March 13, 1914.

THE COLLIERY GUARDIAN.

561

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—

W AIDES, DOYE & Co. Ltd.,

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

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

Contractors’ Plant for Sale.

TO BE INSPECTED AT

JOHN AIRD & CO.’S DEPOT. FULHAM.

6-wheel Coupled LOCOMOTIVE, 12in. cylinder, 17 in, stroke, copper firebox and
brass tubes, 4 ft. 8|in. gauge

6-wheel Ditto, Ilin, cylinder, 18in. stroke.

4-wheel Ditto, 8 in.	„	14 in.	„

4-wheel Ditto, 10 in.	„	14 in.	„

and several others, also

PORTABLE ENGINES, from 6-h.p. to 30-h.p., all in first-class condition, ready
for work.

25-h.p. PORTABLE BOILER by Davey, Paxman & Co., for 100 lb. w.p.

Several Dunbars & Rustons STEAM NAVVIES.

Gwynnes and other PUMPS.

Sissons & White Patent STEAM PILE DRIVERS,
and a large assortment of various other plant all to be sold at very low
prices.	__________________

APPLY—

GEORGE COMEN, SONS & CO.,

6oo, Commercial Road, Stepney, E.

PLOWRIGHT BROS. LTD.,

Brampton Iron Works, Chesterfield,

Speciality -

COAL SCREENING & CONVEYING.

fflt till

SECTION OF SCREENING PLANT AT BENTLEY COLLIERY, DONCASTER

CONSIDERABLY OVER

inn pi ant2

IUU I Li® Is I 0 AND the colonie&

Estimates and Designs on application.

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

COAL, COKE & ORE BRIQUETTING

ahd CEMENT MAKING PLANT,

BRICK & TILE

Brussels Exhibition:“Grand Prix." Roubaix Exhibition, 1911: “Grand Prix.”

HOPKINSON- FERRANTI

Paten.	YALYE

For Steam and High Pressure Water Service.

The Greatest Advance in Valve Construction of the Times.

____

GRINDING MILL?.

/I

OMPACT.

WV0

GROUND AND PREPARED TO A VARYING FINENESS
IN ONE SPECIAL MACHINE ONLY.	«

WM. JOHNSON & SONS,(le eosj LT D., Arm Iey, Leeds.

ECONOMICAL

PLANT,

LESS WEIGHT, GOST 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.

SELLING POINTS:

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

Reduction in cost over ordinary fullwav
calves.

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 hve-passes necessary. thereby saving their
nnsr.

la 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 easy to open 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

HOPKIN SON’S

“PLATNAM” METAL.

Suitable with Superheated Steam.






	
	
■111	SB



GRINDING &

SCREENING PLANT,

GENERAL ENGINEERING.

VALVES IM STOCK WITH IKON (JR 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 tons of Standard Steel Castings kept in stock.

We can give immediate delivery of iron and steel valves.

Write for Catalogue 660, 4th Edition.

J. HOPKINSON & CO. LD.. Huddersfield

No. 275 London, Glasgow, Edinburgh, Cardiff, Oldham, Paris & St. Petersburg.