866	THE COLLIERY GUARDIAN.	Octobee 29, 1915.

JOHN WOOD & SONS, L"

Engineers, BARLEY BROOK FOUNDRY, WIGAN.

Telephone—No. “55” Wigan.

Fitted with

AUTOMATIC BRAKE

FRICTION

CLUTCH.

BAND”

Telegrams—“ Haulage, Wigan

and Improved

“ OUTSIDE-

1OO-H.P. “ENDLESS”

was

-A*-—*	>■ •

• 'I









Haulage Gears of every type.

WINDING, PUMPING & AIR COMPRESSING ENGINES.

12

RAISE,

n-OWER
.STEADILY^

'RAISE
...STOP.

IM

1 5«S

ioW/
—-4’’ • ’
9\
hk 8

WINDING
SIGNALS
“NON-CUMULATIVE.”

ELECTRIC.
MECHANO-ELECTRIC.
MECHANICAL.

SIMPLE.

EFFICIENT.

INEXPENSIVE.

The “DAVIS-MACDONALD” BALL-RACE
CONTACT-MAKING RELEASE

is the most efficient Release in connection with Visual Signals.
Signals cancelled immediately the engine starts, also stops.

Emergency Signals shewn during Winding.

The contact-
making arms
are

ENTIRELY
ENCLOSED
from dust, oil,
etc. (not shown
in the
illustration).

n

01
r »
SOL

SEND FOR LIST 41 v.

JOHN DAVIS & SON (Derby) Ltd.

All Saints Works, DERBY ; & 17, Victoria Street, Westminster, S.W.