June 5, 1914.

THE COLLIERY GUARDIAN

1235

NOBODY’S SAFE

from an outbreak of

fire. Don’t let yourself be lulled into a False Feeling of
Security—get the real protection of the

“ NEW ERA ” 30-GALL0N
CHEMICAL FIRE ENGINE.

Equal to thousands of gallons of water.

‘Tour own
FIRE ENGINE
on your premises.”

ALWAYS
READY
FOR
INSTANT
USE.

Don't wait for a
fire — write now—
to-morrow may be
too late.

Write for i'ull
particulars.

The Valor Co. Ltd.

ASTON CROSS, BIRMINGHAM.

Registered
trade Marki

heuePBONe	°7'CENgrams

CENTRAL344. MILBURN HOUSE.. "LASORT.

' L	fA-B-C- 5™ Addition.

Codes 1 libber’s.

(BENTLEYS.

On Admiralty List

sNM»>

th’-' vv . x*4

Triplex Single acting
HORIZONTAL.

BB- Horizontal Inclined

DRIVEN BY
ELECTRICITY

STEAM

ORAIR

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PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield.

Speciality

COAL SCREENING & CONVEYING

SECTION OF SCREENING PLANT AT BENTLEY COLLIER?, DONCASTER,

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CONSIDERABLY OVER

100 PLANTS H

Estimates and Designs on application.

WORK IN
BRITAIN
COLONIES

Agent for South Wales: A. LEIGHTON STEVENS, 16, Fields Road, Newport, Mon,

NS

“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 workman-
ship and material are of the highest quality, and it is altogether a far superior article to the many
cheap bucket traps now on the market.

CAST IRON BODY AND LID,
HOPKINSON’S “PLATNAM” Metal Valve & Seat.

I

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SPECIAL FEATURES.

Simplicity. Reliable. Quick
in action. No Dribbling.

Strong Intermittent Water
Discharge. Quick Cut-off.

Will lift its water 2 feet for
every 1 lb. steam pressure.

Fitted with Valve and Seat of
HOPKINSON’S “ PLATNAM ”
METAL, which is five times
harder than bronze and ad-
mirably suitable for with-
standing the cutting action
of the water.

Description.

This steam trap is of the open float
type, and consists in its simplest form of
a Water Chamber A, Float with central
guide B, Valve C, Water Inlet Pipe,
and Water Discharge Pipe. The dis-
charge pipe forms the guide for the float.

The valve remains on its seat until the
float has sunk low enough to touch the
collar on valve; it then immediately
begins to discharge.

The Gallery or Water Pocket F is an
important feature, as it fills with water
when the float is at rest; when the float
begins to rise from its lowest position,
the water thus collected flows through
the hole G into the body A, thus ensuring
a rapid elevation of the Float indepen-
dent of a small amount of water passing
into the trap. The valve is not rigidly
connected with the bucket, and it is
therefore held on to its seat until the
Float acts on the Valve. This device is,
therefore, most valuable under all con-
ditions of working, but more especially
when the volume of water entering the
trap is small. Its lifting effect on the
Float is indicated by the sharpness with
which the water discharge is cut off.

HOPKINSON’S PATENT SAFETY BOILER MOUNTINGS AND 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. LD..

HUDDERSFIELD.

We are Exhibiting at the “Colliery and Mining Exhibition,’* Manchester,
No. 275.	Stands 41=42, June 12th to 27th.