1046

THE COLLIERY GUARDIAN.

December 1, 1916.

OH

g

OSRAM-ATMOS

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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.

pl

1

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

4191



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.





w

tl



OSRAMATMOS
TYPE

PATENT





EFFICIENCY TWICE ORDINARY TUNGSTEN LAM P

B Advt of the GENERAL ELECTRIC c? c? Head Offtce.67, Queen Victoriast London.E.c. B