December 15, 1916.

THE COLLIERY GUARDIAN.

1185

Electric Signalling

With BARE WIRES.

DA VIS-MACDONALD
SOLENOID BELL (TREMULOUS ACTION)
PATENT.

With this Bell there is no possibility of a spark.
Suitable for A.C. or D.C.

DAVIS’S RELAY with SPECIAL WINDING,
overcoming sparking on the line and in the
relay, thus saving the platinum contacts.

PATENT APPLIED FOR.

a

SEND FOR LIST 4HH.O.S.

JOHN DAVIS & SON (DERBY) LD.

All Saints Works, DERBY.

LONDON OFFICE—17, Victoria Street, Westminster, S^W,



I AND I V
\ BRASS I
L LABELS

EXTENSIONS TO WORKS

In Wood, Iron, Asbestos or other Materials,
WORKMEN’S	HOSPITALS AND	STORE BUILDINGS

COTTAGES.	ADDITIONS.	FOR ALL PURPOSES.

Large Stocks: ASBESTOS SHEETS and TILES.

E. CLIVE PORTEOUS, Ltd., General Contractors, 46a, Market Street, MANCHESTER.

YEARS of STUDY

To Colliery Proprietors.

and EXPERIENCE

HAVE BROUGHT

MY SYSTEM OF

CEMENTATION

TO PERFECTION

Shafts sunk, tunnels
driven, & other mining
constructions carried
out in difficult and very
wet ground by the best
method. Success guar-
anteed.

18 shafts completed in
England, and 7 in
progress.

Ferro-Concrete Lining
a speciality.

Feeders of water in
shafts or levels effec-
tually treated.

ALBERT FRANCOIS,

9	7

White House Chambers, DONCASTER.

TeIegrams—-“Francois, Doncaster.”	Telephone—408 Doncaster.

WIRE SCREENS.

WIRE

ALEX. COUSlflND & SON
3,MITCHELLS’, GLASGOW

ELECTRICAL MEASURING & Look for the mark
RECORDING INSTRUMENTS of Kehab,hty-

FOR MINES. . ....

Ask for Catalogue.

NALDER BROS. & THOMPSON LD.,

97a, Dalston Lane, London, N,E.

GEORGE BURNSIDE,

Burnside’s Safety
Boring Apparatus.

Used most successfully
in tapping old Mine
Workings.

Apply/or Catalogue.

Rock and Stone DrillinqIMachines: Drills to any Size.

Also Eye Guards for Pit Ponies.

Boring Tool Works, Shiney Row, Fencehouses,
CO. DURHAM.

Walter Scott Ltd

Leeds,

LEEDS STEEL WORKS,

England.

MANUFACTURERS OF

BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS,
TRAMRAILS AND PERMANENT WAY RAILS, &o.

Pit Head Frame.
. Erected in Werks
iL for inspection.

iC11 ®.



Example of 10 in. x 6 in. - 42 lb. R.S. Joists curved for Framework to Roadway.

ROLLED STEEL JOISTS for PIT PROPS,
FRAMEWORK TO ROADWAYS. Ao.

STRUCTURAL STEELWORK FOR BUILDINGS, Ac.

Mild Steel Blooms, Billets, Slabs, Tinbars, Rounds & Flats.
Rolls cut for Special Sections and to approved quantities.

Books of Sections and other information on application.

Steel Underframe

Railway Car-
riages, Tramcars,
and Wagons of
every description
for Hire and Sale
by Immediate or

ments. Ironwork,
Wheels and Axles.

WAGONS

Also Wagons with Oak Underframes
Makers of HYDRAULIC PRESSED BOSS
and other WHEELS and AXLES.

PRESSED 8	H. BOGIES^

SECOND-HAND BALLAST WAGONS FIT FOR MAIN LINE

Wagons for
Hire, capable of
carrying Six,
Eight and Ten
Tons, part of
which are con-
structed specially
for Shipping pur-
poses. Wagons
in Working Order
maintained by
Contract.

TRAFFIC.

Sole Manufacturers of Dean & Churchward’s “ E1THERSIDE
BRAKE,” and Marillier’s Patent “ INSTANTER COUPLING/

Carriage & Wagon Co. Ltd.

WORKS : SMETHWICK, BIRMINGHAM.

Telegrams—‘‘Carriage, Smethwick.”	Telephone—No. 296 Smethwick (4 lines).

AULD’S PATENT

STEAM REDUCING VALVES

WIRE

All .
MESHES
IsHaB OF ANY
GAUGE

Also Makers of Special FULL BORE
Patent Steam Reducing Valves for
"I Blowing, Winding, Pumping and other
| Engines, and for supplying Surplus or
other steam from high to low pressure
boilers, &c.

DAVID AULD & SONS,

Patentees Makers, LTD.
White vale Foundry, GLASGOW.



HUGE

r J.B.

TREASURE

^rC9. . .

N GAUGE .

9 GLASS
M WASHERS

y LUBRICATORS nc
__________ t/STS om pppr/cpr/at.
LASSES

VflUXHRU.Ro
L LIVERPOOL.

SMALLMAN patent HAULAGE CUPS
New Model i Nine Sizes.
Patented 1M2, 1906 and 1910.

The 1911 lever has large lateral stops and a
wedge-shaped head.

Drop-forged shells (two sixes), levers (foxu
sizes), catches and couplings.

Illustrated Catalogue.	Clips can be had without catches.

Patentee and Sole Manufacturer:—

JAMES W. SMALLMAN, Nuneaton, England.