April 13, 1917.

PHE COLLIERY GUARDIAN.

713

■ •• TRADE • • •

• • . MARK • •

PLOWRIGHT BROS. LTD

Brampton Iron Works, Chesterfield

AIR WASHER

Speciality—

COAL SCREENING s CONVEYING



For Cooling Turbo-Generators and
supplying clean air to Compressors.

Thorough Washing.

The air current is brought into intimate contact with
a very fine mist, and all particles of foreign matter
are removed either in the spray chamber or by means
of the scrubber plates.

Elimination of Free Moisture.

A series of carefully - designed eliminator plates
removes all free moisture from the air current, which
passes out of the Washer in a cool and pure state.

Economy in Water.

The water is recirculated, passing on its way to the
spray nozzles through two sets of Filters.

Write for Publication No. 1013 C.

DAVIDSON & Co. Ltd., Sirocco Works, BELFAST.

SECTION’OF SCREENING PLANT JATZ’BENTLEY COLLIERY, DONCASTER.



CONSIDERABLY OVER

100 PLANTS H

Estimates and Designs on application

Agent for South Wales: A. LEIGHTON STEVENS, 15, Fields Road, Newport, Mon.

WORK IN
BRITAIN
COLONIES.

f

% MORE STEAM

FUEL OIL

for industrial furnaces, Diesel engines & merchant ships.

SPECIFY FIG. 6685
Sent on Approval.

ANNALS OF COALMINING & THE COAL TRADE

By Post, 25s. 9d.	BY ROBERT L. CALLOWAY.	Price 25s. net.

The Colliery Guardian Co. Ltd., 30 & 31, Furnival Street, Holborn, London, E.C. 4

1---U----11——If

HIoIpIkIi nson,

A___________JI__________11__________II__________11__________J



SINGLE HOOD

Circulator 39, Victoria Street, London, S.W. 1

We supply a clean,
high-grade fuel oil.

Brotherton & Co. Ltd

WORKS—

Birmingham

Glasgow
Leeds
Liverpool

City Chambers,

Leeds

WORKS—

Middlesbrough

Sunderland
Wakefield
Workington

PATENT

SHELTERED SEAT TRYCOCK

...— For — |

I	WATER GAUGES.

MiKMKSiilJ	, o „

Fig. 6685.

ADVANTAGES

NO ASBESTOS PACKING
TROUBLES.

No plugs to work loose
and leave the packing faces,
causing cutting and leakage.

No circular action to cause
grooving.

Easy method of operating,
as there is no packing fric-
tion to overcome.

Is not affected by expan-
sion.

Large outlet for discharge
of sediment, &c.

Self Cleansing.

Main valve opened and
closed at atmospheric pres-
sure, which overcomes the
cutting action of the steam
and water at the point of
opening and closing.

VALVE AND SEAT OF

HOPKINSON’S “PLATNAM”

METAL.

which does not cut and score
like gunmetal & other alloys.

Upward* of 500 ton* of Standard Steel Castings kept tn Stock.
We can give immediate delivery of iron and steel valves.

Illustrated Catalogue Post Free on Application.

J. HOPKINSON & C° LD Huddersfield.

Maker* of Patent Safety Boiler Mounting* and Valve*

For High Pressure Superheated Steam, High-class Exhaust and Water Sluice

Valves for Condensing Plants, <&c., Automatic Exhaust Valves, Reducing
Valves, Steam Traps, &c., &c.

Depots and Showrooms—London, Glasgow, Edinburgh, Cardiff,
Oldham, Blackpool, Paris & Petrograd.

No. 374.