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"Homogeneous" LeaiM-ined Acid-Handling Equipment gives you these advantages: / An Inseparable lead Bond! National Lead's "Homogeneous" Lead-lined Equipment gives you just that/ The lead lining or covering is permanently bonded to the steel, copper or brass of which the apparatus is constructed. With the "Homogeneous" process of bonding, you have positive assurance that the lead will not creep, buckle or separate from the steel ' Despite shock, vibration, vacuum, pres sure or high temperatures, rugged "Ho mogeneous"equip ment goes on doing its job . .. cutting down costly re placements (and even more costly shut downs) . . . repeatedly proving itself a sound, profitable investment. You can't part 'em. You can clamp a strip of ear `'Homogeneous' lead-bonded steel in a vise and twist it until the steel fractures. But there'll be no parting of lead and steel. They're bonded for life! 2 Sot-ability af ftiqfi Temperatares! Since no tin or tin-lead solder is used in the bond ing of "Homogeneous" equipment, you can safely employ this equipment at tem peratures closely approaching the melting point of lead itself (620 F.). But that's not all! .The ``Homogeneous" bond holds fast even when subjected to rapid changes in temperature. m Most of the "Homogeneous" processing equipment we produce is designed for ser vice at elevated temperatures. This in cludes not only lead-lined tanks, auto " Homogeneou. iead-cqvered cop per coils .at work in many industries. claves and the like, but also lead-covered agitators, propel lers and mixing devices of many different types. 3 Designed ta Tour Order! National Lead's "Homogeneous" Lead- lined or Lead-covered. Equipment is individually fabricated to your specifications. .That is because acid-handling:'prob lems differ. Efficient, cost- saving equipment must be specially designed to meet LeadJiited-or Letsd-eoGertsd protection for... given conditions. Acid Car and Trailer Tanks ` Our Engineering Depart ment offers you its full co operation in the control of acid -corrosion. We will be pleased to offer suggestions Add Columns Agitators Autoclaves Digesters Heat Exchangers Vacuum Tanks on the most economical and . satisfactory way for you to Propellers Heating and Cooling Coils utilize the protection of lead. No Matter What Your Acid-Handling Problem... Rational Lead is ready to consult with you and supply any type of lead pipe ... valves ... sheet.., lead-lined or lead-covered equipment . . . even complete acid recovery plants. And behind every"National Lead product. .. every National Lead recom mendation . . . are years of experience and many important installations in every field handling corrosive liquids and gases. NATIONAL LEAD COMPANY 111 BROADWAY, NEW YORK %. N. Y. Offices and Plants in Principal Cities and Canada KL-3845--Chemical Engineering, April and October---Petroleum Refiner, April and October--Textile World, April and NovemberIron Age, July 10--Steel, June 2,1947 xr-'. , rak'-i / dis&B&k