144

THE COLLIERY GUARDIAN.

January 18, 1918.

The CONSUMMATE EVAPORATIVE CONDENSER for Steam Engines.

CENTRAL. CONDENSING PLANT
dealing with the exhaust steam from
Winding Engines, Fan Engine, 600 K.W.
Power Plant, and Screen Engine.

Saving in coal effected—60 tons per week.

I l i t * «J.J35





Coal Consumption reduced 30 1	- Water Consumption reduced 50 1 - Increased Power Output 30 %

Estimates and C.C. Booklet.	DEANE & BEAL Ltd Engineers, 676, Old Kent Rd., London, S.E. 15

AND

CLUTCH

LININGS

IN its production, the essential features, not only of immediate and reliable check, but perfect resistance to the highest frictional
heat, has been provided for. Manufactured only from guaranteed 100% pure asbestos reinforced by metallic strands
and containing no cotton or other fibre perishable by heat, woven solid in all thicknesses up to one inch, transmitting
a sure grip and engagement, soft as velvet and pliant as a hand grasp, it easily outlives many times ah
Other braking media—whether of metal, wood or other combinations.

Used by hundreds of Collieries, Forges, Engineering Works, etc., for Winding Drums, Brake

Posts, Drift or Transport Winches, and all Power Clutch and Brake Gears ; also for

Trolleys, Cranes, Hauling Machinery, and Electro-mechanical Brakes fitted to

Hoists, Centrifugal Machines, etc., above or below ground or water.

We invite your enquiries.

Send postcard for our

Catalogue and

Drawings.

1 1,

Sketty, SWANSEA ;

Telegrams: “ASBESTOS, BRADFORD.”
Telephone : 950 BRADFORD.

CRESSWELLS’ Ltd.,

Old-established Spinners and Manufacturers
and Patentees of Pure Asbestos Fabrics, etc.

WELLINGTON NULLS, BRADFORD.

Bothwell Street. GLASGOW ; 9, Grosvenor Road,

44=4 5, Exchange Bldgs., New St., BIRMINGHAM.

Contractors to the Admiralty, the India Office and War Office, the
Crown Agents for the Colonies, and numerous British Railways, etc.

BRAKE



Electric Sionallinn Bare Wires

DAVIS’S

SPECIAL

BELLS.

TREMULOUS
OR
SINGLE
STROKE.

Patent.

With these

BELLS
there is
NO
POSSIBILITY
of a
SPARK.

Suitable for
A.C. or D.C.

Davis’s Relays with SPECIAL WINDING,
overcoming sparking on the line and in the Relay.

Davis=Fryar Mechano=Electric Signalling.

Patent.

The Davis-Fryar System dispenses entirely with bare wires and is in
successful operation throughout the country.

SEND FOR I.IST 41/MO.S.

JOHN DAVIS & SON (DERBY) LTD.,

ALL SAINTS WORKS, DERBY, &

WALKER BROS. (Wigan)

LIMITED,

Pagefield Ironworks, WIGAN.

New Patent Light Disc Valves
for Air Compressors.

■ I

Vertical Steam-driven Air-Compressing Engines,
with Two-stage Air Cylinders.

Installations now at work equipped with
the above valve indicating over
135,000 H.P.

PATENT UNLOADING DEVICE AND OUTPU1
REGULATOR FOR MOTOR DRIVEN PLANTS.