May 2, 1913.

THE COLLIERY GUARDIAN

939

--- THE ----

Koppers’ Coke Oven
has been proved to be the most successful on the market, as is evidenced by the fact that in
the comparatively short period of ten years orders for over 10,000 Ovens have been placed
with us, of which number over 4,250 are repeat orders. These orders represent a capital
cost of over	_

£8,500,000.

-- SIMILAR SUCCESS ATTENDS THE INTRODUCTION OF -

KOPPERS’ NEW SYSTEM OF

BYE-PRODUCT RECOVERY.

In the New System the Scrubbing process is entirely dispensed with, and the Ammonia is
recovered direct from the Gas in the form of Sulphate.

ADirAgJTAOES OF IMEW SYSTEM

Effluent Liquor reduced by 50 per cent, and upwards.	Consumption of Water is considerably Reduced.

Great Saving in Steam Consumption.	Less Labour Cost.

Greater Yield of Sulphate and Benzol.	Plant is Simpler to Operate, and requires less Supervision.

Plants already at work and under construction to deal with the Gases evolved from upwards of

25,000,000

tons of coal per annum.

Full Particulars on Application to—

THE KOPPERS’ COKE OVEN AND BYE-PRODUCT CO.,

Telephone Nos. 1935 & 1331 (two lines). 301, Glossojp Road, SHEEHF'inEIst).	• ‘ KOCtiS? s’h EFF1ELD.

EDWIN LEWIS & SONS,
WOLVERHAMPTON.

Telegrams—“Lewis, Wolverhampton ”
Telephone— No. 15 Wolverhampton.

WORKS-

Patent Iron Tube Works, Monmore Green.

Britannia Tube Works, Ettingshall.

London Office—143, CANNON STREET, E.C.

Liverpool Warehouse 58, South John Street.

■‘Acme

TUBES

OF ANY SIZE

For Compressed Air, Water or
Steam,
or any description of

COLLIERY WORK.

Original Inventors of Loose Flanged Tubes.

DEFER ORDERING

MINERS’

ELECTRIC LAMPS

UNTIL SEEING

Stand No. 104, Row J,

AT THE GREAT

MINING MACHINERY EXHIBITION,

ROYAL AGRICULTURAL HALL,

LONDON, MAY 29th to JUNE 7th.

M.S. Electric

Gas Detector Lamps.

Bound in Leather.	Price 3s. 6d. net.

SUGGESTED RULES

FOR

RECOVERING GOAL MINES AFTER
EXPLOSIONS AND FIRES.

By W. E. GARFORTH.

THE COLLIERY GUARDIAN CO. LTD.,

30 & 31, Furuival Street, Holborn, London, E.C.

BRIQUETTE

t MACHINERY.

NEW PATENTED

- IMPROVEMENTS.

jF- HIV	'

R. MIDDLETON,

Sheepscar Foundry, Leeds, England.

SOLE PATENTEE AND MAKER.

Telegraphic Address—“ Hydraulic, Leeds.”

Telephone—No. 214 Leeds.

“ABC” 5th Edition, and Lieber’s Telegraphic Codes used.