February 5, 1915.

THE COLLIERY GUARDIAN.

297



HOUSE

fAH'ORI

AIR
LOCK



KEITH FANS
for
HEAVY DUTIES.

Highest Efficiency
with
Strength and
Reliability.

MINE VENTILATION

and

INDUCED DRAUGHT.

COLLIERY OWNERS

and

IRON & STEEL C°s
are extensive users
of our

FANS & BLOWERS.

Our wide experience of
Ventilation,
Dust Removal,
Generator Cooling,
Forge Blowing,
Smoke Exhausting,
Cupola Blast,
&c., &c.,
is at your service.

James Keith & Blackman Co. Ltd.,

27, Farringdon Avenue, LONDON,

And at NEWCASTLE, MANCHESTER, LEEDS, CARDIFF, GLASGOW, &c.