January 18, 1918.

THE COLLIERY GUARDIAN.

149

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.

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 & SON L"

Economiser Works, WAKEFIELD.

THE BRITISH ROPEWAY

T.u^en.r.ni^o	7, MINCING LANE,

a





DISPOSAL OF PIT REFUSE.

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Are you short of Wagons ?

AN

AERIAL ROPEWAY

Will overcome these difficulties.

Send us your enquiries.

ENGINEERING Co. Ltd.,

LONDON, E.C. 3.

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.

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HIGH EFFICIENCY.

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BEST WORKMANSHIP.

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MINIMUM MAINTENANCE

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it

MOTOR-DRIVEN AIR COMPRESSOR.





BELLISS

Telegrams :
“BELLISS, BIRMINGHAM.”

& MORCOM LIMITED,

BIRMINGHAM.

London Office :

8, VICTORIA STREET, S.W. 1.