Document GmLZ6gxapE6aO9oOg5KNbyXqV

Volume 6 SEPTEMBER, 1936 Number 5 Lead burner making hard lead bend for acid line in Weyerhaeuser Timber Co. pulp plan LEAD INDUSTRIES ASSOCIATION Lead Loading-Coil Cases Advantageous in Telephone Work OADING-COIL cases used in connection with tele L phone systems are designed to be used underground or on poles. Therefore water and even moist air must be kept out of them and they must be resistant to corro sion. The Bell Telephone Laboratories have developed a new tvpe of case made of antimonial lead which has several advantages over the previous copper-hearing welded steel cases and even earlier cast iron cases, ac cording to the Bell Laboratories Record. The new case is made of an antimonial lead sleeve of the tvpe used for splicing cable with a lead top and small stub lead-covered cable soldered in one end and a lead bottom in the other. The following paragraphs are quoted from an article describing the development of the new cases by J. E. Ranges in the April. 1936. issue of Bell Laboratories Record: "A lead alloy for housing loading coils has main advantages over other materials which could be used. Sleeves of lead-antimonv alloys are made of the correct size and in large quantities for cable splicing, and as a result of the large production, the cost is relatively low. Its properties are well known also, and it is a material that can be easily worked with simple tools. In addition it permits a ready seal between the case and the stub COURTESY BELL TELEPHONE LABORATORIES Comparison in shipping size between old style steel, left, and new lead loading-coil cases, each housing five coils. COURTESY BELL TELI RHONE LABORATORIES Comparison of old style steel, left, and new lead loadingcoil cases jor loading program circuits, each housing six coils. The lead case weighs only halt as much as the other. cable. Another important advantage of this allov is its ability to withstand the corrosive effects of the elements encountered either in aerial or underground installa tions. No expensive finishes are required to prolong its life. Lead-antimonv is not so strong as cast iron or steel, but freedom from corrosion, ease of working, and low cost are the controlling factors for the smaller size cases. "Another advantage of the lead case is the greater ease with which it may be installed. With the heavier and more bulky welded case it had been standard prac tice for the cases to be transported to the point of installation and set in place by a construction gang, specially equipped for heavv work. A splicing gang would come along later to connect the loading with the cable. ith the much lighter lead sleeve cases it became the accepted practice for the splicing gang itself to transport and place the cases as well as to splice them into the cable." Whereas the old tvpe cases required different protec tive coatings depending upon whether thev were to be used underground or for aerial installations, the lead cases require no protective coating and may be used for either type of installation without alteration. Also the lead cases are small enough to be suspended from the same steel strand that supports the cable to be loaded. LIA25385 [2] Lead Covered Skylight Bars and Ornamental Lead Frieze MOST unusual and attractive structure is the swim A ming pavilion of the G. L. Duffy residence. Three Tree Point. Seattle. Wash. In its construction lead has been used to good advantage for both ornamental and utilitarian purposes. The terrace facing the pool is equipped with a large open fireplace and is protected from above by a glass roof. This roof is built of glass held by lead-covered steel skylight bars. A cross-section of one of them is shown in the accompanying drawing. This type of sky light has been used on manv fine buildings, large and small, and the thick lead covering over the steel pro vides exceptional durability under all sorts of climatic conditions. In this case, the salt spray from the nearby ocean makes corrosion a particularly important danger. Since lead is more durable than any other common metal when exposed to the atmosphere or to salt water (see report of tests in LEAD. March. 1931.1, there need durabilitv, but the soft quality of lead castings and the he no fear of undue deterioration of the skylight bars pleasing silver gray color of lead are attractive. Fur on this pavilion. thermore. years of exposure under these trying condi Along the front of the skylight roof is an attractively tions will not cause discoloration or staining, but will ornamented cast lead frieze. This frieze is supported simply cause the lead to acquire a natural patina that bv and completelv covers a wood frame. Behind the improves with age. frieze is a lead-lined gutter, the apron of which runs up The architect for this swimming pavilion was E. J. under the lower end of the skvlight as flashing. Not Ivey of Seattle and the contractor was E. E. Smiley of only is lead appropriate for this frieze because of its the same city. A M - - crtian of ! `' lead sheathed skylight bars, anti views oi the pavilion showing the Standard steel TcoreLead glazma web Glass held on lead by lead prevents breakaae----------------- Deep condensation gutter of lead------ .---Seamless lead see . Lead corrugations form / perfect airsea! E'' / ..-Deep drip gutter afleaa Knife eaae lead cushion ' for glass ""Heavy lead cushion withstands pressure sky lip hi on which these bars are used and the cast lead orna mental frieze. L I A 2 S3 8b [3] Six inch antimonial lead acid lines into acid recovery tower, Weyerhaeuser Timber Co., Pulp Division One of 15 antimonial lead return bends on wood-stave vomit-stack gas line. The bends are 24 in. in diameter and lead burned from % in. thick lead, weighing about 1600 Ib.s. apiece. Showing 24 in. antimonial lead return bend and elbow on wood-stave vomitstack gas line and 12 in. antimonial lead acid sewer line. New Sulphite Pulp Plant Has Much Lead Equipment HE new Weyerhaeuser Timber Company sulphite Tpulp plant at Everett, Wash., is equipped with ap proximately 100 tons of lead products to resist corro sion from sulphurous compounds used in pulp manu facture. While practically all lead pipe and sheet lead for this installation was made with a 6 per cent anti mony content, there are some locations in the mill where especially severe conditions, resulting from corrosion or heat or both exist and a tellurium antimonial lead alloy was used. A multitude of lead shapes was em ployed. ranging from simple extruded pipe to compli cated. specially constructed shapes, the ease of work ing and burning lead making it particularly adaptable. There are some 35 tons of lead in the Jenssen gas cooler, which is similar in general design to those used in sulphite mills throughout this country and Canada. Here the tellurium lead alloy is used for the 8 in. tees which connect the leads to the gas cooler from the cast iron header of the sulphur burning equipment. All other lead in this section of the plant is straight 6 per cent antimonial lead. The 12 in. headers. 27 ft. long, have 3g in. walls; all 8 in.. 16 in. and 20 in. lines have 14 in. walls: and the 8 in. bv 3 in. risers and return bends, and the 10 in. by 5 in. water seals are 44 in. wall elliptical antimonial lead pipe. All elliptical pipe, and other sizes up to 12 in. inside diameter, are seamless. These are 8 in. antimonial lead sprays with lead flanges for the acid system.. Lead piping in acid filler system tank bottoms. Tank walls were built on later. [4] LI 425367 drawn with special dies and mandrels to insure uniform wall thickness and standard cross-section. The cooled gas is carried to the Jenssen towers by 20 in. antimonial lead lines, and 6 in. lines carry the liquids serving the acid towers. The acid recovery tower, the acid filters and acid storage are served with hard lead lines. The sewer system for the acid building is made of 10 in. antimonial lead with 14 in. walls. All bends and sweeps were designed to reduce friction to the minimum, and all joints and seams burned inside and out to insure maximum ser vice. In a number of places in the plant, lead handles a spe cial problem. Fifteen 24 in. diameter 3/g in. wall elbows and return bends used on wood stave lines were made from sheet lead to handle the vomit-stack gases. To handle stock washing. 8 in. hard lead sprav heads were built to specification. A high pressure line in the acid recovery svstem was made from tellurium antimonial lead to carrv the extra load at a minimum cost. Mr. 0. C. Schoenwerk. engineer, was responsible for the design of all this lead work and for supervising its installation. Lead is one of the most useful materials available to the chemical engineer be cause of its excellent corro sion-resistant characteristics w hen exposed to a wide varietv of chemicals. Alloys such as antimonial lead and the more recent tellurium lead and tellurium antimonial lead have widened its field and increased its usefulm - Top of elliptical hard lead pipes in gas cooler unit, showing water seal lead jackets. Installation of elliptical antimonial lead gas cooler unit. Oldest Active Plumber Advocates Lead l e x a n d e r ml ir h e a d . a voung plumber, left A, his home in Edinburgh. Scotland, in 1874. to plv his trade and seek his fortune in the United States of America. He landed in the Citv of Boston. Massachu setts. after a fast passage across the Atlantic of fourteen davs. His first job was with Mr. Alexander Campbell, master plumber, in the town of Charlestown. Massa chusetts. After working for Mr. Campbell for two and a half years, he decided to go \^est. In 1876 he left for New 1 ork Citv. then went-overland to San Francisco, where I10 boarded the 'learner "John L. Stephens", an old side-wheeler, for Astoria. Oregon. He sot his first job as a plumber installing all the sheet lead and lead piping on the U. S. revenue cutter "Thomas Corw in '. a wooden boat being built in the Astoria Shipyards. When the "Thomas Corwin" was finished, he sailed up the Columbia to 'W estport and worked as a plumber for the Westport Salmon Cannery. He then went on to Portland. Oregon, where, in 1879. Mr. Muirhead im ported a bathtub from Scotland which was made of zinc I4 in. thick, and a porcelain pan type toilet that he in stalled in his own home. In the vear 1888. Mr. .Muirhead launched out in busines' with Mr. Murhard. under the firm name of "Muirhead & Murhard Co." This is LIA2 53 88 [5] the oldest plumbing firm in Portland. Oregon, and is still doing business. The accompanying picture of Alexander Muirhead at the age of eightv-six years shows him as he is today. He believes he is the oldest master plumber in the L'nited States who goes down to his office every day. His slogan is "Lead, and how to work it. is what the plumber should know''. Old timers who can look back on long vears of experience in the plumbing in dustry readily realize the great value At 86. Alexander Muirhead of Portland, Ore., believes he is the oldest active plumber in the country. that lead has held for them. Wherever lead is used, it is responsible for a high level of craftsmanship in the plumbing industry, a level of craftsmanship at tained by few other industries and one which protects the plumber and public alike against irresponsible, incompetent workers. No t e : Perhaps there are other old timers among the friends of lead who can outdo Mr. Muirhead in point of age and service. If so. we would like to have their stories and photographs. Sheet Lead Reduces Vibration on Railroad Underpass HF. Great Northern Railwav. working wdth the En Tgineering Department of the City of Seattle, selected lead to reduce vibration and for several other reasons in the construction of a small underpass bridge on their main line at Golden Gardens. Seattle. Wash. This bridge is constructed of pre-cast and pre-cured concrete slabs, resting on horizontal steel girders. These slabs weigh slightly more than two tons each and are holt-anchored to the steel under-structure. The railroad bed and ties rest immediate! v on top of the concrete. Sheet lead plates, in widths of 13 and 15 in., and of Vj ; in. thickness, were inserted over the entire area be tween concrete slabs and steel girders. The lead serves many purposes. Primarily it is used as an anti-vibration material, absorbing the vibration resulting from the constant freight and passenger traffic passing over this main-line bridge. It also takes up anv differences in the surfaces of steel and concrete, its softness and flexibility permitting a perfect settling of the two materials and Great Northern Railway underpass at Golden Gardens, Seattle. Rash., on which sheet lead was used to reduce vibration and for other reasons. Details ol concrete and steel construction of Great Northern Railway underpass. The sheet lead is between the concrete and steel and the edge ol the lead is fust visible between these materials. [6] L1A25389 compensating for any surface irregularities. This at the same time prevents cracking of the concrete slabs under the stress and weight of railroad traffic, especially where the concrete might otherwise rest unevenly on the steel. Furthermore, the softness of the lead protects against the sliding and vibrating action of the concrete over the steel, which would have the effect of abrad ing the paint, thus permitting rust and subsequent de terioration of the steel work. This bridge was built for the Great Northern Railway in 1933, the contract being handled bv the Cascade Construction Co., Seattle. Wash. Old and Modern Lead Plum bing in Pasadena, California LTHOUGH 40 years of life separates the lead A plumbing goods shown in photographs here, there is a close relationship between them. One is the reason for the other. Fortv-seven years ago the lead pot trap illustrated was installed in the Hotel Mission at Marengo and Colorado Streets in Pasadena. Calif. When the building was being remodeled seven years ago this pot trap was removed bv E. 0. Nav Co.. Pasadena plumbing contrac tors. and found to be in perfect condition and clean in Lend work wiped up in (he shop tor a Pasadena. CaliL, plumb ing job. The lead bends had already been sent out. side despite 40 vears of continuous service. A further point of interest about this old lead work is that the pipe is the old-fashioned kind made from sheet lead with burned seams. The other picture shows modern lead work about to be installed in the William R. Nash residence in Pasa dena by the same firm of plumbing contractors. The lead bends had already gone out to the job when this photograph was taken. This lead work was done by A. L. ARNOLD Harold Shirk and T. B. Hursh. journeymen plumbers, and is a fine example of the kind of skilled craftsman ship that is a credit to the plumbing industry and as sures the home-owner of high-class workmanship. The connection between the tw o photographs is this. Time and again old lead plumbing is found that has given long, trouble-free service. These old installations clearly demonstrate the fact that lead offers the best means for a plumber to give his customers high qualit\ plumbing. That is why so many of the country's leading plumbers insist on installing lead work for the con cealed parts of plumbing installations. They know it will add to their reputations and bring old customers back and new ones in and that it costs no more installed than less durable materials. It is also whv so many cities, of which Pasadena is a leading example, require by ordinance that concealed wastes be lead. Thus the public is protected not only against expensive plumbing repairs but against unsani tary conditions resulting from failing plumbing. Wide awake authorities and plumbers in Pasadena have recognized the proved performance of lead in actual service and have further recognized that all new ma terials and methods that may be introduced are not A. E. ARNOLD Lead pot trap in perfect condition after 40 yean of con tinuous service in Hotel Mission. Pasadena, Calif. necessarily progressive. They do not believe in experi menting with the health of the community. [7] LI A2539C Better Paint Campaign Has Traveling Office and Display O SATISFY requests for further information about Tthe causes of paint failures and methods of prevent ing them which resulted from programs put on at 12 state and regional lumbermen's conventions and to take care of requests from lumber association secretaries to bring these programs to their district meetings, the Forest Products--Better Paint Campaign has estab lished a field service department. The Douglas Fir Plywood Association presented the Campaign with a specially built trailer coach to use as a traveling field office. This coach is constructed mainh of douglas fir plywood with double walls and the in terior has been beautifully decorated with lead and oil Traveling held office and exhibit presented to Forest Prod acts--Better Paint Campaign by the Douglas Fir Plywood Association, shoun in front of the U. S. Forest Products Laboratory at Madison. If ia. before starting on its tour. Retail Lumber Dealers Associations sponsor the tours of the coach and receive credit for having the exhibits on display. It has already made a tour of the principal cities in Virginia and is now touring New England. Eventually it will have been on display in cities through out the entire country, but this program will probably require about three years to complete. The Forest Products--Better Paint Campaign is spon sored bv the Lead Industries Association as a contribu tion to the lumber industry to increase lumber markets through the use of better paint. Also cooperating are all the national and regional lumber manufacturers associations, the International Society of Master Paint ers and Decorators, the National Lumber Dealers Asso ciation. and others. The 19 associations cooperating in this campaign are: American Forest Products Industries. Inc.. Arkansas Soft Pine Bureau. California Redwood Association. Douglas Fir Plywood Association. International Society of Master Painters and Decorators. Inc.. Lead Industries Association. National-American V holesale Lumber As sociation. National Door Manufacturers Association. National Association of Commission Lumber Sales men. Inc.. National Association of Woodwork Jobbers. National Lumber Manufacturers Association. National Lumber Dealers Association. Northern Pine Manufac turers' Association. Red Cedar Shingle Bureau. South ern Cypress Manufacturers Association. Southern Pine Association. Vest Coast Lumbermen's Association. Western Pine Association and V estern Red Cedar Lumber. to show typical forest and mountain scenes from the districts in which most building lumber is produced. On the outside walls of the coach glass-covered educa tional exhibit cases are mounted to attract the public to the use of forest products and better paint. Eight of the eleven exhibit cases were prepared by the L . S. Forest Products Laboratory to tell the story of wood, its uses, proper and improper painting. Pictures of the labora tory and some of the more important testing machines are included. The field office also carries laboratory and photo graphic equipment. The coach is parked in the cities visited so that the public may examine the exhibits. The LeaFlet on Lead Shower Pan Installation Now Available N ILLUSTRATED four-page leaflet giving step-by- At step detailed information on the correct installa tion of lead shower pans, with drawings of correctly installed shower pans and bathtub flashing, and setting forth briefly the advantages of this type of waterproofins. has been prepared bv the Lead Industries Associa tion. Architects and plumbing contractors will find it a useful guide in getting maximum results from this material. "Lead Shower Pans--Proved V aterproofing bv Plumbers" will be mailed free upon request. 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 LIA253Q1 [8] ____ _ PRINTED BY PUBLISHERS PRINTING CO. NEW YORK, U.S.A.