June 13, 1913

THE COLLIERY GUARDIAN.

1301

WALKER BROS. (WIGAN) L"

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.

NEW PATENT DISC

jCTEj iii

VALVES
AIR COMPRESSING
HIGH EFFICIENCY AND
to existing

FOR

& BLOWING ENGINES

LARGE OUTPUT.

Installations.



Triple Expansion Driving Engine with Corliss Valve Gear.

“INDESTRUCTIBLE” TYPE VENTILATING FANS

FOR STEAM OR MOTOR DRIVING.

EASY MEANS FOR REVERSING AIR CURRENT.

Twin Tandem Compound Winding Engines.

•i

Horizontal Winding Engines with Two Non-Compound Cylinders



WINDING, HAULING AND GENERAL MINING MACHINERY.

Wilde & Petries’ Patent Overwind and Overspeed Device.