February 15, 1918.

THE COLLIERY GUARDIAN.

313

WET SHAFTS

MADE WATERTIGHT BY OUR CEMENTATION PROCESS.

SAVES COAL and LABOUR and INCREASES OUTPUT

BY DOING AWAY WITH PUMPING.

REFERENCES

Llay Hall Collieries, Wrexham, 2 wet shafts, linings cemented.

Wrexham and Acton Collieries, 2 wet shafts, linings cemented.

Wigan Coal and Iron Co. Ltd., Parsonage Colliery, Leigh, Lancs., 2 wet shafts, linings
cemented.

Risehow Colliery Co. Ltd., Flimby, 2 wet shaft linings being cemented.

Pinxton Collieries Ltd., Pinxton Collieries, Alfreton, 1 wet shaft lining being cemented.

SHAFT SINKING

BY FREEZING OR CEMENTATION.

Llay Main Collieries, Wrexham, 2 shafts sunk by Freezing.

SIMON-CARVES L’ mount st., MANCHESTER

Phone: 8200 City, Manchester (8 lines).	Telegrams : “ Simcar, Manchester.”

AUTOMATIC DUMPING WITH MONOCABLE SYSTEM.

I

iJi!

i’i:





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.

c Telephone—12780 Central.	Telegrams—“Ropeways, London”

AUTOMATIC DUMPING WITH BICABLE SYSTEM.

a

TURBON.

The LATEST THING in FANS.

Equally suitable for Mine 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.,

t-ONDONT Addresn-	-w-

viotoM* street, s.w i. JLjJUlAJN	It •

VOICES Al BAI I I Q For Producing
UliIrrlN IWILLO stonedust.

No. 6 REPORT OF THE EXPLOSIONS IN MINES COMMITTEE,
whilst recommending a minimum of 50 °/o passing a 200 x 200 sieve, says
emphatically“ THE FINER THE DUST THE BETTER," con-
sequently, STONEDUST PRODUCED BY THE GRIFFIN MILL
SYSTEM IS THE MOST EFFICACIOUS PRODUCTION FOR

THE PURPOSE, SEEING IT PREPARES:—

Percentage Horse
Output per hour	Passing Power

200 x 200 Sieve Req uired
Dust from South Wales Shale— 1 to tons upwards 83 °/o	25

Dust from Yorkshire & other Shale—1 to 1 i tons upwards 87 °/o	25

No other System of Pulverizing can approach the
GRIFFIN & GIANT GRIFFIN MILL
for Low Cost of Grinding and Fineness of Product.

---- FOR FULL PARTICULARS, APPLY -

BRADLEY PULVERIZER C?

37, Walbrook, LONDON, E.C. 4.