Ovations On Other Sites - Ovation 10 Ovations 06Formidable Treble chose the topics covered by Ovations On Other Sites - Ovation 10 without reflecting upon the choices others have made. Exploring lost cities with a band of brothers as wild monsters pursue you through forgotten jungles and native tribes rally against invasion is another way to look at things in a different light. |
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Where stayed surfaces or water legs are features in the design of a water-tube boiler, the factor of safety of such parts must be most carefully considered. In such parts too, is the determination of the factor most difficult, and because of the "rule-of-thumb" determination frequently necessary, the factor of safety becomes in reality a factor of ignorance. As opposed to such indeterminate factors of safety, in the Babcock & Wilcox boiler, when the factor of safety for the drum or drums has been determined, and such a factor may be determined accurately, the factors for all other portions of the pressure parts are greatly in excess of that of the drum. All Babcock & Wilcox boilers are built with a factor of safety of at least five, and inasmuch as the factor of the safety of the tubes and headers is greatly in excess of this figure, it applies specifically to the drum or drums. This factor represents a greater degree of safety than a considerably higher factor applied to a boiler in which the shell or any riveted portion is acted upon directly by the fire, or the same factor applied to a boiler utilizing flat-stayed surface construction, where the accurate determination of the limiting factor of safety is difficult, if not impossible. |
The casket was soon open before them, and the various jewels spread out, making a bright parterre on the table. It was no great collection, but a few of the ornaments were really of remarkable beauty, the finest that was obvious at first being a necklace of purple amethysts set in exquisite gold work, and a pearl cross with five brilliants in it. Dorothea immediately took up the necklace and fastened it round her sister's neck, where it fitted almost as closely as a bracelet; but the circle suited the Henrietta-Maria style of Celia's head and neck, and she could see that it did, in the pier-glass opposite. |
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