Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 323
the mines. It is thereforerecommended that proper steps be taken to insure that clean aironly be drawn into the system. It might be pointed out in thisconnection that air taken from out of doors will probably be cleanerthan air from inside and will most likely be cooler, and can thereforebe handled… … C u u u <n u > J 5 D to N 2 > i< r < J J2 > b.k J u u or < > 0 < vr 2 J z u to b. -1 LI 0 di X<0 3 ufltr ZZ u, a I 0 o t1 U or ai j u] V 0 <n c/» kJ tf 0. Z 0 o or < u. o Of K lf> > (J 5 > ido < > Z < U Z u > Z r „ Ctr u.0 0 Z if) • D .- u cO…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
