August 7, 1914.

THE COLLIERY GUARDIAN.

307

MINE FANS

PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield.

Speciality

GOAL SCREENING & CONVEYING

■

■ECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER.





Deliver more air at less cost for power than
the ordinary paddle blade Fan. Sirocco Fans
can be arranged for reversal of air current.

DAVIDSON & Co. Ltd.,

Sirocco Engineering Works,

BELFAST

CONSIDERABLY OVER

100 PLANTS H

Estimates and Designs on application.

Agent for South Wales: A. LEIGHTON STEYENS, 16, Fields Road, Newport, Ion.

WORK IN
BRITAIN
COLONIES

Walter Scott Ltd.

Leeds,	LEEDS STEEL WORKS.	England.

MANUFACTURERS OF

BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS,
TRAMRAILS AND PERMANENT WAY RAILS, Ac.

Pit Head Frame,
u Erected in Works
for inspection.

Example of 10 in. » tin. - 421b. R.S. Joists carved for Framework to Roadway.

ROLLED STEEL JOISTS for PIT PROPS,
FRAMEWORK TO ROADWAYS, Ac.

STRUCTURAL STEELWORK FOR BUILDINGS, 4c.

Mild Steel Blooms, Billets, Slabs, Tinbars, Rounds & Flats.

Rolls cut for Special Sections and to approved quantities.

Books of Sections and other information on application.

-J	PATENT

Sheltered Seat Try cock

1

r

I
*»

Sent on Approval

SPECIFY FIG. 6685

---- 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.

Upwards 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. HOPKENSON & Cp LD Huddersfield.

Maker* of Patent Safety Holler 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.

and Showrooms—London, Glasgow, Edinburgh, Cardiff.

Oldham, Blackpool, Paris & St. Petersburg.

are Exhibiting at the “Shipping, Engineering and Machinery
Exhibition, Olympia, September 25 to October 17, 1914.

Depots

We
No. 275.