.Tune 19, 1914

THE COLLIERY GUARDIAN.

[supplement xi.] 1451

BARKER’S PATENT IMPROVED TREBLE BOTTOM LOAD SHACKLE

“KUNG” SAFETY DETACHBIMG HOOKS

(PATENT DOUBLE LOCKING GEAR).

With Wrot. Steel Double Catchplates or Cast Steel Cylinders.

Method of Attachment to
the Bridle Chains.

“NULLS SECUNDUS/8

Additional Security for High-speed Winding
and Heavy Loads.

SO MANY ACCIDENTS

have occurred to the Pin of the Bottom Shackle of Safety Hooks at a
Fast Overwind, or the Bull Ring has been fractured, owing to “THE
TERRIBLE BACKLASH ” of the Bridle Chains, that any improvement at
this point should be welcomed, seeing that all Hooks made are subjected
to the same ordeal, through the Cage by “ Momentum ” following on,
thereby slackening the Bridle Chains, and, upon its dropping back, the
Single Load Shackle Pin meets its “ Waterloo.”

IT MUST BE APPARENT TO EVERYONE

that 3 Shackles and Pins are much better to rely upon for

ABSOLUTE SAFETY

than one Shackle Pin and Bull Ring only.

It is most unlikely that all 3 Pins would Shear at one and the same time.

NOW BEING CONSTRUCTED

& for 30 ton loads with Cast Steel Cylinders and Entrance Bells
for the New Hucknall Company’s Welbeck Collieries, and for
O ton loads for The Coppice Collieries, near Cannock.



DAVIES & BARKER’S PATENT IMPROVED SINKING RIDERS TO meoe™enewq aSements

IN USE AT 12 OF THE MOST IMPORTANT SINKINGS WITH SAFETY “CLIVIE” HOOKS COMPLETE.

AU enquiries to be made to the Patentee and Sole Manufacturer;—

J. F. BARKER, Engineer, 92, Hatfield Road, IPSWICH.

,stL‘r..



CORRUGATED and FLAT SHEETS and
GALVANISED GOODS; TUB & CORNER PLATES;
AIR PIPES and all Colliery Requirements.

J. SUMMERHILL & CO.,

Beaver Works, WOLVERHAMPTON.

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AND

By B. C. COOK and
5ir EDWARD T. COOK.

5th Edition, Revised
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ENVIRONS.	30 Maps and Plans

80 Illustrations.

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The Railway Bookstalls and all Booksellers.

GAUGE
GLASS
WBSHER5

LUBRICRTORSetc

ft





Prevent Colliery Explosions!

It is far cheaper to provide means of preventing explosions
than to suffer the enormous loss they cause.

Stone Dusting minimises the danger.

Stone Dust is easily and cheaply made if you have one of

Allen’s Special

Stone Dust Making Plants.

They are simple, strong and self-contained.

They have many advantages over other types of machines.

If you do not yet know about them, write at once for details !

Edgar Allen & Co. Limited,

Imperial Steel Works,

SHEFFIELD.