120

THE COLLIERY GUARDIAN.

july 17, 1914.

<^SANDYCROFT Ltd

CHESTER.



1,200 H.P. DOUBLE DRUM WINDER.

PERFECT CONTROL OF DECKING IS OBTAINED BY
CASCADE SYSTEM. THE PEAK LOAD IS REDUCED,
ACCELERATION LOSSES HALVED. TWO SPEEDS
AVAILABLE WITHOUT OPENING STATOR CIRCUIT

OUR

AND

ARE

The IDEAL Machine for Producing

STONE-DUST.

Coaldust Explosions Preventative.

• ■

RICHARD SCHOLEFIELD	g

•. triClNEER ‘	.	,•?

4EE0S EMt..	Jj



-i“TREFORi-
BORING and
MINING Go. Ltd.

(Soci6t6 Anonyme de Forage et
Entreprises Minieres),
41, RUE ROYALE, BRUXELLES.

CONTRACTORS FOR
DEEP BORINGS.





Wells drilled for petroleum
in all parts of the world.

Special outfit for coal borings to any
depth and of any diameter (Vogt’s
Patents).

BREJCHA’S PATENTS.

Boring to any depth without casings
and without reduction of diameter.
Speed record in England: Boring
Heswall (Cheshire), 3,400 feet in eight
months.

Shafts sunk by freezing
method

Shafts sunk by cementing the watery
grounds (cementing and sinking
simultaneously).

Correct Proportions of Dust in one operation.

'■ VARYING OUTRUTS.	*

DON’T take risks

Write NOW.

Particulars on application—

RICHARD SCHOLEFIELD,

Engineer,
Burley Vale Foundry, UE2E2DS.

BORINGS MADE IN ENGLAND TO-DAY.

Heswall (Cheshire) ____________	3,416	ft.

Furnace End (Warwickshire) ...	1,600	„

Maidensole (Kent) ...	______ 3,823	,,

Oxney (Kent) _________________	3,800	„

Bishopsbourne (Kent)____________	3,225	„

Ash (Kent)______________________	1,966	„

Great Missenden (Buckinghamshire)	1,264	„