846

THE COLLIERY GUARDIAN.

May 4, 1917.

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MIS
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NATIONAL PHYSICAL LABORATORY and O|	/SILICATEX to be the most efficient non-conductor extant

BOARD OF TRADE TESTS, &c , PROVE wLAu WUUL \ COTTON ) for all purposes to conserve heat and save fuel.

'WII^JQ STOP SPRE2AD OF FIRE. UN AFFECTED BY FLAME MEAT.

J. C. BROADBENT & CO. LTD., REDCAR.



J. S. UNDERWOOD & G°

Cotton Mill Row, SHEFFIELD.

Telephone-
\	3573.

Telegrams—
METALLOID./ X

/ 4^

ENQUIRIES /	A

Solicited. /$

^>t / \
'ron> X.

* j/ Steel and \
Metal Merchants,

TUBE MANUFACTURERS

EDWiN LEWIS & SONS LTD., WOLVERHAMPTON.

Works: MONMORE GREEN and ETTINGSHALL. LIVERPOOL Warehouse: 58, SOUTH JOHN STREET.

Telegrams: “LEWIS, WOLVERHAMPTON.”	Telephone: No. 1147 WOLVERHAMPTON (Private Branch Exchange).

AULD’S PATENT

STEAM REDUCING VALVES

WIRE SCREENS.

D. Liewellin Evans,

Also Makers of Special FULL BORE
Patent Steam Seducing Valves for
Blowing, Winding, Pumping and other
Engines, and for supplying Surplus or
other steam from high to low pressure
boilers, &c.	__________________

DAVID AULD & SONS,

Patentees Jjr Makers. LTD.
Whitevale Foundry, GLASGOW.

ALL

ALEX. COUSLRND &S0N,
3,MITCHELL SI, GLASGOW.

AU i
KINDS

OF !
WIRE I
SCREENS

MESHES
OF ANY
GAUGE
OF
WIRE

PROPRIETOR OF THE

Cardiff Brattice

Cloth Company,

120, BUTE ST .

CARDIFF.

AGENT FOR

Nobel's Explosives.





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THE COTTON POWDER Co. Ld

Manufacturers of Explosives for Mining Purposes.

REX POWDER

NEW PERMITTED EXPLOSIVE

For all kinds of work.

HEAD OFFICE:

24, WALBROOK, LONDON, E.C. 4

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