February 1, 1918.

THE COLLIERY GUARDIAN.

215

irms f.cowoMiSER

SAVES ONE WAGON

OF COAL

IN EVERY FIVE.

Reduces the Coal
Consumption 15 to
20 per cent.

Every Ton of Coal
saved by the Econo-
miser at a Colliery
is another Ton for
Sale at Market Price.

Write for Pamph let “BQ” to

E. GREEN & SON LTD.

WAKEFIELD, England.

Turn your pit refuse into
steam by using

“Bennis” Machine Stokers



HALLITE

HIGH PRESSURE STEAM

AND

MOTOR JOINTINGS



STOCKED BY

Millfurnishers, Ironmongers & Shipchandlers, &c.

HALL & HALL, 47, Leadenhall Street, London, E.C.3

Telegrams—“ Turps, London.” Telephone—Avenue 6366 (3 lines).

■

■

ill

AERIAL

ROPEWAYS

ANY SYSTEM.

A certain colliery installed a “ Bennis” Stoker
on one of its boilers to burn refuse fuel.
The result was an increase of 50 per cent,
on the steam output, and the immediate equip-
ment of the remaining boilers. The “ Bennis ” hand
fired furnace is specially designed for colliery work.

The British Ropeway Engineering Co. Ltd.,
7, MINCING LANE, LONDON, E.C. 3,
Tele—CENTRAL 1 1250.

Ed. Bennis & Co. Ltd.,

Little Hulton, Bolton ; 28, Victoria St., London, S.W. 1.

HIGH SPEED STEEL

A.W.

PREMIER

FAMOUS

BRANDS

TRADE

MARK.

UNIFORM QUALITY FOR CUTTING ALL CLASSES
OF METALS AT HIGHEST SPEEDS.

High

Speed Steel

Twist Drills,

Milling Cutters,

, Broaches & Hobs,

Hand Screwing Apparatus
(Stock, Dies, Taps,
Chasers, etc.),

Gauges,

Measuring

Machines.

Sir W. G. ARMSTRONG, WHITWORTH & CO. LTD.,

Telephone No.:

6480 Central (6 lines).

OPENSHA W, Manchester. “Whitworth, Openshaw.