8

THE COLLIERY GUARDIAN.

January 2, 1914.

NEWTON, CHAMBERS

™ & Co. Ltd.,

THORNCL1FFE IRONWORKS, near SHEFFIELD.

ESTABLISHED 1793.

Telegrams— " NEWTON, SHEFFIELD.”___	Telephone—No. 2200 (Two Lines).

MANUFACTURERS OF

■■■ . ■ ■ ■

■

■

PIPES & FITTINGS

For Gas, Water & Steam.

STRUCTURAL STEELWORK

Girders, Roofs, Bridges.

TANKS

In Iron or Steel.

HIGH-CLASS CASTINGS

For Machinery and Engine Cylinders.

WHEELS

BAR WEIGHTS

PUMPS

ALFRED ALLEN & SON

Matters o±	JL.TE>.

Allen’s Special Plant

for making

STONE DUST

COLLIERY AIR PIF	=ES“|
u	

(EF and COLLIERY TUBS

In IRON, STEEL and WOOD.

Lower Gornal, nr. Dudley.

Telegrams—“Allen, Loweb Gobnal.” Telephone—106 Dudley.

Read the following note on the use of Stone Dust

for preventing Colliery Explosions:—

It is Strange indeed to find how great a difficulty many colliery officials have
had, and have, of grasping the ease of application of this preventive. They have
no difficulty whatever in coining to an understanding about water, but with dust
it seems quite another thing, whereas in principle the two may be looked upon in
exactly the same light. If, mentally, incombustible dust is substituted for water,
and regarded as a quencher, the whole difficulty disappears. Pour a stream of
water upon a fire, and the flame is put out. Pour also a stream of dust upon it,
and the same result follows. Moisten coal-dust with water, and it cannot be
inflamed. Do so with incombustible dust, and there is the same effect—
with this important difference, however : coal-dust wetted with water will
dry again ; but when “ wetted ’’ with incombustible dust it will be safe for
ever. By the rapid absorption of heat both water and incombustible dust become
quenching agents, and act as oxygen excluders. The use of water depends on the
continued care of human agency, which may, and does fail, but the guarding care
of incombustible dust is automatically constant. Let every cranny and ledge in
both roof and sides therefore contain incombustible dust rather than coal-dust, and
when once the first-named is in place, there will be no room for the latter ; it will
remain always on guard, a perpetual watcher against the miners’ fiery enemy.—
Mr. W. C. Blackett, Inst. Mining Engineers, April 12th, 1913.

Merry weathers’ Patent

“HATFIELD PUMP

MER9YWEATHRB

LONDON

For Fire Protection,

Boiler Feeding,
Draining, &c.

COMPACT. LIGHT.

ECONOMICAL.

Can be driven by any motive power.

An Engineer writesI am pleased to inform you that the ‘ Hatfield ’
Pump is working splendidly. I have never had the least trouble with it in
any way since it was fixed.’’

write for pamphlet 193p.

MERRYWEATHER & SONS,

Don’t delay,

write at once for full particularsI

Edgar Allen & Co. Limited,

IMPERIAL STEEL WORKS,

SHEFFIELD.

WTAPS of the British Coalfields.

-*■*-*■	1. Scotland. 2. North of England. 3. South Wales. 4. North

Midlands. 5. South Midlands. Sheet, 4s. each; Mounted on Cloth on
Rollers, or in Case. 6s. each.—THE COLLIERY GUARDIAN CO. LTD.
50 & 31 Fumival-street, Holborn, London, E.C.

J.B.

, TREASURE

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