January 9, 1914.

THE COLLIERY GUARDIAN.

67

5team Raising in Collieries.

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X

A Range]’of Bennis Machine Stokers making Profitable Steam.





Mechanical stoking shows many advantages
over hand stoking. By the adoption of machines
the firing is rendered more even and regular, and the
combustion therefore more efficient, whilst the losses
arising from the admission of large quantities of
cold excess air through holes in the fuel-bed are
avoided. But while these advantages are claimed
for mechanical stoking it is essential that the right
kind of machine-stoker should he installed.

Against machine-stoking in collieries there
has always been the fact that no machine can burn
the large slats and bats and the great pieces of slaty
and stony coal that are offered to it ; such
material, moreover, wrecks machine-stokers. To
meet cases of this kind Edward Bennis & Co. Ltd.
have designed their Colliery Hand-fired 'Furnace.

This machine is a rapid steam-raiser, and can burn successfully fuel of a size that no machine-stoker can touch.

Eor small coal, slack and unmarketable rubbish the Bennis Sprinkler Stoker and self-cleaning compressed air
furnace cannot be equalled. It is specially designed for its work and strongly constructed. It stands alone as the
machine-stoker able to keep clear strong fires with low-grade poor quality slack.

The machine for water-tube boilers is the Bennis new strong link chain grate. These links, forming as they do
a continuous grate surface—that is, a surface without spaces between them into which the coal can fall, and yet
possessing well regulated air spaces—are absolutely unique in design, and are as successful as they are unique. It is
unthinkable for any colliery steam-user, once having used the Bennis Chain Grate Stoker with the Long-Life-Link, to
return to the older form of link with its faulty and extravagant design.

It should be added that where Bennis machines are fed by Bennis Elevators or Conveyors, labour costs are
inevitably reduced to a minimum. In times of pressure, when the demand for steam is suddenly increased, the ease
with which the Bennis Sprinkler Stoker responds, ensures it a leading position where flexibility is an acknowledged
desideratum. Bennis plant is particularly applicable to steam collieries, and, as we have already mentioned, Bennis
self-cleaning furnaces are so arranged as to afford the advantages of hand-firing without its disadvantages.

Eor full particulars of paying steam-raising in Collieries, write for pamphlet “ Revenue in the Boiler-houses of
Steam Collieries^ to Ed. Bennis & Co. Ltd., Little Hulton, Bolton, or 28, Victoria Street, S.W.

Telegrams—“ BEL.L1SS, BIRMINGHAM.”

Telephones—CENTRAL, 3044 & 3045*

Established 1852.

London Office—

8, Victoria Street, S.W.

BELLISS & MORCOM LIMITED, Engineers, BIRMINGHAM,

STEAM DRIVEN AIR COMPRESSOR.

One, two, three, or four stages.

STEAM, MOTOR, BELT OR
ROPE DRIVEN.

From 25 to 15,000 cf. per min., for

Collieries, Mines,

Workshops, Rock
Drills, Air Lifts.

FOR HANDLING OF SLIMES AND OTHER

“BELLISS” SELF-LUBRICATING

AIR COMPRESSORS

ENGLAND.

.y ■

I

' I

I

-*■ I
fey-

465K '~

MOTOR DRIVEN AIR COMPRESSOR.

PURPOSES.