Improvements in Lamp Glasses.
Year: 1889

page_text: Date of Application, 20th Sept., 1889-Accepted, 26th Oct., 1889
Improvements in Lamp Glasses.
We, ERNST BOнм, of No. 53, Red Lion Street, Clerkenwell, in the County of
Middlesex, Manufacturer, and WILLOUGHBY HAMILTON POWER, of No. 20, Versailles
Road, Anerley, in the County of Surrey, Gentleman, do hereby declaro the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
Our invention relates to improvements in the removable glass chimneys and moons
of hydrocarbon lamps, gas standards, brackets, pendants and chandeliers, as well
as in the panes of square and polygonal lamps and lanterns; and the object of it
is to increase their effect as dispersers of light in given directions, by enabling
certain portions of the glass surface to concentrate and radiate the light rays
therefrom, instead of all the light being diffused equally from all portions of the
said surface.
In carrying our invention into effect, we form upon the moon or chimney one
or more solid bulbs or lenses, and these are preferably arranged at equal distances
apart upon the central zone. In the case of square or polygonal glasses, and
lamps or lanterns, each side or pane may have a central bulb or lens formed upon
it, and their number and position may be varied, if a more perfect or effective
diffusion of the rays of light could be thereby effected. And we must point out
particularly that our invention does not confine us in respect of position of the lenses.
or of their number, or of the colours of the lenses and glasses; inasmuch as position,
number, and colours of lenses and of glasses may be varied to any extent as oppor-
tunities for effect may suggest, or the necessities of the case may demand.
In order that our invention, and the means by which it is to be carried into
practical effect, may be thoroughly understood; we will describe thein in detail,
referring in so doing to the accompanying drawing which is to be taken as part of
this specification and read therewith. It shows how our invention is to be applied to
gas moons of five different shapes, and from a study thereof and of this specification,
there can be no difficulty in applying our invention to either chimneys, lantern
panes, street lamps, or moons of any contour.
Fig. 1 is an elevation, and Fig. 2 a plan, illustrating the application of our.
invention to a gas moon.
Figs. 3 to 6 are elevations illustrating the application of the same invention to
moons of various fancy shapes.
The bodies of the moons are marked A and the lenses a.
In Figs. 1, 2, 4 and 5, we shew four lenses disposed at equal distances around the
central zone; in Fig. 3, two lenses, and in Fig. 6, three lenses.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
:-
The combination with lamp glasses of the hereinbefore specified kinds of one or
more solid lenses as and for the purpose set forth.
Dated this 18th day of September 1889.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Applicants.