Document 6wZOznKN7V6w0n2zB8mvrZnz9

ACID BATH FOR A TOUGH NEW PLASTIC . . .Page Two ui.MT.otr. w h y Dry Acid Cleaners are gaining favor for cleaning equipment v Safer, easy to handle NEW sulfamic acid-based cleaners are supplied in light, disposable cartons. They're stored and handled dry ... no spillage or breakage worries. v No hazardous fumes NEW dry acid compounds are measured, mixed with water for use. These cleaners are nonfuming, produce no corrosive gases . . . dry oHn solution. v' Low storage costs NEW dry acid cleaners are concentrated, require less storage space. One 100-lb. drum occupies only 1.9 cu. ft.--more than equivalent to a 192-lb. carboy of 18 Be' HCI, which occupies 5.6 cu. ft. DRY ACID CLEANERS BASED ON DU PONT SUL FAMIC ACID offer important features that recom mend them for industrial equipment cleaning: V Safer to handle %/ Easy to use V No hazardous fumes \/ Powerful descaling action V Less corrosive V Lower handling and shipping costs V Economical storage. Sulfamic-based cleaners are ideal for removing hard-water scale and other mineral deposits from such equipment as V Steam boilers V Condensers Please send me: Free booklet about dry acid cleaners based on Du Pont Sulfamic Acid Names of formulators who offer these cleaning com pounds E. I. du Pont de Nemours & Co. (Inc.) Grasselli Chemicals Dept.. Rm. N-2543DP Wilmington 98, Delaware Name Firn Title Address City State V Heat exchangers V Piping V Air-conditioning cooling towers \/ Ice-making machines V Bottle washing machines V Sea-water distillation units y/ Butterworth heaters V Food-processing vessels V Gelatin evaporators V Milk evaporators and pasteurizers. We'll gladly send you additional information about sulfamic-based cleaners, including names of companies who offer these products and provide technical service for users. Just mail us the coupon. SUILFAMIC ACID E. I. du Pont de Nemours & Co. (Inc.) Grasselli Chemicals Dept., Rm. N-2543DP, Wilmington 98, Delaware (OTPONJ) BETTER THINGS FOR BETTER LIVING...THROUGH CHEMISTRY JUNE JULY (9S9 VOL. 53 NO 3 A POLITICAL, ROLE FOR BUSINESSMEN Sjmikitu> hi the North ('urotinu Citi:eus Assuci/tl ion recently. tin Pont l'resilient ('rtiieford i I. (irenwiml! so id in pari: Ljnhn Adams envisioned a l): 1 lance of power aw the most, elf'eclive way in which the dissimilar inlcrests of a democracy could he compromised ... 11 a balance is jo he preserved, the views of all parl ies should be heard and considered. Yel business, in an era fen In red by shrill cries, has all too often pleaded its ease in whispers . . . "Business haw not been active enough in its own behalf. I lad ilie privilege of a hearing 1 icon removed bv law. flic injustice would have been decried as an outrage. Yel, as Marl, Twain said about reading, (here is little difference be I ween those who don't, and those who can'!. "In our country, all derisions an' made' in aeeordanee with popular will.. . I believe 1 bat. by and large. 1 he public's verdict, will bn sound and just. But here, of course, there is one essential proviso id ml (ho issue' lie clearly defined and that the volera be fully informed of the laris. It is here (hat business has flic obligation (<> make sure ihal evidence is not withheld . . . "It is I he particular, not the general, which is (lie corporalion's proper ipuiil iral) sphere. If can perform effectively only in defense of its stock holders or employees aw such. (In many of the larger and more general political questions, there can Ik * no valid corporate position al all. If iw unrealistic fo presume that even a `business viewpoint' would lie ropresen(alive . . . If would he as didieult to achieve unanimity among businessmen as if would be In reach a single conclusion among an equally large group of le.gislal.ors or clergymen of housewives . . . "Any corporate program, or program of pari icipatiiin by 1 nisi newsmen, will fail if if conceives its proper purpose to be (-lie seeking of favors or of anyl lung relieving, 1 nisi ness of its proper obligations. It can siteeeed only when its objectives are in accord wit h I he highest ethical standards . . . "Businessmen art* already beginning. I think, to see Ilia 1. govern men!., like parenthood, requires personal attention. They Will come 1 o sec, trio, that there can be no delegation at any time of I he responsibility t.o be responsible." OUR COVER The clear liquid giving (iff those evil fumes is (ml coiiceiil.rail'd sulfuric acid. The colorful molilc<t pieces, printed wiring and insulated wire bulbing unmoles!r-dly there in are made with a new i >u I'unl iitasl ie, "Tellon" KkP-fhioriirnrhiin rosin. I udilTerenee l.u acids is only one of KB I **s desirable qualities. It's a standout electrical itisulalor. fuo, all hough we couldn't think of a way to show that in 1 he same piel.ure. Anyway, you'll (inti all of KKP's virtues Jii'elly well extolled in (.lie article Ihal. begins on I lie me;i page, Phol eigraplier Ted Ada ms had the devil's own lime get! lug | bis cover pic! lire, by Idle way four lory; shooting si 'ssiuus amt Id)sheets of Bf< tarhromc. We earnest Iy ivenmmend that no one iry it who isn'l I honing lily ex perienced in safe labnrnlcry procedure. "Tnugh Guy" plastic gets a partner 2 Mure work from work clothes 5 .Hope tricks for industry ft Where thi' ih.pest grows 8 First tea kettle in Texas II Foolproof lish fagging 1,3 ('oltir on colon'll paper 11 Ye,s, you crin <irv clean your wash and wear 1(i 'This busmens of" dry cleaning 17 I loithle duty for your roof 18 det. Tapper, junior grade 21) Blast ie pipe's progress 22 A Backward Glance 22 11 ' New 24 Setting up for safely' 2(> STAFF dames II, McCormick, lutiiuriiti- Supervisor Cordon II. Kesd.cr. Kditor K.inily I leine Georgs' Beymdds < rich! hl.W', K. 1. i hi l'<ni 4i- AniiiUifc ft Wilrnmytim. I v> i-.n*. .Mi lights n>-<-rs uil. 'I hi- 7!11e ill- ihel'ent' iirfy i iol hi- 11 -pn" liiviI in :uiv JuL'm wiilumi i iVmiisI ml'.H \ ml in wri Imp iVnm ih<* | inl>1i--h*-r. " ART AND PHOTO CREDITS I'Y.mi r-mv.-l, 11(). -J |>. S. |*. h. it 'IiIit i. .`.1, p, .!h iS.- lliiisi ns', p i : I'phf.sr Ail.mi:-; hip M Ir BI i ms U-H p. li, I'urrii-r hol'd. (Slirl'm.-m S:iWi*:: huliom ii;111 p. ii & hi,ii"iM p.V: WiiU- HVnihl 1'hoion. I in-.: inp p. f- k'irluMM Si inIh G hip til1 p, '* X- n'ishT p, "W I j I 'n->. 1 nu'i'ii.-h u>n;0: pp, H> & II: H. 1p. Jolj 'It Kill; hrp iK- irniei p. i 1'.: Aim*rii::'n i Vi ri -Ii'iiMi 1 in.l il m <- hnihMii p. I:!. 'flu* M< !<.; |>. In- I'. I.. Nil dhork : p. 11: I nt it . J ;H . i 'I m *! < *?: r: 11 >h, a a: p. h;: I nrrv K <-i Nl<-% ; p. FT: Tin- Hull | IH-.- pp. l-s & l!1- < Yu. .yfirtUl !'ro:!i|vi!, lorn , pii, '.'.l' iK- '.11: Sthitiv! \. M ti-op ;iv p. 'M: l hi its lip:'!; riiihl p. !N: Tir<,iu,\: Jp I'i j - LM: riwim .V-s -o g Li i i -.. p. '1 ': ,J.-uH :u'u , pp. ll'i X !1 '. I 'hi}] ip:., rAnv-i-m- i- i < p ill 1 h>' riAi>r phnhv- illii'B v.i I it ip '"i lu v.htv hr llutii'i;,'" in mil l.i-.l vM-r' liorn V-ii'i 1 -Sp<N>I-.m;m, 'r.B'l :mii John W-.mmiiuN-i.,|| ,Wihiini|-h mi. Mi-L \vhl- ithiils i'L'1 t*lll iy iMilillt'il.i CHANGE OF ADDRESS ri\i insiin' n'rt-ivinp y, mr sir-!;i po]n',-.t*iiil yi'ur iu r v ndi Ip t - proniiH iy hi. Hililnr. I >u l`(ini Mni":ik--iiii'. \Vilmiiiplcip 'IB. I k'l. Si 'i is I nlil iir h 1*" - Uilli ills* lieu . cm hu.iiip ]f pn..:41 iU* \<nif . * U bsln'l, l\:4 i iiCn''A uilf iu s ! Birw.ir,! lbs.; liiaitv/mi' m>li-iV. y.u lAir.i p.v.pi;,-. -TOUGH GUV" PLASTIC GETS A new fluorocarbon plaxlie llial one Du Pont sales manager predicts will ".set iiuluslry on its ear" will begin (loving linni a Du Pont plant in Parkersburg, W. Va., laic in 1`Do. Tire product is "I ellon" MiP-niinrocarhon resin (I he initials slum! lot llnorinaled ethylene piupylcrk:). and ii promises to spread (he unique heiu'hts of lhe Ihiorocni bon plastics to a broader spectrum of industry than ever before. Hecause PbJ* has good melt-flow properties, ii can Ire molded ami extruded like nylon, polyelhylcne and oilier resins familiar to industry. In appearance tile producl resembles high-density polyethylene; it has excellent transparency in thin sections and is ;t Ilaiislueent white in greater thicknesses. The Du Pont Poly-chemicals Depl, will sell it as a granular powdei at an initial commercial price of about SI 2 a pound, and (he Him Dept, will market it as a him and thin-svallcd tubing. The latter dejxiitmeni also has teiitatiie plans to supply iami- I lore I lie new plastic is priinarv insulation on stranded sil\er-eualed hookup wire. Man of distinct ion is John ChraMre, Du Pont Film Dept Bent-seaM envelope of PEP film holds water, hut tin plastic could just ns well hold corrosive rocket fuels Other samples: flat cable insulated with FBI' iiltn, capsM itor, printed circuit ami filtit-coated asbestos gasket Three-wire twisted cable has 8 primary insulation mid jacket of FEI*. ITh eeiniomica 1 lo makc because FEPis easily extruded Coaxial cable lias nitiry insulation of'1 resin, a jacket of ! oyer braid to ward chemicals and moist Kvrv's a neic ''Tijltm" Jhtnrm'urhmt rr'siii, anil this unv's ii true thvnmtfilashr ihfit van (tv invltvtf. mtthlet} ami vxlrmh'd. I hi / *itn t (>vs>!ns if it an lily firoilurtion late this year. mil ions of 1 IT* to selected substrates. nmj ihe l-ahiicsaml I inishes IX j >1. is studying market applications lor IhP-coated fabrics. I I I* is a direct descendant of DuPont's litsi IIinuine ito ri ved plasties. `'Teflon" Tl I- Uetralltiorncihylene) fluorocarbon terms. The 01 ig.inal Tl 1. resin was hoi it 21 years ago when a chemist opened a cylinder of tetnilluoiuclhyletie pas a relative ol the ``hreon" refrigerants and found that over a period of morntis the gas particles hail joined under pressure into a w hiiislt, waxy solid inner seen hetore. Hu IVni began niamifucluring the. first Tl T resin in ITi.'i, and since then the whit ish solids ha\e eoine to occupy an exclusive niche itt the plastics field. Wherexci conditions are ton hot or corrosive lor other materials. wherever yon warn a sni lace that itlmnsf nothing will stick to, Tl 1' resins area likely answer. They' insulate hookup wire in planes and missiles, serve as packing and gaskets in acid pumps and coat bakery tins. In liber form. they make self-lubricating bearings and high performance filters. 1TI1 resins don't behave like ordinary thermoplastics, how ever. Instead of becoming fluid at tempera!ores above o' r 1 their crystalline "melting point," the\ hold their shape. As a result, the special techniques requited to fabricate them are more like those cm plow'd with powdered metals than with plastics. l'iie exciting, thing about H P is that it has just about all of the properties that have made 1 1 1! famous, with one exception : Ti l can he exposed continuously at >(!0 T., while I'll* is limited to a bout IIXVT. Du I'out doesn't foresee any appreciable dis placement of FIT. by I I I*, howexer, The prediction is that there wilt always be jobs otic or the suiter cart do better, hut that a middle ground will develop in which either material cart he used. 11 ere tire the qualities the (wo classes of resins share: They arc excellent electrical insulators, retaining, their in sula ting ability over a x\ ule range ol' tempera Hites a ml frequencies. t touipfvx tri,axial cable has tun wife braid- and Imi Solid copper wire has 4-ttiil coating of PHI', Extrusion tempera. Hire doesn't: degrade elect riil conductor. Mix -pigmented I'lil' Insii- ! tinned nipper wire. [dost ie lake.-. colors v elk \ iieinimdorilled dish this is a lahonilorx sample illustrates another potent ial application for new -Teflon" I-Tll' him. I'osslliilities; molds with exrHIetit release proprrlies; eliemiea l-resistan t la lima tors sinks. s The taller is extremely important in high frequency applications. Because they tin insulate so well, a little ``Teflon" goes a lung way. This saves space and weight, critical factors in aircraft and missiles. They have ms known solvents and are unalleeteil by most chemicals. hxeeplions: alkali metals and certain halogenated compounds at elevated temperatures. Practically nothing sticks to them. A shed of IIP film, lor example, placer] under the* ice cube tray in a refrigerator, will proven! the tray front sticking. Ti l bus this same properly. We asked Bob Stabler, Polychem product technologist, where 1TP would be used to begin with, "Three-quarters of tlie market is expected to be in wire anil wire products," he said. "The remainder will go into injectionmolded parts, tubing, hose and a variety of other end uses, "As the market grows, tlie price probably will crime down. TJ ! prices, for example, have dropper) from SIS a pound for the granular powder in P>-'M to the present S4.I0. Price reduction will broaden the market for PIT1 still more." What clres I I P oiler the wire user that he doesn't have? "A wire and cable coaling resin that is easily pigmented anti that gives a high quality, chemical-resistant jacket in long, con tinuous lengths, free of Haws ami capable of continuous ser vice at /HK!T said Stabler, running out of breath, "l id1 also shows no evidence of turning brittle after prolonged heal aging. T hese !|iialities add up to outstanding reliability." As a primary insulation, ITT* can be extruded successfully over tin-plated, aluminum-plated, silver-plated or bare copper conductors, said .Stabler. The conductors don't degrade since they are held such a short time at processing temperatures. As a jacketing material, it can be applied over shielded and unshielded primaries as well as nmlticondueinr and coaxial cables. "Ice doesn't slick to ITT1," Stabler reminded us. "This raises interesting possibilities. Could i l l1 be used, for example, on airplane leading edges anil propeller blades to prevent ice buildup? We're looking into it. ' MEXSW II11.Ik AT Tin; IT I A! I All . . . T he next day we talked to Dave Ormond of I aim's Sales Development anil Technical Service I .a bora lory about Hie future of ITT* film as his department sees it. "We're .selling film ranging from a half mil to it) mils thick ness, maximum roll width 16 inches," he said. "The elect rival field is one of immediate interest. Because it is thermoplastic, the film can be heat-sealed to itself in a wrapping operation for extremely thin primary insulation, can be combined with This anil other materials or used as cable overwrap. To eliminate conventional wiring, you can make a high performance flexible printed cable with lilni." In printed wiring boards, ;t film of I I I* serves as the filling in a sandwich ofcopper foil ami TIT-, or TTT-coated glass fabric. It adheres well to both surfaces, and I he resulting, construction -"Teflon" throughout yields a superior electrical grade lam inate. Capacitor dielectrics are another promising application. A variety of candy ami plastic molds might be vacuum- or lieu I-formed from ITT* film to give excellent and pcmianent. release properties, Ormond went on. Many shapes might lend themselves to this technique- chemical sinks, ice trays, roll coverings, exhaust hoods and so tin. flexible bladders anil fuel cells for aircraft anil missiles might lie fabricated of the film by heat-sealing or heat-forming techniques. The chemically resistant tilin shows excellent im permeability to a variety of corrosive fuels, such as hydia/itte ami fuming nitric acid, ITT* him also will lx- used in gaskets, seals, diaphragms and bearings, Ormond pieilii.1e.il. The ke.v properties here: nntistiek, corrosion resistance, heat scalability, heat Honda bilily and free dom from pinholes. Asbestos cloth is being laminated with ITT* film now for use in tadpole gasketing for aircraft. Since it prevents xvicking of fuel by tin: asbestos, the (bin film makes the gasket an effective barrier against the spread of Haim:, The Min's chemical resistance also holds out the intriguing possibility Unit it might be used as a corrosion-protective lining for tanks and piping, said Ormond, Practical techniques for this npplicalion are being, studied. Much linings would have obvious importance for the chemical, food and (ranspuiTatton industries. Ormond also sees an outdoor future fur ITT*. The film appears to be transparent to ultraviolet radiation, the villain that shortens the outdoor life of most clear lilms. There is no known limit on IT IP's outdoor life. What Stabler anil Ormond told us. of course, is only the foreword to flic story, 'flic lirst chapter will be written some months from now when commercial quantities of ITT* resin are available to industry. We'll be reporting on these developments later. Meanwhile, write the Du I'mil lor further details on IT I* applications you may have, in mind. I'nteapxiilnled molding *d electronic pui'ts is possible with I'T,I', extending britelils of *'TiTlini to areas <mre excluded. huiustriaf iiw/.'iettlfrge slut!ruts tttul rouhoys of all a sirs an- among the brnojiriiirios o f utility rlnlhus slrr/igthritesl iritfi Do Pout 120 nylon If you buy ;i pair of work pan is today, von can expect them pi lac! about 70 per cent longer than they would have I wo yearn ago. You can, that is, if yon choose ga r meats properly fortified with I )u I'oni 420 nylon, a type that made its appearance in I!).'>7. Yarim formed by blending 2ft per cent of tin* special nylon with cotton have: a breaking strength significantly higher than straight cotton anil are up to live times more resistant, to abrasion. Used in the warp or wearing surface of denims, twills and sateens, t hey lengthen the wear life of ut ility clothing appreciably. Sncli garments serve a sprawling market that, includes sportsmen, do- it yourselferK, college students and school boys as well as farm and industrial workers. The nylonfort ilied fabrics have zoomed to such popularity that- mills riinvntly are turning mil. about two million yards a month. Hack in .1952 when DuPont began its search for a nylon that would blend with eol.tim, the specific goal was to add to t he wear life, of industrial workers' garments. An early field test involved a group of pipefitters, each of whom received one pair of cotton pants and another of cotton and the new nylon. The all coil on trousers lasted an average of Lit days, the nylon- for tilled ones an average 229 workdays. Subsequent tests have shown comparable extra wear ...averaging 7(1 per cent fur the nylon-cotton blends. Such added mileage can make a big di(Terence t.o the com pany fhal pays all or pari of the cost of work clot lung for ils employees. A pair of fortified pants may sell for about, a dollar move (ban the all-cotton variety, I nil tin; extra cost is more than repaid in wear. Also in I crested in t he fort ilied garments are. laundries fhal; supply as well as wash industrial workers'1 clothing. One industrial lanudercr is currently running a wear test with a steel company customer. You'll find utility clothing foil ilied wit h Du Pont '120 nylon at praet ienlly all department and chain stores. Bboiec is wide, too. For example. J. (1. IVimey Do., tne.. which stocked garments of the fabric in two styles last, year, now otters 12. w o k k ( t.oTHics <p i t o <:oi.i,i-:<;r. What style of utility clothing will appeal to what market, is a subject that frequently batik's department store buyers. Fur instance, denim once was worn almost, exclusively by truckers, miners and farmers. College stu dents took it up enthusiastically some years ago, then lust much of their interest. Today, however, it's reportedly enjoying a rumpus revival. Paradoxically, the sateens and twills that the Ivy Leaguers made their uniform have since become favorites for on-the-job wear. Spurred no doubt, by admiration for television cow boys. buys are wearing denim jeans with a flourish and showing a marked interest in the tight or "western'' style. The once popular bib overalls are currently in eclipse. Mothers are enthusiastic champions of nylon-fortified jeans. In one recent, check, more (ban a thousand women supplied informa turn on garments flint their sons had worn 20 to 'M times. Oxer 7f per cent rated the nyloncotton blend buffer than all rotten for jeans. Meanwhile, uses for Du I'oni 420 nylon are broaden ing. New this spring is knit underwear of cotton bolstered with 20 per rent, of it. Previously some knitters hail used small percentages of nylon to reinforce collars and other points of stress, but the current garments are tin* first in which the blended yarn is used throughout. I lore, too, the improved wear-life is significant.. I hidershirts tested wore about. 50 per cent- longer 1 ban all-cotton ones, fur instance. The particular advantage of l)n Pont. 124) nvlnn is find, if doesn't, stretch as much as other varieties of nylon and lienee works better in harness with cotton to keep the. warp yarn strong. Precisely because it- stretches less in clothing, it's putting extra stretch in the clothing dollar. Si uni y, lif'ht etutlope mtnle of III# /'onI filters performs troll mul so res motu'v in ti variety o f dentaniiinfx roles Handling bulky m;i I trials, whether I hey Ik * sled tubing, cwnpnisKor shaft h ir beef on file hoof. is likely hi call for rope. And rope, o ik - of man's mosl ancient tools, is belli li able Io serve iiim these days Ilian ever. The reason: Willi nylon and "1 iaeroit' polyester liber, cordage makers are (.urnin;; out products 1 hat are superinr f.c> older ones in many ways. Both synthetic:-; an* notable for their strength, uniformity and r<>( and mildew resist... a nee, qualif ius that, enable1 them to si anti off rope's tra ditional enemies, hi general, nylon ropes are well over twiee as stroii}.; ns Manila ones of eomparable size, anil ropes of Dacron" arc about, twice as strong. While this may he old stuff to mountain eiirntiers, cowboys and sailors, (.he performance of synthetic cordage is not so well known in industry, partly because the jobs it can do are mo diverse that they're ditlieull. to pinpoint. .But here are a few of the filings that, can happen when industrial users gad to know the ropes. (farrier (torpor,-1(.ion, Syracuse, .N. V., finds jobs for a variety of slings- some of cordage, others of webbing in its machine and assembly shop. A major one is in transporting heavy compressor shafts and wheels along the production line. The coolant used in machining opera tions once degraded Manila slings so rapidly that they lasted only about 12 days. A number of slings made of nylon and "Dacron" have served for eight months and one is si ill going strong after more than a year. "< `onlant -soaked Manila slings larked up si eel filings I rorn the marl lining operations and scorei I ( lu* highly machined si ir (aces that an; so rril ical In nur opera tin ns," (.splains Robert. Sparrow, senior layout engineer. "Kven more important than the durability' of avion anil 'Darnin' is I he far! that their I igbt. consl ruction prevents such chips from being embedded info the slings.'' The ('arrier machin ery division's first use of nylon webbing was for moving electronic rttnlrol units til' commercial rcfrigcrat ion sys tems, H replaced wire cable, which had f.o be padded and even I hen sninel imes marred painied surl'aees. I'arilie 'Tube ( 'ompa ny, I a *s Angeles, needed a sling for moving stainless steel tubing b.OOO pounds at. a time .. through its pickling and cleaning operations. Natural liber rope riisiidegml.ed rapidly in I lie nitric hydrofluoric acid pickling solution: molal chains, while durable, (ended l.o mark and dent, the surface of the tubing. Now I talco uses a three-quarter inch rope of " I )acron" made inio endless slings. Not only are flit'slings, durable they Iasi about, six months, but 1 hey have reduced (he ammiid of tubing rejected because of liaiulling marks. If 1st-where in I he mill almost all of flic tubing is handled on slings of nylon belting impregnat<'d with l)n Pouf neoprene synthetic rubber. In addition, I'alco has oufiil.letf its receiving and shipping departments wit h slings made- of hard-lay nylon, chosen for their si illness and wear resistance. 'Phe I tire-Powell Klevalor, Chicago, sends word that', it. is well pleased wif 11 its lirsl. I rial of bOO-lbot shovel lines of "Dacron". Used In unload grain barges, the ropes go down a marine leg I lirough pulleys from drums at (lie fop. Due line is connected to flic rear nf a scoop and mini her l.o the front.. Two scoops hooked up in ill is way an* then dragged back and I'orfh through I lie grain, which I hey pile on elevators that, lifi il from the barge. r.\f,mm At. c o s t t;pT u\i,.nmu> If leva lor aiiperimendeivl. Janies A. (' roh i hie re porls that alter unloading three million bushels of grain flic lines of "! )aeron" were still going strong, Manila ropes bad lasted an average of 17h,()()() bushels. Kven more important 10 l\ic<' Powell are savings in time and manpower. Since 'T fieri in" makes possible 11 it' use of bigger scoops, what, once 'was a (> hour job lor lb men is now a -I-bom* job for I(1. All in all, the cost of unloading 1,000 bushels nf grain lias dropped to $5 from Rice I 'mi ell tigures. I kindling men rather Ilian mulerials is the job of nylon rope al the American I > ridge Division of l. k S. HI eel, 11 i( fsllurglt. Aider running lesls til t he tensile and impact slreiigt.h of nylon, American Bridge has standardized on il. for bridge!nen's safely lines. Home cordage makers are also produeing webbing of nylon and "Dacron'' for use in heavy duly slings, and nets. In one coi isl.ruelion, a core of para I lei filament yarns of nylon or ''Dacron" is proleel.cd by a woven older covering. Allot her sturdy ' arid y, known as "skiff ed nylon webbing,'' is used for cargo nr-ls by the Navy and Air Puree. Reports of tlieir good performs nee also have eome from '(.wo civilian shipping firms. At one fltird the weighl and ten limes (.he life of Manila nets, nylon bears investigating. The lalesl improvement in synlltel ie cordage is the development by I bl Pont, of a new nylon. Type 707, t hat boosts a rope's breaking sfrengl li about. ICI per eenl above I lint, of regular nylon. 'Phe dry breaking strength of a 5 1 ..-inch cironinference rope of Type 707 is 87,000 pounds, compared to 70,00(1 pounds for regular nylon. In addition, (.lie new yarn lias about throe times the ability to wild stand repeat loading. A11 of t he nylon sold by Du Pom. to the cordage industry recently has been of the new type. More del ails on the pro pert ton am! suppliers, of svnf.het.ic ropes a I id a lisl of their uses are available in booklet form. Kef ns know if you think nylon or '''Dacron'' ean help you I urn a Inf herto diflietill mpe I rick. II MwmM JT i.M....f.m..L..W.*.if..K...w....f.f..i.l.i.T...i.iMBlB _h_m-IwMt - _- j: m-kt. ffTiTyAgT,::,.'. . "''"''city. A I I'arilie Tube ( .a.. ,'l.fHHt |iuiiiiils of i-t,unless s|eel I iihin I'idc thl'oiigh [iiekliilg solution in cmlless slings of -- Hv < ;h ;o !j i<; h k y n o l d h PAYTON'. 01(10 I* our abreast, mure than I we stories high. the giant presses roar day and night. week after week, r;i Injr a ealender I hey never eal.eh. I >omi noting Hie van), inferior of' the two block- long McCall t'orp, printing plant here, t he hip' machines liavc; one purpose; prinf, the lit t ie maga zine that's also the world']-; biggest, 7'/ie lu'uiicr's Ifiyi'sL Though they pause only lur an occasional gulp ol' fresh paper or a quick adjustment. if fakes them ItG days to turn mil. t he Id.ft million copies of' a ilomesl ie / t/yex/ edit inn anil flic ISis'v.-st iumi* nut. once a month. You'll still pet- yours on fijne. however. Oilier presses will carry tin; overload until a fifth and sixth live color giant, fake their places in the ranks within a .year. editorially, I he /i/pcs/ is unique in approach, scope and success. I ft; hundred editors spend 5,000 hours a month weeding out. and deftly polishing the best, articles in GOO publications. They screen more than 20,000 letters bearing anecdotal candidates I'm* Tate in These Untied Siai.es" alone. Their Hi researchers check 2,00(1 facts t hrough 1f)0 sources for an average issue. The conception, establishment and phenomenal growth of the /t/g'r.sf is recounted in James I `laysted Wood's new hook. Of IjfHlJui> InhTfHt the Story of The Header's Digest. Wood ndat.es how I )ewitl. Wallace, a young M id westerner, nursed his novel idea to maturity and how he and Iiis wife, Lila Belt Aeheson Wallace, issued the lirst Reader's Diycst from their (ireeiuvieh Village apartment in February 1922. Its quick popularity propelled t lie young couple to a more spacious garage apartment, at. I'leasanl ville, N. Y. Now, on a model HO acre estate near ( here, more (.hail 2.500 people help (.lie Wallaces compile tin* magazine I ha t is read in 12 languages by 70 million men ami women the world over. in h sprasvimg I lay I on plant, I lioligh, 3am h it the other side of tlu- magazine moon. A remarkable opera tion in il.s own Uic plant. prints son if 50 magazines besides t.llf /)ii;rst. Surrounded by the pungent annua of ink and now paper. I lie brilliant. colors of magazines in ( lie making am I the constant 1:1aiter oC machinery, 0,000 Mc( 'all employees translate the editor's art into the pri liter's science. Their handiwork act-minis for Mm'f lout 1.1 is oC .all of i Jay toil's mail: they have l.tieir own poet iillicc and express office. They draw raw malerial.s from hundreds of barrels of ink. Ions of metal and a ve.rHuhte paper (tires! of ;t() loot cyl inders covering acres of warelionsf lloor. Kilty tons of 1 heir chief by-product, w'usfe paper, tire I rucked to wailing fretglit cam daily. The star of the stable, of ronr.se, is (.lie Dis'i'st, The monumental ( ask of pisiduring an issue slurb; wtl h I be arrival of finished mann.siTipis. illustrations and adver tising ropy IVom the editorial otliees ai I `leasanl ville and (he art and advertising departments in New York f'ify. It <oust!mos 11,500 tons of paper, IV tons of ink, 21 tons of glue and 1,5,'M) mill's of wrapping paper. II ends when 90 earloads of /b/'es/.s have bet'll stall oaf. As Iype and engravings hike form, page proofs sliufl le bark and forth to New York 011 specially arranged train schedules Itnlil they're Id ler perfect and eloel n> plains ran l)e made. From 1YI sols oflhese [trinfing pialcs, eaeh of tlu* big (ifess<-s funis out. Ihree folded TS-page sections trailed signatures! tied are t.w tee flu- umgaziue's page dej fh and must hi' ehopped aparl. la ter. A single i)i)>ivl begins l.o grow when the first signature starts briskly down a gathering line and others join it. a I slid ions .along (lie way unf.il all the inside pages are lo gather. Then they're picked up. pressed tin!, and whisked oil'to the binder between the plates of a damp, hai roule. the signal ores' folded barks arc (rimmed off I It tab. ready for a binding operation that makes tin' /J/prs/ unique among major magazines in st.il) another way. While most periodicals are stapled logdher dilicr from hark to renter or fhrmigli I he entire Ihiekness near the spine, tile /toys/, is "perfect" bound with a hot,-mi'll adhesive developed hy I hi Font, The adhesive made stieli a hit with book publishers when it eras introduced some years ago flint today more than 95 per renl of paperbacks are assembled with (tot. melts. The I)iL>rHt's editors .also were, intrigued by if. Books bound with it could be opened i!it( and It'Cl Dial way. All of every page was exposed (.0 the reader, and double page spreads and advertiwntern's could ci'oss the eenler line as unbroken units. Nor did pages shed asslaples tore through them- which some! hues happens wil h saddle-si itched books. Finally, the end product was belter looking. Tile new adhesive could be a boon to Mel `,'illV pro duel ion line. loo. JVleli.rd and applied a(. high lemperufinvs FSTV F.ki 10 K.i. il set in full slivngth in two or three seconds; glues took up to several hours io dvv by evaporal.itin. of leu bol 1 lent'eking (he whole process. Met kill and I fit I Yiiil. men worked logo!her for nearly a year to adapt Hit' syslem (.0 (he /bgrs/V; large-sralo needs. They designed and inslatled new eqiiipmriif to nielI 1 he adhesive nn<l feed if to applicator rollers, Today no staples pierce flic llif/jr.l. I nsf.ead, I he whole lenglli of (he edge of each page is gripped tenaciously by a thin him of flu' .strong adhesive, which is rolled onto flic freshly (rimmed spine of I he bool; as if moves along in (he grip of ils clamp. IB, cover arrives .siinnllanemistv on another conveyor and is adhered l.o I he same s( icky him. Seconds la ler. as the new double leugl h niagu/ine. leaves on an overhead conveyor to he chopped in half, I rimmed, wrapped, addressed and mailed, the adhesive has already set at. full strong! I) simply 1>V cooling, Bit ice (lie lirsl. oomploiely "liof melf" issue of Pci em ber it 157. more than 200 million copies of (he /byes/ have rolled oil' I lie presses. As always, many' readers have added I hem lo I heir permanent liles. For those avid culler tors, t lie /byes/ has mure good news; (lie new adhesive doe.sn'l harden and crack with age as do animal glues, bid remains si rung and flexible for t he liiel imr of I lie maga zi tie. Thus, readers tire now getting a more lasling reptcalory for I hose valued I byes/ "arl ieles of lasting in lere-it." of g|> ai rrulrr. If pltonc ling.-, iiimmt ; /Ygr.U will si ,11 pul. M ,i;ili lied |.li(ilo 11I mil 11I a //(;.:;< I lunging In il- ms it - -Imiu 11< 1 vs. film el lint -mrll .h IIh -ms I- (arum i m-lib page., rus ir togrl her. THIS IS THE SECOND of four ; liiH'h'r I HI IVxas oil his(jir\ - spuitM It'cd || x tlif I >11 I 'i in l I'ftrnlriuii ( ilten lii-;tls I tix isi<>rt as ;i sultt) < lo l In' pel rnletun iudustrs in its centennial war. 'uiiiinr William \. t hx cus' h t u >. written csperinIK for tin* I hi I'out i- based largeh on lii> tape-recorded inliTX iexxs with Texas oil pioneers. FIRST TEAKETTLE IN TEXAS \enr llic h'monmic iraters of Son r Lul:<\ ii joantf oil. llic tuiv "trol.ottle" refinet \ ha ill its shores, some -ill miles jrimi the Spiiulletop oil fiehl, ivits the "Iumhhutitv of ltufa v .s string of (inIf Const refineries. ISy WILLIAM A. OWKNS llofoiv white uu'ii set I.Uh I in southeast Texas'. Indiana camped Ily a .small lake hi drink the medicinal water and rid themselves of vermin by rolling in the oily mud. Once, legend has it. the lake caught fire while 1 hey wore camped in the deep I hiekets around its rim. (\mvineed that only evil spirits eould make xvnier Inirn, the Indians ran away, never lo return, While mini discovered t.h.nl water from Hour .Lake, xx'hen Kvveef.ened, Listed like lemonade. A shrewd promoter built a large hotel near the, lake and hey.au advertising the healing qualities of its water. Though the hotel was nine miles over thieket. roads from Nome, the nearest railroad station, crowds of people came. They drank the water, breathed I ho odor of sulfur and allowed an old Negro prartitioner, appropriately called Dr, Mild, to rover (hem with mud from I he oil seeps, hew of them dreamed that Sour I ,ake xvas impregnated with nil and gas from a large underground pool. By 185)0 the oil craze that had slanted in IVintsylvnixia in IHfdh (.hen swept, through West Virginia and Ohio, began to he fell, in Texas. Men with oil (ever showed rip ;tl Spied letup a tul Sour Lake looking for oil. Signs were plentiful, hut, not, easily recognizable because they were different from those in known producing areas. .By f HilfS there had been some shallow drilling at Hour Lake, and in I Hilo t he Savage brothers from West Virginia drilled several wells. Three of them had some product ion - enough to whet the appetite but not. enough to prove eonmierrial value in the field. Bv I Bid! Walter 15. Sharp, one of (lie most, enterprising of Texas oil pioneers, began operations at Sour Lake for the Trinity Lubricating Oil ('o. of Dallas. lie was only 2J> years old bul already xvas quite experienced in drilling water wells. Lie also had fried to drill an oil well at. Spindle top. an attempt t hat. ended in failure because his machinery was too light. At. the time he came to Sour Lake an entire drilling rig could he loaded on one lint ear. lie unloaded his rig at Nome anil hauled if to Sour Lake by ox cart. I Iis first well was a failure, but. in May 185)7. under a drilling contract of ,$200, Sharp brought, in a second well that, produced 20 barrels a day. 1 le immediately arranged for cypress storage tanks and a I 00 barrel a-day separating tank. The. oil xvas heavy and black ami useless for anything except axle grease until it was refined. The nearest, refinery was hundreds of miles axvav, over (.he flirt road to Nome t'ir:4 Hour Lake rrlniem ran nnlx a month hHore lire m reeked it in .lanuarx It!1*". Its discouraged Imiklets gaxe up retincrx dream. refined ;j| Sour Lake. trill ii Ini u as produced liiiiiin. mid** llr,iti-tn*il lmI^ ImiiM-rl rongIilicrk>. Sour I .ake Springr It..I,-I r \ I'd rnnsiL I hill cami* to ilrinL firalniIf Haters amt batin' in mini unux before nil a- found tn-ailn , and Stic remainder ol' I,In* way by railroad tanker. Thu transportation <-usl. would eat tip all llif |iroliks. Shari* did nol give up easily. I fe decided Id refine lht> oil *tl. Sour I <ak<\ barrel I he commercial |in>durb*, and sliip them out to the local markels. In Dallas he bought a 100 barrel-a-day refinery of tin* 'Teakettle" type, as they wen* catted, and had it shipped to Nome. In a leal that seems next to impossible now, (hey brought (.lie still from Nome by ox earl, and sel it tip soul.lt of I he lemonade lake. Sharp knew liUle a lion I. operating nit oil reliiiery. The local men working lor hint knew even less, Facing almost insurmountable odds, they built a brick firebox and mounted Lite si ill on if. By December I HI (7 the refinery was ready to operate, lit what must have been a moment of' wonder at l.hemselves, they filled the tub with crude and fired tip wild green pine slabs from a local sawmill. In (.heir best run they produced eight different grades of oil, including ''headlight" oil for loeoinof ivc lamps and both light and heavy lubricating oils. Fager lit have their results tested, they barreled different, grades and shipped lItem out. to market hv way of Nome. For Sharp arid his associates business begat* to look good. The oil held was expanding; refinery operations appeared lo bo profitable. Barring accident. Hour Bake would supply oil prodn<'b* to an area dependent on wood for fuel anil sloplnickel skimmmg.s for axle grease. I 'll if. d isasf.er .slrtirk in -January 181 ).H when the refinery ontiglif lire and was, destroyed, Discouraged, Sharp and the men who had come f.o Sour Lake wi 1.11 him gave up completely and left, some on Idol, because they had lost everything. For a second time lire had driven men away ft'otn the tillnotiade take. t>iCK \.m is \<; u\ riH s i it vn.u 'j'he dream of an oil relinerv at Hour Lake paused on to another group of men. The (iulf ('oast I tc-finery Do. of < lal vrsl.on constructed a refinery of the same 100-barn*I aday size near the idle of the one that had burned. Before il could he put info operation, however, the shallow wells began Io sand up. The amount, of entile they supplied was not enough l.o keep the refinery going. 'The owners gave up. elosefl the refinery and moved I lie eqilipmcnl away. At the time no one could foresee the prodigious Lucas gusher, which came in at Spindletop in 1001 and opened up I he (I till' ('oasf oil industry. Nor could f hey guess f hat, within live years Hour Lake itself would be a producing field with gusher after gusher spouting oil high above file derricks. (funnily. Waller B Sharp held on lo Hume of f ile land he had acquired af. Hour Lake: he re!timed wifh the boom a nd more than made up for I hr* loss he In id suffered wi 1.11 the refinery. The dream of making Hour Lake a refining I own was never realized, however. When the boom did come, re fineries were already under rnnsl.ruetinn af. Beaumont and For! Arthur, where I here was access Io deep wafer. Hour Lake became instead a pumping station on pipelines between Indian Tcrriforv fields and Dull' Doasf refineries. Hixtv years have passed since Walter Sharp's refinery burned down. The resort hotel was destroyed by lire long ago. The lemonade lake tins been drained and filled in. Hour Lake today is a small Iown surrounded by fattk (arms and fhe equipment of Hie modern oil industry. Bark of file take a few old wells are st.ill pumping away after 50 years. More impurlattl. for (.he future: Voids left in 11.* oil sand when millions of barrels of oil wen? pumped out. have now become safe, inexpensive storage spaces for natural gas. Sour Lake has seen a lot since file first teakettle refinery rolled in on an ox earl.. Sonic (it) s car.-* after lir,;| "leakcl I |c came In tin* >1 aft*. 'I exas refiiierich tuHe it (tail? capacit \ of almiil 1!.T> million liai'rHs, Marine biologist u^s nv nn Imiim- In a 11 ill'll |>la~l n* [at; behind die fin of a -I ripcil Ices, Murine biologists clmosc n\ Ion twine lor. .. M<`ii have been 1 aggiiig lisli at least, since I lie days nl' Izaak Will toil, who told ill The (`omplral Aiti'Jcr 11 fib? j how fishermen caught tuna. Lied ribbon bows around their tails, and tossed them back info I lie sea. Wall on's friends were indy fishing for laughs, hut today's marine biologists are in deadly earnest. On their success may depend (lie nation's $:{(!:!million a year ennnnereiaI fishing industry. 1 low tin yon track a (ir.li? 1 imv do you predict, when last, year's t*ro| i of fry will lie his; enough for the nets? Win're's the best. I killing ground for a given time of year? It's as import slid, for lisl leri non to know these things; ;tH j| js for a (iotliier to know how many of his cnslomers will wanl wash-and-wear suits t his summer. I 'rolling for such lisliy facts, the lh H. Fish and Wild life Burvice explores the on sou from ;i dozen experimental la bora lories sniftered from coast. I o coast, and in Hawaii and Alaska. Tuna, haddock, salmon, herring, cod, llmimler and weak I is h are tracked from egghood to adult hoi id. from spawning ground fo lisllerman's net.. In the course of fids fnel - fi lulitig, one thing emerge!I clearly: Scientists had to develop a near perfect fish lag, ime fhaf would stay fastened In (he fish lor life without marking it. as different from its companions. A marked fish has to migrate with I he mob, mate and spawn as the others do. and get it.se!f eaughl in the lisherman's net merely by chance. The tag `also has to he big enough to carry a serial number, the name and address of file I .agger and the reward offered for its return. Designing the ideal lag hasn't, been easy. Back it) 1 fH I, when ;t man named Bella fagged leu Mediterranean bluefiu f i mu. he looped a copper chain around I he fail of each and turned if. back into f ile fishing grounds. Then he spread wort I of the experiment aiming his cronies and sat back to wait for results. Whaf happened to I he elm tried fish nobody knows, because none was ever caught.. Jlllll, lliiiii Sixteen years later a group of French fishermen cut identifying marks info their fishhooks ami lied them to Jlixnsy leads that would break at. the first, tug, leaving the hook embedded in (.lie fish's moufh. They Imd better luck :.!*> fish were rernn ered when they 1 id on other hooks. Then followed a success.inn of' fish fag candidates, ranging from celluloid discs I breaded through a gill fo pieces of leaf her si rapped around a lin. Wlnai f lu* Fish and Will I life .Servin' began to fag lisli in eaniesf. in the lids' I bid's, feehnieinnH set. up qualifications for (lie ideal fish fag. If had to hi* colorful enough to be seen easily in a caieh, light in Weight, not damaging; to tissue, and easily and rapidly af[.ached fo the fish. Once established, these s(aiulards rapidly eliminated unworkable tags. I look type fags almost always caused mouth damage. Any kind of strap or band, whcl her metal or leather, caused chafing and irritation. Silver or copper wire snagged on rocks ami kelp. Marly in 1 bo? (.m erimuail researchers began an ex periment flml. may be f he best, answer yet In certain fagging problems. They att,ached a length ot slender nylon (wine to a Which red plastic fag hearing flic legend. "`SI reward for flic ret urn of this fish to........... ". Then they (Invaded f he twine into a modified upholsterer's needle and looped if f hrough the second top fin of striped bass. Tlic results have been encouraging. The nylon has mei requirements for llexiltilil y and con limit'd tensile si ivngl h in sail, water, scientists report, besides no! being harmful to fish, lies! of all, total lisli recoveries generally are higher. Hesearrhers say this is probably because the lag doesn't tend to hurt the fish and is mor;> durable than previously used fypes. Thus a (nicr scientific measure of fish migra tion is being achieved, a I'acl I hat pleases Fish anil Wild life biologists and commercial fishermen alike. COLOR COLORED A CI.'AI'MIG !)i:SKiNI:R Al Willi A SHFFT Ol- VHin:: ('raftsmen in Du Pout's print ing plant, feared the boss had lost 11 is, grip recently when he: asked f hem to run dark blue paper through the four-color press I hey'd been using to print a color advertisement on glossy witiie paper. Then he wanted some green paper run, then some gray newsprint- - all without, any press adjustments or changes in ink. Finally, the artist- with him even insisted they feist through some jet black paper. Color printing on black paper? Hut the boss (Htan .Rinehart of Du Pout's print ing services.! and (lie artist (Domenico Mortellito, head ol advertising design lor the company.) were completely serious. They had taken over the company's Philadel phia printing plant, for the day In learn more about, printing on colored paper. The group I hey were representing I hi Pout's Dolor C'outiril - is composed of men experienced in color theory, printing, selling, graphic design, advertising mid promotion. For over a year and a half they have been collecting and developing basic information on the use* of colored paper in printed materials. They've been passing along this information to the paper and graphic arts industries through marketing seminars, salesmen's visits, trade adveri.iseinenfe, trade shows mid a IHiriodical magazine. The Dolor (amnciPs work so far has been in the two basic areas of market, opinion research and printing research. Its first, act. was to conduct a national survey among commercial printers, art; direct'ms and commercial artists. These are the pen pie responsible for the final form in which most printed material reaches the reader. The survey was designed to find out what they thought about color generally and about, colored paper in particular. The results: They see many advantages in col ored paper hut. don't; use more of if because of certain technical and artistic limitations they believe it- has; because they lack experience in its use and in judging its effects; and because they're I rained and Margot Larsen, attractive anil gifted graphic designer tor Joseph Magnin, San t raneisci.i, works on one of a series of advertising inserts sponsored by DuPont, like the two earlier inserts pictured on page lb. Miss Larsen's design will demonstrate the creative potential in colored papers. At rtplst ate Iho first two adi'erlisemnnls in .i Du Don! hftrms mniuil ,i) poinlinj.1 tip Iho ilioucj) possibilities in culuiml p.ipnr In prolossion.il nil difoctoi o, tlosipiior'i ,iiul l.iytmi moil. 1 ho mm Idled "Ixploro" is by Soul Dob*.:,, named AD Direelor ul Hit: t'o.il for ) bb? by liis follow pi tries ntuusls. 1 U second i: II in creation tsf Mail hew Leibowit?, who also enjoys on inlemalicnial ml reputation. In add i I ion lo the: work of Mar pot f.arson (i.i.ip.s? 14), Hie ad serins will include ilosipns lV I h Liorini, arl director of 1 orluno, and .Joseph Low, no I ml lor his skill ill usinf; colored and loxfutod paper. liver wonder whether Ilia I wash-and-wear suit, of yours rim be dry-cleaned? 11, run be. bill nearly hail ( lie people questioned last year in a nationwide survey weren't sure of that tael. To help correct this widespread misunderstanding. Du Pont has joined forces wit h the National I nsl.il.ut.i- of Dryrlcajmig. (Spokesmen for Du Pout's Tex tilt* Fibers Dept, i mil if out. that such wash and wear fibers as "Dacron" polyester liber, "Orion" acrylic liber and nylon are much stroll cor Hum natural ones, less sensitive lo water and most chemicals, and thus capable of being dry-cleaned easily. Dry cleaners can use standard procedures on these man made fibers. A ml since water doesn't damage them, tile dry cleaner is free to remove stains by "spotting" with soap anil wafer. Of 1 ,(.)()(> women interviewed in I Ik - survey, 17 percent said wash and wear eouldn'f. I>e dry cleaned and another 00 per cent weren't s u m*. Helping dispel such doubts this year are permanent cloth labels in many men's and hoys' washand-wear suits, stating that, they may also be dry-cleaned. Confusion concerning wash and wear see ms to confer on the precise meaning of the term iI sol!'. I Hi I'out defines wash-and-wear garments as those that can be worn, washed and worn again repeatedly with lif t leor no pressing. This means that, after washing they retain their creases or pleats and require only an occasional light ironing. Wash ami-wear suits, slacks and dresses must, ineel consumer demands tor durability, rollirfast,ness and neatness. Among the popular blended fabrics into which Du I'out fibers go arc (its |itT cent "Dacron" wit h cotton, 50 percent "Dacron" with rayon and blends of "Dacron" with "Orion". lilt I M l ! T TO MKASI lilt .But, there are two pro bleu is. says Dr. Donald I*1. Holmes. 1 hi I'ont.'s men's wear merchandising manager: First, nut everybody defines wash-and-wear performance as st rict !y as Du Font docs and so the term is sometimes applied to garments that don't behave as they should. Second, wash and wear doesn't, lend iI sell easily to measurable ratings. "Trying to explain exact ly what's meant, by 'retains a pressed appearance' is almost as iiad as frying In define the term `beauty,' " he said the other day. Yet neatness retention is often more important t.o men I h;m washnhilil.y, both in I h i vim; a wash - a nil - vvenr unit and in ovahmf mg tbs performance. "In tlu* pasl. several years we've quesl ioned nearly 25 t limisund owners of such sinks," Holmes explained. "About. ISO per rent of them gave dry cleaning as the pro. furred cleaning mot hod. Tile other 70 per cent, told tin they wore, happy with the results they obtained by washing; the suits. Home, of course, use hot li tnet.hods. One of the joys of wash-aiuTWear elotl li tig is that it allows owners this freedom of choice." THIS BUSINESS OJF DRY CLEANING Whether the dry cleaner can ha mile wash and wear successfully is not the onlv thin;.', a bout him that confuses Americans. Al though `>X per eeitt of us use his sen ices, to the tune of nearly S2 billion annually, main of ns k now little more than I tennis the Menace about lire dn cleaner's vvotk. The "diy" in drv cleaning does mean "wilhont water": gamients are hatheil instead in a solvent sneh as Du Pont "I'ei cleric" perehloiclhv lene mixed vvifh special soaps and deter gents. (ietitle agitation in a machine something like a home washer flushes out soil. ( ommeivial dry cleaning was established in branee ovei ;i hundred veins ;tgo ami soon spread lo other an ml ries. I a en in the twentieth ceiittii v. however, (he service left much to be desired. Many of the cle;iniiig fluids didn't tea IK remove the dirt but simply redistributed it. They left an odot, too, and. even worse, created a 1 isc !vn/;m!. 'I hesc obstacles were largely overcome with "Peidene" perchloretliylene. introduced by Du Pont as it dry cleaning sol vent in I'J.'.h "IVrelene" left no odor and was nonflammable, so cleaners who used it weren't forced lo locale in ont-of-tlie-way indust rial ureas. lints neighborhood shops w ifh cleaning lacilit ies in the rear have sprung up everywhere. In fact, in- I he last live yea i s more than HUM Hi new dry cleaning establishments have opened, bringing the l'. 5. total to aboul .'-1,000. Here clothes ate cleaned "on the premises," a fact tfiat's important to tunny people, according lo studies sponsored by the National Institute of Drycleaning. 'Phis is because we often regard our clot lies as extensions of ourselves anti want them to get individual attention, the institute explains. Not many of us arc. as tearful as the woman who sent along a note reading: "Please be good It' this dress." But a signilieanl number of people si ill believe Ihni dry cleaning wears out clothes ami that even the hi st cleaning takes something out of a garment. Tilts is not so, of course, but after probing the feelings of several thousand consumers, the Nil) concluded philosophically : "1 he average pci son is incapable of being matter-of-fact and com pletcly rational about dry cleaning." This study, winch was published as ``How the ( onsumer Really Keels About Dry (.'leaning.." is otic of a long list of printed aids ollered by the Nil) to its 8.500 members. They also can gel such pamphlets as 'A on Kell Service" and "Preserving I ashion Is Out Business.'' as well as advice that ranges from finishing "harem" skirts to setting, up accounting systems. I Tom its Silver Spring. Md.. headquarters, the institute has issued well over 3tK) technical bullet ins, each representing, aboul 5-1,000 wotih of research. A recent book, /o c m.v <>n / ahrn .v, has more than 500 pages of detailed information on HM) kinds of fabric. All of this to help dry cleaners keep pace with new developments. The institute also sponsors seven educational courses, in eluding several by correspondence. More than 8,(M)tt drv cleaners have attended a 12-week general course that covets both the practical and technical aspects of their industry. louring a model commercial plan), a visitor is struck by the amount of indiv ideal eare garmenls gel. As each item is received, it's inspected and lagged with a ie-. ord of unusual stains ami any mending that's needed. Next, vvooleiw me soiled from silks and synthetics, and dark colots are separated from light ones. After cleaning and rinsing, excess solvent is extracted ami the last 11aces removed by air thy mg. (.'lollies now go lo ihc spoiler, who uses steam ami anv of some 20 chemicals to get rid -if stains that are left, lie's not only an expeil at removing, spots, but he also knows enough lo stop before a garment is mined. 1 lie hist siep is finishing, ami this is where lhe good dry cleaner distinguishes himself. Some garments a suit coat, for instance are finished on a form dial looks like a dressmaker's dummy. I lie I oi m is inflated vv it h air, and si earn is forced through if removing till bill die deepest wrinkles. ( ollars, shoulders and necklines then tire louelied up in separate steps, giving, suits that familiar (YesIt-from-1hc-clearicr look. Cn(ni|M*tl lor ,s|>;u'o? The yitswer- will) an assisl Iroiii iiro[itrm;....may he Double duty for your roof W hizzing missiles and satellites nolavi Mist a tiding. if' you're maintained patio balcony wit h t mpical decor. Airport, try in;.; to use every square foot in a new liuildinj;' or squeeze terminals send spectators lo ramps on I lie roof. Schools in the ut.mosl. in work ini; room out. of an old one, you may built-up urban areas gain playgrounds which would not cmisider l.liii-! flic* "lack-of-space ' age. otherwise be practical. I hospitals add roof decks for patients Almost everywhere flic search is on for additional and outdoor lounge areas for nurses. And so on. Ingenious worldn;.; aro;i at-low rost. Office buildings, schools. fact ories, property owners arc constantly adding to the list of duties hospitals and hotels all .share the need. they assign to roof space. One solution is the double-duty root. 'Pin: concept is Obviously, 11 le double duty roof niitsl have a wear re simple: .Every building has a roof t hat, costs money lorou- sist an I,, I ralHe-bcaring surface that also fulfills its primary st.ri.ict. and maintain, a roof that, nan provide a greater purpose of weather protection. Past, experience has led ret urn on investment if if does more than simply keep the many architects to shudder at. t he thought of (.rathe-beari ng weather onl of the floors below. roofs, mid their concern lias been well founded. ('oiivcn I fold)le-duty roofs already lop a variety of buildings. flonal rooting materials are normally he;ivy, requiring ex A 1 iOs Angeles airrrnft manufacturer uses his plaid, roof as pensive support. Packing elasticity, they frequently have a helicopter landing port, for instance. In Chicago. an in cracked as buildings expanded and contracted, for the siiranee company provides an attractive roof-top deck for most pari, they have been hard and slippery, too. flu- relaxation of off-duty employees, in .Miami, hotel R.eeenl I v, a new I raltir hearing root" system developed guests enjoy an all-import,'ml sun deck and an easily by Crossfield .Products ('nrp. of Roselle Park. N. 4., has made the rlonl ile-dul v roof a lot. more practical. Tl le .system gives excellent weather protection and at the same time stands up under heavy foot, Ira (lie. movement of carls, I i furniture or light equipment., and even aircraft landings. 1 Known commercially as "f >ex-(J-Tex'' weaklier wear I roofing, aiid installed only by factory-1 rained cent Factors, the system is based on a patented slip sheet, anchored at. its HI l r i 1*---i s ui dll'' !11 li! nil IHeici Cl! |U1 all ll deck iUMl j M I le i Slirnns . (hanks lo a new d<mlilc-dtil \ root <d *I )r\-< h- f`ex dial Manila up under (raflic and pinlertn again,-t nrather. 11 Ik It III K, While lliir rout tillers prelection Irtim w eat her, i ( lui,-, I i I lie other < Shortage til it>ah!e quire, h< ill e\ rr, 1i;!n eaioetl tie'll ihilkc- In he a.-diiocit In perimeter. Tin* ;Ii|> sheet is free In move in relation In tin? roof subsurface. <rlimi)iatii|i> I lie compile al ion;; <>f normal rnHiracl.Miti autl expansion. Above (.he slip sheet, an* a flexible el,t :l.ie leemliranr ami eon I ings of a ligh (.weight neoprene rmv.pu.-.u ion installed in a series of trowel apple cations. The msinllnfiou provides i(s mm llasliini, weighs some Itvii a i ti t a half pounds a .square loot and is a cjtlmier nf an inch thick. 1`HOS tell <>,\ 1 All. VI Si: \ The surface require:-; virtually lie mninlenaiicc and can be patched readily in ease <if damage. Such rep,-til's are nut. distinguishable from the original surface, f Wfbrnlance has been proved bofli by icsl and by loug-lerm use on < dinner rial and iust it u( innal buildings; as well as on I he weather decks of (tie S. 8, l hlilcil States. ('os Is Inr mi >1 suriacing arc cons id era lily lower than those for quarry iile, In commercial installations, flu* "I )ex O Tex" costs only about a dollar a square foot, more than built.-up moling, which can't be used as a frallieheuring surface. "I )ex-() Tex" is not. considered economi cally practical, however, fur such small-scale applications as private homes. If you" re so squee/.ed for space that il seems there's no |d:ice lo go Inti up. it. will pay you |o think of doing just, that. A word of warning, though: A double-duty roof should he part, of your early planning for construction or renovation, rather Ilian seized upon as an expedient, after 1 i111iti1114 factors already have been established. If wall pay in consult vottr ciml,racier in suilieicnt time to establish s pee i lien lions and details in advance. . . . while Miami airport uses il lor reel -top -peelator ramp \ t' 1 1%H. \\ itli t ratlir-hcariin:. surf.ns- mm in pi,in-, mot hi-enines ,-t r>*is-eatiennl ai'ea, Other uses Inr i i-r^al ile r< ><>!.; hrlu-njitei hlililiilg purl. Irmpnran era ...anti a western Unix emit i relies on a roof profrel id lo tile neoprene-base surtaee In acenrismoTite laboratories. MIDI .AND. PAllu*. electnc furnace area wasn't part, of Rudy Bvehm's usual il inerary at the Oucible S(.col ('oiiipn)iy'K Midland plant-. He generally spent. moat, of his visits arumid (ho lug open hearths where (.hoy used the jot (..upper, a unique device Rudy sella fur DuPont's Explosives Dept., Rut. one day Iasi .spring open hearth superintendent Tom Harkins relayed a message t.o him. "Bill Knilmait wants t.o see you." lie (.old Brelim. "lie's wondering about lising tappers on his electrics." Somewhat, dubiously, Brelim walked over to see Koll mail. 'I'lie jet. tapper has been making it. easier anti safer to draw off steel from open hearths for several years. I Is explosive head, on a long handle, is placed against the refractory material used lo plug a furnace's faphole while tile si eel "conks" inside. 1 )el.oiiatcd electrically from a sale distance, its bazooka like shaped charge blasts a jet of copper pail.ii jes into the plug, opening a channel lor t.lic steel t.o pour through. Bui. lirehrn feared the power-packed tappers might damage the smaller electric furnaces. The steelmaker, he found, hull anticipated his doubts. "Well, why not mala' a tapper with less power?'' Kollman asked. Should be possible, Brehm agreed, hut be hail understood that, it wasn't, needed. While the stationary open heart 11 drained st eel from a t aphole at. the bottom, the electric tilted over to pour its steel through a faphole high on the side, above the melt, surface. Not true now. said Koliinan. Many electric furnaces, including < he live he supervised, were producing well above I heir rated capacity of steel. 'rids put. their I uplink's below the si.irfaee of the melt, which meant, they had to he plugged and tapped, What's more, clean, fast tapping was even more important here, because the electrics were producing' stainless and other specialty steels. liven a slight, variat ion in pouring conditions could mean scrapping the whole expensive melt.. This report, passed on by Brelim, got. quick response from I hi I bill. A couple of months later, sales develop inenf representative (h I'. Williams was on hand at'. Midland with a supply of new 1 )li Bunt. 1 fight. Load .let. Tappers, and he and technical representative I I. ISehaaf helped the Crucible men run a two-month series of tests with t hem. Their chief difference from the standard tapper was a dt) per cent, lighter explosive charge. The tesla were so successful Unit Crucible began using i he new tappers regularly. Now, alter moot hs of experience with them, Kollman can cite a number of improvements they've, made. Not. only is the new system faster and safer l.hmt the older oxygen lance method, lie points mil. but. it. also boosts st.ee 1 quality. "Ami how can you put a dollar sign on quality?" lit' asks. t. v\<:i-:h w ts i oit<:t;t> t o u . u > To explain, he contrasts the two ways of tapping. With the lance, a steelman directs a jet of oxygen on the ping material to burn il. away. The time it takes t.o pierce the plug can vary up to 20 minutes. 'The hole formed is often t.i small to allow a strong (low of steel; at. other times, its course veers so badly '.hat. refractories around (.fit' faphole are damaged. With (.lit* jet tapper, however, a straight hole is punched through Hit' plug instantaneously and a compact stream of sl.eeI pours out immediately. While the oxygen laueer must. wait, gingerly lor the Iasi, layer of plug to give way. then leap t.o safely, a helper tin's the tapper from 1 f> feet. away. Meanwhile, a preheated ladle waits In receive the furnace's load. Its temperature can be made just, right, if it's known exactly when the pour will start; otherwise, il. cools varying amounts. The same is t rue of I lie healed ingot, molds into which steel is "teenod" from the ladle.. liven more import ant., says Kollman, is I he l ime it takes all the steel t.o drain from the furnace. A small or crooked pouring hole projects a small or erratic .stream of metal. This exposes more of Ihn steel |.n oxidation. The full, compact, stream launched with precise timing by t.ln> jet tapper allows a much greater degree of quality control at a crucial I ime, Kollman notes, lb* and his men follow highly complex recipes in producing Hfi alloys for turbine blades, intricate molds, anticorrosion equipment and other atomic and space age components. "A housewife mixing a cake with the accuracy wo maintain would have to use apothecary scales," says he. As for the- steel they're made of. Bill Kollman figures that consistent finality depends on maximum control of every phase of its product ion. That's what, started him thinking about, a junior-size jet. tapper . and persuading ! >u I'onl to do something about if. 1',;ih c nl inslullal ion !k a lu-% li> use of pi|in til \iatlnMi In c o m im--l Imnsr,-. with oil \ inaiii^. ;( ruii/hm'ii tm the ad ranees mtule hy I' lr\il>ilit \ i< a in il 1 ii*i* i irl in" ill jioh i`l h\ li-iic |li|M". 11 it *' it's .-I lOHII brill" inii Inin jcl nnil. I 'ariix'i ^ iii r arming bi;,;gr.-U rn~tiiiiHT- fur pij)<". l.asl vr;ir sales liir all tISCK w rri* 5 HI million. Sh-fL hardly the maga/.ine In wax elo quent ahmd. anything plastic without good reason, not only predicts that the youthful plasf ic f ii|m; industry is headed fur a record sales year, bul adds that, if bus "fast heroine a major I hrenl lo producers of niefal pipe for applieal ions where higl i tempera I.tires and high | >res- sures are not involved . , . ``Producers,'' I lie pil hi tea (.ion eon tinned, "list these reasons for the mounting popularity of plastic pi pi" and bl.littgs: I. excellent corrosion re sistance. 2, light weight, ,`L ease of ili.sl.aHal ion. 4. noiil nxie. price is usually lower I linn for the metal pipe if replaces, (j. tong Iite. 7. nouciniducl.or of heat and electricity. <H. smool Ii in terior walls." ('uitsidenng these advantages, the lusty growth of the newcomer- from sides of $ 100.000 in l!MH to an esl.i mated SfiO million I his yen r... isn't sur prising. ('minting for a major share in this plus! irs success story is poly ethylene. Alone, it accounted for about. $-lU million in pipe sales last year. A major factor in polyethylene's progress has heeti Du Pout's develop meiil of improved pipe resins. "Ala thini" 25 polyethylene resin, inl.rorlneed ahold, five years ago, caught on imme diately as a premium material specifi cally developed for pipe. It. had a variety of advantages, but chiefly if.could stand sustained internal pressure longer titan A BACKWARD GLANCE . . . tlir<m;li jutsl issues il I In* Iht I'onl Magazine ftluthon". trilit u mile on the lalesl iinprovetni'iils pipe made In mi other j j >1 > < ! hylenes, Improvements have been 1 >1.1 i 11 into (.lie product in I ho years since even more resistance t.o internal pressure amt sunlight, and properI ie.s that. have made I hi* resin easier to extrude info ] li) if*. And il haw i out intied 1 <> hi* more economical I him met.nl in (lit* si nailer diameters. Now comes "Alat.hon" .Super* 2;>, I lie n kingpin. "Tliis is our iliggesl advance in a polyol hylene pipe resin in Coni* years of research and development," emphasizes AI Btorkflei h, i'olyelieinii als l.fepf, pipe special is f. I 'roving out a new resin calls for I il orally thousands of tesla and end use evnluai inns, AI any {liven time, some fttMl samples ol pipe arc* being pul. 11 trough either arreler* a led or limp term lesf.s al I hi Pool laboratories. Under going tori i ire side by side are c< impel i at; pipes made from " Alathun" .Super 2a. compel it.ive commercial resins and experimental resins under tlevi:liipmettl by I )y 1'oat. In addition, pipe of "Alai lion" Super go is bring checked in (lie la bora I erics of pipe mamii'actu rers. while various I >u I'onl plaids cvnliiuie it under a variely ol actual use condi tun is, Himpl ieit.y of i risl alia I ion is one of flit* popular virtues of polyethylene pipe. This and ils flexibility have made il a logical choice for connecting houses wild wafer mains or wells, for miming water lo barns and outbuildings, and for lawn s| it*in klor syslcms as ex tensive as (he labyrinths buried in l;n*tory and couniry club grounds. Owners of summer home.- have an ex I m reason lor using I lie product: If il happens dial water isu'f completely drained, the pipe wilt usually expand rather than burst during a freeze. Hales for several roerrnt tonal uses, including sprinkler systems lor golf courses, are soaring. For swimming pools, pipe of "Alathim" carries wafer from flic pool t.o flu* filler and back again. ' I )evi*to[)iucnfs in plaid ic pipe promise si cad y, rapid sate- grow i ll," umiiiii Irs SIeel. We agree. I'ijtr* nl in'M " \ I a 11 mu ' " Super l.i i> iiIh Ic i ci .n-l im t lalniralorv inul lirl.l Jr-,| in*; hiidj In I hi 1`oii! ami ( ij** mailnfactnrrr-. 30 Years Ago (1929) ''Texas ralichen; are using- explosives to rid the plains country of rat tlesnakes. Tlu* snakes hibernate in t he rocks during [.he winter months. Parlies place dynamite charges in flu' crevices and blow out (.Ik * varmints. Those nol killed by the explosion arc shot. roped or cmigbt. with forked si irks." ".Stereoscopic movies, shown on a screen 10 feet, wide and 20 feet high, weredeniohsf.ral.cd Iciaiiinidicnce of publishers, bankers, seienl isls and motion picture exerui ives. The spectacular included scenes at 1 he seashore and on a country mad, plus a talking and singing feature. The film was made by Iki I 'out I `at In' Film .Mann fad tiring ( kirp." 15 Years Ago (19*44*) "Today Iht Find, nylon yarn is going enl irelv into products used by I he armed sen ices. Hut when if rel urns t.o civilian list*, mu* capacity' will he suflicictil lo supply most of flic hosiery industry. Nylon stockings will not be plentiful, however, mil il exhausted storks an* replenished." "A new plasl ic, polyol hylene, is now being offered by Du Foal. I (. is available in subs I a nt ial il ies only by spceilic a llocnl.ion for war purposes. Inti, il is ex ported to be l lie basis for many important. |leaoei itne producls." ... Unwanted woody plants ill fence rows, drainage ditches. utility and railroad rights-of-way and other non cultivated areas nan be destroyed elTcclively with new Du I'out "I )ybar'' I't'iiuron wood and brush killer. I'(die! a arc suitable for spol or broadens!, application. Hi arching can he restricl ed to eollars. cuffs or other parts of washable garments with a new' aerosol powered with "Freon" propellent. "Aeromagie" push-button sf.areh soaks into damp fabriti to imparl, usual all-through stnrehing. Hprayed on dry rlnt.li, it forms light glaze on outside .surface only. Steam iron works best, says maker, < leuera! Aerosols. J lie., it>4 Mill Kt.., Shelton, (loim. < Bright flares for motorists to use as warning signals or emergency lights arc available in a new kit offered by Kilgore, Inc.. Westerville, Ohio. Kit contains three Ib-minute flares made with Du I `out si ronf.ium nitrate. They ran be I if. without matches, burn despite rain and wind. "Jockey" 8kants briefs, made of I hi I`out nylon, are available in brief it variety of solid colors and stripes. Strei.eh nylon construe! ion makes bikini-type briefs conform to the body, says flic ma ker, < 'oopers I nrorporated, Kenosha, Win. u First- men's rainwear in a fiU-f'O blend of "I )aeron" polyester liber and "Orion" aery lie liber has been intro duced bv (ilenongles. 'I'be Ultimo, designed for automatic wash and wear, is available in three colors. Fabric is said lo have exceptional durability, crease retention, wrinkle resistance. For tultiiiioniii information, on prodtui.s or sere-ives men!toned in tiny issue, write l<> the. Kililnr, Du t'onl. Magazine, Wilmington W.S\ Del. New Du Pont. tiOO K cellophane is described as the most durable ever offered packagers. The (>()0-ga u ge polymer coaled film also oilers superioPappearanee and retains l.he elarii v and moisture prol.eel.ioll of ol her cellophanes, says l.he Film Dept. ' New "7" Jet (dene loosens soil and removes stains quickly from vinyl, plastic and leather ear upholstery. An aerosol powered with "Freon" pro pellent, it is used with a damp sponge or brush. If also does a good job on pile fabric upholstery and rugs, reports l.he Du Pont Special lies Sales I )ivision. " (iorrosion inhibitor foravial.ion gas olines, new' Du Pont A FA-1 Aviation Fuel Additive, effectively prevents corrosion in dosages as small as four pounds per thousand barrels of fuel, reports file Petroleum Chemicals Division. Additive has extremely low ash content. VIfi Hi . ... :i --IMgfBl HIWb 181: 'F " Flexible hose of "Teflon" TPKlluorocarbon resin, made by a now process, has minimum bend radius only 3 1 < times diameter of tube. Springdield ".11)0" hose, made by The Ilex, I ne., Springfield. Mass., is formed of helically wound (apes of "Tellon" and glass liber that arc convollifed, cured and jacked ed with si a inless st.eel braid. It resists high temper at.ures, corrosion and faligue. :.'A ir A new pattern in " Fabnlii.e" vinyl upholstery material that ban 11 h i ;i ] >pearanre and low luster of fin** suede ts being produced by I Hi ('tint's Fabrics I Hvisiou. 1 its ;i vnilahlc in t'J colors and two weights, Klegaiice and Crown King;)11-e, .Slim-Trim orange and fruit punch dietary drinks contain only one calorie an ounce, reports I ho Central t.'aiming Co,, Ine.. { Ydarv ille. N. J. Said (o In' the first- canned fruit juices of Idiis; lype, IIiey`-re sweetened wilh J)n Pont ``Cylan" calcium eyelnmute and art' vitamin-enriched. Kitchen laiiglos arc avoided wilh i k nv "No-K not" culled appliance cord thal. stretches up to four fed- from electrical outlet-, retracts f.o compact IS inch tengl b when not. in use. Jack cl ing of On I 'out. neoprene wit hsiands continued flexing, resists boat, hits and oils. Maker is Cords, Ltd., of ]>e Kalb, 111. F (IrouiuI will be broken Ibis month for a $`20 million plant near Florence, S. C , I lie second in which I )ii Pont will mamtf'aclure ''Mylar" polyesler III 111. It, will almost, dot tide eapaeil y for the pn id net. I n add it ion, a million dollar expansion is under way at. .Film I )epf. sales development and rum (outer service laboratory near VVil ininglon, Del. Color-coordinated paintbrushes contain I (HI percent tapered "Tynex" nylon filaments in past-el shades that mulch I,he handles. Made by tlefts Lombard & Do., d 107 N. Kimball 8L, C Chicago, 111,, the two-inch brushes ;ir<* avitililble in lour colors. You tigs ten: waiting for meals can be kept entertained wilh colorable plaeetnalseoafed wi 111 clear' `Alat hon" polyethylene resin. Pl.aymafs, mar kel.ed in sol s of four by I led win ( lorp.. j bOO Kokand 1 loights Ave., Balt imorc. M < I.. pair bright, animal see ties with duplicate line drawings to be colored 1 iv hungry artists. ((rayon marks wipe off easily. --I tlPb: M ia H IL |H| 111 \ WHH| WMBBBr!- m \ 'fBlB Fringe on the lop is featured in this new- danl/.eii swam suit, of' "< )rlon" aery lie fibia-, cotton and clast u- yarn. IKiiit- sheath lias adjustable streps, back zipper and matching sleeveless "scrape" over jacket wit h string f ie at. neck. Fabric dries quickly nml keeps its original shape, denizen reports. " Knap fasteners of 1 )ti Pont "Zytel" nylon resin all-ael) removable land naled vinyl covers to new llulcor ac cordion door made by I lough Manu facturing Corp,, Janesville, Wis, Door also uses rollers .and other parts of ``Zyld" resin. >' Handsome luggage by Trasa'laire owes ils appearance to inamti'ael urer's quest. for .someth ims new. .Fnedberg(Irunmier Co., hie., -lb Fremont St., Kan Pr.unciseo 5, Calif., liked Milan Straw pattern in "1'Yilinlit.o" uphol stery material. Could 1 Hi Pool supply f.he same pa I tern in heavier luggagegrade fabric'' 1 )u Pont eotihi and does. Popular bugs come in gray and blue as Well as in white shown above. r' "Dir Pont is all around you a I iVlacy's." ran the theme of a recent, three-week promol ion at. the New York store. Many's found t hat I )u I Vnt products...from Hie aval belie libers and dyes in wash anil-wear clothing to t he plasties in kitchenware were used in the mamil'set ure of items carried in J ?.`> of t he store's 177 departments. Palest summary ol scion I ilie da i a on ruminant nutrition is contained in The Digest of Iieseureh an l 'reu min' Huminiuit Nutrition, published by I hi Pont Polychemieals Dept. Sub jects include urea sources, roles of earhohydrnIes, trace minerals, pro f.eiits and tally acids, and urea a.-: a nilrogen source. Copies are available af $2.50 each from Du Pont Fairfax, Wilmington 08, -Del, New- altiminuinsl rip-wound electro magnetic roils are said to weigh less and display better space I'aelor ami heat dissipat ion t han conventional wire-wound coils. Kerenl.ly developed by Aluminum Company of America, Alma Building, I 'iftsburgh 19. Pa.. I hey utilize strength, moi.sluiv insensilivity and <1 iolert.rio properties of "Mylar" polyester lilm lo speed wind ing-. maintain minimum coil size and wit lisland high temperat ures. lindinp out tilt at cntisvs nrcidmls and then jnvrvntitiil lima is a rrnaaliii!< Inti voinplicntiul biisiitrss. II, `in an' sanif of thr ImittIts a nett I hi I`ant plant imit to nvvntlv in . . . Du Pont. i'rri|tirnl j`c-i|i'nt il llir National Safety ( uiiiN'iI V iinniiiil Am il ill Honor. was prcsi'iiteil its I 11ti Mil'll wuird h Iio iI11 lii-liirr we wenl lo press. Tin-t iotttieil reoogntMui lO 1 inilii illual Dn I'mit >jrriilitijj u11i 11~ lor llietr I*l~tU Mitel v pi'i Io i iu j iim iu Last < )elober. some W/WO Du Pom employees posted more than 15 million man-hours of work nuimal by only one lost-lime injury; a worker in an esplosives plant broke his thumb. October's record-lying performance helped dtop lire com pany's 1`iSK in jt 11 v-frequency rule lo (lie all-time low of .33 per million work hours serf in 1055. Bui lo a dclcrmincd manage ment. that sore thumb si tick out cum moi c Ilian one is expected lo. Read ill}: typically. the company lias renewed its drive lo reduce the accident tale by exactly UK't per cent What's more, l)n 1'onl safely men believe it can be done. All caily. a person work inn for Du I'oni is ft limes safer than the average industrial worker, I 1 times safer l ban I lie average manufacturing, chemical worker, and lb times safer on the job than oil il. I in ther. lie's more (hull one hundred limes as safe as he would have been while working lor Du Pont 45 sears ago. lie's also kepi tnvaic thal such a degree of immunity to work hazards didn't come about automatically. Safety's sermon readies him from nil directions. It shows up on the pencils ami mile pails be uses, on bulletin hoards and poslers, on elevator walls and (louts, in company publications and on machinery. I laid hats, safety goggles, steel toed shoes even round nosed scissors are as familiar as old friend.-,. Keeping every Dtt Pouter eternally conscious ol good snletv practice even to the point of mild irritation, if necessary -has I'mivei 1 an ellcctivc tool. As the companv s Safety uud I ire Protection Division lias pointed out. `"Achieving the ultimate goal of no injuries will mean doing, each pari of every job the right wav, because, in a broad sense, safely consists ol pie venting mistakes,'* To measure the deep imprint of safety on Du Pont opera tions, we recently watched a safely program take shape at a new company plant itt Tennessee. Actually, the jolt involved two safety progiatiis. .me for the tuigiileering Dept, const ruction force which built the plant. u j h I the other for the operating personnel. Purls ol the I'ngilicet ing piogram, such as the fully equipped tirelighlinp brigade, were absorbed eventually by the plant progt mud niters terminated alung with const met ion activities. But when did tile new ttiul's safely program icaily start "Well," said I ngineering's field project manager Sam K rewatch, "a safety man was standing by when the bulldozer came in Itetc 28 in scoop up (ho lir^l Inad of dirt." I or his pan. plain manager <i. R. Cam well dug out his tile of stalk lei lets t he communica tions sysiem ho sot up I lie ila> he a it i uni. Hie second letter was headed "Personal Injury Proem ion." Wlien a construction eraflsman repotted for work, he got an immediate safety orientation meeting with project safely eitsiineer lerrel I dnmnds. lie found I he project opera tine, under safety standards outlined in an I .uejiHTriue, I >epi. manual and hoist el cd by pn iced i ires diawn up spccilieally for the plant. ( omhiiit'il, they covered piaclicallx every aspect of the design ami sale opera!ion of all tools and eipiipmeni he might he using. Then, Iiefore he hit a lick of work, his eial't Nupemiteiidcnl briefed hint on inoie pariiculars. A week taler, then a month later, he pot more pctsonal pointeis from die stiperintendeiit because, as I dimmd.s ptils il. " I he lir.st day, the litst week. ilk' lirsf month dial's the tone,best time for a new man." Ilic kev man in const ruction safely. Is reseat cl i contends, is the panp foreman. ".Success in pie'endup injuries depends directly on the foreman's ability in keep his men aware and always careful," lie says. Besides keeping a constant lookout for potential sources of injuries, each foreman hetii "gang bus" meetings cverv Monday morning he lore his men cheeked out tools and supplies. 11 ere he relayed to them any pointers growing out of the icpnrls lie ami the older foremen, as well as I diminds, had itinied in die previous sveek, TOP h PKK < :io \t t\U\ I'lAS I oiemen also were given a new iticenli\c to plus), tor safely. A small lapel pin emhla/oned with die iireen cross of safe tv was olfereit to those who established excellent accident records mer a period ot weeks, then met other recpiircmems including passage of a ssi it ten c\a minaln m. Only half a dozen of the I (lit foremen ss ho helped build die plant sson (he pins, and they wane them with pride. 1 heir achievement had added value, too it was made pail of their tail ini', and record tiles, where it would lx- in new for lire ne\1 empiover, When builder Kirwatch turned over the complex plant mid its safely reins to manager Cantwell, the 1 nginocring IVpi. could mark tip another job well anil safely done. lx cry midnight, then and now', the guard on dttlv at the plant gate performs a ritual that's repeated at many I >n Pont locations, lie walks to a hi;*, sign and ehane.es ,i minihei nr front of die phrase "safe dues without a major injury.'' Hie ness number is the I list thine, evervone sees as he arrises for work ami the Iasi thine. he see-, as he leaves tlx plain. Iletsieeii times, lire ses era I bundled I eimesseeiins who are star linij. I )n Pool career's at the new plant are exposed lo (he full force of a safely program designed to lx- as all-pervading as possible, `'Vk c all learn cilher by shock or repetilion," maimams their plant manager. "File shock inelhod usually involves a .serious injury or near injury. We prefer repetition," Cantwell speaks with authority. lie made safe workers of foi lnci ei m hoys. I mlians and oil held I ousla bonis a l t he I )u Pontope'mtcil Oklahoma Orilnimec Works before being made man ai'er of a company plant at Newark, N. .1.. in I`Mm Al'ler esiah lisliinp. a remarkable safely record his litst live wears there. Ire instigated a campaign to operate tile plant for ten wars without a major injury. The Newark plant is rum seven years alone. Inward the goal. Along with the men of the Safety' l)i\ ision, ('a tit well believes ( Tull a! i-tiI'i'l i I'oiumil lee. here -I'l'mg demons!ration if liivalliing deiirc. sets pnlim at Tennessee plant. Plant pity sieian, nurse show men on ulylit -hit'l him In use ri'sih-citalnt' wliile wading lor lielp l eome. MIL Hash <il hand and huger in juries atttunn eon*, [met inti ere us was countered by "keep hie" rarnpniaii. { !oii-s|nn'}iini rr;ih mlnils im v>'% n!\ hi!.' .-jlrlv w lirr[ i"<I i'r<| hi svrui'il in111i'i<A. < !i';i 11- I h iiiim.ntn I i'pmnlh r.ihrl ifjrcn 1! PH I hut it's possible to eliminate tilt injuries. "After all," lie tells you, "one minute after an injury occurs, an experienced man can tell safety matters. "They aren't a part or tag end of other meetings,'* Shincfs noted. A bask safety program manual outlines the you how it could have been avoided." procedure in detail, Safety here in the Tennessee plant, employee relations super To make sure that the production force got olT to it safe start, intendent Herb Shin els told us. starts with tut 18-membcr central a subcommittee td' the cent nil group made a special safety inspec safety committee that sets up general policies. Department heads tion of each piece of eipiipmcnt as it was completed and turned and area engineers who are committee members pass these to over by I neineei mg. linlil it met every safety requirement, subordinates at regular meetings that ate devoted exclusively to Shirrels explained, it wasn't accepted. In addition, the plant's own safety engineer made the rounds with a safety representative from company headquarters. They slapped a quarantine on any hazardous item they found; it wasn't put into operation until the fault was corrected. Eventually, every piece of gear on the plant had to meet their exacting standards. Humans must operate even the most foolproof equipment, however, and humans make mistakes. The new Tennessee employee, in newly issued hard hat and safety goggles, finds that the machinery or equipment lie'll work with has been all Inti psychoanalyzed. "Trouble could crop up here ... or here, if you make a slip," he's told. "This is what you do about it." "If sot net lung goes wrong where that man is working, you do this." "1 hue's your assignment if and when the Fire, Fume and Disaster plan goes into effect.'' lie also gets a set of plant safety rules; no strike-,anywhere matches; no loose clothing, wrist watches or rings around moving machinery; never attempt to catch a falling object. He learns the standard Du Font safety color code. It helps tell him where he can go and what he can safely do (here. Even without countless signs and slogans, he soon knows by its color what to I ouch and what not to touch. He cart pinpoint general danger areas--rollers, moving vehicles, toxic substances, "backward-step" traps, high tempera tures and pressures. The new worker also finds that the plant physician, nurse and first aid teams are ready to help if he docs gel hurt. His annual physical checkup should I tint up defects that might contribute to an accident, and he's encouraged to seek the help of his supervisor in solving any problem that troubles him deeply sometimes a cause of mishaps. Along with everyone else at the plant, he's now working toward the first General Manager's safety award. After that, if the safety record is maintained, there are tire President's and Board of Directors* awards, each oil bring him a prize of increasing value, I le's also coming under the influence of Du Font's expanding effort to reduce ofT-the-job injuries. Many of these occur in the home, and the proved principles of industrial safety arc now being aimed with good \ arid v of proterthe apparel, front hard (tills to this urhlrrT fllll-hngtll outfit. t.~ .-perilled lor operating plant -mli*h - results at the employee's entire fa mil'. Traffic dangers fake the off-hours spotlight. Employees converge on the Tennessee plant from 42 different communities, driving a combined distance equal Id more than halfway around (he earth every day to gel l(> and from work. Thai much exposure to highway hazards means trouble, ofcmtr.se, if proper precautions aren't taken by the drivers. 'I his has become one of the major safety goals al the new plant. So it goes. Safety certainly doesn't stop at the plant gale; in fact, .safety doesn't have a stopping place. This is the key fact that dominates the safely program at the new plant ami the approximately 240 other locations where. Du Font employees are at work. NEW FILM FOR THE DRAFTSMA it versatile new product. "C Tonallex" polyester Oral ting lilm, is making its commercial bmv lids month under the ha niter of I >11 Punt's Photo Products Dept. It has superior transparence, sin's Photo Products, and its surface lias been designed spec! 1 realty For outstanding pencil acceptance. In addition it can be printed readily by letterpress oi otl'set with .standard printing inks. The Film's excepttonal transparency means that it can be run lit rough reproduction machines at high speeds. Its pencil acceptance enables lines of uniform width lo he drawn easily and there is little or no smudg ing with either gi aphiteor plus! ic pencils. The consistency of its drafting surface, says Photo Products, is due to the imk|tie continuous process by which it's made. The lilm has oilier important advantages. 1 ines can be erased easily without removing the matte coaling, or ient tug a ghost line. It is impervious to moisture, too. Wotking drawings on the ill ailing board will not buckle with day-to-day humidity changes, and spills of water or other- solutions can he wiped away without damage. ITs also easy hi clean with arty of a variety of conven tional drafting room solvents. "I'.asy-on-the-eyes" and "no objectionable glare" ate additional strong [mints mentioned by engineers, draftsmen and designers who have tested the new lilm. The users also were impressed with the uniformity of "(Toiutflex" from sheet to sheet and box to box, and its dimensional stability. I he new product is rugged: il resists tearing and accidental creasing, and will slay flexible even under extreme conditions encountered in the Arctic or the tropics. Still another feat tire is its thickness lour thousandths of an inch. This is thick enough to give the body necessary for easy handling, yet thin enough lo save space in stockrooms and filing cabinets. This draft tug lilm joins a family of related poly ester based products developed by Du Pont, the "< ronallex" engineering repiodneiion films. I sed rnainlv to duplicate original drawings and as a tool to save lime in drafting work, they include contact, pro jection ami direct positive films. "l roriallcx" draft mg. lilm is matted on either one ot both sides, as desired, and is packaged in tolls anil sheets. A note to the Du l\>m A/(cpur/nc or the nearest Photo Produels Dept, district office will bring, von the addresses of (he suppliers in your vicinity. NEW FILM FOR THE DRAFTSMAN A versatile new product, "Cronaflex" polyester drafting 1 film, is making its commercial bow this month under the banner of Du Point's Photo Products Dept. It has superior transparency, says Photo Products, and its surface has been designed specifically for outstanding pencil acceptance. In addition it can be printed readily by letterpress or offset with standard printing inks. The film's exceptional transparency means that it can be run through reproduction machines at high speeds. Its pencil acceptance enables lines of uniform width to be drawn easily and there is little or no smudg ing with either graphite or plastic pencils. The consistency of its drafting surface, says Photo Products, is due to the unique continuous process by which it's made. The film has other important advantages. Lines can be erased easily without removing the matte coating or leaving a ghost line. It is impervious to moisture, too. Working drawings on the drafting board will not buckle with day-to-day humidity changes, and spills of water or other solutions can be wiped away without damage. It's also easy to clean with any of a variety of conven tional drafting room solvents. "Easy-on-the-eyes" and "no objectionable glare" are additional strong points mentioned by engineers, draftsmen and designers who have tested the new film. The users also were impressed with the uniformity of "Cronaflex" from sheet to sheet and box to box, and its dimensional stability. The new product is rugged: it resists tearing and accidental creasing, and will stay flexible even under extreme conditions encountered in the Arctic or the tropics. Still another feature is its thickness--four thousandths of an inch. This is thick enough to give the body necessary for easy handling, yet thin enough to save space in stockrooms and filing cabinets. This drafting film joins a family of related poly ester-based products developed by Du Pont, the "Cronaflex" engineering reproduction films. Used mainly to duplicate original drawings and as a tool to save time in drafting work, they include contact, pro jection and direct positive films. "Cronaflex" drafting film is matted on either one or both sides, as desired, and is packaged in rolls and sheets. A note to the Du Pont Magazine or the nearest Photo Products Dept, district office will bring you the addresses of the suppliers in your vicinity. NEWFROM DUPONT NOW from Du Pont, makers of new LUCITE acrylic lacquer and DULUX 100" enamel, comes Car Shield, a special treatment for shielding the beauty of all the latest car finishes. It sets up a hard "repellent shield" between the car finish and dulling dirt. Improves scratch resistance . . . makes colors brighter, too! Du Pont Car Shield is an easy-to-use liquid . . . one application lasts for months. Water rolls off. . . dirt slides off the jewel-bright surface. And you can wash your car sparkling clean in a jiffy because grime can't get a grip! Buy it at service stations, auto supply and hardware stores. Manu facturer's list price, only $1.50. o eaut y P'NISHES