646

THE COLLIERY GUARDIAN.

April 7, 1916.

THE COTTON POWDER Co. Ld„

Manufacturers of Explosives for Mining Purposes.

PERMITTED EXPLOSIVE

HEAD OFFICE:

24, WALBROOK, LONDON, E.C.

\



Double Helical Gears

with Continuous Teeth.

WORM GEARS

FOR EVERY DUTY.

COAL HOISTS AT LARGE DOCKS FITTED WITH
DOUBLE HELICAL GEARS.

DAVID BROWN & SONS L°
Park Gear Works, Lockwood,
HUDDERSFIELD.

ROPE
DRIVING.

DIPLOMAS OF HONOUR
BRUSSELS and TURIN.

FOR EFFICIENCY
DURABILITY USE

Illustrated Lecture on—
* THE TRANSMISSION
OF POWER BY
ROPES.”

Post Free on Application.

< If'

LONDON OFFICE :

95 & 97, Finsbury Pavement,
E.C.

Telegrams:
“ Kenyon, Dukinfield.”
Telephone:

494 Ashton.

Wm. KENYON & SONS Ltd.,

CHAPEL FIELD WORKS,
DUKINFIELD, near MANCHESTER.

QUALITY in SWITCH GEAR.

LIQUID
SWITCH
GEAR
of
HIGH-
CLASS
MAKE
and
GOOD

DESIGN.

WRITE
for
LIST
No. 60
with
PRICES
and
OUTPUTS



J. H. HOLMES & CO-? Newcastle-on-Tyne.