January 4, 1918.

THE COLLIERY GUARDIAN.

By Tests The Best

“SINGLE HOOD”

'•'•c -S' ; •: • :	"

ACTUAL RESULTS OF TRIALS

INCREASE IN EVAPORATION.

These tests were carried out at one of the largest Collieries in the United Kingdom.

“PERFECTA” BOILER CIRCULATOR Ltd., 39, Victoria Street, LONDON, S.W. 1.

AUTOMATIC DUMPING WITH MONOCABLE SYSTEM.

J. I

, ,

ROPEWAYS LIMITED,

2, Eldon Street, South Place, London, E.C. 2.

IIIIIIIIIIIIIIIIIIIIIIHIIII CONSTRUCTORS OF ||||||||||||||||||||||||||||

Aerial Ropeways

On the “ ROE ” Systems.

FOR the transport of all classes of
material over any ground, and
for the formation of dumps, spoil banks,
&c. Installations at present in opera-
tion with carrying capacities of 200
tons per hour and lengths of 30 miles.

Telephone—12780 Central	Telegrams—“Ropeways, London”

AUTOMATIC DUMPING WITH BICABLE SYSTEM.

/ - * I
: • 11

<4 $>'■<

TURBON.

The LATEST THING in FANS.

Equally suitabla for Mina Ventilation, forced and induced
draught, or any other purpose.

Great strength, simplicity and silence.

Highest efficiency. Perfect balance at all speeds.

Suitable for all pressures.

Resists high temperatures without distortion.

No rivets in blades.

Manufactured by THE WADDLE PATENT FAN CO. LTD.,
---------------- FOR THE --____

TURBON PATENT FAN CO. LTD.,

K.ONDON AddresH-	T T 71 YUf T V ’V

34, Viotoria Street, S.W, 1. I < I S	Fd ■ 4 1 4 X •

FLOUR” OR IMPALPABLE

POWDER.

Also extensively used lor grlgdin?

COAL. LIMESTONE. PORTLAND CEMENT,
PHOSPHATE ROCK. ORES OP ALL KINDS,

PREVENT COAL MINE EXPLOSIONS
by dusting your mine with stone 'ground in the

GIANT GRIFFIN MILL,
As supplied to the leading Collieries.

Advantages—

MAXIMUM PERCENTAGE OF

MAXIMUM

MAXIMUM

Full particulars on application to—

BRADLEY PULVERIZER CO.,

c 37, WALBR00K, LONDON, E C.

FINENESS.

OUTPUT.

MINIMUM POWER.

MINIMUM WEAR AND TEAR.

No Auxiliary Apparatus required for
Finishing the Product.

j Heavy Construction.

;	OVER 4,000 GRIFFIN MILLS INSTALLED.