March 20, 1914

THE COLLIERY GUARDIAN,

619

MM;

MARK

Centrifugal Fans
are employed for every purpose
for which a Fan can be used.
They are high in efficiency, low
in power consumption, and small
in size in comparison to their
capacity.

182 Inches Diameter.

BETWEEN THESE TWO FANS,

the wheels of which are shown here,
there are 35 Standard Sizes. One of
them is the size you need to do your work
efficiently.

Write for Bulletin

No. 2002.

TAAVIDSON

& Co. Ltd.

Sirocco Engineering Works,

BELFAST

5 Inches Diameter.

IRONWORK DOES NOT CORRODE

WHEN COATED WITH

“ BITUMASTIC SOLUTION.

The ONLY Anti-Corrosive

THAT IS NOT AFFECTED BY CHEMICAL
FUMES, SMOKE FROM ENGINES_______
ATMOSPHERIC CHANGES, &c„ &c. . . .

WRITE NOW FOR DESCRIPTIVE BOOKLET TO
PATENTEES AND SOLE MANUFACTURERS—

WAILES, DOVE & Co. Ltd.,

Newcastle-on=Tyne, London, Liverpool, Manchester,
Glasgow, Cardiff, Birmingham, Leeds, Hull, &c.

Every Office on the Telephone.	Telegrams—“ BITUMASTIC.”

PALMETTO

For High Pressure
Superheated Steam
You need

i



SEND FOR FREE WORKING SAMPLES.

GREENE, TWEED & CO., Sole Manufacturers,

41, Tothill Street, Westminster, London, S.W.

PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield.

Speciality

COAL SCREENING & CONVEYING.

-V:

K

SECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER.



CONSIDERABLY OVER

100 PLANTS H

Estimates and Designs on application.

Agent tor South Wales: A. LEIGHTON STEYENS, 16, Fields Road, Newport, Mon.

Brussels Exhibition : “ Grand Prix,"

WORK IN
BRITAIN
COLONIES.

Roubaix Exhibition, 1911: “Grand Prix.”

H|q|p|k|i|n|s|on*S

“RDS” STEAM TRAP

PATENT

Sviitable 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.

IFh

L-J

□

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.

Write for Catalogue 660, 4th Edition, post free, which illustrates and describes
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.

No. 275.

& CO. LD..

HUDDERSFIELD.