March 15, 1918.

THE COLLIERY GUARDIAN.

[supplement PAGE IX.]

561

A high return on outlay assured
with coal at present abnormal
price.

Initial cost of Economiser repaid
in many instances in two to three
years.

A reduction in the coal account
means an increase in dividend.

Steaming capacity of boilers in-
creased.

SAVES ONE WAGON

OF COAL

IN EVERY FIVE.

i-i

Reduces the coal consumption
15 to 20 per cent.

Every ton of coal saved by the
Economiser at a colliery is another
ton for sale at market price.

Coal saving commences imme-
diately Economiser is connected
up.	_=^==

Write for Pamphlet “ B.Q.” to:

E. GREEN 4 SON L!

Economiser Works, WAKEFIELD.

" SHEFFIELD
'PHONE: No.,3720.

MUNITIONS.
IRON, STEEL, BURNT METAL?
TURNINGS, AND ANY OBSOLETE PLANT.

STEAM, MOTOR, BELT, OR ROPE=DRIVEN

AIR & GAS COMPRESSORS

From 50 to 15,000 cubic feet

FOR

COLLIERIES, MINES, Etc.

STEAM-DRIVEN AIR COMPRESSOR.



ADVANTAGES

SIMPLICITY.

RELIABILITY.

DURABILITY.

HIGH EFFICIENCY.

SELF-LUBRICATION.

BEST WORKMANSHIP.

SMALL FLOOR SPACE.

MINIMUM MAINTENANCE

I

MOTOR-DRIVEN AIR COMPRESSOR.



BELLISS

Telegrams :
“BELLISS, BIRMINGHAM.”

& MORCOM

BIRMINGHAM.

LIMITED,

London Office:

8, VICTORIA STREET, S.W. 1.