A Reflector for Street Lamps.
Year: 1893

page_text: Date of Application, 28th June, 1893
Complete Specification Left, 28th Mar., 1894-Accepted, 5th May, 1894
A Reflector for Street Lamps.
I, WORTLEY WILLIAM BAGGALLY of 23, Lower Phillimore Place, Kensington,
in the County of Middlesex, Gentleman, do hereby declare the nature of this
invention to be as follows :-
This invention relates to a Reflector for Street Lamps whereby a portion of the
upwardly-projected rays of light which are practically lost for the purposes of
street illumination will be intercepted and reflected for the most part horizontally
or downwardly up and down the street and so utilized for increasing the light
afforded by the direct rays from the flame.
The invention consists of two reflectors set back to back at opposite inclinations
so as to meet, or nearly so, at the lower edges in a plane coincident with that of the
flame at points beyond the side edges thereof, the central portion of the lower edges
of the reflectors being hollowed or cut away so as to leave an aperture for the
passage of the heat of the flame between the backs of the diverging reflectors.
The reflectors are adjustably stayed or otherwise secured so as to maintain them
at the proper angles of inclination to project the reflected light horizontally or
downwards and their surfaces are ribbed or formed with concentric corrugations and
they are either each made in a single piece or built up of radial strips and are
preferably concave.
In use, the double reflector is adjustably supported within the lantern so that it
may be readily fixed in position with regard to the flame or be removed for
cleaning.
Dated this 28th day of June 1803
W. W. BAGGALLY,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.
A Reflector for Street Lamps.
I, WORTLEY WILLIAM BAGGALLY, of 23, Lower Phillimore Place, Kensington,
in the County of Middlesex, Gentleman, do hereby declare 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 :-
This invention relates to a reflector for gas and other lamps used for lighting
public places, such as street lamps, etc., whereby a portion of the upwardly-
projected rays of light which are practically lost for the purposes of illumination
will be intercepted and reflected for the most part horizontally or downwardly, and
so utilized for increasing the light afforded by the direct rays from the flame.
The invention consists of two reflectors set back to back at opposite sides of, and
at opposite inclinations to, the plane of the flame so as to intercept and reflect the
upwardly-projected rays in opposite directions. These reflectors are placed above
the level of the flame but not directly over it, a sufficient space being left between
their lower edges for the passage of the heated air and gases rising from the
flame.

page_text: 45
to be had to the accompanying drawings, forming a part of this
Specification, in which
Figure is a side elevation of the lantern of a street lamp with my reflector
applied and
Figure 2 is a central vertical section of the reflectors taken at right angles to the
plane of the flame.
Figure 3 is a plan view of the reflectors as fixed on the frame by which they are
supported in the lantern.
The reflectors A A are preferably of approximately semicircular form and
concave and their surfaces are formed with concentric ribs or corrugations so as to
disperse the reflected light over a broader area. They are made of metal or glass
silvered and painted on the back and enclosed in a light frame made of metal strips
bent to a U-form in section. They are supported by means of a light frame B of
wire which is adapted to fit within the upper part of the lantern and is supported
therein by the cross-members thereof resting against the sides of the lantern frame,
whilst the end members of this frame are bent to the form shewn in Figure 2, so as
to support the reflectors A at the proper angles of inclination, the lower edges of
the reflectors being held at a proper distance apart by resting against the upwardly-
bent A-shaped portions b. The reflectors are secured to the frame by means of
clips c soldered to the latter and embracing the edges of the reflectors whilst the
rims of the reflectors have projecting tangs a at the lower corners which embrace
the end members of the frame B. The reflectors are thus securely fixed on the
frame and may be readily removed for cleaning.
The angle at which the reflectors are placed, and their distance above the level
of the flame, are such that a considerable portion of the upwardly-projected rays
will be intercepted and reflected as above described.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
The herein described double reflector for gas and other lamps, formed of two
concave corrugated reflectors set at opposite inclinations at a distance apart,
supported within the lantern, substantially as herein specified.
Dated this 28th day of March 1904
W. W. BAGGALLY,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.