Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 389
boilerover 36 in diameter, many lap seam boilers still remain in high pressureservice. The lap seam crack is found in the overstressed material of one ofthe sheets where it is hidden by the lap of the other sheet forming theseam. Even at the start the shallow fissure in the surface of the platemay… … Figure 2 that when the fracture finally pierces the plate at one point, making itspresence known by leakage there, the sheet may be on the verge ofbeing torn asunder by steam pressure from girth seam to girth seam.In fact, such failure has occurred in many cases simultaneously withthe first…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
