892

THE COLLIERY GUARDIAN.

May 2, 1913.

WRIGHT’S FORGE &
ENGINEERING GO. LTD.

---SOLE MANUFACTURERS-

TIPTON & LONDON

JGHT&C?.

and

Patent STAUFFER
“TELL-TALE” Lubricators

^clish

nil

Certainty—Economy—Cleanliness.

TAUFFER'S LUBRICANT

Regd. Trace Mark.

TANDARD MACHINE GREASE

AYING 80 TO 90 °/o OVER LIQUID OIL

OLE MAKERS: TRIER BROS.

CUMBERLAND WORKS, CAMBERWELL, S.E. | r j
■ Office: Caxton House, Westminster, S.W. I liOuUOIlo

Agent for Northern Counties: Hr. JOHN YOUM*
9. Croft Terrace, Jarrow-on°TynOb

ISC A FOUNDRY AND ENGINEERING CO.,

RAILWAY PLANT & GENERAL ENGINEERS,
Switches, Crossings, Turntables, Water Cranes, Girders, Bridges,
Roofs, Pipes, Pumps, Wagons, Tanks, Engines, Boilers, Cranes,
Works: NEWPORT, MON.

London Office : 16&17, Devonshire Sq. Bishopsoate St., E.C.

NONEX

A COVERING for COR-
RUGATED IRON. Can
show corrugated sheets
painted in 1903 with it.

G. & T. EARLE (1912) Ltd., HULL.

FOR THE

PREVENTION of COAL DUST EXPLOSIONS

1 USE

||OMGO ^PRAYING COMPOUND

which has proved itself a most efficient and laalinef dual layer.

“^=3- HULL OIL MANUFACTURING CO. LTD., Stoneferry, HULL.

HARDY DRILL

STEEL

SPECIAL TOUCH.

In Use
Throughout
the
WORLD.

HARDY

HIGH SPEED

w

AND

GAST STEEL

ALL SECTIONS and for
ALL PURPOSES.

CANNOT BE EXCELLEB.

The Hardy Patent Pick Co. Ld.

SAieffield, England.

Price 3s. 6d. 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 Street, Holborn, London, E.C.

The Gwalia Forge Co.,

Caergwrle, Wrexham, N. Wales.

ESTABLISHED OVER 250 YEARS.

0

Ip.,
P'

...

Absolutely the
best tubs on
the market,
being stronger
in proportion
to their weight
than any other
make. :: ::



First-class ::
references
given if desired,
one colliery
alone having
purchased over
2,000 tubs
from us. :: ::

Caergwrle Steel Pit 'Wagons.

WE SPECIALISE IN

KanaBManMBaUUUMBBBBUMUUUUffi

Colliery Tubs, Draw-Bars, Wagon Couplings,
Angle Work, Colliers’ Rakes & Baskets, Spades,
Shovels and Picks to any Pattern. Also all
kinds of Smith Work and Steel Forgings of
every description.	Prices on application.