1098

THE COLLIERY GUARDIAN.

December 8, 1916.



OWfcBW



I'

OSRAM-ATMOS

This Mark signifies lamps burning in a volume of inert gas, with
filaments of a peculiar coil formation, generally known as
“Half Watt Lamps.” They are manufactured under funda-
mental patents, at the Osram Lamp Works, Hammersmith, W.

J

$

H

&

ffl

Such lamps are approximately TWICE AS EFFICIENT as
ordinary Tungsten Lamps, and consequently GIVE DOUBLE
ILLUMINATION WITHOUT INCREASING THE COST
OF ELECTRICITY.

1

■

1

tl

hl

0

H t'WS

■

wH

PATENT



OSRAM-ATMOS TYPE LAMPS are particularly
recommended for SHIPYARDS, FACTORIES,
MILLS, DOCKYARDS, RAILWAY STATIONS,
and are extensively used by the ADMIRALTY,
WAR OFFICE and MINISTRY OF MUNITIONS.





OSRAM AIMOS

TYPE





EFFICIENCY TWICE 5HT« ORDINARY TUNGSTEN LAMP

Advt Of the GENERAL ELECTRIC C9 12T Head OffiCC.67, QUEEN VlCTORlAJST London.E.C.