May 18, 1917.

THE COLLIERY GUARDIAN.

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PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield.

Speciality

COAL SCREENINGsCONVEYING



Simplex Conduits9 Limited,

SECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER.





GARRISON LANE,

113-117, Charing Cross Road, London, W.C,
16, Corporation Street, Manchester.

72a, Waterloo Street, Glasgow.

61-65, High Bridge, Newcastle.

10 & 11, Denmark Street, Bristol.

BIRMINGHAM.

2.	6, White Horse Street, Leeds

96, Whitechapel, Liverpool.

14, Heathfield Street, Swansea

4, Westgate Street, Cardiff.

1, Crimon Place, Aberdeen.

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.

6% TO B% SAVING IN FUEL, or 1 2% TO 1 5% MORE STEAM

PATENT

SHELTERED SEAT TRYCOCK

>	- For -

WATER GAUGES.

SINGLE HOOD

Circulator

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

New Forms, &c.,

Recently issued under
the Coal Mines Acts.

------ Full particulars on application. -----------

THE COLLIERY GUARDIAN CO. LTD., 30 & 31. Furnival Strejt, Holborn. London. E.O. 4.

Tel. Address—

“Glen," Killamarsh.

Telephone—

Eckington No- 48.

Mining Steel.

High Speed Steel.

Coal Cutter Steel.

Chisel Steel.

Steel Castings.

Buy from the Makers-

James Glen & Co.

Killamarsh Steel Works,

KILLAMARSH, SHEFFIELD.

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.

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”

SPECIFY FIG. 6685

Sent on Approval.

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

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

Me can give immediate delivery of iron and steel valve*.

Illustrated Catalogue Post Free on Application.

J. HOPKINSON & C° LD

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-