May 10, 1918.

THE COLLIERY GUARDIAN.

[supplement PAGE IX.].

969

---- THE ___

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 ANO 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.

GEARING.

SPUR,

WE HAVE THE LARGEST AND BEST EQUIPPED RELIEVING PLANT IN THE COUNTRY.

. HIGH SPEED STEEL

HOBS

o

o

0

TWIST

DRILLS.

FOR

SPIRAL, AND WORM



SCREWING
APPARATUS.

MACHINE RELIEVED MILLING CUTTERS OF EVERY DESCRIPTION.

BttWM 0______________

MWCWSTONGWHinVORTHoG

MANCHESTER,.

OPENSHAW,



telegrams:- whitworth, openshaw. trade

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