Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 75
o be regarded as a unit, inasmuch as the entirejoint could still be considered to be made up by a repetition of these longersections, or units. But it is usual to use the word unit to signify thesmallest portion of the joint that fulfills the given condition of being sufficient,by continued…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.