212

THE COLLIERY GUARDIAN.

February 4, 1916.

W. G. Allen & Sons (tipton) Ltd.,

TELEGRAPHIC ADDEESS-" ALLENS, TIPTON.”

HAULACE CLIP.

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: COLLIERY TU6S	'

OF ALL KINDS

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Established 1800.	—

BRASS TIME CHECKS



JOHN LAWSON A 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 —

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

Head of the Department of Wteetrirat THnaineeri**g at the University of Sheffield

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

M. COULSON & CO. LTD.,

SPENNYMOOR,

Makers of

Coal Washers, Screening Plant, . .
Conveying, Elevating, and Crushing
Machinery, Tipplers, Tub Controllers,
. . Storage and Drainage Bunkers. . .

Estimates and Full Particulars on Application.

Replace parts and Repairs given Special Attention.

^ANTHRACITE COAL

combined.

are invited.
Years.

PLANT

We have Specialised in this
class of Machinery, and have
designed and made more than
all other firms

References to Users

Established 50

<5HEPPM5)
LTD.,
BRIDGEND,

SOUTH WALES/