156

THE COLLIERY GUARDIAN.

July 23, 1915.

'atent

&

A

9

Frost’s 0

jw 'W

,.5 ■ .....	. ' ■	A

-. .

& ' ................

lA___________

*

■v; V'

■'-■• ..

,:..L,Sgf

.___[

' s 17
l| §

.

- 'i ' 1

• " ■ ■■’•■ ' .... .'■

\	S-Z: - \

.a’ ■







See RULE 15. par, i.

SPECIAL ELECTRICITY IN MINES RULES.

“That Signalling Apparatus shall be so constructed and
worked that there shall be no open sparking.”

DAVIS-FRYAR

MECHANO-ELECTRIC SIGNALS

For Haulage Planes, &c., in Gassy Mines.

PATENT No. 5919

«---------2l

D

Oil Contact Chamber.

This System is considerably cheaper than gas-proof pushes, and more efficient.

Arrangements can be made to see the System in operation in the mine.

send FOR LIST No. 41 F.

JOHN DAVIS & SON

fnnrhvl I TO ALL SAINTS WORKS, DERBY;

U Jf I	1 LJ ■ ■ & 17, Victoria St., Westminster, London, S.W.

Telegrams—“ Davis, Derby.” Telephone—240 Derby.

To Colliery Proprietors,
IMPORTANT Engineers and

——11	—-——■	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.

MOTTIES

BRASS NAME PLATES,MOULDERS LETTERS 6 FIGURES. ETC,

HENRY PASLEY&SONS
TIHOE _________MARK

Brocco Works’ . Edward Street

TELEGRAPHIC ADDRESS. SHEFFIELD TELEPHONE N9 I I2l

.g^sy0" SHEFFIELD. MANUFACTURERS	,- -

Mechanical Engineering of Collieries.

--- By T. C. FUTERS. -

Vol. I., Price 21s. net.	Vol. II., Price 10s. 6d. net.

Supplementary Volume, Price 10s. 6d. net.

THE COLLIERY GUARDIAN CO. LTD.,

30 & 31, Furnival Street, Holborn, London, E.C.

NOBODY’S SAFE

from an outbreak of

fire. Don’t let yourself be lulled into a False Feeling of
Security—get the real protection of the

“ NEW ERA ” 30-GALL0N
CHEMICAL FIRE ENGINE

Equal to thousands of gallons of water.

ALWAYS
READY
FOR
INSTANT
USE.

Don’t wait for a
fire—write now—
to-morrow may be
too late.

Write for full
particulars.

The Valor

ASTON CROSS, BIRMINGHAM.

“ Your own

FIRE ENGINE

on your premises.”