6

THE COLLIERY GUARDIAN.

January 4, 1918.

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.

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

references	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 I?.»-» MANCHESTER

JOHN WOOD & SONS, LT“

Engineers, BARLEY BROOK FOUNDRY, WIGAN.

Fitted with

AUTOMATIC BRAKE

and Improved

FRICTION

CLUTCH

Telephone—No. “ 55 ” Wigan.

BAND”

Telegrams—“ Haulage, Wigan

“ OUTSIDE

100-H.P. “ENDLESS”

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Haulage Gears of every type.

PUMPING & AIR COMPRESSING ENGINES.