Jvse 8, 1917,THE COLLIERY GUARDIAN.1103

--- THE ___

Koppers’ Coke Oven

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

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

15,000 KOPPERS’ OVENS.

KOPPERS’ OVENS ARE AT WORK HEATED BY

PRODUCER GAS AND BLAST FURNACE GAS.

Koppers’ Direct recovery process
/S 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. -SSSTXiJSE.-

DAVIS’S DEPUTY

OR

FIRE TRYER’S LAMP

(FLAME)

Gives greatly
increased light
over ordinary
Marsaut Lamp
without the
increase of
extra parts or
consumption
of more oil.

Send for Pamphlet 41 L and
Copy of Report of Test by
Dr. HENRY BRIGGS.

GOODALL CLAYTON & Co. Lo.

LEEDS.

Telegrams :—
“ Vertical, Leeds.”

Telephone:—1982, Leeds.

MAKERS AND ERECTORS OF

SCREENING PLANTS, PICKING BELTS, SCREENS,
PITHEAD GEARS.

BUNKERS, ROOFS, STEEL STRUCTURAL WORK, &c.

JOHN DAVIS & SON

/HaithlA I Tn ALL SAINTS WORKS, DERBY ;

I UDI UV I m 1 U ■ ■ & 17, Victoria St., Westminster, London, S.W.

r	* Telegrams—“ Davis, Derby.” Telephone—240 Derby

GAS RETORT INSTALLATIONS, CONVEYING PLANTS.

Representatives:—H. L. CHESTON, Clarendon House, Boston Spa, Yorks.

W. OGDEN DAYSON. 1. Mount Street Swansea, for South WalKt