June 1, 1917.

THE COLLIERY GUARDIAN.

1053

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.

•©

-■L

ONE WAGON

COAL

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.

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

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

Steel Underframe
WAGONS.
Also Wagons with Oak Underframes
Makers of HYDRAULIC PRESSED BOSS
and other WHEELS and AXLES.

PRESSED STEEL BOGIES.

SECOND-HAND BALLAST WAGONS FIT FOR MAIN LINE TRAFFIC.

Sole Manufacturers of Dean & Churchward’s “ E1THERSIDE
BRAKE,” and Marillier’s Patent “ INSTANTER COUPLING."

The Birmingham Railway
Carriage & Wagon Co. Ltd.,
WORKS : SMETHWICK, BIRMINGHAM.

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

MECHANICAL ENGINEERING OF COLLIERTeS. t. c. hWs.

Vol. I., Price ais. net (By post 21s. 8d.L	Vol. 11., Price ios. 6d. net (By post Ils.).

SUPPLEMENTARY VOL—Price ios. 6d. net (By post Ils.).

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

LOWER

7 RAISE,
'STESDILYj

RAISE
^STOP.

P10WER

.STEADILY^

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

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.”

The Danger of Overwinding

owing to the brakes failing to act at the critical moment, may be obviated by
having your brakes fitted with Ferodo linings. Possessing a very high co-efficient
of friction, Ferodo fabrics will pull up your engines in less time and with greater
certainty than wood blocks or metal brakes. They permit of faster winding
without the slightest danger.

The adoption of Ferodo brake blocks on the Underground Railways of London
has resulted in the quickening of the service from 4 minutes to II minutes—
convincing testimony of the efficiency of Ferodo linings. If this saving of time
can be effected on the trains, is it not evident that a proportionate saving can
be effected in your winding ?

CLUTCH AND BRAKE LININGS.

Contractors to the War Office and Admiralty, London General Omnibus

Co., & Underground Electric Railways of London & Paris. List H. from

THE HERBERT FROOD COMPANY LTD.,

’phones—19 & 20 chapel.	Works—CHAPEL-EN-LE-FRITH.	wires-** friction, chapel.”

We hold Stocks at LONDON, BIRMINGHAM, BELFAST, BRISTOL, CARDIFF, EDINBURGH, GLASGOW, LIVERPOOL, MANCHESTER & NEWCASTLE.

Agents for India: THE ASBESTOS & BELTING CO., 3 & 4, Waterloo Street, CALCUTTA.

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