June 9, 1910.

THE COLLIERY GUARDIAN.

1119

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.

301, GLOSSOP ROAD, SHEFFIELD.

MECHANICAL ENGINEERING OF COLLIERIES.

Vol. I., Price 2is. net (By post 21s. 8d.). Vol. II., Price ios. 6d. net (By post Ils.). Supplementary Volume, Price ios. 6d. net (By post Ils.).

LONDON THE COLLIERY GUARDIAN’ COMPANY LIMITED, 30	& 31, Fuvniva.1 Street, Holborn, E.C.

Brand

Telephone	Tel* Address •

Bell: 829.	“Vinco, Glasgow.”

“Vinco”

Miners’ & Sinkers’

OILSKIN CLOTHING

A Special Feature. At Keenest Prices.

Everything in Oilskins for Town & Country Wear.

M. BARR & Co. LU.

83, Hutcheson St., GLASGOW.

Contractors to the Admiralty &
N'u.m.evou.s Corporations.



HAMON PATENT

Cooling Towers

Hamon Bros

Belgian Engineers,

94, Rue St. Lazare,

PARIS.

Agent—
GEORGE DESCAMPS,

36, Abbey dale Rd. South,
SHEFFIELD.



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

Giving a height light at the end
of the shift = 14 C.P.

iS TYPE nBE:G_ 0

- N?

t, MA f® -R 5	s J

Telephone:	Telegraphic Address:

No. 7 Aberdare.	“Lamps, Aberdare.”



Approved (Flame)
SAFETY LAMPS

To meet the requirements
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.