May 24, 1918.

THE COLLIERY GUARDIAN.

[supplement PAGE VII.]

1069

Koppers’ Coke Oven

Is undoubtedly the most successful Bye-Product Oven on the market.

Since its introduction a little over 10 years ago there have been built

15,000 KOPPERS’ OVENS.

KOPPERS’ OVENS ARE AT WORK HEATED BY
PRODUCER GAS AND BLAST FURNACE GAS.

KOPPERS’ DIRECT RECOVERY PROCESS

IS THE SIMPLEST AND MOST EFFICIENT
SYSTEM OF AMMONIA RECOVERY.

PLANTS ERECTED FOR THE RECOVERY OF
BENZOL & TOLUOL, FOR TAR DISTILLATION &
THE MANUFACTURE OF SULPHURIC ACID.

Full particulars on application to ---

The Koppers* Coke Oven and Bye-Product Co

301, GLOSSOP ROAD, SHEFFIELD. -EWSSKEl.

BRAKE

CRESSWELLS’ iu

CLUTCH

WELLINGTON MILLS, BRADFORD

LININGS

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

Sketty SWANSEA; 44=45, Exchange Bldgs., New St., BIRMINGHAM

Bothwell Street. GLASGOW ; 9, Grosvenor Road

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 all
other braking media—whether of metal, wood or other combinations.

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

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

Send postcard for our

Catalogue and
Drawings.

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.	1

— SUTCLIFFE'S ---------------------

COAL CUTTERS,

DISC & CHAIN TYPES, light or heavy pattern, for thin or thick
seams, with shallow or deep cuts. Compressed Air or Electrical Drive.

Goa I "Face GonVeyOCS, unrivalled in capacity, constant in work,
noiseless in the face and most easily moved forward.

Roadway Conveyors, which are moved freely from the face to admit
ripping in the gateway.

Hauling Gear, to keep a constant supply of tubs between the engine plane
and coal face with instantaneous extension of endless rope.

Wire Belting, for conveyors of all kinds.

Thomson's Non>Overwind, simplest, safest, surest, and cheapest.

Sutcliffe's Universal Sounding and Displaying

Signalling Apparatus, fully complying with Regulation 95
of the Mines Act.

NOTE.—The above machinery is all patented or protected, and makers
or users of infringing- articles will be liable to be prosecuted.

FULL PARTICULARS FROM

RICHARD SUTCLIFFE,

Universal Works, HORBURY, WAKEFIELD, EnglanU.

PR1NCEPS 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.