144

[ S UPPLEMENT PAGE IV. ]

THE COLLIERY GUARDIAN.

July 19, 1918.

JOHN WOOD & SONS, U?

Engineers, BARLEY BROOK FOUNDRY, WIGAN.

Telephone—No. 5 5 ” Wigan.

Telegrams—“ Haulage, Wigan

Fitted with

AUTOMATIC BRAKE

and Improved
“ OUTSIDE-

BAND”
FRICTION
CLUTCH.

1OO-H.P. “ ENDLESS”

far

M



Haulage Gears of every type.

WINDING, PUMPING & AIR COMPRESSING ENGINES.

s

Telegrams—“ Lettering, Sheffield.”

Established 1800.

Brass Time Checks

JOHN LAWSON & SONS,
Manufacturers of every kind of
STEEL STAMPS, LETTERS,
FIGURES, BRANDS, STENCIL
PLATES, &c.

Telephone No. 577.

Roebuck Letter Works, 26, Carver Lane, SHEFFIELD

PIPE

LINES

WATER, STEAM, OIL, AIR, GAS, HYDRAULIC.

CONTRACTS COMPLETED THROUGHOUT UNITED KINGDOM.

J. W. HOUSTON & CO., wick cross, GLASGOW.

,sej

CONTRACTORS FOR COMPLETE BOILER HOUSE EQUIPMENT.

MAKERS

OF

LANCASHIRE,

CORNISH. otdherl

TYPES OF BOILERS,

SUPERHEATERS,

jNETHERTONl

Electric Signalling ** Bare Wires

DAVIS’S
SPECIAL
EBELLS.

TREMULOUS

OR
SINGLE

STROKE.

Pates r.

With these
BELLS
there is
NO
POSSIBILITY
of a
SPARK.

Suitable for
A.C. or D.C.

Davis’s Relays with SPECIAL WINDING,
overcoming sparking on the line and in the Relay.

Davis=Fryar Mechano=Electric Signalling.

Patent.

£.

A

n e

The Davis-Fryar System dispenses entirely with bare wires and is in
successful operation throughout the country.

SEND FOK I.IST 41HO.S.

JOHN DAVIS & SON (DERBY) LTD.,

ALL SAINTS WORKS, DERBY, &