April 27, 1917.

THE COLLIERY GUARDIAN.

825

HOPKINSON’S

“RDS” Steam Trap

PATENT

SUITABLE FOR ANY PRESSURE.

A large number of these traps have been in use for several years, and our experience has been so satisfactory that we have every
confidence in recommending them to steam users. The workmanship and material are of the highest quality, and is altogether a
far superior article to the many cheap bucket traps now on the market.

SPECIAL

DESCRIPTION.

FEATURES.

Simplicity.

Reliable.

Quick in Action.

No Dribbling.

Strong Intermittent

Water

Quick Cut-off.

for every 1 lb. Steam
Pressure.

Fitted with Valve and
Seat of

Hopkinson’sc PlatnanT
Metal, which is five
times harder than .
bronze and admirably
suitable for with- .
standing the cutting
action of the water.

Ld
z

3

S

CAST IRON BODY AND LID,
HOPKINSON’S “PLATNAM” METAL VALVE AND SEAT.

HOPKINSON’S PATENT SAFETY BOILER MOUNTINGS & 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.

J. HOPKINSON & CO. LTD.,

No. 374

HUDDERSFIELD.