1010

THE COLLIERY GUARDIAN.

November 12, 1915.

are invited

Years.

We have Specialised in this
class of Machinery, and have
designed and made more than
all other firms combined.

References to users
Established 50

BREAKING
SIZING
AND
WASHING
PLANT

ANTHRACITE COAL”

LTD.,
BRIDGEND,

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.,

IXJNDON Address-	Tjr v -yy TVCTim TT

34. Victoria Street, S.W.	JLdJL^JHk^l JDXjJu JL •

Class B

Save Money - Save Coal - Save Steam

By adopting FORREST’S PATENT AUTOMATIC

Cylinder DRAIN COCKS
on your Compound, Winding, Hauling, and all
your Stationary Engines, Steam Winches, &c.

(Thousands in use), now fixed on most new Engines
turned out by leading Engineers.

The Safest Automata: Drain Cock ever fixed on Com-
pound Condensing Engines, most positive inaction.

Makers of High-class Gunmetal Gland Taps.
Wheel Valves, &c.

For Prices, Particulars and Testimonials, apply Sole Makers,

APPLETON & HOWARD, ’"gSS-SI. HELENS, UNCS.

Contractors to the War Office.

Price 3s. 1 Od. post free.

A Practical Handbook for Colliery Electricians.

ELECTRIC CIRCUIT PROBLEMS

in Mines and Factories,

— BY —

ELLIS H. CRAPPER, B.Eng., M.I.E.E.,

Head of the Department of Electrical Engineering at the University of Sheffields

THE COLLIERY GUARDIAN CO. LTD.,

30 & 31, Furnival Street, Holborn, London, E.C.



GREENWOOD & BATLEY Ltd.,
ALBION WORKS, LEEDS.

Telephone—5200 LEEDS.	I Telewam.-“ GREENWOOD. LEEDS.”

■7-,	-7 •, »;<■ X’i <

STEAM TURBINES

HIGH PRESSURE,—EXHAUST STEAM,—MIXED PRESSURE.
FROM 3-B.H.P. TO 600-B.H.P.



Part of order for
totally enclosed gas-
proof Mining Motors
with ball bearings and
plate glass spy holes.

r'



ELECTRIC MOTORS

AND GENERATORS, A.C. AND D.C. FOR ALL PURPOSES.

PRINCEPS Patent

“DEFLECTOR” OIL SEPARATOR.



: VS

Capacity, 300,000 lbs. of steam per hour, 60" dia. main.

ONE OF THE LARGEST EXTRACTORS MADE IN THIS COUNTRY.

PRINCEPS & CO., Engineers, SHEFFIELD.