1158

THE COLLIERY GUARDIAN.

June 22, 1917.

The Silent Conveyor

(Spence’s Patent).

A Fair Example of Results

Length of Face - -

Height of Seam - -

Average Gradient

against load

Average discharge

(5 men) - 60 tons per shift

Average load (input) - 4 B.H.P.

80 yards
2 ft. 9 in.

1 in 12

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Meco Belt Conveyor Head, Spiro-turbine Drive.

Perfectly noiseless in operation.

Positive in action, will convey equally
well uphill or down.

Most economical in power consumption.

Electric or air-driven.

Will take the place of your enlisted men
and will increase tremendously your
output of coal.

Write for Latest Illustrated Catalogue on Conveyors.

The Mining Engineering Co.

MECO WORKS, limited,

Telegrams—“Meco,” Sheffield.

Telephone—4530 Central (2 lines).

SHEFFIELD



STEAM, MOTOR, BELT, OR ROPE-DRIVEN

AIR & GAS COMPRESSORS

From 50 to 15,000 cubic feet

FOR

COLLIERIES, MINES, Etc.

ADVANTAGES:-

SIMPLICITY.

RELIABILITY.

SELF-LUBRICATION

SMALL FLOOR SPACE.

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ADVANTAGES

DURABILITY

HIGH EFFICIENCY.

BEST WORKMANSHIP.

MINIMUM MAINTENANCE

One of Two 1,400 c.f. Air Compressors, in De Beers Mines S.A.



BELLISS & MORCOM LIMITED,

Telegrams:
“BELLISS, BIRMINGHAM.”

BIRMINGHAM.

London Office :

8, VICTORIA STREET, S.W. 1.