April 3, 1914.

THE COLLIERY GUARDIAN.

729

See RULE 15, >3a.i*. i.

SPECIAL ELECTRICITY IN MINES RULES.

“ That Signalling Apparatus shall be so constructed and
worked that there shall be no open sparking."

DAVIS-FRYAR

MECHANO-ELECTRIC SIGNALS

For Haulage Planes, &c., in Gassy Mines.

PATENT No. 5919.

KEITH

INDUCED DRAUGHT PLANTS

H£

£

A

Oil Contact Chamber.

This System is considerably cheaper than gas-proof pushes, and
more efficient.

Arrangements can be made to see the System in operation in the mine.

SEND FOR LIST No. 41 F.

JOHN DAVIS & SON

I TH ALL SA,NTS WORKS, DERBY;

I U eroy I L 1 U ■ j & 17, Victoria St., Westminster, London, S.W.

Telegrams—“ Davis, Derby.” Telephone—240 Derby.

Handiest Thing in

the Engine Room.

ONE SPOOL OF

«<



PALMETTO”

nec.TRAoe mark
PACKING

will cover the entire plant,
because you can pack any
size valve by unstranding.

“ Palmetto” outlasts other
packings because its lubricant
keeps it soft and pliable in
service.

Send for Sample Spool.

GREENE, TWEED & CO.,

Sole Manufacturers,

Queen Anne’s Chambers,
Westminster, London, S.W4

Induced Draught Plant com-
prising KEITH FAN and forced
lubrication steam engine for four
8 ft. x 30 ft. Lancs. Boilers.

James Keith & Blackman C" L™

27, Farringdon Avenue, LONDON.

And at Newcastle, Glasgow, Manchester, Leeds, &c.

TURBON.

The LATEST^ THING in. FANS.

Equally suitable for Mine Ventilation, forced and induced
draught, or any other purpose.

Great strength, simplicity and silence.

Highest efficiency. Perfect balance at all speeds.

Suitable for all pressures.

Resists high temperatures without distortion.

No rivets in blades.

Manufactured by THE WADDLE PATENT FAN CO. LTD.,

---- FOR THE ---

TURBON PATENT FAN CO. LTD.,

LLANELLY.

IRONWORK DOES NOT CORRODE

WHEN COATED WITH

“ BITUM ASTICSOLUTION.

The ONLY Anti-Corrosive

THAT IS NOT AFFECTED BY CHEMICAL
FUMES, SMOKE FROM ENGINES.

ATMOSPHERIC CHANGES, &c., &c. . . .

WRITE NOW FOR DESCRIPTIVE BOOKLET TO
PATENTEES AND SOLE MANUFACTURERS-

WAI LES, DOVE & Co. Ltd.,

Newcastle-on-Tyne, London, Liverpool, Manchester,
Glasgow, Cardiff, Birmingham, Leeds, Hull, &c.

Every Office on the Telephone.	Telegrams—“BITUMASTIC.”

PREVENT COAL MINE EXPLOSIONS

by dusting your mine with stone ground in the

GIANT GRIFFIN MILL,

As supplied to the leading Collieries.

Advantages

MAXIMUM PERCENTAGE OF “FLOUR” OR IMPALPABLE

MAXIMUM FINENESS.	POWDER.

MAXIMUM r OUTPUT,

MINIMUM POWER.

MINIMUM WEAR AND TEAR.

No Auxiliary Apparatus required for
Finishing the Product.

Heavy Construction.

OVER 3,000 GRIFFIN MILLS INSTALLED.

Also extensively used for grinding
COAL. LIMESTONE. PORTLAND CEMENT.
PHOSPHATE ROCK. ORES OF ALL KINDS.



Fail particulars on application to—

BRADLEY PULVERIZER CO

37, WALBROOK, LONDON, E.C.