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1945 Theatre Catalog, 4th Edition, Page 156 (134)

1945 Theatre Catalog, 4th Edition
1945 Theatre Catalog
1945 Theatre Catalog, 4th Edition, Page 156
Page 156

1945 Theatre Catalog, 4th Edition, Page 156

BOXvOFFICE DOORS add a decorative touch to the theatre. Here, at the Colonial Theatre, Phoenixville, Pennsylvania, the door is constructed from the Republic Steel Corporation's Endura stainless steel.

Speculum Plating

Speculum plating, of the Tin Research Institute, using a coating of about 45 per cent tin and 55 per cent copper (ttwhite bronzeii), imparts the color of polished silver to steel, iron, tinplate, nickel-silver, copper, brass, bronze, siln ver, pewter, and the like. The plate is corrosion- and tarnish-resistant, retaining its luster for long periods of time. Among the items suggested for this {inish are lavatory fittings, furniture, hardware, show case fittings, and business machines.


Iron has been used for centuries in architectural decoration, in spite of the necessity for protecting it from corrosion.


Wrought iron has long been a favorite metal for dashings, hinges, grilles, balustrades, and the like. Real wrought iron# whether made by ffpuddling" or modern methodseis considered to have fair resistance to corrosion, due to its phosphorus content and slag included in the metal. However, most of what is known today as ffwrought iron" is merely lowcarbon steel.

An increasing use of wrought iron may be found in radiant heating installations. Ordinary radiators, however, are cast iron.

The presence of chromium increases remarkably the resistance of cast iron to the effects of heat. As little as 0.5 per cent causes definite improvement, and cast iron containing about 1 per cent of chromium can be exposed to temperatures as high as 1,400 degrees for long periods with no ill effects. No other alloying element, according to the Electro Metallurgical Company, is as efiicacious as chromium in this respect.

Chromium also imparts increased resistance to Wear and abrasion and increases hardness and resistance to corrosion.

Improved methods of tinning cast iron have been developed, according to the Tin Research Institute. Stronger soldered joints will increase durability and a reliable bond between cast iron shells and white metal bearings will simplify and cheapen many bearing designs and facilitate important economics of metal.

Low-Carbon Steel

Low-carbon steel is much used as the basis for surfacing and decorative structures. Here, the actual steel surface is' not visible, since it must be protected by a complete covering of paint, enamel, or non-rusting metal.

One of the most successful coatings for sheet steel in decorative applications is porcelain enamel. First used about 15 years ago as a roofing tile, applications

THE TRIM ON THE MARQUEE of the Rialfo Theatre, Champaign, Illinois, is at the Republic Steel Corporation's famed Enduro lB-8 stainless steel. Republic's Galvannealed was used For the Frame and base of the marquee. Stainless steel-and the other ferrous metals and alloys-possess many qualities which will make them increasingly useful in the construction and decoration of the theatres of tomorrow to be built in all locations.


have been expanded to doors, walls, panels, and various decorative effects. Porcelain enamel for architectural work, especially in theatres, is probably the most permanent, colorful, easily-handled structural veneer obtainable. Indications are that the post-war uses of this material will involve even more building applications.

Stainless Steel

Since the big drawback to the use of iron and steel has always been rusting, the dream of metallurgists has been to make a non-rusting steel. With the development of ferrous alloys of chromium and nickel, really stainless steels have been developed. Although a large number have been developed, chromium steels may be roughly divided into three groups. Steels of the first group (up to 5 per cent chromium) are suitable Where the excellent combination of strength, toughness and hardness makes them desirable. Some of the steels in this group (particularly those nearer 5 per cent chromium and a low-carbon content) show an improved resistance to corrosion. The second group (up to 20 per cent chr9mium, and usually containing nickel, as 18 chromiumeS nickel) consists largely of those commonly known as ffstainless" or f(rustlesslf steels, distinguished ,by their great resistance to corrosion. The third group (over 20 per cent chromium and usually with nearly as much nickel) is distinguished by high strength and oxidation resistance at high temperatures.

Stainless steels are used for increased utility and lasting beauty, as in the Empire State and Chrysler Buildings, New York; the LaSalle-Wacker Building and

Southtown Theatre, Chicago; and the Warner Brothers Theatre Building, Nashville. Here are just a few other

applications: Air-conditioning equipment, blowers, booths, ceilings, chairs, coping, cornices, display cases and frames, doors, down spouts, drinking fountains, entrances, etched panels facades and fronts, foyers, gates, grilles, gutters, hardware, letters and numerals, lighting fixtures, louvres, marquees, mirrors, molding, ornamental work, panels, partitions, pillars, plaques, plumbing fixtures, posts, railings, risers, roofing, scroll work, sheathing, shelving, signs, skylights, sofiits, spandrels, structural members, tables, urns, ventilators and ducts, windows. New applications are being constantly found.

In the development of corrosion-resistant metals, advances have been made in broadening the field of materials to be used in exposed places and still look attractive.

As a corollary to corrosion resistance, it might be well to point out the longer life of iron and steel products in general in those locations where the climate is relatively dry.

Methods of treating the surface of iron and steel to prevent corrosion and to improve the adherence and quality of nonmetallic coatings point to improvements in steel strictly for decoration.

The trend to stainless steel is favored by developments in surfacing base metals or stainless-clad building materials and by lower prices. More attention will be

1945 Theatre Catalog, 4th Edition, Page 156