Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 441
Floor Lc-vol … Bed RocK., Fig. 2. When the soil will permit it, the excavation itself may providethe form for pouring the concrete. If the ground is not firm enoughfor this, wooden forms must be built. Battered or sloping slides maybe used when it is desired that the foundation have additional spreador bearing…
Locomotives · Steam-boiler explosions
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
