March 16, 1917.

THE COLLIERY GUARDIAN.

523

WALKER BROS. (Wigan)
LIMITED.
Codes: ABC 4th & 5th, Lieber’s, Western Union, Moreing & Neal, Mining.

WELLS’ WATER OIL FILTERS

AIR COMPRESSORS

with light Disc Valves to recent
Patents now at work (or on order)
indicating over

135,000 raising total output to 500,000 H.P.

PATENT UNLOADING DEVICE AND OUTPUT
REGULATOR, FOR POWER DRIVEN PLANTS.

Ventilating, Winding and
General Mining Machinery.

Pagefield Ironworks, WIGAN.

Telegraphic Address : “ Pagefleld, Wigan.”	Telephone : No. 14 Wigan (2 lines).

3

With Patent “Sight-feed” Syphons.

Over 22,000 Sold.

Supplied to the Principal Gasworks, Corpora-
tions and Leading Industrial Firms.

Pay first cost in a short time, as Dirtied Oil,
which has hitherto been thrown away, can be
filtered and used again and again.

No. 1.—For users having only a small quan- £, s. d-
tity of oil to treat (no syphon),
17 in. by 9 in. ...	...	.... 1 15 0

No. 2.—Capacity about 3 gallons oil,

22 in. by 10 in...............2	10 0

No. 3.—Capacity about 6 gallons oil,

27 in. by 12 in...............3	10 0

No. 4.—Capacity about 12 gallons oil,

36in. byl6in. ...	...	... 5 10 0

No 5.—Capacity about 24 gallons oil,

43 in. by 23 in...............9	9 0

No. 6.—Settling chambers holding about

50 gallons oil, 60 in. by 30 in. ... 19 10 0

Wells9 “ Lightning” Lime & Colour Washer

(Wallwork & Wells’ Patent).

A Great Saving of TIME, LABOUR & MONEY.

No Out si tie Power Required.

Lime Whiting or Cold Water Paints applied
at a speed of from 10 to 20 square yards per
minute in a manner superior to brushwork.
One coat with the machine on rough surfaces
is equal to two applied with brushes.

Will Save First Cost in a Few Days.

ENLARGED PATTERNS. REDUCED PRICES.

No.

No.

No.

No.

No.

6a, with detachable pail ... £5

6, handy size, with tank, and
wheels ...	...	... £6

4, with 5 ft. poles, single spray-
ing nozzle, and 15 ft. special
armoured hose, capacity

8 gallons ...	...	...	£8

4a, the same as No. 4 but with
strong wheels, and under-
frame ...	...	...	£9

5a, large machine, with wheels,
5 ft pole, double spraying
nozzle and 20 ft. hose,
capacity 12 gallons ... £11

5

0

15

0

5

0

0

0

o

■r/

■

Over 6,000 Sold,

5
PRICES SUBJECT TO CURRENT RATE OF ADVANCE.

A. C. WELLS & Co. London

GOODALL, CLAYTON & Co. Lo

LEEDS.

Telegrams :—
“Vertical, Leeds.”

Telephone :—1982, Leeds.

.*■ <





CEMENTATION and
CHEMICAL TREATMENT

YEARS of STUDY
and EXPERIENCE
HAVE BROUGHT

MY SYSTEM OF
CEMENTATION
TO PERFECTION.

TO COLLIERY PROPRIETORS.

Shafts sunk, tunnels driven, and
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
effectually treated.

ALBERT FRANCOIS, WhiDoXlsCTEmr

Telegrams—“ Francois, Doncaster,”	Telephone—4 08 Doncaster,

GRIFFIN MILLS STONEDUST

MAKERS AND ERECTORS OF

SCREENING PLANTS, PICKING BELTS, SCREENS,
PITHEAD GEARS.

BUNKERS, ROOFS, STEEL STRUCTURAL WORK, &c.

GAS RETORT INSTALLATIONS, CONVEYING PLANTS.

FOR

Horse
Power
Required
25
25

No. 6 REPORT OF THE EXPLOSIONS IN MINES COMMITTEE,
whilst recommending a minimum of 50 u/0 passing a 200 x 200 sieve, says
emphatically“ THE FINER THE DUST THE BETTER,” con-
sequently, STONEDUST PRODUCED BY THE GRIFFIN MIL!.
SYSTEM IS THE MOST EFFICACIOUS PRODUCTION

THE PURPOSE, SEEING IT PREPARES:—

Percentage

Output per hour	Passing

200 x 200 Sieve

Dust from South Wales Shale— 1 to tons upwards 83 °/o
Dust from Yorkshire & other Shale—1 to 11 tons upwards 87 °/o

No other System of Pulverizing can approach the

GRIFFIN & GIANT GRIFFIN MILL

for Low Cost of Grinding and Fineness of Product.

----- FOR FULL PARTICULARS, APPLY ------

RepresentativesH. L. CHESTON, Clarendon House, Boston Spa, Yorks

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

37, Walbrook, LONDON, E.G