Improvements in Lamp-reflectors..
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in Lamp-reflectors..
I, HUGO FRANZ WEHRFRITZ, of 16 Gertrudenstrasse, Hamburg, in the Empire
of Germany, Commercial Traveller, do hereby declare the nature of this invention
to be as follows:-
--
This invention relates to an improved mirror-reflector for all possible kinds of
partially open roofings or coverings of non-electric lamps or lighting devices
provided or not with protecting cylinders or chimneys for the source of light;
these roofings or coverings consisting of globular, bell-, tulip-bowl shaped, and
other devices. This mirror-reflector preferably consisting of a plate is, in
contradistinction to previously used reflectors, intended to cover up an open space
at the top of the lamp in such a form and such a position toward the source of
light, that all rays of light meeting its reflecting surface are thrown back into the
roofed or covered space and that these reflected rays, as far as they meet a
deadened or dimmed covering surface will traverse the same in the form of dimmed
light. In cases where the covering is at other places in addition, slightly open, for
instance at the bottom, or entirely transparent, then a corresponding part of the
rays is enabled to come forth in undimmed form. All the other reflected rays of
light are compelled to traverse the deadened portion of the lamp covering and this
fact constitutes an essential difference with regard to the action of reflectors which
leave a comparatively larger free space between themselves and the lamp covering.
Such reflectors namely which are arranged some distance above the covering of
illuminating devices throw the largest portion of light immediately into the space
to be lighted, without these reflected rays of light being thrown back into the
covered space of the lamp and without subsequently traversing the coverings and
being dimmed there. This particular dimming result is however obtained by this
improved lamp reflector.
Dated this-17th day of June 1895
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Lamp-reflectors.
I, HUGO FRANZ WEHRFRITZ, of 16 Gertrudenstrasse, Hamburg, in the Empire
of Germany, Commercial Traveller, do hereby declare the nature of this invention
and in what mauner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This invention relates to improvements in lamp-reflectors and refers more
particularly to an improved mirror-reflector for all kinds of partially open shades,
screens or coverings of non-electric lamps and like illuminating devices provided
or not provided with protecting cylinders or chimneys for the source of light.
To enable the invention to be fully understood I will describe the same with
reference to the accompanying drawing in which I have shown by way of example
[Price 8d.]

page_text: an incandescent gas lamp the. shade of which is provided with my improved
mirror-reflector.
The mirror-reflector preferably consisting of a plate a provided with a reflecting
surface is, in contradistinction to previously used reflectors, intended to cover up
the open space at the top of the lamp shade or covering b, which may have a
globular, bell-, tulip-bowl or other suitable form, in such a manner and in such
position with respect to the source of light, that all rays of light meeting the
reflecting surface are thrown back into the space within the said shade and that
these reflected rays, which would otherwise be lost, will pass through the shade
with reduced intensity. In cases where the shade is also open slightly at other
places, for instance at the bottom, or is entirely transparent, then a corresponding
part of the rays will pass through without any substantial reduction in their
intensity.
All the other reflected rays of light are compelled to pass through the deadened
portion of the lamp shade 6 and this fact constitutes an essential difference with
regard to the action of reflectors which leave a comparatively larger free space
between themselves and the lamp shade.
In the reflectors which are arranged some distance from the shade of illuminating
devices, the largest portion of the light is thrown immediately into the room or
chamber to be lighted, and the reflected rays are not therefore thrown back into
and through the shade so that the advantage of a subdued light is not obtained as
in the improved lamp reflector.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
'claim is :-
A mirror-reflector for all kinds of partially open shades, screens or coverings of
non-electric lamps and like illuminating devices consisting of a suitable reflecting
surface arranged to cover up the open space of the said shades, screens or coverings
in such a manner that all rays of light meeting the reflecting surface are thrown
back into the roofed or covered space of the lamps, substantially as and for the
purpose set forth.
Dated this 11th day of March 1900
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.