FEEau.u* 18, 1916._THE COLLIERY GUARDIAN._343

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’ 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.,

..37:“,?™’.".”;...,	30i, glossop road, Sheffield.

SELF-CONTAINED MILL Producing

BUOYANT, MIXED or COARSE

Dust at one Operation, from
Run of Mine Shale.

WM.

20 MILLS
SOLD THIS YEAR.

Several Repeat Orders.

JOHNSON & SONS (LEEDS) LTD., Armley, Leeds

Specialities : CRUSHING, GRINDING and SCREENING, BRIQUETTING, CEMENT and BRICKMAKING MACHINERY.

WALKER BROS. (Wigan) Ltd.,

A PAIR OP COMPOUND CORLISS TWO-STAGE
AIR COMPRESSING ENGINES

- 1 *

Its -

Air Compressing and
Blowing Engines,

with LIGHT DISC VALVES to
NEW PATENTS.

TWIN TANDEM COMPOUND WINDING
ENGINES.

Ml

.■M -

T Wbf •

■■'■■■ • ■ ■L •?.

. * ft / t 'W . 4 I

'	______........,.. i

“INDESTRUCTIBLE” TYPE VENTILATING FANS for Steam or Electric Driving

WINDING. HAULING AND GENERAL MINING MACHINERY.

PAGEFIELD IRONWORKS, WIGAN.

NEW BROAD STREET HOUSE, E.C.