1236

THE COLLIERY GUARDIAN.

June 29, 1917.

THE BRITISH EXPLOSIVES SYNDICATE LTD. 124-ST VINCENT STREET GLASGOW

THAMES POWDER N° 2

Charge Limit 22 Ounces

NEEDS NO THAWING

Telephone—4560 (two lines).	Telegrams—“ Belting, Sheffield.”

RENTON HOLDSWORTH & CO. LTD.,

Belting and Rubber Manufacturers,

Offices : NORFOLK STREET.	SHEFFIELD. Works : SYCAMORE STREET.

Speciality :

CONVEYOR BELTING.

DRIVING BELTS.

from

Abolish the

Smoke Nuisance

Too much smoke from the chimneys means
waste of coal. Smoke represents the unburnt
carbon in the fuel ; and just as sure as smoke
is wasted, so the coal bill increases.

The best way to get full value from the coal
is to burn it effectively. . Introduce the correct
quantity of oxygen to the fire and you can then
have a thicker and hotter fire—quicker evapora-
tion in the boiler—and an astonishing reduction
in the volume of smoke.

CYCLONE

Induced Draught Plant

is the only efficient and economical method of
increasing the supply of oxygen to the fire.

It enables the user to utilise the waste heat
the fire and so reduce the amount of fuel
needed. In many cases it dispenses
with the extra boiler required to
take on abnormal loads. It also
makes possible the use of cheaper
1 kinds of fuel.

Our Booklet 270 F contains fac-
1	similes of letters from satisfied users

1 which conclusively uphold all our
claims for the “ Cyclone ” Induced
|A Draught Plant. Send for it.

A Matthews & Yates Ltd.,

A	Cyclone Works,

B SWINTON, MANCHESTER.

J

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Walter Scon Ltd.

Leeds,	LEEDS STEEL WORKS,	England.





MANUFACTURERS OF

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

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Pit Head Frame.

Erected in Works
k for inspection.

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Example of 10 in. x 6 in. x 32 1b. R.S Joists curved for Framework to Roadway.

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.