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THE COLLIERY GUARDIAN.

December 17, 1915.

BRITISH EXPLOSIVES SYNDICATED™

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NEW BRITISH PERMITTEDS

THAMES POWDER N°2

Charge Limit 22 Ounces

NEEDS NO THAWING

BR1TONITE N?

Charge Limit 24 Ounces
THE EXPLOSIVE FOR COAL



GREENWOOD & BATLEY Ltd.,

ALBION WORKS, LEEDS.

Telephone—5200 LEEDS.

Telegram.—‘ GREENWOOD. LEEDS.’

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STEAM TURBINES

HIGH PRESSURE—EXHAUST STEAM,—MIXED PRESSURE.
FROM 3-B.H.P. TO 600-B.H.P.

Part of order for
totally enclosed gas
proof Mining Motors
with ball bearings and
plate glass spy holes.

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ELECTRIC MOTORS

ANNALS OF COALMINING & THE COAL TRADE.

Br Post, 25s. M.	By ROBERT L. GALLOWAY.	Price a5». net.

The Colliery Guardian Co. Ltd., 30 & 31, Fumival-st., Holborn, London, E.C.

Chekko

To Colliery Proprietors,
IMPORTANT Engineers and
__-____	■— Contractors, &c.

To secure dependable winding and absolute
safety, all gear brakes should be fitted with
Cresswells’ “CHEKKO” Semi-metallic Asbestos
Brake or Clutch Linings.

Their grip is firm as a rock, yet responsive
and pliant as a hand grasp. “ CHEKKO provides
instant and perfect retardation at all speeds and
under all loads. “ CHEKKO ” is a great precaution
against overwinding.

We make no brakes of cotton fabrics or other
than of pure Asbestos.

CHEKKO ” Brake Linings easily outlast
many times all others, and are, therefore, not only
the best in quality, but also far the cheapest.

Write for Samples, Diagrams and Prices, to :

CRESSWELLS' Limited,

Asbestos Spinners & Manufacturers,
Wellington Mills, BRADFORD (Yorks).
Telegrurns : “ Asbestos, Bradford.” Phone: 950 Bradford.

AND GENERATORS, A.C. AND D.C. FOR ALL PURPOSES.