May 25, 1917.

THE COLLIERY GUARDIAN.

977

Walter Scon Ltd.

Leeds,	LEEDS STEEL WORKS,	England.

MANUFACTURERS OF

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



Pit Head Frame.

Erected in Works
k for inspection.

'-T '

Y* .

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

ROLLED STEEL JOISTS for PIT PROPS,
FRAMEWORK TO ROADWAYS, &c.

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.

■JJI lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllIL£

BLOWING AND EXHAUST

FANS

FOR

BLOWING BRAZING, RIVET
HEATING and FORGE FIRES,
LOCAL VENTILATION of
TUNNELS and MINE DRIFTS, &c.

These Fans are strongly built to
withstand hard usage, and are

HIGHLY EFFICIENT.

JAMES KEITH & BLACKMAN Co. Ltd.

27, Farringdon Ave. : : LONDON, E.C. 4.

S1IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIF

Its production has aimed at and attained a far higher standard of
strength, reliability and economy than that of any other
existent brake lining. A unique service

We invite your enquiries

CLUTCH LININGS.

Old-established Spinners and Manufacturers
and Patentees of Pure Asbestos Fabrics, etc.

Send post card for our Catalogue
and Drawings.

BRAKE and

CRESSWELLS’ Ld.,

WE LLINGTON

MILLS. BRADFORD.

11, Bothwell St., GLASGOW; 84, Hawthorne Av., SWANSEA; & 44/45, Exchange Bldgs., New St., BIRMINGHAM.

Telegrams—“ASBESTOS, BRADFORD.” Contractors to the Admiralty, the India Office and War Office, the
Telephone—950 BRADFORD.	Crown Agents for the Colonies, & numerous British Railways, etc.

MECHANICAL ENGINEERING OF COLLIERIES. T. c. F%-ERS.

Vol. I.. Price ai«. net (By post 21s. 8d.).	Vol. II., Price 10s. 6d. net (By post Ils.).

SUPPLEMENTARY VOL.-Price ios. 6d. net (By post Ils.).

THE COLLIERY QUABDIAN CO. LTD., 30 A 31, Fnrnival Street, Holborn, London, E.C. 4

LANCASHIRE BOILER fitted with SIMPLET CIRCULATOR.

For further particulars of the above, apply

To%to157o &E STEAM
OR

THE LONDON SIMPLET ENGINEERING CO. LTD.,

 20, CULLUM STREET,	.. -

FENCHURCH STREET, LONDON, E.C.

PREVENT GOAL MINE EXPLOSIONS

by dusting your mine with stone 'ground in the

GIANT GRIFFIN MILL,

As supplied to the leading Collieries.

Advantaces-

MAXIMUM PERCENTAGE OF “FLOUR” OR IMPALPABLE

MAXIMUM

MAXIMUM OUTPUT.

POWDER.

FINENESS.

MINIMUM POWER.

MINIMUM WEAR AND TEAR.

No Auxiliary Apparatus required for
Finishing the Product.

Heavy Construction.

OVER 4,000 GRIFFIN MILLS INSTALLED.

Also extensively used for grigdin?

COAL. LIMESTONE. PORTLAND CEMENT.

PHOSPHATE ROCK. ORES OF ALL KINDS.

Full particulars 'on application to—

BRADLEY PULVERIZER CO.,

■T 37, WALBR00K, LONDON, EC.4