1174

THE COLLIERY GUARDIAN.

December 10, 1915.

W. 8. Allen & Sons (tipton) Ltd., X « tipton

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TELEPHONE—No. 37, TIPTON.

FOR ALL PURPOSES

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HAULAGE CLIP.

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Established 1800.	—

BRASS TIME CHECKS







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JOHN LAWSON & SONS,

Manufacturers£of”every*kind of

STEEL STAMPS, LETTERS,

FIGURES, BRANDS, STENCIL

PLATES, &c.

Roebuck Letter Works, 26, Carver Lane, SHEFFIELD.

Telephone No. 577

Price 3s, 1 Od. post free.

A Practical Handbook for Colliery Electricians.

ELECTRIC CIRCUIT PROBLEMS

in Mines and Factories.

— BY —

ELLIS H. CRAPPER, B.Eng., M.I.E.E.,

Head of the Department of Electrical Engineering at the University of Sheffield.

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

JOHN WOOD & SONS, LTD

Engineers, BARLEY BROOK FOUNDRY, WIGAN.

100-H.P. “ENDLESS”

and Improved
“ 0UTS9DE-

BAND”
FRICTION
CLUTCH.

Telephone—No. “ 55 ” Wigan.

Telegrams—“ Haulage, Wigan.”

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Fitted with

AUTOMATIC BRAKE









Haulage Gears of every type.

PUMPING & AIR COMPRESSING ENGINES.