January 24, 1913.

THE COLLIERY GUARDIAN.

173

—A—

INDUCED DRAFT FAN

e s fcjss

IS A GOOD INVESTMENT

THE cost of a “Sirocco”
Induced Draft Plant is
about 30 to 40 °/0 of that of a
chimney of equal capacity.

THE power to drive the Fan
varies from 3/4ths to 2 °/0
of the total power generated,
while the saving frequently
amounts to from 15 to 20 °/0.

INCREASES the steaming
* capacity of existing boilers
and thereby increases the
Works production.

REDUCES the Coal Bill be-
cause cheaper coal can be
used than with natural draft.

Send for
Catalogue
19 E.

PERMITS the use of the
waste heat in the flue
gases by means of economisers,
superheaters, &c.

PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield

Speciality

COAL SCREENING &

I

- <3

' ■ X

MS. fx
Px

.A.

S1CTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER,











CONSIDERABLY OVER

1 fl fi p 111W xK„r

I HO 8 I O and THE COLOfjlES

Estimates and Designs on application.

Agent for South Wales: A. LEIGHTON STEVENS, 15, Fields Road, Newport. Mon.

TURBON.

The LATEST THING in FANS.

Equally suitable for Mine Ventilation, forced and induced
draught, or any other purpose.

Great strength, simplicity and silence.

Highest efficiency. Perfect balance at all speeds.

Suitable for all pressures.

Resists high temperatures without distortion.

No rivets in blades.

Manufactured by THE WADDLE PATENT FAN CO. LTD.,

------------FOR THE -

TURBON PATENT FAN CO. LTD.,

LLANELLY.

PNEUMATIC ASH TANK

COATED WITH

WAILES, DOVE & Co/s

— PATENT —

“BITUMASTIC”

Solution & Enamels.

The “World’s Record”

Anti-Corrosives.

Write for Descriptive Booklet to Original Patentees—

WAILES, DOVE & Co. Ld., Newcastle=on=Tyne.

Also at London, Liverpool, Manchester, Glasgow, Cardiff
Birmingham, Leeds, Hull, &c.

every office on the telephone.	Telegrams4 ‘ BITUMASTIC.”

Brussels Exhibition: “ Chand Prix.” Allahabad, 1910.
Roubaix Exhibition, 1911: “Grand Prix.”

HOPKINSON-FERRANTI

Fa‘“* STOP VALVE

For Steam and High Pressure Water Service.

The Greatest Advanee in Valve Construction of the Times.

LESS WEIGHT, COST AND LEAKAGE.

This Valve has been invented and
designed to enable a valve having
operative parts of half the ordinary
diameter to pass a large amount of
steam through a small working part.
PRINCIPLE:

Converting the pressure of the
fluid into velocity and re-con-
verting the velocity into pressure,
thereby passing an amount of
steam equal to full carrying capa-
city of pipe.

SELLINC POINTS:

Passes same quantity of steam as a full-bore
valve.

Reduction in cost over ordinary fullway
valves.

Considerably less weight.

Seats half diameter of ordinary sluice valve,
therefore halves possible leakage.

Reduces vibration in pipes.

Graded opening—no sudden rush of steam in
opening.

No bve-passes necessary, thereby saving their
cost.

is not subject to wedging action or mechani-
cal strain.

The discs slide with a flexible pressure upon
the seats, thereby preventing cutting & scoring.

When the valve is open the seats are pro-
tected from the flowing fluid by the eyepiece.

Always easv tn onen and close under pressure.

It is an ideal valve for high temperature
superheated steam, as there are no cast iron
internal working parts.

Discs and Seats of
HOPKINSONS
“PLATNAM” METAL

Suitable with Suverhnattd Sttaw.

■i		
		
		

VALVES IN STOCK WITH IRON OR STEEL CASINGS.

UPWARDS OF 8,000 IN USE AT 220 Collieries, 180 Electric Power Stations, 90 Iron
and Steel Works, 130 Textile Mills, Turbine Makers, &c., &c.

HOPKINSON S PATENT SAFETY BOILER MOUNTINGS AND VALVES

For High Pressure Superheated St uni, High-class Exhaust and Water Sluice

Valves for Condensing Plants, &c.. Automatic Exhaust Valves, Reducing
Valves, Steam Traps, &c.» &c.

Upwards of 500 tong of Standard Steel Castings kept tn stock,
Jle can give immediate delivery of iron and steel valves.

J. HOPKINSON & GO. LD.. Huiiiersfieli

No. 236 London, Glasgow, Edinburgh, Cardiff, Oldham, Paris & St. Petersburg.