August 25, 1916.

THE COLLIERY GUARDIAN.

347

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.

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Speciality—

COAL SCREENING (CONVEYING

&

L K*;.

SECTION OF SCREENING PLANT AT 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.

PATENT

GREENWOOD & BATLEY Ltd.,
ALBION WORKS, LEEDS.

Telephone-5200 LEEDS.	I	Telegram.-" GREENWOOD. LEEDS."

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al:

STEAM TURBINES

HIGH PRESSURE,—EXHAUST STEAM,—MIXED PRESSURE.

FROM 3-B.H.P. TO 600-B.H.P.

Part of order foi
totally enclosed gas-
proof Mining Motors
with ball bearings and
plate glass spy holes.

;xU. J*
k t W'

g 1< :	.	.

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ELECTRIC MOTORS

AND GENERATORS. A.C. AND D.C. FOR ALL PURPOSES.

SHELTERED SEAT TRYCOCK

llw

BW

SPECIFY FIG. 6685

Sent on Approval.



----For ------

WATER GAUGES.

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 Catting* kept in Stock.

We can give immediate delivery of iron and steel valves.

Illustrated Catalogue Post Free on Application.

J. HOPKINSON & C° LD

Makers of Patent Safety Boiler Mountings and 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.

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