January 22, 1915.

THE COLLIERY GUARDIAN.

177

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Fig. 9.—Sectional End Elevation of Engine House.

as possible from the exhaust before it passes into the
turbines. The general arrangement of the power house,
together with the exhaust steam receivers, &c., are
clearly shown in the drawings and photographs, and the
drawing and photograph (figs. 6,10, 11 and 12) illustrates
the method by which the old battery of boilers has been
utilised as steam receivers.

The main shaft pump is of Messrs. Frank Pearn and
Company’s manufacture, and it is of the three-throw
type, with rams of gunmetal, 7 in. diameter by 15 in.
stroke. It delivers 200 gallons per minute, and is
designed for a maximum working head of 2,000 ft. The
power is transmitted from the motor to the pump
through single reduction helical gearing. The pump
barrels and valve boxes are of cast steel, group valves
being used. The bedplate is made in sections for
getting underground, and the electric motor is mounted
upon the end of it. The motor, of the General Electric
Company s manufacture, is of 160 effective horse-power,
and running at 385 revolutions per minute, and is fittej
with sliprings and brush raising and lowering gear, and
drives through a flexible coupling on to the pinion shaft

Fig. 10.—Side Elevation.



4

Fig. 12.—Feed-water Heater.

of Receivers and Feed-water Heater.

Fig. 11.—End View

Figs. 10 to 12.—Arrangement of Exhaust Pipes and Receivers.

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Ftg. 14.—Main-and-tail Haulage Gear.