April 27, 1917.

THE COLLIERY GUARDIAN.

833

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.

....TSr.'X;..,,	30i, glossop road, Sheffield.

f AC<

“The shaftman should Bf.’lf
have had a proper ap-
pliance for his safety.
Write to Mr. Hanley,
he’ll send you a

HOLDEMRITE

and trust your judg-
ment. It’s the right
thing for shaftmen.”

(Mines Inspector to
Director.)

SAFETY FIRST

$

MACHINE CUT GEARING.

Double Helical Staggered or Chevron.

Reducing Gears. Haulage Gears.

Time Recorders &. Recording Instruments.

Watchmen’s Watches.

THE LEWELLVN MACHINE CO., Bristol.

A. HANLEY, 21, Alpha Road, Bristol.

J. S. UNDERWOOD s 0”

Cotton Mill Row, SHEFFIELD.

Telephone-

\	3573.

Telegrams—	/

METALLOID./ X

ENQUIRIES 7	& A

Solicited, y/

/ \

SF. ,ron’ \

Steel and \
yrMetal Merchants,

“HALLITE”

H igh - Pressure Steam Jointing.

STOCKED BT

Millfurnishers, Ironmongers & Shipchandlers, &c.

HALL & HALL, 47, Leadenhall Street, London, E.C.

Telegrams—“ Tutd*. London ” Telephone—Avenue 6366 (3 ’ines).

The Cambrian Approved Double
Glass Lamp. No. 1 C.G.

rI
N

t, I

Giving a bright light at the end
I	of the shift -14 C.P.

Telephone:	Telegraphic Address:

No. 7 Aberdire.	“Lamps, Aberdare.”

Approved (Flame)
SAFETY LAMPS

To meet the reguirements
of the new Mines Act.

The CAMBRIAN

Fitted with Magnetic, Pneu-
matic, or Lead Locks, Electric
Ignition, and Double Gauzes.

Our Flame Safety Lamps give
a greater Candle Power than
any Miner’s Electric Lamp.

MAKERS OF THE

NEW MAGNET UNDERGROUND

PATENT SAFETY LAMP RELIGHTERS.

E. THOMAS &
WILLIAMS Ltd.,

Cambrian Lamp Works,

Aberdare, South Wales.