March 3, 1916.	_THE COLLIERY GUARDIAN.___439

--- 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

12,500 KOPPERS’ OVENS.

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.,

Telephone Nos-	Qm 1 AQQAD DAAR QUEXCiCI n	Telegraphic Address-

tOSS & 1331 (two lines)	OK/lj ULUOOUr nUMU, □nCrrit.L.Ui	“kochs. SHEFFIELD.”

TURBON.

The LATEST THING in FANS.

Equally suitable for Mine Ventilation, forced and induced
draught, or any other purpose.

Great strength, simplicity and silence.

Highest efficiency. Perfect balance at all speeds.

Suitable for all pressures.

Resists high temperatures without distortion.

No rivets in blades.

Manufactured by THE WADDLE PATENT FAN CO. LTD.,
------------- FOR THB -------

TURBON PATENT FAN CO. LTD.,

LONDON AddreHH—	-w- w- — WTT~. -w w- -wy

34, Victoria Street, S.W.	S-i	B.4 B, <1 X •



r„de STAN LEY"*1

Please send for our “K.12” Catalogue,
and compare our prices with those of
other first-class makers.

Theodolites, Levels, Mining Dials,
Prismatic Compasses, Plane Tables,
Drawing Instruments & Drawing
Office Stationery, etc. All of the
highest quality.

Stanley’s Patent Mining Dial Telescope win
read. 90° both ways.
The most complete Dial obtainable.

The Largest Manufacturers of
SURVEYING and
DRAWING INSTRUMENTS
in the World.

W. F. STANLEY & Co. Ld.,
Head Offices & Showrooms:
286, HIGH HOLBORN, LONDON, W.C.

M. COULSON & CO. LTD.,

SPENNYMOOR,

Makers of

Coal Washers, Screening Plant, . .

Conveying, Elevating, and Crushing
Machinery, Tipplers, Tub Controllers,
. . Storage and Drainage Bunkers. . .

Replace parts and Repairs given Special Attention.	Estimates and Full Particulars on Application.

. 11!

mi—...

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