August 2, 1918.

THE COLLIERY GUARDIAN.

213

WET SHAFTS

MADE WATERTIGHT BY OUR CEMENTATION PROCESS.

SAVES COAL and LABOUR and INCREASES OUTPUT

BY DOING AWAY WITH PUMPING.

Llay Hall Collieries, Wrexham, 2 wet shafts, linings cemented.
Monk Bretton Colliery, Barnsley.

Wrexham and Acton Collieries, 2 wet shafts, linings cemented.
Wigan Coal and Iron Co. Ltd., Parsonage Colli ary, Leigh, Lancs., 2 wet shafts, linings
references:	cemented.

Risehow Colliery Co. Ltd., Flimby, 2 wet shaft linings being cemented.
Pinxton Collieries Ltd., Pinxton Collieries, Alfreton, 1 wet shaft lining being cemented.
John Brown & Co. Ltd., Rotherham Main Colliery, 2 shafts cemented.

SHAFT SINKING

BY FREEZING OR CEMENTATION.

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

SIMON-CARVES L* MOUNT ST

Phone: 8200 City, Manchester (8 lines).

Telegrams:

“ Simcar, Manchester.”

AUTOMATIC DUMPING WITH MONOCABLE SYSTEM.

ROPEWAYS LIMITED,

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

IIIIIIIIIIIIIIIIIIIIHIIIIII CONSTRUCTORS OF |||||||||||lllllllllllllllll

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.

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.,

HDIEEIll 1111 I Q For Producing
Unlrrlll 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 Required
Dust from South Wales Shale—	1 to 11 tons upwards 83 °/o	25

Dust from Yorkshire & other Shale—1 to 11 tons upwards 87 °/o	25

TURBON PATENT FAN CO. LTD.,

LONDON Addrena—	w-	w-T-y^ -y ■y

34, Viotorl* Btveet, S.W. 1. A-d I d f'VJN JCd Id 1 d JL •

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, Wai brook, LONDON, E.C. 4.