10

THE COLLIERY GUARDIAN.

July 7, 1916.

THE BRITISH EXPLOSIVES SYNDICATE LTD. 124- ST VINCENT STREET GLASGOW

THAMES POWDER N° 2

Charge Limit 22 Ounces
NEEDS NO THAWING

The Strongest 8l Most Reliable

Briquette Machinery

for Blocks, Ovoids or Eggettes.

-

WHY have SO MANY GOVERNMENT CONTRACTS
during recent years been placed with us?

THERE’S A REASON.

Write for particulars—

WM. JOHNSON & SONS (Leeds) LTD.,

“ Eggette ” or Ovoid Briquette Making Machine.

Outputs 1 to 20 tons per hour.	Armiey, LEEDS.

Class B

F OftFi

Save Money - Save Goal - Save Steam

By adopting FORREST’S PATENT AUTOMATIC

Cylinder DRAIN COCKS
on your Compound, Winding, Hauling, and all
your Stationary Engines, Steam Winches, &c.

(Thousands in use), now fixed on most new Engines
turned out by leading Engineers.

The Safest Automati i Drain Cock ever fixed on Com-
pound Condensing Engines, most positive in action.

Makers of High- class Gunmetal Gland Taps.
Wheel Valves, &c,

For Prices, Particulars and Testimonials, apply Sole Makers,

APPLETON & HOWARD, Bn%S£Zl“‘ ST. HELENS, LANCS.

Contractors to the War Office.

ANNALS OF COALMINING & THE COAL TRADE

Br Post, 25s. Sd.	BY ROBERT L. GALLOWAY.	Price 25s. net.

The Colliery Guardian Co. Ltd.. 30 & 31. Kurnival Street. Holbom. 1/undnn, E.c.

Standard M.P. Turbine.

1

Illi?

WT~?

-* X

V /







STEAM
TURBINES.

High Pressure
Mixed Pressure
Low Pressure

FOR

Ironworks

AND

Collieries.

Reliable.
Economical.
Compact.

Richardsons Westgarth & C° LT“

MIDDLESBROUGH. HARTLEPOOL. SUNDERLAND.

/RAISE,
STiMHj

•n.0WER

.STEADILY.

_ST0P/^

WINDING

SIGNALS

“NON-CUMULATIVE.”

ELECTRIC.
MECHANO-ELECTRIC.
MECHANICAL.

SIMPLE.

EFFICIENT.

INEXPENSIVE.

The “DAVIS-MACDONALD” BALL-RACE
CONTACT-MAKING RELEASE

is the most efficient Release in connection with Visual Signals.
Signals cancelled immediately the engine starts, also stops.

Emergency Signals shewn during Winding.

The contact-
making arms
are

ENTIRELY

ENCLOSED

from dust, oil,
etc. (not shown
in the
illustration).



SEND FOR LIST 41 v.

JOHN DAVIS & SON (Derby) Ltd.

All Saints Works, DERBY; & 17, Victoria Street, Westminster, S.W.