|
|
|
concrete utilities full range | lanterns
|
|
Concrete Lantern
For Group B lighting, this design evolved in collaboration with
Siemens in 1945 to form part
of a concrete bracket arm. (Concrete Utilities hold the patent). "The cast concrete head carries a ring, to which
are fixed the lampholder supports, porviding three lampholder positions,
and to which a Holophane Duo-Dome refractor is
attached by three special fasteners. A quarter-turn of these fasteners
instantly frees the refractor for cleaning etc., without the removal of
any stud or nut. All rings and supports, etc., are made of non-corrodible
metal, consequently maintenance is reduced to the absolute minimum.
A Concrete Lantern for Group 'A' lighting (400W HPMV) is in course of development, and
this will incorporate an ingenious method of dissipating heat from the
lantern interior, the subject matter of a patent." The idea is to minimalise maintenance.
|
|
???
|
???
|
???
|
???
|
???
|
1945 Programme
|
|
|
|
|
