June 22, 1917.

THE COLLIERY GUARDIAN.

1193

THJE __*

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 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.

30i, glossop road, Sheffield. ■SS’JMSSS-

Walter Scon Ltd.

Leeds,	LEEDS STEEL WORKS,	England.

MANUFACTURERS OF

BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS,
TRAMRAILS AND PERMANENT WAY RAILS, &c.

Pit Head Frame.

Erected in Works
k for inspection.

Example of 10 in. x 6 in. x 42 lb. R.S. Joists curved for Framework to Roadway.

GOODALL CLAYTON & Co. Lo.

LEEDS.

Telegrams :—
“ Vertical, Leeds.”

Telephone:—1982, Leeds.

—

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w.

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MAKERS AND ERECTORS OF

SCREENING PLANTS, PICKING BELTS, SCREENS,
PITHEAD GEARS.

ROLLED STEEL JOISTS for PIT PROPS,
FRAMEWORK TO ROADWAYS, &c.

STRUCTURAL STEELWORK FOR BUILDINGS, &c.

Mild Steel Blooms, Billets, Slabs, Tinbars, Rounds & Flats.

Rolls cut for Special Sections and to approved quantities.

Books of Sections and other information on application.

BUNKERS, ROOFS, STEEL STRUCTURAL WORK, &c.

GAS RETORT INSTALLATIONS, CONVEYING PLANTS.

Representatives:—H. L. CHESTON, Clarendon House, Boston Spa, Yorks.

W. OGDEN DAYSON. 1, Mount Street Swansea, for South Wale*.