Juki! 29,

1917.

THE COLLIERY GUARDIAN.

1231

It speaks for itself

w

Q

O

60

80

70

500

400

Z 1050
□

Id

x 1000

--300 m

1100

u

H 1100

Id

Id



600	700	800	900	1000

GALLONS PER MINUTE



Pumping Plant in a Colliery Pumproom 1,050 feet below surface.
Three units each delivering 50,000 gallons per hour to the surface.
Efficiency of Pumps, 79 per cent. Speed, 1,485 revs, per minute.

Motors work at 5,500 volts.

Write for List No. 736.

Pulsometer engineering C°. IL

OFFICES :

WORKS:



11, Tothill Street,

LONDON, S.W

Nine Elms Iron Works

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