May 11, 1917.

THE COLLIERY GUARDIAN.

923

Koppers’ Coke Oven

Is undoubtedly the most successful Bye-Product Oven on the market.

Since its introduction a little over 10 years ago there have been built

15,000 KOPPERS’ OYENS.

KOPPERS’ OVENS ARE AT WORK HEATED BY
PRODUCER GAS AND BLAST FURNACE GAS.

KOPPERS’ DIRECT RECOVERY PROCESS

IS THE SIMPLEST AND MOST EFFICIENT
SYSTEM OF AMMONIA RECOVERY.

PLANTS ERECTED FOR THE RECOVERY OF
BENZOL & TOLUOL, FOR TAR DISTILLATION &
THE MANUFACTURE OF SULPHURIC ACID.

Full particulars on application to -

The Koppers’ Coke Oven and Bye-Product Co.,

301, GLOSSOP ROAD, SHEFFIELD.

JOHN WOOD & SONS, L™



Engineers, BARLEY BROOK FOUNDRY, WIGAN.

Telephone—No. “ 5 5 ” Wigan.

Telegrams—“ Haulage, Wigan.

Fitted with

AUTOMATIC BRAKE

and Improved
“ OUTSIDE-

BAND”
FRICTION
CLUTCH.

100-H.P. “ENDLESS”

MOW J S0K5 i

‘O-

Haulage Gears of every type.

WINDING, PUMPING & AIR COMPRESSING ENGINES.