March 16, 1917.

THE COLLIERY GUARDIAN.

555

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’ 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 Keppers' Coke Oven and Bye-Product Co.

301, GLOSSOP ROAD, SHEFFIELD.

Save Money - Save Coal - Save Steam

By adopting FORREST’S PATENT AUTOMATIC

Cylinder DRAIN COCKS
on your Compound, Winding, Hauling, and all
your Stationary Engines, Steam Winches, &c.

(Thousands in use), now fixed on most new Engines
turned out by leading Engineers.

The Safest Automati; Drain Cock ever fixed on Com-
pound Condensing Engines, most positive in action.

Makers of High-class Gunmetal Gland Taps.

Wheel Valves, &c,

For Prices, Particulars and Testimonials, apply Sole Makers,

Class B

MINERS’

SAFETY LAMPS.

APPLETON & HOWARD, Br"EsSe7:."d ST. HELENS, LANCS

Contractors to tiie War Office.

&

ia.200

,nv.-.;

Established 1800.	—	Telephone No. 5 77

BRASS TIME CHECKS

JOHN LAWSON A SONS,

Manufacturers of every kind of

STEEL STAMPS, LETTERS,
FIGURES, BRANDS, STENCIL

PLATES, Ac.

Roebuck Letter Works, 26, Carver Lane, SHEFFIELD.

SPECIAL Self-contained MACHINE for CORRECT GRINDING of

STONE-DUST

For FIERY WORKINGS.

BRICKMAKING
MACHINERY

Suitable for COLLIERY SHALES.

Richard Scholefield, Eg*, Leeds.

Phone 1513.	ENQUIRIES SOLICITED. Wire “Brick, Leeds.”

Flame Lamps

FOR
THE OFFICIAL
AND THE
WORKING MINER,
With or without Electric Ignition.

Electric Lamps

WITH

Alkaline or Lead Batteries.

LAMP CABIN EQUIPMENTS.
UNDERGROUND RELIGHTERS.
LAMP STANDS.
LAMP BENCHES.
RIVET MOULDS.
LOCKING & UNLOCKING MACHINES.
LAMP CLEANING MACHINES.

SEND FOR LIST Ro. 41 U.

JOHN DAVIS & SON

/nav4iirl I TH ALL saints works, derby;

lUul Uw I 1 Uag & 17, Victoria St., Westminster, London, 8.W.

“	9 Telegrams—“ Davis, Derby.” Telephone—240 Derby.