August 21, 1914.

THE COLLIERY GUARDIAN.

401

LEECH, GOODALL t Co.

SUTCLIFFE’S

Telegrams :—
“Vertical, Leeds.”
Telephone :—1982, Leeds.

LEEDS.

Wl

LEECH, GOODALL & C9
LEEDS.

F' 3



MAKERS AND ERECTORS OF

SCREENING PLANTS, PICKING BELTS, SCREENS,
PITHEAD GEARS.

BUNKERS, ROOFS, STEEL STRUCTURAL WORK, &c.

COAL CUTTERS

DISC & CHAIN TYPES,
pattern, for thin or thick seams, with shallow or deep cuts.
Compressed Air or Electrical Drive.

Coal-Face Conveyors, u„tMtedi»
capacity, constant in work, noiseless in the face and most
easily moved forward.

Roadway Conveyors, which are moved
freely from the face to admit ripping in the gateway.

Hdllliny GCdf’j to keep a constant supply of tubs
between the engine plane and coal face with instantaneous
extension of endless rope.

Wire Belting, for conveyors of all kinds.

Thomson’s Non-Overwind,

simplest, safest, surest, and cheapest.

Sutcliffes Universal Sounding

& Displaying Signalling
Apparatus, fully complying with Regula-
tion 95 of the MINES ACT.

GAS RETORT INSTALLATIONS, CONVEYING PLANTS.

Representatives:—H. L. CHESTON, Clarendon House, Boston Spa, Yorks.

W. OGDEN DAYSON, 1, Mount Street, Swansea, for South Wales.

NOTE.—The above machinery is all patented or protected and makers
or users of infringing articles will be liable to be prosecuted.

FULL PARTICULARS FROM

RICHARD SUTCLIFFE,

Universal Works, HORBURY, WAKEFIELD, England.

Davis’s Electrical

Bell and Indicator

Patent No. 7638, and Patents Nos. 7241, 17607,
and 11780 applied for.

SIMPLE. EFFICIENT. INEXPENSIVE.

LOWER

STEADLY

RAISE

STEADILY

RA SE

TOP

“ NON-GUNIULATIVE ”

SIGNALS

complying with Rule 95, General Regulations 1913.

can be worked off existing
electrical or mechanical
wires.

ECONOMY

INDICATOR BEFORE MEN SIGNALLED.

RA SE

TOP

RAISE

r STEADILY

LOWER

MLY

INDICATOR AFTER MEN SIGNALLED.

Davis’s Mechanical

Bell and Indicator.

The Non-cumulative Indicator is designed to overcome
the objections expressed by colliery managers and winding
enginemen of having an indicator which accumulates (3
& 1). That now offered has two plungers (not illustrated).
It is otherwise similar to our original indicator.

Send for List 41 V.

JOHN DAVIS & SON

(DERBY) LTD

All Saints Works, DERBY

and 17, Victoria Street,

WESTMINSTER, S.W.

5.

6.

1.

2.

3.

4.

ADVANTAGES.

PATENT

By accurate tapering the life of the Pit Prop is more than
doubled.

Prop Sharpening Machine

The only machine which produces, at low cost, a
prop no matter of what length or diameter, with
a perfectly round or even point of any desired taper.

PIT PROP SHARPENING MACHINE.

Small cost of machine.

Ability to produce a perfectly round or even
point of any desired taper.

Small amount of power required to operate.
Automatic arrangement for disposing of the
waste chippings.

Saving of labour on account of the auto-
matic feed.

Capacity for an enormous output.

--- Full particulars and prices from -

F. OXLEY & CO •9 ATHERSTONE.

SAFETY