San Francisco : Architect and Engineer, Inc · leaf 577
As it swells, itforms a deep layer of insulation betweenthe underlying material and the heat ofthe flame. Surfaces painted with Dio-Texpass fire tests with a slow-burning clasi-fication under Federal Specification SS-A-II8a and meet the new requirement of theState Fire Marshals Code. Soft flat… … Consisting of a compact, enclosed helicalgear drive with separate standard motor,flexibly coupled and mounted on onewelded steel base plate. A movable platebetween motor feet and welded base plateprovides for convenient adjustment. Available in a variety of sizes; doubleor triple reductions; wide…
Architecture · Building
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