Improv
Year: 1887

page_text: Improv
ади долонь
I, RICHARD BROWN EVERED, of 27 Drury Lane, in the County of Middlesex, Brass
Founder, 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 :-
My invention relates to lamps or lanterns chiefly designed for lighting shop-fronts.
My improved lamps are, however, applicable for lighting streets and other places.
My said invention comprises improved means for creating an upward current of air
in the lamp whilst preventing down-draught and excluding such air currents as would
be liable to cause flickering of the flame or to otherwise impair the light.
My said invention, moreover, comprises the construction of the lamp and of the
bracket or post for supporting the same, in such a manner that the said bracket or
post will serve as a wind-guard. And my said invention also comprises other
improvements hereinafter set forth.
In the accompanying drawing
Figure 1 is a plan or top view.
Figure 2 a side elevation, and
Figure 3 a rear elevation of a lamp or lantern constructed in accordance with my
said invention for lighting shop-fronts.
Figure 4 is a front elevation, partly in vertical section on the line e, a, Figure 1.
The front a of my improved lamp is glazed with transparent glass, the back, sides
and top being glazed with opal or semi-opaque glass or formed of other suitable
material so that they will serve as reflectors. The back and sides can be advantageously
used for advertising purposes if desired.
b is a reflector which is arranged in the upper part of the lamp and is made with an
extension 6 that projects into the hood or cowl c at the top of the lamp, and serves as
a chimney. The extension or chimney is made with a conical end 6, and above the
same is arranged a tubular piece d having the form of two frustrums of cones united
at their bases. This piece d is so arranged that its lower end extends into the conical
part of the chimney b'. The hood c is provided with an overhanging conical top or
cover c¹ and the said hood is formed with a row or series of perforations & immediately
beneath the said cover, to permit the escape of the heated air and products of
combustion. The said hood is also formed with a row or series of perforations c³ so

page_text: situated that air entering the same will impinge against the conical part 6 of the chimney
and will thereby be deflected in an upward direction, and thus caused to impinge
against the lower part of the piece d, whereby it will be deflected towards the
perforations c*. A current of air will thus be induced between the parts 62, d and an
up-draught produced in the body of the lamp. Holes a¹ are formed in the lower part
of the lamp for the supply of air to the burner or burners. The part c* of the hood c
is, moreover, so constructed that air can enter between the same and the glass.
The lamp is provided with a rim or flange e whereby it may be supported in a
bracket f, the part whereof is designed to encircle the lamp beneath the said flange,
as shown in Figure 2, leaving a space between the said part fl and the body of the
lamp. Beneath the said flange e, the lamp is provided with a row or series of
perforations and within the lamp beneath the said row of perforations is secured an
inclined plate h against which any air entering the said perforations will impinge, and
whereby such air will be deflected upward. This plate therefore serves efficiently as a
wind-guard. It will, moreover, be seen that, when the lamp is in place, the part f¹ of
the bracket forms an additional or supplementary wind-guard.
9,
By the peculiar construction of my improved lamp, I provide very efficient
protection against disturbance of the flame by the wind, as the overhanging cover c
of the hood c prevents the entrance of air through the perforations c² and the wind,
wherever. it enters the lamp tends to cause an up-draught therein, so that the greater
the force of the wind acting externally upon the lamp, the stronger will be the up-
draught within the same.
The whole of the top of the lamp is rivetted together and is glazed without the use
of putty. It is therefore fire-proof and there is no liability to breakage of the glass as
with ordinary lamps. Moreover the cold air admitted to the lamp through the holes
is directed upward by the wind-guard h against the top panes. This cold air together
with that admitted above the top panes, acts very efficiently in keeping these panes
cool.
g
Any suitable burner or burners may be used in my improved lamp. I prefer,
however, to use a combination gas-burner having three jets with a governor for
regulating the supply of gas.
My improved lamp, by reason of the large extent of its reflecting surfaces, requires
less consumption of gas for a given amount of light than most lamps heretofore used
for similar purposes; and I am enabled by my improvements to dispense with the
argand burners and glass chimneys heretofore largely used.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
First. The combination of the conical ended chimney ', the piece d and the
perforated hood, substantially as hereinbefore described for the purposes specified.
Second. The combination of a lamp having a projecting rim or flange, an internal
wind-guard or deflecting plate, and air-holes between the said flange and plate, with a
supporting bracket or post in such a manner that a part of the said bracket or post
will serve as an additional or supplementary wind-guard, substantially as herein before
described..
Third. The improved lamp constructed substantially as described with reference to
the accompanying drawing for the purposes specified.
n
1311
S M 1007
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.