August 16, 1918.

THE COLLIERY GUARDIAN.

351

HOPKINSON

BOILER MOUNTINGS & VALVES

FOR HIGH PRESSURE AND SUPERHEATED STEAM.

R.D.S. STEAM TRAP
FOR ALL PRESSURES

11N ’ iI H
DISCHARGE
^31110

HOPKINSON R.D.S. STEAM TRAP
FIGURE No. 9034.

NO LEAKAGE.

J. HOPKINSON I CO. L HUDDERSFIELD.

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

No. 399.