Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 139
s hard as granite. This pipe was originally an inch and a half indiameter internally, but it had become so filled up that the free opening at the endshown in the cut was reduced to a sort of rectangular slit an eighth of an inch wide andless than half an inch long. The sectional area of this slit… … Fig. 3. — A Feed-Pipe choked with a Stone-like Scale. fifth of the area intended by the builder of the boiler. The most troublesome form of scale is deposited in pipes that are exposed to thefire ; for in such cases the heat causes the sediment to bake on, so that it can beremoved only with a…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
