AN IMPROVED APPARATUS FOR LIGHTING PURPOSES
Year: 1878

page_text: LETTERS PATENT to Michel Marie Franzini, of Naples, in the Kingdom of
Italy, and of 37, North Bank, St. John's Wood, in the County of Middlesex,,
Gentleman, for the Invention of "AN IMPROVED APPARATUS FOR LIGHTING
PURPOSES."
•
Sealed the 17th December 1878, and dated the 20th June 1878.
PROVISIONAL SPECIFICATION left by the said Michel Marie Franzini at
the Office of the Commissioners of Patents on the 20th June 1878.
MICHEL MARIE FRANZINI, of Naples, in the Kingdom of Italy, and of 37, North.
"AN IMPROVED
Bank, St. John's Wood, in the County of Middlesex, Gentleman.
APPARATUS FOR LIGHTING PURPOSES."
This Invention has for object to increase the intensity and the diffusion of the
light produced by a petroleum lamp or any other lamp, or by a gas burner. For
this purpose I place an ordinary lamp in a casing, the back of which, being half
spheroidal, is made of whitened glass, and is hinged to a frame mounted on a
support of any kind. The part of the frame forming the front of the casing is
open, so as to lodge in it a bottle or receptacle of glass, the front of which is half
spheroidal and the back is flat, in order to diffuse the light and to manage space
between it and the back of the casing, to place the lamp or the gas burner. This
receptacle is full of water, which is poured therein through a gullet or neck, and a
small space is left empty to allow place for the vapour or steam which may be
formed. An inverted conical piece, provided with a tube or pipe passing through a
cork placed in the gullet, is placed over the chimney of the lamp, and the extremity
of this tube or pipe plunges, for a small portion of its length, into the water, which
absorbs the heat and noxious smell from the lamp or gas burner.
It is clearly understood that the light produced by this apparatus is brighter and

page_text: is diffused on a larger space than the light produced by a gas burner, a petroleum,
or other kind of lamp, thereby constituting a real economy.
This apparatus can be used for lighting the streets, halls, rooms, railway stations,
or other structures.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Michel Marie Franzini in the Great Seal Patent Office on the 20th
December 1878.
MICHEL MARIE FRANZINI, of Naples, in the Kingdom of Italy, and of 37, North
Bank, St. John's Wood, in the County of Middlesex, Gentleman. "AN IMPROVED
APPARATUS FOR LIGHTING PURPOSES."
This Invention has for object to increase the intensity and the diffusion of the
light produced by a petroleum lump or any other lamp, by a gas burner, or by
electricity.
I now proceed to describe my Invention, with reference to the accompanying
Drawings.
Figure 1 is a back view of any apparatus constructed in accordance with my
Invention, and applied to a gas burner; Figure 2 is a side view of same; Figure 3
is a vertical section taken on the axis of the same, the gas burner not being in
section; Figure 4 is a plan of same; and Figure 5 shows in dotted lines the
position of my apparatus fixed to an ordinary suspension.
A is a bottle or receptacle, the front of which is half spheroidal and the back of
which is flat; this bottle is almost filled with water through an orifice or gullet «,
and a small space is left empty therein, so as to allow room for the steam or vapor
which may be formed inside the bottle A.
The edge of the flat part of the bottle is surrounded by a frame of soft metal B,
the two extremities of which are fixed by means of screws b to a round hollow
piece B forming crown, and which is placed around the gullet a. The frame B is
provided with two lugs b*, which embrace a second frame C screwed or otherwise
fixed to the support C of the whole apparatus. This frame B is folded over and
around the bottle, so as to connect them firmly together, and it is also fixed to the
frame C by means of screws c passing through the lugs and the frame C.
Opposite the bottle A is the half D) of a globe of opal or whitened glass acting as
reflector, and provided with a flange d, against which rests a circle of metal f
furnished with lugs f', through which pass the screws fx, which serve to fix the
said circle to the frame B; by this means the bottle and the globe cannot separate
one from the other.
An opening d², contrived at the bottom of the globe D, permits the passage of
the gas burner Q, and another opening at the top of the globe D allows the
escape of the heat and of the noxious smells which are absorbed by the water
contained in the bottle A, by means of the inverted funnel E terminating in a

page_text: с
tube c which passes through a cork or stopper e*, and which plunges in the water
for a small portion of its length.
It is easily understood that the light being reflected by the whitened globe D
and passing through the battle A is more inteuse and is diffused on a larger space
than the light produced originally by an ordinary gas burner, thereby constituting
a great economy.
Although the Drawings show my apparatus placed vertically it may be placed
horizontally and obliquely; when horizontally it reflects the light underneath, and
in this instance the globe D has only an opening at its centre.
My apparatus can be used for lighting streets, halls, rooms, railway stations, or
other structures, and when employed for lighting streets a cap may be placed over
it, so as to protect it from injury caused by the rain; and in order to prevent the
freezing of the water, alcohol or any chemical compound may be added to such
water.
It is well understood that my apparatus can be supported on a lamp post, on a
statue, or any suspension whatever.
Having now described the nature of the said Invention, and in what manner it
is to be performed, I declare that I claim, the combination of all parts constituting
my improved apparatus, as herein described and for the purposes set forth.
In witness whereof, I, the said Michel Marie Franzini, have hereunto set my
hand and seal, the Nineteenth day of December, in the year of our Lord
One thousand eight hundred and seventy-eight.
TATTHY
YTוחד
MICHEL MARIE FRANZINI. (LL.B.)