April 25, 1913.

THE COLLIERY GUARDIAN.

887

—i“TREFORi—|
BORING and
MINING Go. Ltd.

(Societe 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).

HEYWOOD &

M I

1

& ■W

V ’

-i®



DAYID

Haulage

BRIDGE’S PATENT

Friction Clutches &

Haulage Installations

for Collieries, Mines, Quarries, &c.

Specially designed to meet working conditions.

Our 20 years’ experience is at your service.

Our Clutches may be applied to
existing pulleys or wheels without
removal from pit.

SEND FOR DESCRIPTIVE CATALOGUE—FREE.

BRIDGE & CO. DTD.,

Works, CASTLETON, MANCHESTER.

-_________________________

A

Automatic Detachment,

The 1911 lever has large lateral stops and »
wedge-shaped head.

Drop-forged shells (two sizes), levers (four
sizes), catches and couplings.

SMALLMAN HAULAGE CLIPS.

New Mode!; Nine Sizes°

Patented 1902, 1906 and 1910.

illustrated Catalogue.	Clips can be had without catches.

Patentee and Sole Manufacturer:—

JAMES W. SMALLMAN. NUNEATON, England.

NO MORE PIT CAGE ACCIDENTS I

Ascending
and
Descending
Cages
Safeguarded,

No
Interference
with
Winding.

Starting
in the
Wrong
Direction
Prevented.

IW J



Safety
assured
with

‘THE
VISOR.’

The most

Effective

Machine on
the
Market.

Over 200
at work.

Write for
parlicuhira to

JOHN WOOD & SONS

Ltd.,

Telephone : 55 Wigan.

Engineers, WIGAN. Telegrams: “Haulage, Wigan.”