November 12, 1915.

THE COLLIERY GUARDIAN.

1009

Koppers9 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

301, GLOSSOP ROAD, SHEFFIELD. -SJXiSS-

COLLIERY
OFFICIALS’
LEATHER
CAP

Is Comfortable,
Light and Effective.

Made to fold for
Pocket
or otherwise.

Send 6/- P.O. for
Sample Cap to the
Ma Ker—

CEO. WHITE,

31, High Street Normanton, YORKS.

The Colliery Ready Reckoner and Wages
CALCULATOR. By JAMES IRELAND. “ Will be the means of
preventing many disputes between pay clerks and colliers.”—Mining
Journal. Colliery Guardian Office. 30 & 31, Furnival-street, Holborn,
London, E.C.	Cloth limp, price 1«. 6d.; post free, 1*. Id.

CORRUGATED and FLAT SHEETS and
GALVANISED GOODS; TUB & CORNER PLATES;
AIR PIPES and all Colliery Requirements.

J. SUMMERHILL & CO.,

Beaver Works, WOLVERHAMPTON.

CEMENTATION

Shaft Sinking and Drift Driving
through any kind of Water-bearing
Measures, by Improved Patent Cement-
ation and Chemical Processes.

Concrete Lining a speciality.

Feeders of water existing in Shafts or
Levels treated.

Seventeen Shafts already cemented In
England in the last two years.

Complete Estimates given on application.

ALBERT FRANCOIS,

Whitehouse Chambers, DONCASTER.

ATLAS MINING OUTFIT CO., Wlllenhall.

-----------« Specialities: ►-;-

STEEL PROPS & JIG CONVEYORS.

Our experts will
show you how

REDUCE
YOUR
TIMBER BILL.





No labour troubles,
workmen prefer
them.

They won’t have the
wood props after
they have used the
Atlas Prop-

Photograph taken in a 3 ft. 6in. seam of a Yorkshire Colliery.
BAD ROOF, FULL OF SLIPS, ROLLS, &c.

THOMPSON & CO.,

------------— WIGAN, --------------

Iron Merchants? Metal and Mineral Agents.

RAILS OF EVERY DESCRIPTION, WITH FITTINGS COMPLETE,

FOR COLLIERIES, <30 NT Fl AC TO FIS,
SOLE AGENTS IN THE DISTRICT FOR THE SALE OF

Wigan Coal & Iran Co.’s Siemens Steel Billets, Blooms, Bars, Angles, Rails, &c.

SPECIALITY: STEEL FOR WAGON COUPLINGS.

K. H. FORGE, FOUNDRY & RASIC PIG IRON. Also Spiegeleisen, Ferro-Manganese & Silico Spiegel.

Nobel’s (Gelignite, Potarite, Dynobel, Ajax Powder, Monobel No. 1, Cambrite, Victor Powder and
Co ?Ltd°S I Al Monobel; also Detonators, Electric Detonator Fuses, and all Blasting Appliances.

H aggie Brothers Ld. Wire & Hemp Ropes.

POOLEY’S PATENT WEIGHING MACHINES.

Telegraphic Address—“SPIEGEL, WIGAN.”