CMutructcd <4 a I lfc mch-th*ck W.id -Sect bonded Ixtwreu two iiuh la> it s of i^wnd. The rcf*xt from which the above information *rd suggestion* are taken istuwd on research bv Bolt, Beranek and Newman, acoustical consultant*. and is issued hv. the I .rad Industries Association. 7^2 Madison Avenue. New York 17, N. Y. Copies are availatrfe from the As*or io free of charge. tapriaM torn - April 1961 PriMsg !a IK U IA far lewd (sdvstrWs Aiik MIa