August 23, 1918.

THE COLLIERY GUARDIAN.

383

_SIMPLEX HEAVY SCREWED_

CONDUITS AND CONDUIT FITTINGS

SUBSTANTIAL Electric

Light and Power
Installation Material lor
Factories & Mines has been
-----developed by----
SIMPLEX CONDUITS Ltd.
in a thorough and thought-
ful manner. Design

Manufacture & Assembly
are all of prime importance
—and to each of these we

PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield.

Special Li ty—

COAL SCREENING«CONVEYING

X -.JI

—~—up**3*7

I I

II

SECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER.

CONSIDERABLY OVER



pay most careful attention.

SIMPLEX CONDUITS Ltd.

HEAD OFFICE AND WORKS:

GARRISON LANE—B’HAM.

100 PLANTS

NOW AT WORK IN
GREAT BRITAIN
AND THE COLONIES.

Estimates and Designs on application.

HAMMERS

WEDGES, PICKS, FORGINGS, &c.,
-----♦ FOR -
COLLIERIES, QUARRIES & WORKS.

Manufactured by

The PROVIDENT Steel & Tool Co.

LIMITED,
Brown Street, SHEFFIELD.

HOPKINSON
= SPRINGUS =
REDUCING VALVES

Hi will

23 /

ang1
A

It 1

■l!L i J

Bodies of Cast Iron
or Cast Steel.

Valves and Seats of
Platnam Metal.



Supplied for all
Pressures of Steam,
Water or Air.

J. HOPKINSON & CO. LTD.,
BRITANNIA WORKS,
HUDDERSFIELD.

LONDON - GLASGOW - EDINBURGH - CARDIFF
OLDHAM - BLACKPOOL - PETROGRAD - PARIS.

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No. wo. STATES - NEW ZEALAND - WEST INDIES.