Document 7GDr1LBDxL0RN32qvqb4o7bV

Battery-powered weather eye built by Cardion Electronics, Inc., of Westbury, Long Island, New York. Reporting weather data from isolated Gulf of Mexico outpost, the craft is designed to operate unattended for one year. Battery Powered MAMOS Nautical Weather Watch "Everybody complains about the weather, but nobody does anything about it.''--This famous quote, at tributed to Mark Twain, is still funny, but it's becoming less and less a reality. Clouds can and have been seeded to produce rain or snow. Giant dust storms have been halted by planting of trees and grass. And, on a slightly different front, the U. S. ^ eather Bureau is doing something about the weather through improved forecasting. People ordinarily cannot tell from Monday's blue skies that Wednesday will bring a snowstorm or hurricane Thus the ability to warn of disas trous storms hours or days in ad vance could conceivably save mil lions of dollars in property damage --and even more important--per haps manv lives! To aid its already large network of weather reporters--on land, from ships at sea, and Tiros weather satel lites--the Bureau is plugging a re maining "weather gap" with sea going automatic weather stations called MAMOS. Standing for Ma rine: Automatic A/eteorologica] Ob serving Station, MAMOS is a 3%ton raft which is anchored deep at L I AZ63C5 sea and transmits weather data reg ularly to shore receivers up to 1000 miles away. Refreshingly simple yet reliable lead-acid storage batteries supplypower for the electronic equipment onboard the raft, and the batteries are kept charged by two wind driven generators. MAMOS is 20 feet long, 12 feet wide, and is designed to oper ate unattended for a full year. Built by Cardion Electronics, Inc., Westburv. New York, MAMOS is quite possibly the forerunner to a whole series of reporting stations anchored outside well travelled ship ping lanes all over the world. Her weather measuring instruments will report air temperature, water tem perature, barometric pressure, wind speed, and wind direction. Under normal conditions, these five weather conditions will be broadcast to shore every six hours. A storm sensor acti vates the unit to operate hourly when wind velocity reaches 25 mph. All the instruments as well as the 8 batteries for MAMOS are con tained in 12 water-tight wells that poke up through the deck. The four center wells are reserved for instru ment packages, while port and star- 2-- -- board wells contain six lead-acid cells each. These 12-volt batteries are rack mounted to facilitate servicing, and their 500 to 600 amp hr capacity assures full power to do the transmitt:ng job for the floating weatherman. Engineer, lower instrument rack into water tight hatch of MAMOS (Marine Automatic Meteorological Observing Station) weather sensing robot. - r.. j S^s Big Span Proves Lead Paints Five Times Over A peek underneath the Ben Franklin Bridge shows a large part of the estimated 77,000 tons of steel being spot primed and cover coated with lead based paint. Inset shows painter 200 ft. above the streets of Philadelphia. He is applying finish coat of basic lead carbonate pigmented paint to the huge cable from which bridge deck is suspended. Painting of any suspension bridge is a huge undertaking. But when you add to it the fact that it involves the largest single painting job in Phila delphia or the surrounding area, the magnitude becomes more obvious. Thus one can be assured that the Benjamin Franklin Bridge between Philadelphia and Camden, New Jer sey, won't be painted often--in fact, the last time was in 1956-57. Of course, this means that the owner, the Delaware River Port Authority, is extremely cautious and careful in selecting a paint system. And what better proof of the du rability and satisfactory performance of lead and oil paints could be of fered than to note that the same lead paint system has been chosen to pro tect the Ben Franklin Bridge five times over the last 40 years? The Henry S. Rau Co., Inc. of Philadelphia was awarded the paint ing contract for the current job. Mr. Stanley Sablosky, president of the firm, estimates that 22,000 gallons of lead paints will be needed to cover the mammoth bridge with a spot primer, spot intermediate and com plete cover coat. Rau's painters-- about 50 of them--started work in April and are expected to finish sometime in November. Over 77,000 tons of steel are in volved, and the Port Authority's specifications are explicit in their di rections for thorough surface prepa- ration. Approximately 2000 gallons of 75% red lead pigmented primer will be used for spot and intermediate coats. Specifications call for more than 17 lb. of red lead pigment per gallon of paint. Prior to application of the spot primer, workmen must clean the area to the bare metal for inspection and acceptance. After an appropriate time (not less than 72 hours), to be decided by the engi neer, the intermediate spot coat is applied. This paint is the same for mulation as the spot primer but is tinted slightly to change the color. Finish coat on the Ben Franklin Bridge will be gray except on two underpasses at either end of the ap proaches, which will be repainted green. The gray finish is 100% grade basic carbonate white lead and lin seed oil paint. Nearly 20,000 gallons will be used. By weight, the pigment is 72% white lead with enough black manganous oxide to tint the paint gray. The vehicle is a 2 to 1 mixture of raw' to boiled linseed oil. plus 8% thinner and drier. The green finish--only about 200 gallons will be required--is about 52% pigment by weight. The pig ment is 68% basic carbonate whitelead w ith the remainder chrome oxide green. The mixed green paint must weigh not less than 13.8 lb. per gal lon. Paint for the entire job is being supplied by the Allied Paint Manu facturing Company, Philadelphia. Spot Primer and Intermediate Coat Pigment: Red lead (95% grade) (75% by wt.) 100% Vehicle: Raw linseed Oil (25% by wt.) Drier 95% 5% LI A 26 36 6 less than 23.1 lb./gal. mixed Gray Finish Coat Pigment: Basic Carbonate Whitei lead 98% (72% by wt.) Black Manganese Oxide 2% Vehicle: Raw linseed Oil (28% by wt.) Boiled linseed Oil Thinner and Drier <<0% 32% 8% Must weigh not less than 20.5 Ib./gai. mixed The strong vertical lines of batten-seam con struction in black terne odds apparent height to the gymnasium wing of the Jens Jensen Ele mentary School in Chicago. Architects Harry Weese & Associates repeated the roof design over the common rooms and stairs of the con necting four-story class building. Mansard Roofs Re-Terne in a Big Way! Brown painted terne metal roof ing also distinguishes the houses in Chicago's new Mid-South Ter race Townhouses. The distinctive dormer windows and mansard pat tern, emphasized by standing seams, adds crisp roof lines to the traditional elegance of the basic design. Architects are Pyskacek and Rosenwinkel. Terne mansard roofs painted brown, bay win dows and rough brick walls characterize the three-story townhouses in Camac Village, Phila delphia. Architect Frank Weise used mansard roofs to give each house a distinctive sight line and to eliminate the boxy look which would have resulted from masonry carried to the upper level. A.sSARD roofs were traditionally favored as a means of achieving a strong horizontal roof profile. Now mansard roofs seem to be "in" (or is it "on"?) again and architects are exploiting standing seam con struction and painted terne metal to add an emphatic vertical pattern. Terne sheet (steel coated with lead-tin alloy) is able to negotiate almost any roof configuration and lends itself to batten and standing seam construction. Here are three contemporary mansard roof designs; two are for townhouses and the third is for a public school gymnas ium. Follansbee Steel Corporation, Follansbee, West Vir ginia, supplied the terne. 1 2ft 3 6.8 The $+. George, Sfa+en Island ferry terminal show ing some of the turbulence generated by a ferry leaving the slip. Staten Island Ferry The ferry boat ride from Manhat tan to Staten Island has long been famous as the "biggest nickel's worth in New York". In fact, the rates have dropped since 1654. Then the fare was three stuyvers or six cents. Of course more people and equipment are involved nowadays. In the period from 1946 through 1949 new terminal facilities were built at St. George. Staten Island, and in 1957 corrosion was noticed on the steel foundation piling. Signs of continued corrosion in 1961 indi- Ciose up of the anode. White areas show where the protective coat of lead peroxide has been knocked loose. cated that protective measures were necessary to guard the slip. Lead alloy anode; had already proved themselves in the brackish waters of New York Harbor (LEAD, Yol. 26/No. 3. 1962) and a leadsilver anode cathodic protection sys tem was designed to meet the condi tions peculiar to the Staten Island location.* The water beneath the ferry piers is particularly inhospitable to anodes. The rapid currents and violent agita tion created by ferry propeller wash and the impact of ice. timbers and other flotsam requires a rugged anode and support to resist mechanical damage. Not only do the lead anodes and their supports have the neces sary durability, they also provide a steadv and uniform current distribu tion over the pier structure during turbulent periods. In operation, a large electrical cur rent is forced through each anode suspended in sea water. The current. 15 to 20 ma-sq. ft., reverses the natural current flowing from the steel pilings that corrodes the steel. This reversal causes the lead to he at tacked instead of the structure hut a protective coating of lead peroxide quickly forms on the anode and blocks the attack. Inspections made after the system has been running a year, and consuming approximately 125.000 kw-hr of power, showed that each anode lost less than 0.1 lb of lead per amp yr. Seventy one lead-1/f silver anodes protect the 524 "H"-beam piles and 1200 ft of sheet pile in the terminal complex. Each anode is lid-inch ex truded stock 10 ft long and weighs 86 lb. A circular loop provides a suspension point for a 3.s-inch Saran rope. An insulated lead wire connect ing to the anode is capped with an epoxy filled mold. The high-current output anodes (30 to 35 amp and up to 12 v DC each) are positioned to effectively di * From "Steel Piling Corrosion and Protection--Staten Island Ferry Terminal'' by L. P. Sudrabin and H. Emsig, pre sented at the 1964 Annual Meeting of the National Association of Corrosion Engineers. rect the protective current to the! most severely corroding areas. Since] the full system has been in , - ration, the active red rust visible on piles at I and just below the tidal range has been replaced by inactive white cal-i careous salts. The system was designed and j commissioned into operation bv L. P. Sudrabin. P.E.. consulting engineer, j Berkeley Heights. N. J. with the New \ ork Citv Department of Marine and) Aviation, operators of the ferry. Selection of the impressed current j system hv the engineer instead of! sacrificial anodes was dictated hv an I economic studv of annual protection costs, including initial installation cost, power requirements and the practical considerations of servicinL' and replacing anodes. For example, protection of the rloselv grouped piles under the gallows cap would re quire 2.0 amp of protective current for 10 years per pile 120 amp-vrsi. This could be provided hv two 250 lb sacrificial anodes attached to each pile in the group--a rlcarlv imprac tical solution. Heaving an 86 lb lead-silver anode out of ] water where it has been preventing seawater rosion from attacking steel pilings such as tft shown in the background. LI A 26367 Movable Soundproofing Wall SIMPLE AS Just about every hotel with public meeting space needs to be able to put up and take down walls to di vide large meeting rooms. While a number of movable walls for this use are marketed, the probem of design ing such a wall to satisfy a majority of users and conditions has been complex and difficult. This is not surprising because the acoustical requirements for such a wall are usuallv taken to be massive ness and absolutely tight fit with no cracks or gaps. The wall designer's problem was that when he drew up a heavy wall, he usually called for a powered me chanical system to open or close it. Such systems are costly and quite difficult to build and maintain in a gap-free leakless condition. Simpler systems which stressed the leak-free facet of the problem ordinarily re sorted to a wall structure too light to be an effective acoustical barrier. Bv making a departure from most previous movable wall design, Kil gore Removable Walls Ltd., has built a wall that has won wide acclaim in Canada and serious interest in the U. S. In fact, the Holiday Inn chain of quality hotels in Canada has in stalled 4 of these walls and plans to use 37 more to provide sound bar riers in every one of their hotels in Canada. Key to the new wall design is the use of thin sheet lead in a hollow box-like panel. The lead, 1/64-inch thick, is fastened to the inner surface of Jj-ineh plywood facing. The other plywood face bears an inner layer of fibrous glass. The finish can be fabric or vinvl trim. Edges of the ...carried to their proper positions... panels fit together as a tight tongue and groove. A tongue along the top mates with an inconspicuous metal channel in the ceiling. And the foot of the panel is sealed bv a resilient strip of fabric on which the wall rests. The result is a panel, typically 2 x 10 feet high, which weighs 80 pounds and can be convenientlv fitted into place bv two men. Erec tion or removal is simply a matter of putting each marked panel in its proper place in sequence and locking it to the previous pane] with a builtin cam locking device. It takes only 10 minutes for a two man crew to bring the panels from storage and finish erecting 40 feet of wall. By eliminating the usual mechan ical appurtenances for such a wall and storing the panels away from the meeting room, this arrangement achieves a non-obtrusive decorator effect with no waste space whatever. And it saves the bulk of the cost of other movable walls systems at the same stroke. Test ratings of the wall, under laboratory conditions, do not show it to be an especially noteworthy acous tical barrier. Yet experienced hotel managers praise it. One said. ``In my past experience with various types of dividing partitions and re movable walls, never had 1 had a product that was so efficiently suit able." The explanation of this para dox is that under laboratory condi tions all walls are usuallv tested with the cracks and gaps sealed. In actual service the Kilgore wall is still gapfree even though no special measures are taken during routine erection. Good evidence of this was the in sistence of the Kilgore organization to provide ceiling channel for a sec ond wall spaced a few inches from the first in its first installation. In view of the comparative lab ratings of their wall and others, tbev suggested the use of this second wall if one alone had not provided the desired acoustical privacy. (The cost of two walls erected in this way was competitive with conventional single movable walls.) The second wall has never been built! Kilgore Removable Wall Ltd., is located at 1548 The Queensway, Tor onto 18, Canada. Tongue-and-groove vertical seams and a fitted channel in the ceiling seal three sides of each panel. The base is sealed with a resilient pad. Sheet lead incorporated in the panel helps achieve a practical soundproofng in stallation despite light weight, extreme simplicity. When Atomic Energy Commission personnel started damage studies on the SL-1 reactor that had a violent accident in 1961 they were equipped with a special 7-ton crane redesigned specifically for the job. The crane was fitted with a jib- type sliding arm capable of spot po sitioning cameras, sensing instru ments, vacuum sampling bottles and grappling hooks in the "hot" reactor interior from up to 50 ft away. Even at this operating distance it was necessary to protect the crane personnel with a l^'in. thick lead shield plate installed at the front of the crane and a 1-in. thick lead can opy over the crane cab. Operators looked through a 6-in. thick lead glass to guide their operations. Access to the interior of the wrecked reactor was through a 9 x 11 ft oblong freight door in the side of the reactor building at a height 20 ft above the ground. Photographic and television studies were a vital re quirement first to establish that the reactor was "nuclearly safe" against future eruption, and, second, to de termine the nature and degree of damage before work crews could start deactivating, decontaminating and dismantling the reactor. Before the reactor itself was tackled. LU2b370 onnel built a mock up of the reactor and made dummy runs to pre-check all entry procedures. This gave the crew practice in perfecting operational photographic techniques and so cut down the time they spent in the radioactive area. It took many months to complete preliminary pho tographic, television and sampling studies before the reactor could be dismantled. The photographic and television cameras and radiation measuring instruments were also shielded with lead to prevent fogging and other interference by the high radiation level. Crews mate dummy runs on e full-size mockup of the reactor, to perfect entry proce dures and photographic techniques before undertaking operational photographs. [PUBLIC t k a Ai f<EET SHOOTING] \mcHEsrft\ ,6UN CLUB ITHUHDBR \Moomn New Trick in Baltimore Harbor A 60-watt atomic powered generator has been installed in the Baltimore Light that marks the entrance to busy Baltimore harbor. Coincidentally, the Nuclear Ship Savannah passed as the gene rator was being hoisted into the 50 year old light house. Developed by Martin Company's Nuclear Division ond designated SNAP-7B, the generator uses 120 pairs of lead telluride thermocouples to convert heat from radioactive strontium titanote into electricity. The generator will power the light for ten years without refueling. The generator is almost three feet high, two feet in diameter and weighs approximately 4600 lb. About 20 lb of strontium titanote (225,000 curies) is used. Old machinist's trick brought up to date. Back in the days when machinists relied on a deft touch insteod of automatic tools it was quite common to check the fit between parts by sandwiching a sheet of lead between the parts ond bolting up for a trial. The parts were then disassembled and the lead sheet gently extracted. Surface examination and spot checking with a micrometer revealed precisely where any relief was needed. An up-to-date version of this sort of test is suggested by Armstrong Cork Company to see just how actual flange pressure corresponds to theoretical flange pressure so that the best gasket performance can be realized. Armstrong substitutes little pellets cut from solder wire (B in the drawing) for the lead sheet. By placing these in precut holes in the gasket (C) under test, it is possible to see just what compression is attained. Armstrong furnishes a design manual showing how to interpret and use the test results. A copy can be had by writing them at 7107 Dean Street, Lancaster, Pa. LIA26371 Skeet and trapshooting onto the ring of the country gentler and the well-to-do. No more. Sho ing clubs are growing in numbers! a rate which will make them a poi lar recreational outlet in the bro| est sense of the word popular. Within the next 12 months soi 40 to 45 dubs will be open and! operation. By 1970, it is estimaq that ten times that number will he] use. Considering that each club have more than one field of eal type, those closest to the picture 1 W inchester-W estern Division of OB Mathieson Chemical Corp. sav th liv then we should has e 800 trj fields. 800 skeet fields, and 400 pra! tice fields. Retail sales through the dubs should then be S30 to S50 lion. A big factor in bringing this abod is a plan by W inohester to buiS many of these shooting dubs or plal and supple them for operation bl franchise. This approach has worke exceedinglv well so far and since ad nouncement of the plan last Maj clubs have been planned or built il Long Island. Jug End Resort, South Egremont. Mass.. Philadelphia, Da troit. Fort Lauderdale. West Pain Beach. Redlands. Calif.. Chicago Chattanooga. Phoenix and at Cov entry and New Paltz, X. Y. All of this stems from a trial club at Thunder Mountain. N. Y. whicH was opened bv W inchester in Augusl 1962. Starting with two fields earn" of trap and skeet plus a practicq field, the original schedule called fon daily use and some night shooting on two of the fields. Not onlv did may come when signs like this are as familiar as those of golf driving ranges. lb*** Gun Clubs Shoot Ahead demand for night shooting fail i,, slacken as expected when cold ^rather arrived, additional fields had tn be lighted and night shooting went ,,n a year `round basis. Similar demand followed the openinn of a second club near Clinton. V J. And the same sort of results Here repeated when the third Win chester club opened at Lubbock. Texas--even though it is not near a heavy urban center as the first two were. Success of the clubs can be laid to the preference of Americans for active recreation. "Americans don't want to watch, they want to do!'\ sav the club planners. And statistics hear them out. Between 1948 and 1958 National League baseball at tendance rose only 4 per cent and American League turnout fell 31 per cent. During the same period 29 per rent more hunting licenses were is sued. fishing licenses went up 38 per cent, outboard motors 130. boats in use 144. and retail expenditures for boating 167 per cent. Information about the franchise shooting club is available through R. H. Benedict. Jr.. Winchesterli estern Division. Olin Mathieson Chemical Corp.. 275 Winchester Ac enue. New Haven, Conn. Planning to construction to finished club . . . it's all part of the service the new plan offers to potentia! franchise shooting club owners. Above, Winchester's R. H. Benedict and William L. Wal lace discuss architect's drawings of a new club. Help continues through the actual construction with expert advice on layout de tails such as the trap (left) and skeet (fight) fields shown here under construc tion as the Clinton, N. J. club. The payoff for owners and sportsmen comes with completion of the facilities--those shown below are the Jug End Resort layout in Massachusetts. ,v 9V ook Ahead with Lead LIA26372 Entrance to Administrative Of fices at IBM Rochester facility. Handsomely landscaped sur roundings are accentuated by light and dark blue enameled panels. Interior of factory walls is porcelain enameled white. Old and New... THEY LOOK THE SAME WITH LEADED PORCELAIN International Business Machines Corporation has a world-wide reputa tion for the fine products it manu factures--and for the careful atten tion it gives to the architecture of its manufacturing plants and admin istrative offices. So when growth forces expansion of an IBM plant some years after the original construction, a natural question is: Can we join the new building to the old and still maintain an aesthetically pleasing match? \^Tien the match involves leaded por celain on aluminum, the answer can be an emphatic yes I A typical example would be the giant IBM complex at Rochester. Minnesota. Covering many acres, the factory and offices were originally built in 1957-58. While at the time no specific addition was contemplated, the late architect Eero Saarinen de signed the buildings with this thought in mind. Thus, when it was decided that an addition would be made to the manufacturing facility in 1963, this flexibility in being able to open up one or two walls proved to be a real asset. Roughly 36,000 sq ft of new por celain enameled aluminum panels were required to sheathe the addition. The same two-tone blue finish was ordered from the original enameler --Hamlin-Stevens, Inc., Bridgeport. Connecticut, and in April of 1963, the panels were installed by Flour City Iron & Ornamental orks of Minneapolis. Of course, there was considerable interest on the part of all concerned to see whether there would be anv noticeable difference between the pan els. To quote Mr. F. C. Stevens, a partner in Hamlin-Stevens. "Franklv, we were quite sure we could match the original enamel colors, but the fact that the original panels had been subjected to wind, snow, and brilli ant sunlight for nearly 6 vears would prove to be a rigorous test for amcoating--let alone one less than fi\e mil? thick." The leaded glass coating passed the test with flying colors, however, for a visual inspection of the panels showed absolutelv no dif ference between panels that had stood for five seasons in the weather and those that were brand new. Aerial view of International Business Machines plant and administrative offices in Rochester, Minne sota. Portion of plant that was recently added is rhw" In -olor. Nearly 180,000 sq ft of leaded por celain on aluminum decorate exterior and interior walls. 1 >3 73 0. -- ( CdcU 'H' *t<U a&acct ^,&zct Ceal Boom--According to The Wall Street Journal "This year, in the golden age of golf, three times as niany Americans will go shooting as wjU tramp the fairways." It estimates shooters at some 20,000,000. In 1963, 20.675 tons of lead was expended in ammunition. The industry estimates that the total for 1964 will climb to 54,000 tons. Stop that racket! Mufflers for pneu matic drills are a new development from Great Britain. The sound damp "Look your loveliest in lead" is sensi ble advice to the girl who works wfith dental X-ray, in a radiological lab, or near isotopes. The lead, as dis persed powder in a flexible vinyl panel, provides unobtrusive protec tion against gene damage. As the front panel of a girdle it is centered over the ovaries. A 75 Kv, 400 masec X-ray exposure was reduced 88 per cent by the girdle in lab tests. The manufacturer is Gamma Line Company, 3933 Talcott Avenue, Winston-Salem, N. C. (What was that about glamour roles for metals in the space age ?) Hot "hot" film--Photographic film with a resolution "at least an order of magnitude greater" than conven tional silver bromide films have been produced at the University of Bristol, England, using lead iodide as the photosensitive material. The new film can be handled in daylight and re quires no developing. The film is not activated by light alone but has to be heated to 350 F when exposed to light. The heat requirement rules out the film for snapshots but in many laboratory processes, photoen graving, microrecording and the like, the highly accurate films may well be worth the trouble. ing element in the muffler is a sheet of leaded plastic wrapped around the tool barrel. Noise reduction is said to be three decibels or 50^ CHANGE OF ADDRESS OR NEW READER Use this side of the coupon if you have recently changed your address or if you would like to be added to the mailing list for LEAD Thirty Years Ago All the radio broadcasting studio doors in the "up-to-the-minute new quarters" of the National Broadcast ing Companv in Rockefeller Center. New 'l ork are three-inch-thick lami nates of pine and two sheets of 4 lb lead. Rockefeller Center was com pleted and dedicated in 1932. r CHANGE OF ADDRESS ADD ME TO YOUR MAILING LIST (please circle one) From___________ Name, title Company Street City, zone, state To_______________ Name, title Company PHASE CHECK INTEREST __; Architectural & building fj Design Engineer Ceramics | j Radiation Other (please specify) Street L I A2637 4 I ...ujjiqjjuvuiiLIBRARY O TECHNICAL INFORMATION UiJJJJJJJ WJJi-K/ The following publications are available free of charge unless otherwise noted. Send request! LEAD INDUSTRIES ASSOCIATION, 292 MADISON AVENUE, NEW YORK 17, N. NEW LISTINGS Lead paint systems for bridges Eight-page reprint describes red lead and lead carbonate paint system used to protect big Philadelphia bridge from corrosion. Spec ification details are included. Cleaning radioactive parts ultrasonically Two-page reprint describes lead zirconatetitanate powered ultrasonic cleaner used to decontaminate radioactive parts. GENERAL Discovering the beauty of lead New uses for lead Design engineering data BATTERIES The picture book of power batteries Pictorial presentation of the variety of trucks and tools powered by batteries. Electric delivery trucks Truck costs in a jiffy Three nomographs for estimating costs of gas or battery powered industrial trucks. The choice of battery systems CONSTRUCTION Pools and planters Removable walls with lead lining Isolation of buildings from vibrations Silver anniversary roofs Laboratory drainage systems Lead work for modern plumbing $2 postpaid, $1.50 per copy in orders of 10 or more. Profusely illustrated 164 page text present ing clearly to the plumbing student the nec essary tools, procedures and methods. Lead plumbing Seamless terne for roofing Sheet lead for roofing and flashing Lead as a concrete filler Lead-asbestos antivibration pads Permanent color for lightweight block ENGINEERING High speed lead plating Ten-page reprint delves into new methods for electroplating lead at high rates. It tabulates essential data including performance ratings for test coatings. Importance of lead in glass Comprehensive report and survey on use of lead in glass. Bibliography of over 600 ref erences. New data for electroceramics research Provides liquidus and sub-solidus in the sys tem PbO-BaO-MgO-SiOj. Soldering and soldering alloys Detailed survey of solders. 8 page reprint. Lead sheathing for power cable Transformer noise reduction Materials of construction review Corrosion data -- lead & alloys Methods of lining lead tanks Cutting press vibrations Nuclear materials Radiation protection Low temperature enamels for steel Thermal expansion data -- lead com pounds, two papers I, II Pb0-Fe203 Phase Relations Dielectric behavior of Pb-, Ba-, Sr hafnate systems Lead to control sound and vibratio Anodes for ship protection Lead glazes for brick Continuous extrusion press for cable sheathing FINISHES Decorative finishes for lead Red lead based paint systems r.iperties and compositions for 24 formula tions and systems for a wide variety of uses and exposures. 31 pages. Lead molybdate opacified enamels UPON REQUEST, THE LEAD INDUSTRIES ASSOCIATION WILL BE GLAD TO MAIL "LEAD" REGULARLY, FREE OF CHARGE, TO THOSE INTERESTED, AND WILL COOPERATE WITHOUT OBLIGATION IN THE SOLUTION OF YOUR LEAD PROBLEMS. PkiNTEi. : v i .t-.-v 287 Reproduced by letterpress from lead type. GribE-X.'M.K.MOri -BUKK. NEW YOkK, N. Y. Mail to: Lead Industries Assn., Inc., 292 Madison Ave., New York 17, N. Y. Name, Title Company Street City, Zone, State Please send.______________________________________________ ___ L I A? 63 75 TO REQUEST LITERATURE