Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 76
head of the dome may be strengthened in any one of four ways. (1) It may bemade of cast-iron of proper thickness, and provided with ribs to give it sufficientstrenoth and stillness. Our experience with heads of this character has been such thatwe cannot recommend them. We consider that dome-heads… … FiCx. 5.—A BuMPED-vp Head. giving them a radius that is entirely too large. The strength of a bumped head may becalculated by the ordinary rules for spheres, as, if properly made, the head is a segmentof a true sphere. The rule for the strength of a hollow sphere is: Multiply the radius ofthe…
Locomotives · Steam-boiler explosions
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