October 6, 1916.

THE COLLIERY GUARDIAN.

649

'-X

> ■**

PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield.

SIMPLEX
WATERTIGHT
BULKHEAD
FITTINGS

are manufactured at our
Birmingham Works, in cast
iron or brass.

Supplied to Admiralty, War
Office, and Government
Departments.

Simplex Conduits Ld.,
WORKS :

GARRISON LANE,
BIRMINGHAM.

Speciality—

COAL SCREENING«CONVEYING

M

f

*

SECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER.





CONSIDERABLY OVER

inn PIAMT2

ilfli i I O and the colonies-

Estimates and Designs on application.

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

CYCLONE

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.

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
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
kinds of fuel.

Our Booklet 270 F contains fac-
similes of letters from satisfied users
which conclusively uphold all our
claims for the “ Cyclone ’’ Induced
Draught Plant. Send for it.

Matthews & Yates Ltd.,
Cyclone Works,

SWINTON, MANCHESTER.

Abolish the

Smoke Nuisance

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NS

PATENT

SHELTERED SEAT TRYCOCK





“tSwY “w

Im

SPECIFY FIG. 6685

Sent on Approval.

- For -

WATER GAUGES.

Fig. 668 5.

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.

Seif 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”

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

Upward* of 500 ton* of Standard Steel Catting* kept in Stock.

We can give immediate delivery of iron and tteel valve*.

Illustrated Catalogue Post Free on Application.

J. HOPKINSON & C° LD Huddersfield.

Makers of Patent Safety Roller Mountings anti Valves

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. 342.