Section 6.—BOILERS, TYPES OF.
(See also [p. 16].)
[1966]. Boiler, with furnace for consuming town refuse. Meldrum Bros. patent, fitted with forced draught furnace.
Section 7.—BLOWING AND EXHAUSTING.
(See also [p. 20].)
[1967]. Type of air propeller, or wind turbine, not centrifugal; the air is driven parallel to the axis of the fan.