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DIRECTIONAL STREET LIGHTING
LANTERNS
FOR
80 AND 125 WATT "OSIRA" LAMPS


Z 8155
SMALL "OXFORD" LANTERN

British Patents Nos. 458617, 424800, 408419, 427835 and 376831.

Diameter14 ins.
Height20 ins.
Weight23 lbs.
Top connection. Standard tapping ¾-inch gas thread.


G.E.C. Small Oxford Lantern

A totally enclosed dust-proof lantern specially designed for use with 80 and 125 watt OSIRA lamps. The lantern has a heavy gauge spun copper body with a cast iron top. The are inner and outer vitreous enamelled steel reflectors, the outer being hinged and provided with a locating notch to ensure the corrrect alignment of the prismatic glass bowl refractor Z 6607. The prismatic bowl refractor controls in plan the light which is bent downwards by the inner symmetric dome refractor Z 6501 as well as the direct light from the lamp, thus providing that high standard of road brightness whcih is now considered essential if good visibility is to be obtained. The light distribution is 160° non-axial asymmertic.

The lantern is fitted with a 3-slot B.C. lampholder which is wired with heat-resisting leads to the G.E.C. patent connecting box. This has been specially designed to eliminate all danger of lamp failure due to water drip or condensation.

The lampholder can be raised or lowered by means of a knurled knob projecting from the cast top, and the correct focal position for whichever wattage lamp in use can then be obtained.

The lantern can also be used with OSRAM tungsten filament lamps. It is then necessary to emply an E.S. lampholder.

The external finish of the lantern is aluminium colour and all reflecting surfaces are white vitreous enamelled.


Z 8155Small Oxford lantern.£4 18 8
Z 6607Spare Bowl Refractor.£1 14 8
Z 7607Spare Felt Gasket.3 0
Z 6501Spare Symmetric Dome Refractor.6 0



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