August 21, 1914.

THE COLLIERY GUARDIAN.

403

VICTOR POWDER



r'/!m

296

Biggest Pendulum swing

on

New Permitted List
of Explosives

18

OUNCES

No Thawing Required
Fumes Trivial ■ No Insensitiveness Defect



NOBEL' GLASGOW

WELDED TUBES

up to 36 in. diameter, fox*

MINING, GAS AND WATER.

EDWIN LEWIS & SONS, WOLVERHAMPTON.

WORKS :
Telegrams—“Lewis, Wolverhampton.”	Patent Iron Tube Works, Monmore Green. London Address—143, Cannon Street, E.C.

Telephone—No. 15 Wolverhampton.	Britannia Tube Works, Ettingshall.	Liverpool Warehouse—58, South John St.

The “EXHALL” OVERWIND PREVENTER

(Jackson & Staley’s Patent).

Any Engineman can understand it after once seeing it in operation.

(1). Effectually prevents the Cage being dashed into the sump boards when men are being lowered.

(2)	. The Engineman cannot start In the wrong direction.

(3)	. The Engineman cannot exceed any predetermined

speed in winding.

(4)	. Steam is shut off if winding at high speed continues

too near the end of wind.

(5)	. There are two independent mechanisms, either of

which shut off steam and apply the brakes to
prevent overwinding,

(6)	. After the action of the machine in preventing an over-

wind it can be set ready for re-use by one man, and

Winding can be Continued Within One Minute.

Adopted by OVER 120 COLLIERIES,

among which are

The Lilleshall Co. Ltd......................... 8	machines.

The Weardale Steel, Coal & Coke Co. Ltd. ...	7 machines.

The New Hucknall Colliery Co. Ltd. ............ 6	machines.

&c

Sole Makers-

NORTONS (TIVIDALE) LTD.,

Hecla Works, Tipton, ENGLAND.