July 19, 1918.	THE COLLIERY GUARDIAN. [ SUPPLEMENT PAGE VII. ]147

---- THE ---

Keppers’ 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.

3oi, glossop road, Sheffield.

n/‘PHONE: 1R76A

‘GRAMS:“RINGS?BRADFORD?fc==l

THE
FERFECT-GASTIGHTRING

ST JOHN’S WORKS, DD A TYFAPD
wakefield road, DnAUrUKU.



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.

—— 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.

Coal-Face Conveyors, 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 Minus Act.

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

FULL PARTICULARS FROM

RICHARD SUTCLIFFE,

Universal Works, HORBURY, WAKEFIELD, England.