May 4, 1917.

THE COLLIERY GUARDIAN.

871

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.

E33NOMIOER

&

1.

£	. -i ■

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 t SON L!

Economiser Works, WAKEFIELD.

Steel Underframe

Railway Car-
riages, Tram ars,
and Wagons of
every description
for Hire and Sale
by Immediate or
Deferred Pay-
ments. Ironwork,
Wheels and Axles.

WAGONS.

Also Wagons with Oak Underframes

Makers of HYDRAULIC PRESSED BOSS
and other WHEELS and AXLES.

PRESSED STEEL BOGTE3S.

Wagons for
Hire, capable of
carrying Six,
Hight and Ten
Tons, part of
which are con-
structed specially
for Shipping pur-
poses. Wagons
in Working Order
maintained by
Contract.

SECOND-HAND BALLAST WAGONS FIT FOR MAIN LINE TRAFFIC.

Sole Manufacturers of Dean & Churchward’s “ EITHERSIDE
BRAKE,” and Marillier’s Patent “ INSTANTER COUPLING.*

The Birmingham Railway
Carriage & Wa^on Co. Ltd.,
WORKS : SMETHWICK, BIRMINGHAM.

Telegrams—“ Carriage, Smethwick.”	Telephone—No. 296 Smethwick (4 lines).

MECHANICAL ENGINEERING OF COLLIERIES. T.c.peters.

Vol. I., Price 2is. net (By post 21a. 8d?.	Vol. IL, Price ios. 6d. net (By post Ila.).

SUPPLEMENTARY VOL.-Price ios. 6d. net (By poet Ila.).

THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C 4

Patent No. 7638. and Patents Nos. 7241 and
17607 applied for.

12

RAISE)

Slower
.STEADILY,

9\
k 8

'raise^K
.'STOP/W

WINDING
SIGNALS
“ NON-CUMULATIVE.”

DAVIS’S Self-Contained
SOLENOID BELL
with DIAL INDICATOR.

Simple, Efficient, Inexpensive.
SEND FOR LIST 41V.

JOHN DAVIS & SON
(DERBY) LTD.,
All Saints Works, DERBY;

& 17. Victoria St., Westminster, London, S.W. 1

Phone—240 Derby, Telegrams—“ Davis, Derby.’

NEWTON, CHAMBERS

“ & Co. Ltd.,

THORNCLIFFE IRONWORKS, near SHEFFIELD.

ESTABLISHED 1793.

Telegrams—“ NEWTON, SHEFFIELD.”	Telephone—No. 2200 (Two Lines).

MANUFACTURERS OF

- ■ 7

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PIPES & FITTINGS

For Gas, Water & Steam.

STRUCTURAL STEELWORK

Girders, Roofs, Bridges.

TANKS

In Iron or Steel.

HIGH-CLASS CASTINGS

For Machinery and Engine Cylinders.

WHEELS

BAR WEIGHTS

PUMPS