December 24, 1915.

THE COLLIERY GUARDIAN.

1277

LOCOMOTIVES.

COLLIERY
HAULAGE
ENGINES

FOR

AIR, STEAM & ELECTRICITY.

FORGINGS
& REPAIR WORK.



COAL
CUTTING
MACHINES
OF ALL TYPES.

MACHINE WORK OF
EVERY DESCRIPTION.

London office, YARIfQUIRF FNRINF PA I TA	head office & works,

15, Caxton House, IUnl\OlHllC tHUIRCi vUa LIUij SHEFFIELD

Westminster, S.W.	TelegramsEngine, Sheffield.”

GEORGE BURNSIDE,

Burnside's Safety
Boring Affaratur.

Used moat successfully
in tapping old Mine
Workings.

Apply for Catalogue.

Boring Tool Works, Shiney Row, Fencehouses,
Also Era Guards job Pit Ponibs. CO. DURHAM.

Handbook C3 on
Chain Gearing
FREE.

Z^OVnVTPV CANNOT SLIP
VZ^^EBCHMNS

th ey prove so economical

in Power Transmission

“The Coventry” Chain Co., Ltd.

Coventry.

LITTLE GIANT POWER HAMMER.

With or without individual motor drive.

400 R.P.M.

Machine gun rapidity and precision.

See large advert, first issue each month.

Write your dealer, or to

MAYER BROTHERS CO.,
122 Rock St., Mankato, Minn., U.S.A.

900% ECONOMY.
Unique Patent Tub Bearings.

Dustproof, Foolproof, and Self Imbricating*.
FROM 7/- PER SET OF FOUR.

Particulars—

The Lancashire Engineering Agency,
429, Corn Exchange Buildings, MANCHESTER.

PERFORATED PLATES
FOR
COAL SEPARATING
PROCESS.

THOMAS HUDSON LTD., Sheepford Iron Works, COATBRIDGE.

Chekko

To Colliery Proprietors,

IMPORTANT Engineers and

■.	Contractors, &c.

To secure dependable winding and absolute
safety, all gear brakes should be fitted with
Cresswells* ** CHEKKO” Semi-metallic Asbestos
Brake or Clutch Linings.

Their grip is firm as a rock, yet responsive
and pliant as a hand grasp. “ CHEKKO” provides
instant and perfect retardation at all speeds and
under all loads. “ CHEKKO ” is a great precaution
against overwinding.

We make no brakes of cotton fabrics or other
than of pure Asbestos.

“ CHEKKO ” Brake Linings easily outlast
many times all others, and are, therefore, not only
the best in quality, but also far the cheapest.

Write for Samples, Diagrams and Prices, to :

CRESSWELLS’ Limited,
Asbestos Spinners & Manufacturers,
Wellington Mills, BRADFORD (Yorks).
Telegrams: “Asbestos, Bradford.” Phone: 950 Bradford.

BOILER HOUSE ECONOMY.

The Heywood Patent Furnace Bars
and Smoke Burner Combined. . .



■if

The illustration shows the Bars made in 5 ft. or 6 ft. lengths, with ribs cast on.
This Bar has been designed to meet the requirements of Collieries, Steel Works,
Forges, Locomotives, Steamers, and all other types of Furnaces that are very hard fired.

Write for Catalogue and price to—

THE “HEYWOOD” AIRTIGHT DAMPER CO. LTD.,

Grove Foundry, Gomersal, LEEDS.

GRIFFIN MILLS ° STONEDUST.

No. 6 REPORT OF THE EXPLOSIONS IN MINES COMMITTEE,
whilst recommending a minimum of 50 °/o passing a 200 x 200 sieve, says
emphatically“ THE FINER THE DUST THE BETTER,” con-
sequently, STONEDUST PRODUCED BY THE GRIFFIN MILL
SYSTEM IS THE MOST EFFICACIOUS PRODUCTION FOR
THE PURPOSE, SEEING IT PREPARES:—

Percentage Horse
Output per hour	Passing Power

200x200 Sieve Required
Dust from South Wales Shale—	1 to tons upwards	83 °/o	25

Dust from Yorkshire and other Shale— 1 to tons upwards	87	25

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 -

BRADLEY PULVERIZER Co.,

37, Walbrook, LONDON, E.O.