April 18, 1913.

THE COLLIERY GUARDIAN.

823

WALKER BROS. WIGAN LT!1

Pagefield Ironworks, WIGAN, New Broad Street House, LONDON.

Pair Two Stage Air Compressing Engines
for Belt Drive.

Pair Compound Corliss Steam Two Stage Air
Compressing Engines.

to



NEW

PATENT DISC VALVES FOR

AIR COMPRESSING & BLOWING ENGINES.

HIGH EFFICIENCY AND

LARGE OUTPUT

Applicable to existing

Installations.

Triple Expansion Driving Engine with Corliss Valve Gear.

INDESTRUCTIBLE” TYPE VENTILATING FANS

FOR STEAM OR MOTOR DRIVING.

EASY MEANS FOR REVERSING AIR CURRENT.

■'.......•'{

- - 1

Twin Tandem Compound Winding Engines.

4 -

r

Horizontal Winding Engines with Two Non-Compound Cylinders



WINDING, HAULING AND GENERAL MINING MACHINERY.

'Wilde «& Petries’ Patent Overwind and Overspeed Device.