February 14, 1913.

THE COLLIERY GUARDIAN.

365

NO MORE PIT CAGE ACCIDENTS I

Assending
and
Descending
Gages
Safeguarded.

No
Interference
with
Winding.

Starting
in the
Wrong
Direction
Prevented.

/¥













Safety
assured
with

‘THE
VISOR.’

The most

Effective

Machine on
the
Market.

160
at work.

";X£.,.JOHN WOOD & SONS Ltd.,

Telephone : 55 Wigan.

Engineers, WIGAN. Telegrams : “ Haulage. Wigan.’*

’Phone 11

“PONGARD”

Pit Pony Cap and Head Shield.

SELF-REGISTERING

WATER GAUGE

Used all over the country, and giving great
satisfaction.

IS THE FIRST AND FOREMOST.

Complete io/6, or Hoods only 6/3 to complete
your own bridles.

Agents, LEGARD & SON,

Leather Merchants, BARNSLEY.

Write for New List No. 50.

“ Pickering ”
Governor.

Speciality REPAIRS.

HOLLINCDRAKE & SON, STOCKPORT.

THE QUARRY.

THE ORGAN OF THE

Stone, Marble, Slate, Lime, Clay and
Cement Trades.

Price =	-	6d. Monthly.

Offices—30 & 31, Furnival Street, Holborn,
London, E.C.

Abstract of the

REPORT of the PRUSSIAN COMMISSION

ON

FALLS OF STONE AND COAL.

PRICE ------ ONE SHILLING.

with CLOCK; Ochwadt System.

See Part I.,
Paragraph 62,
of the Draft

General Regu-
lations of the
Coal Mines
Act.

This Water Gauge is largely employed for continuously
recording the pressure or water gauge of coal mines, the
pressure or vacuum of air or gas in gas plants, and in
ironworks.

SEND FOR LIST 41 O.

JOHN DAVIS & SON

THE COLLIERY GUARDIAN CO. LTD.,

30 & 31, Furnival Street, Holborn, London, E.C.

(Derby) LTD.,

ALL SAINTS WORKS, DERBY;

& 17, Victoria St., Westminster, London, S.W.