Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 78
of theplate surfaces, although the examination of a sufficient number of rivetholes usually will determine whether the steel has been so affected asto make the vessel unsafe. A refinement in use with the magniscope isa camera which may be clamped to it for the purpose of micro-photo-graphing the… … Figure i—An embrittlement defect at about 100 magnifications. Thisis what the eye sees when using the regular Hartford Steam Boilermagniscope on a highly polished wall surface of a rivet hole. or the separations may be sufficiently large to be visible to the naked eye. When such conditions are…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Catalog] (1902)](https://img.insideoutlibrary.com/img/200/ia-catalog00geob-30-96.webp)
