Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 86
thePratt & Whitney Company, is illustrated in Fig. 7; it beingused with a taper mandrel, which is not shown. This, it willbe noticed, has an encircling, overhanging flange, which bearsagainst the tube sheet, acting as a gauge to locate the beadingend of the tool, and so bringing the bead…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
