July 19, 1918.

THE COLLIERY GUARDIAN.

109

By Tests The Best

“SINGLE HOOD”

RESULT OF LATEST TRIAL

COAL 0 <Qo/ INCREASE
SAVED & I JJ /° EVAPORATION

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



AUTOMATIC DUMPING WITH MONOCABLE SYSTEM.

fl-5







ROPEWAYS LIMITED,

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

IIIIIIIIIIIIIIIIIIIIIIIIIIH 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.

1
a



TURBON.

The LATEST THING in FANS.

Equally suitable for Hine 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.,

TURBON PATENT FAN CO. LTD.,

34,	Street, S.W. 1. LLANELLY.

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 “FLOUR” OR IMPALPABLE

MAXIMUM FINENESS.	POWDER.

MAXIMUM OUTPUT.

MINIMUM POWER.

MINIMUM WEAR AND TEAR.

No Auxiliary Apparatus required for

Finishing the Product.

Heavy Construction.

OVER 4,000 GRIFFIN MILLS INSTALLED.

Also extensively used for grigdins'

COAL. LIMESTONE. PORTLAND CEMENT.

PHOSPHATE ROCK. ORES OF ALL KINDS.

Full particulars on application to—

BRADLEY PULVERIZER CO.,

37, WALBROOK, LONDON, EC.4