456

THE COLLIERY GUARDIAN.

[supplement PAGE IV.]

March 1, 1918.

URGENTLY REQUIRES

MUNITIONS

PHONE: No.,3720.

TELECRAMS: "STABILITY,SHEFFIELD

IRON, STEEL, BURNT METAL,
TURNINGS, AND ANY OBSOLETE PLANT.

PRINCEPS PATENT

“DEFLECTOR” OIL SEPARATOR.

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

ONE OF THE LARGEST
EXTRACTORS MADE IN THIS
COUNTRY.

PRINCEPS & CO.,

Engineers,

SHEFFIELD.

SPECIAL Self-contained MACHINE for CORRECT GRINDING of

STONE-DUST

For FIERY WORKINGS.

BRICKMAKING
MACHINERY

Suitable for COLLIERY SHALES,

Richard Scholefield, Leeds.

’Phone 1513.	ENQUIRIES SOLICITED. Wire “Brick, Leeds.”

LOWER

io

9

RAISE,

8

.STEADILY,

RAISE
^STOP,

WINDING
SIGNALS
“NON-CUMULATIVE.”

ELECTRIC.
MECHANO-ELECTRIC.
MECHANICAL.

SIMPLE.

EFFICIENT.

INEXPENSIVE.

DAYIS’S SPECIAL

RELEASING GEAR.

CEMENTATION for
WET VIRGIN GROUND

YEARS of STUDY
and EXPERIENCE
HAVE BROUGHT
MY SYSTEM OF
CEMENTATION
TO PERFECTION.

TO COLLIERY PROPRIETORS.

Shafts sunk, tunnels driven, and
other mining constructions carried
out in difficult and very wet ground
by the best method. Success guar-
anteed.

18 shafts completed in England,
and 7 in progress.

Ferro-Concrete Lining a speciality.

Feeders of water in shafts or levels
effectually treated.

ALBERT FRANCOIS, TSXwST

Telegrams—“Francois, Doncaster,r	Telephone—408 Doncaster.

Partners : Albert J. Francois (Belgian); Thomae Blandford.

BUMSTED & CHANDLER LTD.

Cannock Chase Foundry and Engine Works,

HEDNESFORD, STAFFS.

Telegrams—“ Bags, Hednesford.”	Telephone—48 Cannock.

HAULAGE PLANE
SIGNALS
Electric or Mechano-Electric.

SEND FOR LIST 41 v.

JOHN DAVIS & SON (Derby) Ltd.

All Saints Works, DERBY ; & 17, Victoria Street, Westminster, S.W. 1.

FANS

AND
ENGINES

FOR

MINE

Ventila-
tion,
with
Special

Reversing
Doors.

•z < 5V?



High
Speed
Engines
FOR
LIGHTING
and
POWER.

Centri-
fugal
Pumps.

Haulage
Gears,
&c.

Above illustration shows our Steel Cased Reversing Fan, which is passing a larger

volume of air than the 40 feet brick-cased fan alongside it.