June 28, 1918.	THE COLLIERY GUARDIAN.	1313

WET SHAFTS

MADE WATERTIGHT BY OUR CEMENTATION PROCESS.

SAVES COAL and LABOUR
AND
INCREASES OUTPUT

BY DOING AWAY WITH PUMPING.

(Cost of work recouped in a few months, and permanent results guaranteed.)

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

Wrexham and Acton Collieries, Wrexham, 2 wet shafts, linings cemented.
Wigan Coal and Iron Co. Ltd., Parsonage Colliery, Leigh, Lancs., 2 wet
RGfGrCIlCGS ■	shafts, linings cemented.

Risehow Colliery Co. Ltd., Flimby, 2 wet shafts linings being cemented.
Pinxton Collieries Ltd., Pinxton Collieries, Alfreton, one 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.

BY PRODUCT COKING PLANTS

440 OVENS AT PRESENT UNDER CONSTRUCTION IN ENGLAND.

COAL WASHERS

(“BRITISH BAUM” SYSTEM).

4 £ PLANTS WORKING OR UNDER CONSTRUCTION IN GREAT BRITAIN.

BRITISH MANUFACTURE THROUGHOUT.

SIMON-CARVES L"» MANCHESTER

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