February 4, 1916.

THE COLLIERY GUARDIAN.

213

PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield.

Speciality—

Induced Draft Fans.

COAL SCREENING» CONVEYING



'T'HE Cost of a “ Sirocco ” Induced Draft Plant
is about 30 to 40 % of that of a Chimney of
equal capacity. The power to drive the Fan varies
from ;j to 3 X of the total power generated, while
the saving frequently amounts to from 15 to 20 X.

V

V

*

If

SECTlOh OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER.

DAVIDSON & Co. Ltd.,

Sirocco Engineering Works,

BELFAST.

CONSIDERABLY OVER

inn munw

IUU I LHH I 0 AND THE colonie<

Estimates and Designs on application.

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



Walter Scott Ltd

Leeds,

LEEDS STEEL WORKS,

England



MANUFACTURERS OF

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

mao

/tub

/ BOLTS
fcups,$9

Union
Brand I

HOWARD STREET

Example of 10 in. x 6 in. x 42 lb. R.S. Joists curved for Framework to Roadway.

Pit Head Frame.

Erected in Works

for inspection.

B / *
F J®

h ®



ROLLED STEEL JOISTS for PIT PROPS,
FRAMEWORK TO ROADWAYS. &c.

STRUCTURAL STEELWORK FOR BUILDINGS, Ac.

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.