March 20, 1914.

THE COLLIERY GUARDIAN.

611

Collieries

They have dwindled to vanishing point in many instances and the worst of
it is that this shrinkage is accepted as inevitable, whereas it is in a large percentage
of cases due to the want of enterprise on the part of those responsible for the
conduct of the colliery or the mill, as the case may be. This apathy, deepening
to indifference, is both costly and deterrent to progress. Consider for a little the
haphazard boiler-house methods prevailing in 50 per cent, of the collieries of Great
Britain. Steam-raising is wasteful, and wholly unsatisfactory, in such collieries.
True it is that good boilers are installed, but the treatment they receive is a quick
preparation for the scrap-heap to which they are soon relegated. The coal used
is good marketable coal, which might well be sold, and an inferior almost unmarket-
able fuel substituted, provided that the management were possessed of sufficient
initiative to select useful hard-working machine-stokers of the Bennis type, similar to
those making records in many of the leading collieries in South Wales and Yorkshire.

These machines keep clear strong fires with low-grade unmarketable rubbish. They increase the boiler duty
and ensure a plentiful supply of steam. They preserve boiler life, they maintain clean chimneys, and they reduce
labour costs. They are installed under guarantees of economy and efficiency.

—■■■■■■■ 1	---- Write for pamphlet	...-....

“To Increase Colliery Dividends”
to

EDWARD BENNIS & CO. LTD.,

Little Hulton, Bolton,
or 28, Victoria Street, S. W.

The “EXHALL’overwind preventer

(Jackson & Staley’s Patent).

Any Engineman can understand it after once seeing it in operation.

(I). Effectually prevents the Cage being dashed into the sump boards when men are being lowered.

(2)	. The Engineman cannot start in the wrong direction.

(3)	. The Engineman cannot exceed any predetermined

speed in winding.

(4)	. Steam is shut off if winding at high speed continues

too near the end of wind.

(5)	. There are two independent mechanisms, either of

which shut off steam and apply the brakes to
prevent overwinding.

(6)	. After the action of the machine in preventing an over-

wind it can be set ready for re-use by one man, and

Winding can he Continued Within One Minate

Adopted by OVER 120 COLLIERIES,

among which are:—

The Lilleshall Co. Ltd.............. 8 machines.

The Weardale Steel, Coal & Coke Co. Ltd. ...	7 machines.

The New Hucknall Colliery Co. Ltd. . 6 machines

&c

Sole Makers-

NORTONS (TIVIDALE) LTD.,

Hecla Works, Tipton, ENGLAND.

STONE DUST IN COLLIERIES

What the Home Secretary says :

In a recent official communication the Home Secretary writes :—“ It will be necessary to embody the recom-
mendations in statutory regulations under the Coal Mines Act, but I would urge owners most strongly, without
waiting for the formal settlement of the regulations, to take the matter into immediate consideration.

“ The Committee have not in the report recommended the adoption of stone dusting to the exclusion of
watering, but it is generally recognised that any system of watering which does not render inert the dust, not
only on the floor, but on the supports and sides, would not be equivalent to the system of stone dusting
recommended by the Committee.”

Write for full particulars of

Allen's Stone Dust Making Plant

and its many advantages over
other types of machines.

Edgar Allen & Co. Limited, Sheffield.