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BLEECO full range | Low Pressure Sodium Lanterns
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Box Pattern Lantern
This lantern is fitted with three 60W vertical burning Sodium lamps, giving a light
output of approximately 12,000 lumens. This lantern, which is made from a built-up
framework, has rippled glass panels on sides and also in the base, which is hinged
to facilitate lamp renewal, interior cleaning etc. Inside the lantern at each
side there are two refractor panels, fitted into hinged carrier frames which
can be set to give various adjustments to the light distribution, depending
on the angle at which the plates are set. This adjustment is of particular importance
where the fittings are mounted on inclines, as the disbtriubtion from the lamp
can be adjusted to suit the incline.
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???
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3x60 SO/H
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3xBC
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???
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No Gear
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1939 Programme
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"W" Lantern
Introduced in 1947. Probably originally called the Bi-Flector. "This type of thoroughfare and the general lay-out calls for lighting units giving a wide two-way directional
light distrubution of low intrinsic brilliancy with a minimum of glare, which is admirably accomplished by the adoption of the
horizontal burning Philora Sodium lamp in conjunction with the new Bi-Flector lantern. This lantern, which is totally enclosed, empolys a double reflecting optical system above
and below the lamp arranged to give a two-way axial distribution. Fitted above the lamp are two specially shaped reflectors of glass,
or anodised aluminium, designed to re-direct the upwardly emitted light in two directions between 70° and 80° from
the downward vertical. Fitted below the lamp and forming the bottom of the lantern is arranged a gable or inverted "V" section of clear polished
glass, so set as to reflect by FIRST SURFACE REFLECTION from the inside polished surface along the street, and yet transmit sufficient light
downwards for the illumination of the immediate neighbourhood of the lantern. Thus, with this arrangement a large illuminated surface area
is obtained from the lantern of low intrinsic brilliancy, covering a very wide lateral and vertical
angle with a strong directional beam up and down the roadway. The Bi-Flector lantern is constructed with
a cast hood to which is hinged a "W" section, copper body glazed on the sides and one end with clear
fluted glass sheets, the bottom gable being glazed with clear smotth sheet glass. The
body section hinges away from the hood, which gives complete accessibility to the interior for maintenance and
lamp renewal. The lantern is of pleasing appearance, sound construction and novel design, and is
covered by Provisional British Patent Application No. 3480/47."
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605
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45-60W SO/H
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BC
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Top Entry
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No Gear
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1940s leaflet
1947 advert
1947 programme
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606
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85W SO/H
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BC
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Top Entry
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No Gear
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1940s leaflet
1940s leaflet
1947 advert
1947 programme
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607
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140W SO/H
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BC
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Top Entry
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No Gear
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1940s leaflet
1940s leaflet
1947 advert
1947 programme
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Streamline Lantern (Original Finial)
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610
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45-60W SO/H
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BC
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Side Entry
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No Gear
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1940s leaflet
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611
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45-60W SO/H
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BC
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Top Entry
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No Gear
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1940s leaflet
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