method of bunking, under which a steam pressure is slowly raised, is a decidedly dangerous one, because a little crown sheet of the dome of one of the two boilers (which | tion of motion would be toward J, hence the direction of motion of the two would to a great extent coincide. That this view is… … thrcugh a distance of its vertical height from the hole at I, or in this case 11 inches only; hence to the amount that C would expand jn 4 inches in length it would push against RIVET, JOINT, AND BRACE-END, VERTICAL SECTION OF DOME, the crown sheet and help the steam to lift the crown sheet, and…
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