April 27, 1917.

THE COLLIERY GUARDIAN.

797

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 Works
for inspection.

Tat d1
i J ri
I * ,s-

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. &c.

KEITH MINE FAN PLANT.

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.

STRONG-RELIABLE
-----EFFICIENT.-------

These are the qualities which make the

KEITH FAN suitable for continuous
service on

■	MINE VENTILATION,	■

■	FORCED & INDUCED	■

■	DRAUGHT, SMOKE	■

■	REMOVAL, etc., etc.	■

Complete Schemes Prepared on

__	- Application. -. =

James Keith & Blackman

Co. Ltd. —■

27, Farringdon Avenue,	LONDON.

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

Send post card for our Catalogue
and Drawings.

BRAKE and

CLUTCHUNINGS.

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

IVIILLS. BRADFORD.

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

Telegrams—“ASBESTOS,1 BRADFORD.” Contractors to the Admiralty, the India Office and War Office, the
Telephone—950 BRADFORD.	Crown Agents for the Colonies, & numerous British Railways, etc.

CRESSWELLS’ Ld.,

WELLINGTON

MECHANICAL ENGINEERING OF COLLIERIES. T. c. enters.

Vol. L, Price its. net (By post 21b. 8d.).	Vol. II., Price 10s. 6d. net (By post Ila.).

SUPPLEMENTARY VOL.—Price 10s. 6d. net (By post Us.).

THE COLLIEBY GU ABD IAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C. 4

LANCASHIRE BOILER fitted with SIMPLET CIRCULATOR.

For further particulars of the above, apply

THE LONDON SIMPLET ENGINEERING CO. LTD.,

■	- 20, CULLUM STREET, ===========

FENCHURCH STREET, LONDON, E.C.

PREVENT COAL MINE EXPLOSIONS

by dusting your mine with stone 'ground in the

GIANT GRIFFIN MILL,

As supplied to the leading Collieries.

Advantages—

MAXIMUM PERCENTAGE OF “FLOUR” OR IMPALPABLE

MAXIMUM FINENESS.	POWDER.

MAXIMUM OUTPUT.

’4

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 grinding
COAL. LIMESTONE. PORTLAND CEMENT.
PHOSPHATE ROCK. ORES OF ALL KINDS.

Full particulars on application to—

BRADLEY PULVERIZER CO.,

"T 37, WALBR00K, LONDON, E C.