San Francisco : Architect and Engineer, Inc · leaf 503
garithmic scale for ratingthe effectiveness of partitions as sound-insulators.Such a scale is used in defining transmission losswhich is the number of decibels by which soundenergy is reduced in transmission through it.Therefore, the larger the value of transmission lossthat a partition has the… … AerialView ofEntirePlant Heating and Ventilating THE SHEET AND TIN PLATE PLANTCOLUMBIA STEEL COMPANY PITTSBURG, CALIFORNIA A three-fold heating and ventilating prcblemconfronting engineers who designed and built thelargest cold reduction Sheet and Tin Plate Millon the West Coast was solved by the…
Architecture · Building
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