February 28, 1913.

THE COLLIERY GUARDIAN.

429

OPEN BRIDLE.

?ONGAfifl

Perfect
Eye & Head Shield.

Light ! Comfortable I
Durable I Reasonable I

Sole Agents :

LEGARD& SON,

Pit Pony Harness Makers
and Contractors,

LEATHER MERCHANTS,
’PHONE 11. Barnsley.
IVl£t,ci.e also in Box Nose.

W ALLES, DOVE & Co.’s

Patent BITUMASTIC Solution
-----------------(.IVES ----
PERMANENT PROTECTION FROM

CORROSION TO ALL IRONWORK.

A BRILLIANT BLACK COLOUR.	SUPPLIED READY FOR USE.

EASILY APPLIED BY UNSKILLED LABOUR.

CHEAPER THAN ORDINARY OXIDE PAINTS, OWING TO ITS
GREATER COVERING CAPACITY AND LASTING QUALITIES.

WRITE FOR PAMPHLET OF FULL PARTICULARS TO-

Head Office-WE WCASTLE-ON-TYNE.

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

Every Office on the Telephone	- Telegrams “BITUMASTIC.”

PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield.

Speciality

GOAL SCREENING & CONVEYING.



aaCTlON OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER,

CONSIDERABLY OVER

inn pi ant2

i LhhIw I O and TH£ c°lqnies

Estimates and Designs on application.

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

Walter Scott Ltd.

Leeds,	LEEDS STEEL WORKS.	England.

MANUFACTURERS OF

BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS,

TRAMRAILS AND PERMANENT WAY RAILS,

Pit Head Frame,
k Erected in Works
for inspection.

Example of 10 in. x 6 in. x 42 lb. R.S. Joists curved for Framework to Roadway.

ROLLED STEEL JOISTS for PIT PROPS,
FRAMEWORK TO ROADWAYS, &c.

STRUCTURAL STEELWORK FOR BUILDINGS, &c.

Mild Steel Blooms, Billets, Slabs, Tinbars, Rounds & Flats.

Rolls cut for Special Sections and to approved quantities.

Books of Sections and other information on application.

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

HOPKINSON-FERRANTI

Patent gTQp VALVE

For Steam and High Pressure Water Service.

The Greatest Advance in Valve Construction of the Times.

LESS WEIGHT, COST AND LEAKACE.

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.

it> 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 underpressure.

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

Discs and Seats of

HOPKIN SON ’ S

“PLAT&AM” METAL

Suitable with Superheated Steam.

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 Steam, 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 in stock.

We can give immediate delivery of iron and steel valves.



J. HOPKINSON & CO. LD.. Huddersfield

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