April 13, 1917.

THE COLLIERY GUARDIAN

707

• WRIGHTS FORGE & ■
ENGINEERING CO. LTD.

--- Sole Manufacturers. ------

NEPTUNE FORCE, c, 57, BISHOPSCATE,
TIPTON.	& LONDON, E.C.

An installation of “ Bennis ” Machine Stokers
reducing labour and ensuring highest efficiency.







The Danger of Overwinding
owing to the brakes failing to act at the critical
moment, may be obviated by having your brakes
fitted with Ferodo linings. Possessing a very
high co-efficient of friction, Ferodo fabrics will
pull up your engines in less time and with
greater certainty than wood blocks or metal
brakes. They permit of faster winding without
the slightest danger.

Clutch and Brake Linings.

Contractors to the War Office and Admiralty, London General
Omnibus Company, and Underground Electric Railways of
London and Paris. List H from

THE HERBERT FROOD CO. LTD.,
Works—CHAPEL-EN-LE-FR.ITH.

We hold stocks at London, Birmingham, Belfast, Bristol, Car-
diff, Edinburgh, Glasgow, Liverpool, Manchester & Newcastle.

Agents for India: THE ASBESTOS & BELTING CO.,
Hl 3 & 4, Waterloo Street, CALCUTTA.

THE “ Bennis ” System of Coal	I

|	■*“ Elevating and Conveying com-	|

|	bined with “ Bennis ” Stokers and	|

Ash Removal Plant is the last word	|

|	in scientific Boiler House Practice.	|

=	Write to-day for fully illustrated and descriptive pamphlets.	=

|	Ed. Bennis & Co. Ltd.,	|

=	Little Hulton, Bolton, & 28, Victoria St., S.W.	=

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RED LABEL.

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Sheffield.

---------- SUTCLIFFE’S ------------------

COAL CUTTERS,

DISC & CHAIN TYPES, light or heavy pattern, for thin or thick
seams, with shallow or deep cuts. Compressed Air or Electrical Drive.

Goal"FaCe Conveyors, unrivalled in capacity, constant in work,
noiseless in the face and most easily moved forward.

Roadway Conveyors, which are moved freely from the face to admit
ripping in the gateway.

Hauling Gear, to keep a constant supply of tubs between the engine plane
and coal face with instantaneous extension of endless rope.

Wire Belting, for conveyors of all kinds.

Thomson's Non-Overwind, simplest, safest, surest, and cheapest.

Sutcliffe's Universal Sounding and Displaying

Signalling Apparatus, fully complying with Regulation 95
of the Mines Act.

NOTE.—The above machinery is all patented or protected, and makers
or users of infringing* articles will be liable to be prosecuted.

FULL PARTICULARS FROM

RICHARD SUTCLIFFE,

Universal Works, HORBURY, WAKEFIELD, England.

HDIEEIN Mil I Q For Producing
UnlrrlH fflILLO STONEDUST.

No. 6 REPORT OF THE EXPLOSIONS IN MINES COMMITTEE,
whilst recommending a minimum of 50 °/0 passing a 200 x 200 sieve, says
emphatically“ THE FINER THE DUST THE BETTER,” con-
sequently, STONEDUST PRODUCED BY THE GRIFFIN MILL
SYSTEM IS THE MOST EFFICACIOUS PRODUCTION FOR

THE PURPOSE, SEEING IT PREPARES:—

Percentage Horse
Output per hour Passing Power
200 x 200 Sieve Required
Dust from South. Wales Shale— 1 to tons upwards 83 °/o	25

Dust from Yorkshire & other Shale—1 to 1A tons upwards 87 °/o	25

No other System of Pulverizing can approach the

GRIFFIN & GIANT GRIFFIN MILL

for Low Cost of Grinding and Fineness of Product.

---- FOR FULL PARTICULARS, APPLY -

BRADLEY PULVERIZER C?

37, Walbrook, LONDON, E.O. ________