January 24, 1913.

THE COLLIERY GUARDIAN

201

WALKER BROS. WIGANL"

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

Sill

: . -

- J

Pair Compound Corliss Steam Two Stage Air
Compressing Engin is

T-'S®

• -

? .AA
"*5L.. _ a

Pair Two Stage Air Compressing Engines
for Belt Drive.



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.

Twin Tandem Compound Winding Engines.

Horizontal Winding Engines with Two Non-Compound Cylinders

WINDING, HAULING AND GENERAL MINING MACHINERY.

Wilde & Petries’ Patent Overwind and Overspeed Device.