 The scale is sometimes got rid of by " pickling," the iron being first dipped in dilute acid to remove the scale, and then washed in pure water. "If the trouble and expense were not a bar to its general adoption, this is the proper process for preparing...  Works in Iron: Bridge and Roof Structures - Page 292by Ewing Matheson - 1877 - 343 pagesFull view - About this book
 | Percy Gaillemard L. Smith - 1876 - 260 pages
...successful. Paraffin may with advantage be substituted for the oil. The scale is sometimes got rid of by " pickling," the iron being first dipped in dilute acid...exacted occasionally in very strict specifications. " But somewhat the same results may be obtained by allowing the ironwork to rust, and then scraping... | |
 | Percy Gaillemard L. Smith - 1879 - 548 pages
...successful. The scale is sometimes got rid of by "pickling," the iron being first dipped in dilute iron to remove the scale, and then washed in pure water....exacted occasionally in very strict specifications." " But somewhat the same result may be obtained by allowing the iron work to rust, and then scraping... | |
 | Henry Fidler - Construction industry - 1891 - 322 pages
...successful. Paraffin may with advantage be substituted for the oil. The scale is sometimes got rid of by " pickling," the iron being first dipped in dilute acid...exacted occasionally in very strict specifications. " But somewhat the same results may be obtained by allowing the ironwork to rust, and then scraping... | |
 | Building - 1891 - 324 pages
...successful. Paraffin may with advantage be substituted for the oil. The scale is sometimes got rid of by " pickling," the iron being first dipped in dilute acid...exacted occasionally in very strict specifications. " But somewhat the same results may be obtained by allowing the ironwork to rust, and then scraping... | |
 | Building - 1892 - 566 pages
...successful. The scale is sometimes got rid of by "pickling," the iron being first dipped in dilute iron to remove the scale, and then washed in pure water....exacted occasionally in very strict specifications." " But somewhat the same result may be obtained by allowing the iron work to rust, and then scraping... | |
 | Industrial arts - 1903 - 456 pages
...oil. This plan, however, is expensive, and not very successful. The scale is sometimes got rid of by " pickling," the iron being first dipped in dilute acid...exacted occasionally in very strict specifications. But somewhat the same result may be obtained by allowing the iron work to rust, and then scraping off... | |
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